УСТРОЙСТВА И СПОСОБЫ ДЛЯ АНАЛИЗА ГРАДУИРОВОК ИЗОБРАЖЕНИЯ

Изобретение относится к технологиям анализа градуировок изображения. Техническим результатом является обеспечение адаптации кодирования изображаемых сцен, обеспечивающей высококачественную визуализацию изображений. Предложен способ анализа разницы, по меньшей мере, двух градуировок изображения. Способ содержит этап, на котором получают первый градуированный кадр LDR с первым динамическим диапазоном яркости. Далее согласно способу получают данные, кодирующие градуировку второго градуированного кадра HDR со вторым динамическим диапазоном яркости. Причем первый и второй динамические диапазоны яркости являются низким и высоким динамическими диапазонами яркости. Далее согласно способу определяют структуру данных разницы градуировки, содержащей характеристику, по меньшей мере, одной области, в которой присутствует разница в градуировке между первым и вторым градуированным кадром. 2 н. и 6 з.п. ф-лы, 8 ил.

СПОСОБ И УСТРОЙСТВО ДЛЯ УПРАВЛЕНИЯ ЯРКОСТЬЮ В ПОРТАТИВНОМ ТЕРМИНАЛЕ

Изобретение относится к области электроники и может быть использовано для управления яркостью в портативном терминале. Предоставлены способ и устройство для управления яркостью в портативном терминале. Способ содержит измерение температуры согласно заранее заданному периоду, извлечение значения яркости, соответствующего измеренной температуре, из таблицы сохраненной яркости, и изменение яркости портативного терминала, чтобы соответствовать извлеченному значению яркости. Технический результат - увеличение продолжительности срока службы дисплейного блока. 2 н. и 10 з.п. ф-лы, 1 табл., 6 ил.

СПОСОБ УСТАНОВКИ ПАРАМЕТРА ОТОБРАЖЕНИЯ И СИСТЕМА ЖИДКОКРИСТАЛЛИЧЕСКОГО ДИСПЛЕЯ

Изобретение относится к области технологии жидкокристаллического дисплея. Технический результат – обеспечение автоматической установки параметра отображения для жидкокристаллической панели отображения. Способ установки параметра отображения включает: получение первого значения яркости, когда жидкокристаллическая панель отображения отображает изображение минимального оттенка серого, и второго значения яркости, когда жидкокристаллическая панель отображения отображает изображение максимального оттенка серого; на основе полученных значений получение целевого значения яркости каждого оттенка серого, соответствующего стандартной кривой гамма-распределения; на основе целевого значения яркости каждого оттенка серого и отношения между напряжением оттенков серого и значением яркости жидкокристаллической панели отображения, получение целевого напряжения оттенков серого каждого оттенка серого; и установку напряжения оттенков серого каждого оттенка серого на целевое напряжение оттенков серого шкалы ...

УЗЕЛ ЭКРАНА ДИСПЛЕЯ И ЭЛЕКТРОННОЕ УСТРОЙСТВО

Изобретение относится к узлу экрана дисплея и электронному устройству. Техническим результатом является повышение точности управления состоянием экрана дисплея. Предложен узел экрана дисплея и электронное устройство. Узел экрана дисплея включает в себя экран дисплея и блок датчиков, расположенный на стороне экрана дисплея. Экран дисплея включает в себя область отображения и область неотображения. Блок датчиков включает в себя излучатель сигнала и приемник сигнала, причем излучатель сигнала расположен на стороне области неотображения, а приемник сигнала расположен на стороне области отображения. Область неотображения включает в себя функциональную часть, излучатель сигнала выполнен с возможностью излучать сигнал обнаружения наружу через функциональную часть, а приемник сигнала выполнен с возможностью принимать отраженный сигнал снаружи через экран дисплея, при этом сигнал обнаружения превращается в отраженный сигнал после отражения внешним объектом. 2 н. и 13 з.п. ф-лы, 12 ил.

УЗЕЛ ЭКРАНА ДИСПЛЕЯ И ЭЛЕКТРОННОЕ УСТРОЙСТВО

Изобретение относится к узлу экрана дисплея и электронному устройству. Техническим результатом является обеспечение более точного управления яркостью экрана дисплея в соответствии с воспринимаемыми точными данными, что обеспечивает удобство для использования пользователем. Предложен узел экрана дисплея, который включает в себя экран дисплея и датчик окружающего освещения. Датчик окружающего освещения расположен с внутренней стороны экрана дисплея, ориентирован к периферии экрана дисплея и выполнен с возможностью воспринимать интенсивность окружающего света, падающего на датчик окружающего освещения с периферии экрана дисплея, при этом датчик окружающего освещения выполнен с возможностью воспринимать интенсивность окружающего света во втором направлении, при этом первое направление имеет внутренний угол относительно второго направления, и внутренний угол составляет менее 135 градусов и более 45 градусов. 2 н. и 14 з.п. ф-лы, 14 ил.

СВЕТОДИОДНОЕ УСТРОЙСТВО ОТОБРАЖЕНИЯ И УСТРОЙСТВО ОТОБРАЖЕНИЯ ВИДЕО

Изобретение относится к светодиодным устройствам отображениям и устройствам отображения видео, а именно к управлению яркостями светодиодов. Техническим результатом является обеспечение компенсации плохого обзора экрана дисплея, вызванного изменениями характеристик яркости у отдельных светодиодов, без необходимости прекращения работы устройства. Светодиодное устройство отображения включает в себя блок старения светодиодов, блок вычисления поправочных коэффициентов и схему коррекции яркости. Блок старения светодиодов включает дисплей старения светодиодов, включающий второй светодиод, измеритель яркости, измеряющий величины уменьшения яркости у второго светодиода на каждый цвет согласно периодам свечения первых светодиодов, и хранилище величин уменьшения яркости, хранящее величины уменьшения яркости. Блок вычисления поправочных коэффициентов вычисляет поправочные коэффициенты для коррекции яркостей первых светодиодов на каждый цвет в соответствии с совокупными периодами свечения первых светодиодов ...

СПОСОБ И УСТРОЙСТВО ДЛЯ КОРРЕКТИРОВКИ ЯРКОСТИ ОТОБРАЖЕНИЯ

Изобретение относится к области обработки изображений, а именно к корректировке яркости отображения. Технический результат – повышение эффективности корректировки яркости интерфейса дисплея. Способ корректировки яркости отображения содержит этапы, на которых: получают исходные значения серой шкалы пикселей на интерфейсе отображения; выполняют преобразование серой шкалы по исходным значениям серой шкалы пикселей для получения преобразованных значений серой шкалы пикселей; корректируют значения серой шкалы интерфейса отображения согласно преобразованным значениям серой шкалы пикселей; причем после того как яркость откорректирована, требуется снова определить яркость в различных положениях дисплея, и затем значения серой шкалы частей с различной яркостью соответствующим образом корректируются в различной степени; и при этом значения серой шкалы каждого пикселя корректируется согласно яркости каждого пикселя на дисплее. 3 н. и 18 з.п. ф-лы, 24 ил., 1 табл.

Veränderung eines graphischen Anzeigebildes

VORRICHTUNG ZUR VERARBEITUNG EINES NUMERISCHEN BILDES FÜR FENSTERBREITE, PEGEL UND CHARAKTERISTISCHE KURVE

Betriebsverfahren für ein Computersystem, Steuersoftware und Computersystem

Die Erfindung betrifft ein Betriebsverfahren für ein Computersystem (1) mit wenigstens zwei Bildschirmanzeigegeräten (3a, 3b) und einem Arbeitsplatzrechner (2) mit den Schritten: - Auswählen eines Bildschirmanzeigegeräts (3a) mit wenigstens einem Sensor (10a) zum Erfassen einer Umgebungsbedingung als Master-Bildschirmanzeigegerät, wobei eine Steuersoftware (9) einer Recheneinheit (4) des Arbeitsplatzrechners (2) das Master-Bildschirmanzeigegerät (3a) auswählt; - Auswählen wenigstens eines anderen Bildschirmanzeigegeräts (3b) als Slave-Bildschirmanzeigegerät, wobei die Steuersoftware (9) alle übrigen Bildschirmanzeigegeräte (3b, 3c) des Computersystems (1) als Slave-Bildschirmanzeigegeräte auswählt; - Erfassen wenigstens eines Sensorwertes des wenigstens einen Sensors (10a) des Master-Bildschirmanzeigegeräts (3a), wobei der erfasste wenigstens eine Sensorwert des Master-Bildschirmanzeigegeräts (3a) an die Steuersoftware (9) übertragen wird; und - Anpassen wenigstens einer Bildschirmeinstellung ...

Video display monitor with signal amplitude and contrast controls - employs additional source of filtered white noise whose output is superimposed on brightness control for conventional video circuitry

The display monitor has a video control circuit (2) adjusting the brightness of the display on a CRT (6). The contrast is varied by another control (7) incorporating a white noise generator (71) and a filter (72) having an attenuation characteristic of minus 3 dB/octave, and feeding the brightness control (3) by capacitive coupling (9). The contrast control signal varies in the manner of a 1/f fluctuation so that the brightness varies with time while the scanning operation proceeds with constant period. ADVANTAGE - Screen flicker reduced to minimise operator eyestrain without significant increase in cost of the appts.

Verfahren, Vorrichtung und Computerprogramm zum Ansteuern einer Anzeigevorrichtung

Ausführungsbeispiele betreffen ein Verfahren (1) zum Ansteuern einer Anzeigevorrichtung (5). Dazu wird in einem Vorgang (3) ein Eingangssignal (4) mit einer Information über einen für einen Benutzer bereitzustellenden Beleuchtungsverlauf empfangen. In einem weiteren Vorgang (7) wird ein Anzeigesignal (8) mit einer Information über einen Inhalt, der auf einer Anzeigefläche (9) der Anzeigevorrichtung (2) dargestellt werden soll, empfangen. Basierend auf dem Empfang des Eingangssignals (4) und des Anzeigesignals (8) wird in einem Vorgang (10) ein Steuersignal (11) erzeugt. Dass Steuersignal (11) ist ausgebildet, um die Anzeigevorrichtung (2) derart anzusteuern, dass auf der Anzeigefläche (9) ein dem Anzeigesignal (8) entsprechender Inhalt wiedergegeben wird, und die Anzeigefläche (9) einen der Information des Eingangssignals (4) entsprechenden Beleuchtungsverlauf für den Benutzer bereitstellt.

Anordnung zum Überwachen einer Umgebungsbedingung und Verfahren zum automatischen Einstellen einer Anzeigeeinheit

Die Erfindung betrifft eine Anordnung (10) zur Überwachung einer Umgebungsbedingung, aufweisend eine Anzeigeeinheit (2) zum Anzeigen von Bildschirminhalten, eine Kamera (4) zum Erfassen von Bildinformationen in einem Benutzerbereich (5) der Anzeigeeinheit (2) und eine Steuervorrichtung (11), die mit Anzeigeeinheit (2) und der Kamera (4) funktionsfähig gekoppelt ist. Dabei ist die Steuervorrichtung (11) dazu eingerichtet, in vorbestimmten zeitlichen Abständen Helligkeitsdaten (I) durch die Kamera (4) zu erfassen, eine Differenzanalyse zwischen den erfassten Helligkeitsdaten (I) durchzuführen und, basierend auf der Differenzanalyse, wenigstens einen Betriebsparameter (13) der Anzeigeeinheit (2) einzustellen. Die Erfindung betrifft außerdem Verfahren (40, 50) zur Verwendung mit derartigen Anordnungen (10).

Karten-Anzeigeeinrichtung und Verfahren dazu

Vorgeschlagen werden eine Karten-Anzeigeeinrichtung mit einer Anzeigeeinheit zur Darstellung eines Kartenausschnitts, mit Auswahlmitteln zum Bestimmen eines Teilbereichs des auf der Anzeigeeinheit darzustellenden Kartenausschnitts, derart, dass dieseeinen Ereignisort umfasst, und mit Mitteln zur Ansteuerung der Anzeigeeinheit, derart, das im ausgewählten Teilbereich enthaltene Kartenelemente gegenüber dem übrigen Kartenausschnitt hervorgehoben dargestellt werden, sowie ein Verfahren zur Steuerung einer Kartendarstellung auf einer Anzeigeeinheit, wobei ein Teilbereich eines auf der Anzeigeeinheit darzustellenden Kartenausschnitts bestimmt wird, welcher Teilbereich einen Manöverpunkt und/oder Standort oder einen Ereignisort umfasst, und wobei im ausgewählten Teilbereich enthaltene Kartenelemente gegenüber dem übrigen Kartenausschnitt hervorgehoben dargestellt werden. Die Erfindung hat den besonderen Vorteil, dass der Benutzer die für ihn besonders wichtigen Informationen innerhalb einer Kartendarstellung ...

MULTIWINDOW DISPLAY CIRCUIT

Computer monitor with dual-purpose control switches,and method for providing screen-control switches on a computer monitor with different functions

Improving contrast of liquid crystal display

A method of driving a liquid crystal display in which the contrast can be selectively emphasized dependent upon the input data. The input data is converted into brightness components and chrominance components. The most-frequent brightness component is extracted from a histogram of the brightness components, and the histogram is divided into regions, which are rearranged in correspondence with the extracted most-frequent value. The brightness components of each region are then modified using a curve having a slope that is dependent upon the total number of brightness components in the particular region. Data in which the contrast ratio has been selectively emphasized is generated using the modulated brightness components and the chrominance components.

Multiwindow display circuit

A multiwindow display circuit comprises a horizontal boundary memory for storing horizontal boundary data of display windows, a vertical boundary memory for storing vertical boundary data of the display windows, a display address memory for storing an address of each of the display windows, a picture information memory for storing picture information related to the address stored within the display address memory, a bias value memory for storing bias values for the display windows, an address converter for adding a selected one of the bias values to the address of the display address memory to convert the display address, a window select circuit for selecting a single window from among the display windows, a display timing controller for changing a code representative of the single window, and a display responsive to the display timing controller for displaying any portion of the picture information memory in any area of the display.

Method of raising contrast of OLED display panel and system

DEVICE AND PROCEDURE FOR ADJUSTMENT THE PICTURE CHARACTERISTICS ON AN INDICATOR

RECONSTRUCTION OF A VIRTUAL RASTER

IMPROVEMENT OF THE WINDOW BRIGHTNESS FOR AN LCD ANNOUNCEMENT

INDICATOR

Method for detecting ambient light intensity, storage medium and electronic device

A method for detecting ambient light intensity, a storage medium and an electronic device (100) are provided. The method includes: controlling a preset region (23) of a display screen (20) of the electronic device (100) to display a predetermined picture, wherein the preset region (23) is a region facing an ambient light sensor (50) of the electronic device (100) in the display screen (20), and the predetermined picture is a pure color picture (S110); obtaining an ambient light intensity value detected by the ambient light sensor (50) (S120); controlling the display screen (20) to respond according to the ambient light intensity value (S130). Because the preset region (23) of the display screen (20) is controlled to display the predetermined picture, light emitted from the preset region (23) to the ambient light sensor (50) is reduced. Thus, influence of the display screen (20) on the ambient light sensor (50) may be reduced, and detection accuracy of the ambient light sensor (50) may be ...

PORTABLE VIDEO DISPLAY DEVICE

Optical system and method to mimic zero-border display

A system and methods to extending the overall display area for a device. At or near the borders of a device, pixel pitch between adjacent pixels may be increased such that overall pixel placement may be provided closer to a border of a display of a device. In one embodiment, pixel drive circuitry may be located in the spacing between adjacent pixels. Additionally, various optical systems and techniques may be utilized to provide an appearance of a lack of a border around the display such as decreasing the size of border pixels, overdriving the border pixels, or utilizing a light pipe on a surface above the border pixels.

DISPLAY APPARATUS AND IMAGE CONTROL METHOD THEREOF

A display apparatus includes a display panel and a driving module. The driving module is electrically connected with the display panel and has an image processing circuit and a data driving circuit. The image processing circuit receives a first image signal of a frame time. When an average gray level of the first image signal is greater than or equal to a first setting gray level, the image processing circuit reduces gray levels of the first image signal according to a first ratio to obtain a second image signal. The data driving circuit receives the second image signal and drives the display panel to display an image according to the second image signal. An image control method of the display panel is also disclosed. 1600 ------- --- ------ -- - ---- -- 1200 ------- -- - -- ------ ---- - ------- 20--0 1--G--.----- --lB -- --- --- --- ---- 800 0 --- --------- --- - - --- - - - - - -- - - 6 0 --- - --- -- ------ - -------- ---- ------ ------- --- - 4 - ------- - - -- - - - ----- ----- -- ...

High resolution OLED display operation circuit

A light-emitting display panel sub-pixel circuit, comprising: at least three switches; at least one capacitive element; at least one light-emitting element; a power line serving as a wire for connecting the at least three switches, the at least one capacitive element, and the at least one light-emitting element; an earth line; a scan line for selecting a sub-pixel for light emission; a data line for supplying data to the light-emitting element; and a sense line for detecting degradation of the light-emitting element, wherein the data corresponding to a predetermined luminous intensity are programmed on the basis of a voltage.

Image processing device and image processing method

The present invention solves or at least reduces the problem related to a mismatch between the dynamic range of an HDR video signal and the peak luminance of a display. Provided is an image processing device equipped with a conversion unit which converts an image signal based on a signal system, in which the display luminance level of reference white is fixed, into a display signal with the image signal subjected to gamma conversion using parameters determined on the basis of the peak luminance level of the display so that the display luminance level of the reference white is maintained.

Automatic luminance adjustment device and method

Automatic luminance adjustment device and method

PRODUCING AMPLITUDE VALUES FOR CONTROLLING PIXEL ILLUMINATION ON A SONAR DISPLAY

MULTIPLE ORIENTATION MOBILE ELECTRONIC HANDHELD DEVICE AND METHOD OF AMBIENT LIGHT SENSING AND BACKLIGHT ADJUSTMENT IMPLEMENTED THEREIN

A method is set forth for automatically adjusting display brightness on a mobile electronic device having a light sensor, display screen and orientation sensor, for legibility under varying lighting conditions and orientations of the device. The method includes obtaining light level samples from the light sensor, and orientation from the orientation sensor, and adjusting backlight intensity of the display responsive to the light level samples and orientation of the device. Preferably, backlight adjustments are made from dim to bright notwithstanding orientation of the device whereas adjustments from bright to dim are made only for orientations of the device where the light sensor is unlikely to be covered.

WAVE GUIDE FOR IMPROVING LIGHT SENSOR ANGULAR RESPONSE

SYNCHRONIZING SIGNAL AUTOMATIC SELECTING CIRCUIT

A synchronizing signal automatic selecting circuit comprises a signal inverter for inverting synchronizing signal from synchronizing signal separating circuit, a synchronizing signal detector for detecting synchronizing signal when synchronizing signal is input to horizontal, horizontal/vertical synchronizing signal input terminal and ground output signal of the signal inverter, a polarity detecting circuit for detecting the synchronizing signal polarity of the horizontal and horizontal/vertical synchronizing signal input terminal and a vertical synchronizing signal separator for separating the vertical synchronizing signal from output signal of a transistor. The circuit is designed to select automatically with priority the synchronizing signal when the composite video signal and the synchronizing signal are input at the same time to a monitor used for a peripheral equipment of a computer. It is not necessary to change the switch separately.

DISPLAY CONTROL APPARATUS

In a display control apparatus wherein a picture signal of a character, a pattern or the like and a luminance signal for affording a luminance to the picture signal are synchronously derived, and a logic between the picture signal and the luminance signal is taken to control the luminance of the picture signal; a display control apparatus comprising pulse width adjusters by which, when one signal is true with the other signal being false, the true signal is put within an interval of the false signal and is held false for fixed times before and after a true signal interval thereof, and when both logics of the respective signals are true or false, true or false intervals of both the signals are adjusted so as to become equal.

SYSTEM FOR PRODUCING DITHERED IMAGES FROM CONTINUOUS-TONE IMAGE DATA

... 83-417 A digital image processing system for converting continuous tone pixel values representing an image into halftone or dithered pixel values, with the dithered pixel values representing each pixel having fewer bits than are used to represent each pixel in the continuous tone image. The continuous tone pixel for a line of pixels is loaded into an input buffer circuit having a plurality of storage locations, with each location storing the continuous-tone values for one pixel. Iteratively, the pixel value from each location is modified by a perturbed weighted error value, and then quantized to form the output halftone or dithered pixel value. An error value is then determined which is used in processing of subsequent continuous tone pixel values. The processing of the continuous tone pixel values proceeds in a serpentine manner over the image, that is, processing of adjacent lines of the continuous tone pixel data proceeds in opposite directions.

SYSTEM AND METHOD FOR ADJUSTING AN INTENSITY VALUE AND A BACKLIGHT LEVEL FOR A DISPLAY OF AN ELECTRONIC DEVICE

The disclosure relates to a system and method for determining pixel intensity values (luma values) for an image being displayed on a display of an electronic device, then adjusting the pixel intensity and the backlight level for the image that is output to a liquid crystal display (LCD). The system comprises: a display for displaying an image to be displayed on the device; an image adjustment module to identify the pixel intensity values of the image, to determine new pixel intensity values for the image based in part on the original pixel intensity values, to provide the (adjusted) image at the new pixel intensity values to the display and to determine a backlight level for the image at the new pixel intensity values. The system further comprises a backlight system to provide a backlight for the adjusted image at the adjusted backlight level.

IMAGE PROCESSING APPARATUS AND IMAGE PROCESSING METHOD

An image processing apparatus and an image processing method which can transmit/receive or display a high-dynamic-range image suitably are provided. An image transmission apparatus transfers, as metadata of content, luminance conversion information, which is for conversion of HDR content (for example, with maximum luminance 2000 nit) into SDR content (having, for example, 100 nit), or differential information. Based on the metadata, an image reception apparatus generates luminance conversion information, in which received HDR content is adapted to a capability of a display (for example, with maximum luminance 500 nit or 1000 nit) in an output destination, and realizes display mapping which is not against an intention of a producer.

METHODS AND DEVICES FOR DISPLAYING AN OVERLAY ON A DEVICE DISPLAY SCREEN

Disclosed herein is a camera unit configured to capture an image, and a microprocessor configured to control a display to display the image and an overlay substantially simultaneously. In one broad aspect, at least one of the level of transparency, the brightness level, and the color value of the overlay is determined based on a representative brightness level and/or a representative color value associated with the image being displayed.

ELECTRONIC DEVICE AND METHOD OF ILLUMINATION

A method and system are set forth for automatically adjusting a source of illumination based on an image at a display. An electronic device includes a source of illumination, a display and an ambient light sensor. A lighting level for the source of illumination is calculated based on ambient light detected by the ambient light sensor, the lighting level applied to lighting a portion of the electronic device other than the display. A luminance level of an image at the display is calculated. lf the calculated lighting level for the source of illumination exceeds the calculated luminance level of the image at the display then the lighting level for the source of illumination is adjusted to no greater than the calculated luminance level.

BACKLIGHT CONTROL FOR A HANDHELD COMPUTING DEVICE

A system and for adjusting a backlight of a display of a computing device are provided. The method comprises: setting the intensity of the backlight to a first intensity level; and setting the intensity to a second level different from the first level after expiry of a predetermined elapsed time of non-activity from a user data input means of the device either by gradually decreasing the intensity from the first intensity level to the second level or by rapidly decreasing the intensity from the first intensity level to the second level so that the change in intensity appears substantially instantaneous. In the method, one of the setting the intensity to the first level and the setting the intensity to the second level comprises transitioning the intensity to the level, the transitioning being interruptible by a user of the computing device, upon interruption of the transitioning the intensity being set to a magnitude subsisting at the instant of the interruption.

METHOD AND APPARATUS FOR CONTROLLING BRIGHTNESS IN A PORTABLE TERMINAL

A method and an apparatus for controlling brightness in a portable terminal are provided. The method comprises measuring temperature according to a preset period, extracting a brightness value mapped to the measured temperature from a stored brightness table, and changing a brightness of the portable terminal to correspond to the extracted brightness value.

AUTOMATIC BRIGHTNESS COMPENSATION FOR X-RAY IMAGING SYSTEMS

METHOD AND APPARATUS FOR DYNAMIC PURITY CORRECTION

The invention pertains to a method and apparatus for performing dynamic purity correction to ensure that color purity is maintained across the face of a color monitor (100). The monitor displays a plurality of pixels, each having a particular luminescence value. Each luminescence value has several color components (e g. red (R), green (G), and blue (B)). A grid of luminance measurements is made across the face of the monitor for each color component. From these luminance value grids, smoothly varying correction values are computed for each color component of each pixel by the interpolation of cubic splines, such as a Catmull-Room spline. Incoming digital video signals are multiplied by corresponding correction values to ensure color accuracy of the monitor. In a preferred embodiment, the calculation of correction values is repeatedly performed in real time (at the display clock rate) in a single monolithic RAMDAC integrated circuit to increase speed, improve fidelity, and minimize use of ...

Method, medium, and system implementing wide angle viewing

Display screen brightness detection method and device, terminal and storage medium

Method and device for adjusting screen brightness

Portable display device and dynamic energy saving method

The invention discloses a portable display device and a dynamic energy-saving method thereof. The display device comprises a display panel, a battery supply for supplying power to the display panel, an adaptive controller for outputting signals to control the display panel, a video analyzer for providing a first input signal for the adaptive controller, and a remaining displaying time estimator, wherein, the remaining displaying time estimator determines the remaining displaying time of the portable display device and provides a second input signal to the adaptive controller according to the remaining displaying time to control the image display on the display panel. The technical proposal can dynamically adjust the electricity-saving mode of the portable display device, so as to save more electric power during variation of the battery power.

Display control method and electronic equipment

The invention provides a display control method and electronic equipment. The display control method comprises the steps of: sensing first environmental data of first environmental information; sensing second environmental data of the first environmental information; comparing the first environmental data with the second environmental data to obtain change amount of the first environmental information; judging whether the change amount of the first environmental information is greater than a predefined threshold value; and is so, sensing second environmental information, wherein power consumption required by the electronic equipment for sensing the first environmental information is lower than power consumption required by the electronic equipment for sensing the second environmental information.

Method for displaying an image, image display apparatus, method for driving an image display apparatus and apparatus for driving an image display panel

Method and device for adjusting backlight brightness of display screen of terminal and terminal

Information terminal

Image display device and method

Display driver and electronic instrument

Method and device for adjusting light-source brightness

Method and electronic equipment for adjusting brightness of display

The invention provides a method and electric equipment for adjusting brightness of a display. The display comprises pixels, each pixel is provided with a corresponding light source which has a Gamma value, and the Gamma values are in positive correlation with the brightness of the light sources. The method includes the steps that a standard Gamma curve for adjusting the brightness of the display is obtained; all application scenes of the display are obtained; in each application scene, the display is used for processing pictures needing displaying by the application scene, an application Gamma curve is set up for at least one application scene, and the application Gamma curve deviates from the standard Gamma curve. The gray scale brightness output by the display is adjusted by adjusting the Gamma curves according to the needs for processing pictures, input picture data can be analyzed without depending on a hardware circuit, the brightness output by the display can be matched with display ...

Electronic device

Conversion method and conversion device

Display device

Motion position detection method, screen brightness adjusting method and intelligent device

Method of displaying images and display apparatus applying the same

A method of displaying an object image desired by a user on a display apparatus such as an electronic picture frame, without needing to rotate or cut the object image, and a display apparatus to which the method of displaying is applied are provided. The displaying method comprises: determining a background image; generating a display image by synthesizing the background image and an object image; and displaying the display image.

Terminal screen control method and terminal

The invention provides a terminal screen control method. The method comprises the following steps that after a terminal detects that the time that human eyes stare at a terminal screen exceeds a given time, a screen lightening control signal is generated; and the terminal lightens the terminal screen according to the screen lightening control signal. The invention also provides the terminal. The terminal screen control method provided by the invention has the advantages that operation of a user and wastage of the terminal are reduced, electric quantity can be saved to certain degree, and the incidence caused by mistaken pressing is reduced.

Method and system for color correction based on customized light source duty ratio

The invention discloses a method and a system for color correction based on the customized light source duty ratio. The method includes the steps: respectively computing unit duty ratio brightness of each color light source according to the duty ratio of the current state of various colors of a multi-screen display device and chromaticity and brightness displayed by the multi-screen display device; when target white is corrected, computing the correction duty ratio of the color light sources according to the unit duty ratio; and correcting each color light source of the multi-screen display device by the aid of the correction duty ratio. By the method and the system, respective correction duty ratio of the color light source of each display unit is customized to meet the target white, chromaticity consistency of the target white displayed by the display units can be guaranteed from the source, and correction display effect of the display units is improved.

Screen transmission luminance adjustment method and related products

Portable electronic device with dynamically tunable backlight and dynamically tuning method thereof

The invention provides a method for the dynamic adjustment of backlight. The method comprises the following steps that: a portable electronic device is provided and comprises an image sensing unit, a signal processing unit, a backlight module group and a backlight adjustment unit; the image sensing unit realizes the sensing of the light in the outside environment to form a light image signal, and sends the signal to the signal processing unit; the signal processing unit, according to the received light image signal, judges needed backlight luminance and sends an instruction to the backlight adjustment unit; and the backlight adjustment unit controls the backlight luminance provided by the backlight module group according to the instruction. The invention also provides a portable electronic device which can realize dynamic adjustment of backlight and has lower cost and convenient use.

Display device

Control system for intelligently adjusting brightness of computer screen and control method

Pixel rendering method and pixel rendering device

The eyesight protection method and apparatus

RGB transfer RGBW method and system

A power supply is insufficient automatic high brightness display method and apparatus thereof

The control method, the control device and electronic device

System and method for automated calibration and correction of display geometry and color

LCD device high dynamic contrast processing equipment and method

The invention relates to a high-dynamic contrast processing device and a processing method used for an LCD. The processing device comprises a receiver which is connected with a central processing module, an inverter and a source actuation integrated-circuit. The processing method includes the following steps: a histogram statistical processing is carried out for received low-voltage difference signal data; back light source brightness control parameters and gamma referential voltage parameters of the same frame video are obtained according to the statistical processing result; the brightness of the back light source is controlled according to the back light source brightness control parameters; the voltage of pixel capacitance on a liquid crystal panel is controlled according to the gammareferential voltage parameters. The invention simultaneously and respectively regulates the brightness of the back light source and the gamma referential voltage parameters of the liquid crystal panel, ...

Image display device and control method

A method of adjusting display brightness and electronic apparatus

Projection display system and control method of the projection display device

Gamma adjustment with error diffusion for electrophoretic displays

Image display device

Fast screen brightness reducing method of portable mobile terminal

Apparatus and method for low brightness display

The present invention provides a device of low-brightness display and a method thereof, wherein the device mainly comprises the following components: a start module used to start an operating system; a microprocessor used for receiving brightness adjustment instruction transmitted by user, and judge brightness display status of current operating system; a signal correction module used to correct operating system brightness according to system brightness display status and transmit a set signal; and a display module used to receive and display the set signal transmitted by signal correction module. Besides, the display method mainly comprises the following steps: starting operating system; receiving bright adjustment instruction from user and judging brightness display status of current operating system; judging if need to correct brightness of display system according to brightness display status of operating system, and transmitting a set signal. Display low-brightness mode when the transmitted ...

Method for intelligently turning on screen of mobile equipment, and mobile equipment

Adjusting peak signals in transition frames

A non-transitory computer readable storage medium includes instructions stored thereon. When executed by the at least one processor, the instructions are configured to cause the computing device to modify the transition frame in response to the instruction transitioning from the first refresh rate to the second refresh rate. Modifying the transition frame may include refreshing a first row in the display with a first adjustment to a peak signal of at least one pixel in the first row and refreshing a second row in the display with a second adjustment to a peak signal of at least one pixel in a second row, the second row being refreshed after the second row, the second adjustment is greater than the first adjustment.

Holographic interactive display system

A holographic interactive display system disclosed by the present invention comprises an induction module, an information center module, a storage center module and a holographic delivery module, the induction module comprises a human body judgment front end and an information transmission module, and the human body judgment front end comprises a human body induction module, an emotion judgment module, a face recognition module and a human body limb recognition module. The information transmission module comprises a first transmission module and a second transmission module. According to the system, the voice recognizer and the human body camera are used for collecting information such as voice, facial expressions and limb actions of a crowd, then the display requirement of the crowd is obtained, the needed display information is transmitted to the holographic delivery module, and the display information is delivered to the front end of the crowd; the human body interaction recognition ...

Brightness data determination method and device of display panel, equipment and storage medium

The invention discloses a brightness data determination method and device of a display panel, equipment and a storage medium, and relates to the technical field of display. The display panel comprises a plurality of first test areas and a plurality of second test areas, and the first test areas and the second test areas are alternately distributed in a display area of the display panel; the method comprises the following steps: acquiring at least part of first brightness data corresponding to a first test area through acquisition equipment; acquiring at least part of second brightness data corresponding to the second test area through the acquisition equipment; and integrating the first brightness data and the second brightness data to obtain first target brightness data. According to the embodiment of the invention, the cost of the acquisition equipment can be reduced.

Brightness compensation method and device and computer readable storage medium

The embodiment of the invention provides a brightness compensation method and device and a computer readable storage medium. The method comprises the steps that a display area of a first display panel is divided into a plurality of subareas; displaying a white picture and N-color monochromatic pictures of the target gray scale binding point, wherein N is a positive integer; for each partition, obtaining a first brightness of the partition when the white picture is displayed and a second brightness of the partition when the N-color monochromatic picture is displayed; determining a first compensation coefficient corresponding to the partition according to the brightness difference between the first brightness and the second brightness; compensating external optical compensation data of the first display panel according to the first compensation coefficients corresponding to the plurality of partitions to obtain compensated external optical compensation data; determining a compensation value ...

DEVICE TO DETERMINE the CONTRAST Of a SCREEN Of POSTING ACCORDING TO the DIRECTION Of OBSERVATION

METHOD OF MANAGING THE DISPLAY OF THE TOUCH PANEL OF A CONTROL INTERFACE FOR MOTOR VEHICLE

La présente invention concerne un procédé de gestion de l'affichage de l'écran tactile d'une interface de commande pour véhicule automobile comportant les étapes suivantes : - détection, alors que l'affichage de l'écran tactile est allumé, d'un appui glissé de l'un des doigts d'un l'utilisateur sur l'écran depuis un premier bord de cet écran et en direction du bord opposé (100) ; - détection du retrait dudit doigt de l'écran tactile (300) ; et - extinction de l'affichage de l'écran tactile (800).

A METHOD FOR POSTING an IMAGE ON a SCREEN Of an AIRCRAFT

Dans un aspect du procédé pour afficher une image (30) sur un écran (18) d'un poste de pilotage d'un aéronef, des moyens de commande (16) : - commandent un premier affichage sur l'écran d'une image comprenant un fond (32) ; puis - commandent un deuxième affichage de sorte que, au moins dans une zone (38, 40, 42, 48) de l'image, déterminée indépendamment du fond, le fond présente une deuxième luminance moyenne non nulle inférieure à une première luminance moyenne qu'il présentait lors du premier affichage. Dans un autre aspect, les moyens de commande (16) commandent l'affichage sur l'écran (18) d'une image (30) comprenant un fond (32) de sorte que, au moins dans une zone (38, 40, 42, 48) de l'image, déterminée indépendamment du fond, le fond présente une luminance moyenne non nulle inférieure à une luminance moyenne du reste du fond.

DEVICE TO IMPROVE LEGIBILITY OF ALPHAMOSAIC NATURES

Display Driver and Driving Method Thereof

주변광 레벨들에 기초한 적응적 이미지 렌더링을 위한 장치 및 방법

... 본 개시는, 전력 소비에서의 과도한 증가없이 높은 주변 컨디션들에서의 디스플레이 가시가능성을 향상하기 위해 컴퓨터 저장 매체들 상에서 인코딩된 컴퓨터 프로그램들을 포함하는 시스템들, 방법들 및 장치를 제공한다. 일 양태에 있어서, 디스플레이 디바이스와 연관된 제어기는 주변광 센서로부터 또는 디스플레이 디바이스를 호스팅하는 호스트 디바이스로부터 주변광 컨디션들의 표시를 획득하도록 구성될 수 있다. 이미지 프레임을 수신할 시, 제어기는, 컬러 서브필드들의 세트를 도출하고, 주변광의 범위들을, 컬러 서브필드별 기반으로 개별 비트-심도 값들에 매핑하는 매핑 데이터 및 현재의 주변광 컨디션들의 획득된 표시에 기초하여 각각의 컬러 서브필드에 대한 비트-심도 값을 결정할 수 있다. 그 후, 제어기는 개별 결정된 비트-심도 값에 기초하여 각각의 컬러 서브필드에 대한 다수의 서브프레임들을 생성하고, 생성된 서브프레임들이 디스플레이되게 할 수 있다.

GATE DRIVING CIRCUIT, DISPLAY PANEL, DISPLAY DEVICE

FLAT PANEL DISPLAY DEVICE AND PICTURE QUALITY CONTROL METHOD THEREOF CAPABLE OF COMPENSATING MURA PATTERNS BY USING INCREASED NUMBER OF GRAY LEVELS

PURPOSE: A flat panel display device and a picture quality control method thereof are provided to finely adjust image quality of a displayed image by suppressing mura patterns through frame rate control or dithering. CONSTITUTION: A flat panel display device includes an LCD(Liquid Crystal Display) panel(103), a compensator circuit(105), a data driving circuit(101), a gate driving circuit(102), and a timing controller(104). The LCD panel includes data lines(106) and gate lines(108) which are arranged to cross the data lines. A TFT(Thin Film Transistor) for driving LCD cells(Clc) is formed at the intersections between the data and gate lines. The compensator circuit generates compensated digital video data(Rc,Gc,Bc). The data driving circuit drives the data lines by using the compensated input video data. The gate driving circuit supplies scan pulses to the gate lines. The timing controller controls the data driving circuit and the gate driving circuit. © KIPO 2007 ...

Contrast control for display device

A contrast control device is provided. The device of the invention includes a detecting unit, a judging unit, a backlight control unit, a gain generating unit and a contrast gain processing unit. The detecting unit calculates an average value and detects a maximum value of a current image. The judging unit generates a gain index and a brightness index according to the average value. The backlight control unit generates a backlight control signal according to the brightness index. The gain generating unit generates a first contrast gain value and a soft-clamping gain value according to the gain index, the average value and the maximum value and then selects one from the first contrast gain value and the soft-clamping gain value for output as a second contrast gain value according to an input pixel value of the current image. The contrast gain processing unit generates an output pixel value according to the second contrast gain value and the input pixel value.

Alignment factor for ambient lighting calibration

A method, system, and apparatus that can be used to operate a display device in an energy efficient manner. The energy efficient display device can effectively and efficiently compensate for changes in ambient light incident at a display screen of the display device using an internal ambient light sensor to provide control signals to a backlight driver. Data from the ambient light sensor can be at least partially corrected to correspond more closely to a response of a Lambertian responsive light sensor

Display device and driving method thereof

It is an object of the present invention to provide a display device in which problems such as an increase of power consumption and increase of a load of when light is emitted are reduced by using a method for realizing pseudo impulsive driving by inserting an dark image, and a driving method thereof. A display device which displays a gray scale by dividing one frame period into a plurality of subframe periods, where one frame period is divided into at least a first subframe period and a second subframe period; and when luminance in the first subframe period to display the maximum gray scale is Lmax 1 and luminance in the second subframe period to display the maximum gray scale is Lmax 2 , (1/2) Lmax 2 <Lmax 1 <(9/10) Lmax 2 is satisfied in the one frame period, is provided.

Light source system for a color flat panel display

A system for operating a color flat panel display (FPD) is provided that includes a color FPD, a light source, and a display processing device. The color FPD has an adjustable color depth and is configured to reflect ambient light. The light source transmits light through the bottom surface of the color FPD. The display processing device is coupled to the color FPD and decreases the color depth of the color FPD when the light source is activated and increases the color depth of the color FPD when the light source is turned off.

Liquid crystal display and global dimming control method thereof

A global dimming control method of a liquid crystal display for controlling a luminance of backlight depending on a displayed image includes calculating an average picture level (APL) of the displayed image, calculating the number of pixels of a chromatic region belonging to the displayed image when the APL is equal to or less than a previously determined first threshold value, comparing the number of pixels of the chromatic region with a previously determined second threshold value, calculating a gain value of the chromatic region when the number of pixels of the chromatic region is greater than the second threshold value, and multiplying the gain value by the APL to calculate an adjustment dimming control signal, and controlling the luminance of the backlight using a dimming value obtained based on the adjustment dimming control signal.

Image display apparatus and control method for controlling the same

Disclosed is an image display apparatus comprising pixels each one of which is composed of three subpixels, wherein each pair of the two subpixels is provided with a light source 101; a first polarizing filter 102 which extracts a component of linearly polarized light from a light of the light source; a liquid crystal 103 which rotates a polarization direction of the linearly polarized light; a polarizing filter 104 A which is provided corresponding to one of the subpixels 105 A and which extracts a polarized light component in a horizontal direction; and a polarizing filter 104 B which is provided corresponding to the other of the subpixels 105 B and which extracts a polarized light component in a vertical direction; the image display apparatus further comprising a control unit 200 which controls the output light amount of the light source 101 and an angle of orientation of the liquid crystal 103.

Display device

A display device includes an illuminance sensor for detecting an illuminance in a surrounding environment, an input average luminance detection circuit for detecting an average luminance of input images, a frame insertion control circuit for producing a gray image frame and inserting the produced gray image frame into between an input image frame and its subsequently input image frame input, and an insertion luminance level generation circuit for determining a luminance of the gray image frame according to the illuminance detected by the illuminance sensor and the average luminance of the input images detected by the input average luminance detection circuit.

Reference voltage generating circuit and led driver circuit having the same therein

A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit and a light-emitting diode (LED) driver circuit are provided. A reference voltage generating circuit used for a light-emitting diode (LED) driver circuit includes a voltage measurer configured to sequentially measure feedback voltages of a plurality of LED arrays, the LED arrays being connected to one another in parallel, a quantizer configured to search for one of the plurality of LED arrays having a lowest feedback voltage of the measured feedback voltages, a comparator configured to compare an output of the voltage measurer with a preset comparison voltage to generate a reference voltage, and a timing controller configured to control the comparator to output the generated reference voltage corresponding to the one of the plurality of LED arrays.

Systems and methods for dynamic power management for use with a video display device

Embodiments of the present invention relate to methods and circuits for use with a system including a light emitting element (e.g., a laser diode or light emitting diode) that is driven by a current produced by a current output digital-to-analog converter (DAC), wherein the light emitting element or the DAC is powered by a supply voltage produced by a voltage supply. In accordance with an embodiment, a measure indicative of a voltage at an output of the DAC is obtained, wherein the voltage at the output of the DAC is indicative of a voltage headroom available for the DAC. The measure indicative of the voltage at the output of the DAC is compared to one or more predetermined references, and the supply voltage is controlled based on the comparison(s).

Background brightness compensating method and system for display apparatus

A system and a method of compensating background brightness for a display apparatus are disclosed. The display apparatus has a screen for displaying images, and said method comprises steps of: (a) detecting an intensity of ambient light in the front of the screen; (b) obtaining a representative brightness of an image displayed on the screen; (c) determining a backside spotting reference reflective luminance value according to the ambient light intensity and the image representative brightness; and (d) spotting in the rear of the screen by using a lighting module and thus making a spotting intensity to achieve the reference reflective luminance value. The said method and system can reduce eye fatigue and discomfort of viewers.

Automatic adjustment of display systems based on light at viewer position

Methods, systems, and apparatuses are described for automatic adjustment of display systems based on ambient light intensity. Ambient light intensity of a viewing environment is determined from a location of a display system or from a location separate from the display system. Ambient light information may be collected using light sensor(s) or image sensor(s) of a camera or other imaging capturing device. When a viewer is present, ambient light intensity may be determined from a perspective of the viewer. The determined light intensity information is used to determine a white balance level. A characteristic of the display system is adjusted based on the determined white balance level.

Mitigation of artifacts in pwm illumination imaging

A system and method for reducing pulse width modulation contouring artifacts. Each input intensity value is translated to at least one non-binary bit pattern for display. Many of the input intensity values are translated to at least two alternate non-binary bit patterns. The alternate codes are used to smooth the transition between intensity codes as major bits are turned on. The smoothing occurs by the gradual transition from codes that do not use the major bit to codes that do use the major bit. Typically the alternate codes are selected based on the location of the pixel in a spatial pattern ( 100 ) and the alternate codes are spatially alternated from one pixel ( 102 ) to the next ( 104 ). Other embodiments temporally alternate the codes from one period—typically a frame period—to the next. Still other embodiments alternate the codes both spatially and temporally.

Method and system for remotely calibrating display of image data

A method for remotely calibrating display of image data is provided. Using a processor of the client computer display data are determined. The display data are indicative of a luminance dynamic range of the display and of an ambient lighting environment of the display. The display data are then transmitted to a server computer. Using a processor of the server computer display adjustment data are determined in dependence upon the display data. The display adjustment data are then transmitted to the client computer. Alternatively, image data for displaying on the display are received. Adjusted image data are then determined in dependence upon the received image data and the display adjustment data and transmitted to the client computer.

Multi-mode display device and power-saving method of the same

A power-saving method adapted in a multi-mode display device is provided. The power-saving method comprises the steps as follows. A brightness of an ambient light is detected. When the brightness of the ambient light lies within a transmissive range, the multi-mode display device is operated in a transmissive mode and enables the backlight module of the multi-mode display. When the brightness of the ambient light lies within a transflective range, the multi-mode display device is operated in a transflective mode and the brightness of the backlight module is dynamically adjusted according to a compensation method. When the brightness of the ambient light lies within a reflective range, the multi-mode display device is operated in a reflective mode and turns off the backlight module.

Optical display and control element and method of optically determining a position

An optical display and control element comprises an at least partially transparent display screen, at least one light source for illuminating a rear side of the display screen, and at least one light sensor for detecting a temporal signal of the light scattered on the display screen. The light source is able to produce a time-variable light pattern while illuminating the rear side of the display screen. A control and processing unit is able to evaluate the temporal signal, detected by the light sensor, in combination with the time-variable light pattern and to determine a position of at least one object located on the display screen from this evaluation. The invention further relates to a method of optically determining the position of an object which is located on an at least partially transparent display screen of an optical display and control element.

Display device and image forming apparatus

A display device of an image forming apparatus is provided with a display panel, a backlight unit, a storage portion, and a control portion. The display panel is a transmission type display panel and displays display data. The backlight unit emits light to the back side of the display panel. The storage portion stores a plurality of kinds of display data displayed on the display panel and a plurality of kinds of luminance data set up corresponding to each of the plurality of kinds of display data. The control portion reads out from the storage portion the display data to be displayed on the display panel and the luminance data corresponding to the display data, displays the read display data on the display panel, and performs display control for controlling the luminance of the backlight unit based on the read luminance data.

Reflective display device with auxiliary display

A reflective display device includes a housing, a reflective display unit, an auxiliary display unit, a power supply, a wireless transceiver, a lighting unit, a light sensing unit, a light source control module, an identifying module, and a display control module. The power supply supplies power to the reflective display device and converts ambient light into electrical power and stores the electrical power. The wireless transceiver receives information transmitted from the electronic device. The lighting unit is fixed to the housing and illuminates the reflective display unit. The light sensing unit detects brightness of ambient light. The light source control module turns on/off the lighting unit. The identifying module identifies the type of the information. The display control module selectively controls the information to be displayed on the reflective display or the auxiliary display unit according to the type of the information.

Electronic device and method for adjusting backlight brightness

A device and a method for adjusting backlight brightness employed in a display are provided. The electronic device includes a display unit, a backlight unit, a light sensor, a distance sensor, and a control unit. The backlight unit is configured to emit backlight for the display unit. The light sensor is configured to sense ambient brightness of the electronic device in real time. The distance sensor is configured to sense an object within a predetermined coverage area in real time. The control unit is configured to detect whether the ambient brightness changes, evaluate whether the object is sensed by the distance sensor within the predetermined coverage area when detecting that the ambient brightness is low, and not control the backlight unit to adjust the backlight brightness of the display unit when the object is sensed within the predetermined coverage area.

Light unit and driving method thereof

A light unit includes: an integrated power (“IP”) board which receives power supply and converts the power supply into a high voltage and a supply voltage; a lamp; and a terminal board (“T board”) which receives the high voltage from the IP board to turn on the lamp, receives the supply voltage from the IP board to transfer the supply voltage to the IP board, in which the IP board transfers the high voltage to the T board after the IP board receives the supply voltage from the T board.

Drive apparatus for display medium, computer readable medium storing drive program, display apparatus, and drive method for display medium

A drive apparatus that drives a display medium that includes display and rear substrates, a disperse medium, and a particle group, includes a voltage application unit that applies first and second voltages to the display medium, in which, when a color of the particle group is displayed, the voltage application unit applies the first voltage higher than or equal to a threshold voltage necessary for the particle group to be detached from the display substrate or the rear substrate to a pixel where the particle group is moved between the substrates and applies the second voltage having a same polarity as the first voltage and is lower than the threshold voltage to the pixel where the particle group is moved between the substrates and to a pixel adjacent to the pixel where the particle group is moved between the substrates and the particle group of which is not moved.

PROJECTION DEVICE, WHICH COMPRISES A PROJECTOR, A PROJECTION SURFACE, AND A DATA PROCESSING SYSTEM, AND METHOD FOR OPERATING SAID PROJECTION DEVICE

A projection device and to a method for operating the device. The projection device includes a projector, a projection surface, and a data processing system, wherein information about the image on the projection surface is transferred to the data processing system and wherein the data processing system controls the projector. The projection surface is designed as a planar optical waveguide, in which photoluminescent particles are integrated and on which a plurality of photoelectric sensors are attached, which are able to couple light out of the waveguide mode and to thereby generate an electrical signal, the strength of which depends on the intensity of the light coupled out at the photodetector. 1. A projection device comprising a projector , a projection surface and a data processing system , wherein information about the light distribution on the projection surface is passed to the data processing system and wherein the data processing system controls the projector , wherein the projection surface is embodied as a planar optical waveguide in which photoluminescent particles are integrated and to which a plurality of photoelectric sensors are fitted , which are able to couple out light from the waveguide mode and thereby to generate an electrical signal , the strength of which is dependent on the intensity of the light coupled out at the photodetector.2. The projection device as claimed in claim 1 , wherein the projection surface is formed as a flexible film composed of a transparent polymer having a layer thickness of 20 to 500 μm.3. The projection device as claimed in claim 1 , wherein photodetectors are arranged at surface regions situated at a distance from all edges.4. The projection device as claimed in claim 1 , wherein photodetectors are arranged in each case in a recess of the projection surface claim 1 , which is formed by a deforming method such as thermoforming or embossing in the otherwise planar film.5. The projection device as claimed in claim 1 , ...

DISPLAY DEVICE

Back cabinet () has space () which can accommodate backlight unit () and a circuit board therein, a backlight supporter which supports backlight unit () is provided on an inner wall surface forming space (), liquid crystal display panel () is disposed in an opening of space () of back cabinet (), and panel driving circuit board () for electrically connecting liquid crystal display panel () to a signal processing circuit board is exposed to outside from a side wall of back cabinet (). 1. A display device comprising:a casing having a back cabinet;a flat display panel installed in the casing;a backlight unit disposed on a back side of the flat display panel;a signal processing circuit board controlling an image signal output to the flat display panel; anda panel driving circuit board electrically connecting the signal processing circuit board to the flat display panel and controlling driving of the panel,wherein the back cabinet has a space which can accommodate the backlight unit and the circuit board therein, and a backlight supporter which supports the backlight unit on an inner wall surface forming the space, andwherein the flat display panel is disposed in an opening of the space of the back cabinet, and a connector between the flat display panel and the panel driving circuit board is exposed to outside from a side wall of the back cabinet.2. The display device according to claim 1 , wherein the connector between the flat display panel and the panel driving circuit board and a connection portion between the signal processing circuit board and the panel driving circuit board are exposed to the outside from the side wall of the back cabinet. The instant application relates to a flat display device such as a liquid crystal display device used for a television receiver or a monitor device.A liquid crystal display device is a flat display device, and demands thereof have increased for general homes and business use.Generally, the liquid crystal display device includes ...

DISPLAY DEVICE AND DRIVING METHOD THEREOF

It is an object of the present invention to provide a display device in which problems such as an increase of power consumption and increase of a load of when light is emitted are reduced by using a method for realizing pseudo impulsive driving by inserting an dark image, and a driving method thereof. A display device which displays a gray scale by dividing one frame period into a plurality of subframe periods, where one frame period is divided into at least a first subframe period and a second subframe period; and when luminance in the first subframe period to display the maximum gray scale is Lmax1 and luminance in the second subframe period to display the maximum gray scale is Lmax2, (½) Lmax2 Подробнее

DISPLAY PANEL AND DISPLAY DEVICE

The present invention is to provide a display panel and a display device in each of which the white luminance and/or the color reproduction range are/is sufficiently improved by changing the sub-pixel area for each color, so that unevenness of luminance is sufficiently suppressed, and the influence of line width variation on the aperture ratio is reduced. The display panel according to the present invention includes a pair of substrates, a display element sandwiched between the pair of substrates, and pixels each formed by sub-pixels of four or more colors, and is featured in that one of the pair of substrates includes scanning lines, signal lines, and sub-pixel electrodes, and in that the area of at least one of the sub-pixels of four or more colors is different from the area of the other sub-pixels, and the sub-pixel having the larger area overlaps with a plurality of the signal lines in plan view of the main surface of the display panel. 1. A display panel including a pair of substrates , a display element sandwiched between the pair of substrates , and pixels each formed by sub-pixels of four or more colors , wherein:one of the pair of substrates includes scanning lines, signal lines, and sub-pixel electrodes; andan area of at least one of the sub-pixels of four or more colors is different from the area of the other sub-pixels, and the sub-pixel having the larger area overlaps with a plurality of the signal lines in plan view of the main surface of the display panel.2. The display panel according to claim 1 , wherein the signal lines include a signal line used for driving the sub-pixel having the smaller area.3. The display panel according to claim 1 , wherein claim 1 , in plan view of the main surface of the display panel claim 1 , the main line of the signal lines does not overlap with the sub-pixel having the smaller area.4. The display panel according to claim 1 , wherein:the one of the pair of substrates includes switching elements and storage capacitance ...

DISPLAY DEVICE AND CONTROL METHOD OF THE SAME

Provided is a display device and a control method of the same which suppress the occurrence of color separation. The display device includes: a light source of plural kinds of colors; a plurality of elements which are provided to a plurality of pixels respectively, and change over transmission/non-transmission of light emitted from the light source; and a control part which expresses gray levels of the respective pixels by color sequential driving in which the presence/non-presence of lighting of the light source and the transmission/non-transmission of light by the elements are sequentially controlled. The control part fetches image data amounting to 1 screen and performs a display based on the image data for every image data use period, and performs a display of an image amounting to 1 screen for every frame display period. The frame display period differs from the image data use period in length. 1. A display device comprising:a light source of plural kinds of colors;a plurality of elements which are provided to a plurality of pixels respectively, and change over transmission/non-transmission of light emitted from the light source; anda control part which expresses gray levels of the respective pixels by color sequential driving in which the presence/non-presence of lighting of the light source and the transmission/non-transmission of light by the elements are sequentially controlled, wherein:the control part fetches image data amounting to 1 screen and performs a display based on the image data for every image data use period, and performs a display of an image amounting to 1 screen for every frame display period; andthe frame display period differs from the image data use period in length.2. The display device according to claim 1 , wherein the control part does not use a part of the image data during the image data use period when the frame display period is longer than the image data use period claim 1 , and the control part uses a part of the image data ...

System, methods, and devices, for inaudible enhanced pwm dimming

Systems and methods for inaudible enhanced pulse width modulation (PWM) backlight dimming are provided. By way of example, an electronic display backlight system according to the present disclosure may include a backlight element and backlight driver circuitry. The backlight driver circuitry may drive the backlight element at various brightness levels using at least two individual duty cycles that occur immediately after one another. The backlight driver circuitry may vary the individual duty cycles such that none will ever reach 100% unless all are 100%, thereby preventing the occurrence of audible noise that might otherwise arise if an “on” PWM period from one individual duty cycle continued into the next.

White point uniformity techniques for displays

The present disclosure generally relates to systems and techniques for calibrating displays to improve the white point uniformity between similar type devices. In one embodiment, a backlight includes multiple strings of LEDs, where each string is driven by a separate driver, or driver channel. Each string may be separately tested at a base current to determine its emitted chromaticity, and values indicative of the emitted chromaticities may be stored within the backlight as calibration values. The calibration values may then be used to determine the driving strength for each string that allows the display to produce the target white point when the light from the strings is mixed. Further, in certain embodiments, adjustments also may be made to the LCD panel based on the emitted chromaticities at the base current.

Display Device, Method for Driving Display Device, and Electronic Apparatus

A display device includes an illumination unit that delivers a first light, a second light and a third light. The display also includes a driving circuit that supplies a pixel with a first data signal for displaying a first image by illuminating the first light, the driving circuit supplying the pixel with a second data signal for displaying a second image by illuminating the second light, the driving circuit supplying the pixel with a third data signal for displaying a third image by illuminating the third light.

Image display device and image display method

When first and second region-processing sections ( 510, 520 ) calculate in parallel backlight luminances required for an input image halved by a regional image division section ( 505 ) included in an area-active drive processing section ( 5 ) of a liquid crystal display device, LED data (D b1 , D b2 ) are exchanged for each other, allowing reference to backlight luminances not calculated for one region but calculated for the other region. As a result, when an area is illuminated by surrounding backlight sources, the actual display luminance can be calculated correctly. Thus, pixel display can be provided with correct display tones across the entire screen, thereby preventing a reduction in display quality.

PORTABLE TERMINAL CAPABLE OF CONTROLLING BACKLIGHT AND METHOD FOR CONTROLLING BACKLIGHT THEREOF

Disclosed is a method for controlling a backlight of a portable terminal, which includes from a memory previously stored backlight brightness values that correspond to a backlight steps, retrieving a stored brightness value corresponding to one of a plurality of brightness steps selected by a user, regulating the brightness of the portable terminal according to the retrieved brightness value, and displaying the currently selected brightness step on the display unit, wherein the brightness steps correspond to incremental levels of brightness. 1. A portable terminal brightness controlling method , comprising:from a memory previously stored backlight brightness values that correspond to a backlight steps, retrieving a stored brightness value corresponding to one of a plurality of brightness steps selected by a user;regulating the brightness of the portable terminal according to the retrieved brightness value; anddisplaying the currently selected brightness step on the display unit, wherein the brightness steps correspond to incremental levels of brightness.2. A method according to claim 1 , wherein the retrieving step comprises:converting an operation mode of the portable terminal to a brightness regulation mode in response to a brightness regulation request of a user;displaying a brightness step selection screen for selecting a brightness step if the operation mode of the portable terminal is converted to the brightness regulation mode; andretrieving a brightness value corresponding to the brightness step selected.3. A method according to claim 1 , wherein information to associate predetermined inputs with brightness steps having preset brightness values respectively is stored in a memory.4. A method according to claim 3 , wherein a brightness value of a brightness step corresponding to a predetermined input is retrieved in the retrieving step if one of the predetermined inputs is input in the brightness regulation mode.5. A method according to claim 4 , wherein the ...

SYSTEMS AND METHODS FOR OPERATING PIXELS IN A DISPLAY TO MITIGATE IMAGE FLICKER

Circuits for programming a circuit with decreased programming time are provided. Such circuits include a storage device such as a capacitor for storing display information and for ensuring a driving device such as a driving transistor drives a light emitting device according to the display information. The present disclosure provides driving schemes for decreasing flickering perceived while displaying video content by introducing idle phases in between in emission phases to increase the effective refresh rate of a display. Driving schemes are also disclosed for reducing the effects of cross-talk by ensuring that programming information is refreshed in a display array that utilizes a driver connected to multiple data lines via a multiplexer. 1. A method of operating a display , the display having a plurality of pixel circuits for driving light emitting devices , the method comprising:programming a first plurality of pixel circuits with display information;driving the first plurality of pixel circuits to emit light according to the programmed display information during a first emission interval;ceasing to drive the first plurality of pixel circuits during an idle interval; andprior to reprogramming the first plurality of pixel circuits, and following the ceasing, driving the first plurality of pixel circuits to emit light according to the programmed display information during a second emission interval.2. The method according to claim 1 , wherein the programming the first plurality of pixel circuits includes applying a plurality of programming voltages on a plurality of data lines connected to the first plurality of pixel circuits claim 1 , and the driving includes setting the plurality of data lines to a reference voltage such that storage capacitors in each of the first plurality of pixel circuits are referenced to the reference voltage during the emission intervals.3. The method according to claim 1 , further comprising programming a second plurality of pixel ...

DISPLAYING IMAGES ON LOCAL-DIMMING DISPLAYS

Displays, display components, image and video processing apparatus and related methods are described. A method for driving local-dimming displays comprises generating control values for driving pixels of a spatial light modulator from one image data component and generating control values for driving backlight elements from a second image data component. The first and second image data components may respectively comprise a tone map and a ratio image. Control values for the spatial light modulator and/or backlight may be obtained using cost effective hardware. 1. Apparatus for driving a local-dimming display comprising a backlight and a spatial light modulator , the backlight comprising a plurality of individually-controllable elements , the apparatus comprising:a decoder configured to extract first and second image data components that can be combined to yield a higher-dynamic-range version of an image, the first image data component comprising a lower-dynamic range version of the image;a first system configured to generate first driving signals for the spatial light modulator based on the first image data component; anda second system configured to generate second driving signals for the backlight based on the second image data component or on a combination of the first and second image components.2. Apparatus according to wherein the second system comprises a downsampler configured to downsample the second image data component.3. Apparatus according to or wherein the second system comprises a driving value calculator configured to normalize the second image data component.4. Apparatus according to wherein the driving value calculator is configured to normalize the second image data component by dividing values of the second image data by a representative value.5. Apparatus according to wherein the representative value comprises a maximum value claim 4 , mean value claim 4 , average value claim 4 , median value claim 4 , or percentile value.6. Apparatus according ...

DISPLAY DEVICE, METHOD FOR CONTROLLING DISPLAY DEVICE, PROGRAM, AND RECORDING MEDIUM

A display device includes a display panel having pixels each constituted by red, green, blue, and white subpixels and a backlight, further including: a grayscale ratio calculating section acquiring RGB data and calculating a ratio of the lowest to the highest of RGB grayscales in each pixel; a detection section detecting, from the RGB data, a ratio of the number of target pixels in one frame; a conversion coefficient calculating section acquiring, by using the detected ratio, a conversion coefficient for converting the RGB data into RGBW data; a RGB data conversion section converting the RGB data into the RGBW data per pixel by using the conversion coefficient; and a display control section generating, from the RGBW data, an image to be displayed on the display panel and causing the display panel to display the image. 1. A display device , comprising a display panel having pixels each constituted by subpixels of red (R) , green (G) , blue (B) , and white (W) , and a backlight for emitting light to the display panel ,the display device further comprising:calculating means for acquiring RGB data and calculating a ratio of a lowest grayscale to a highest grayscale of RGB grayscales in each pixel which are indicated by the acquired RGB data;detection means for determining that a pixel whose ratio calculated by the calculating means is not more than a predetermined value is a target pixel to be detected, and detecting, from the RGB data, a ratio of the number of the target pixel in one frame;conversion coefficient acquiring means for acquiring, by using the ratio detected by the detection means, a conversion coefficient for converting the RGB data into RGBW data;conversion means for converting the RGB data into the RGBW data with respect to each pixel by using the conversion coefficient; anddisplay means for generating, from the RGBW data to which the RGB data has been converted by the conversion means, an image to be displayed on the display panel, and causing the ...

SCREEN DISPLAY DEVICE, SCREEN DISPLAY CONTROL METHOD, SCREEN DISPLAY CONTROL PROGRAM, AND INFORMATION TERMINAL DEVICE

A screen display device includes a screen display unit having a first screen, and a screen display unit having a second screen; a record analysis unit that generates history information based on user sight line information showing a user's sight line; a switchover control information storage unit that stores switchover control information including a sight line movement condition and a time condition, and control information; and a screen display control unit that refers to the switchover control information storage unit. The screen display control unit compares the history information with the sight line movement condition and the time condition. The screen display control unit performs control of switching display content and energization control content of each of the first and second screens based on the control information in a case of the history information satisfying the sight line movement condition and the time condition. 1. A screen display device comprising:a plurality of screen display units that include a screen display unit having a first screen, and a screen display unit having a second screen;a record analysis unit that generates history information based on user sight line information showing a user's sight line, the history information showing movement of the user's sight line between the first and second screens and dwell time of the user's sight line for each of the first and second screens;a switchover control information storage unit that stores switchover control information including a sight line movement condition and a time condition, and control information, the sight line movement condition and the time condition corresponding to sight line movement and dwell time and serving as conditions for screen control, the control information showing control content of the first and second screens; anda screen display control unit that refers to the switchover control information storage unit, the screen display control unit comparing the history ...

Systems and Methods for Accurately Representing High Contrast Imagery on High Dynamic Range Display Systems

A dual-panel display system is provided that comprises control modules and algorithms to select codeword pairs (CWs) to drive a first image-generating panel and a second contrast-improving panel. The first codewords is selected by considering some characteristics of the input image data (e.g., peak luminance) and to improve some image rendering metric (e.g., reduced parallax, reduced contouring, improved level precision). The first codeword may be selected to be the minimum first codeword within a set of codeword pairs that preserves the peak luminance required by the input image data. Also, the first codeword may be selected to minimize the number of Just Noticeable Difference (JND) steps in the final image to be rendered. The second codeword may be selected to similarly improve image quality according to a given quality metric. 1. A dual-panel display system comprising:a backlight;a first image-generating panel;a second contrast-improving panel;a control module for selecting a codeword (CW) pair for driving said first image-generating panel and said second contrast-improving panel respectively according to input image data; andfurther wherein said control module is capable of selecting a CW pair to improve final image rendering presented to a viewer.2. The display according to claim 1 , wherein the first image-generating panel comprises a monochrome LCD panel.3. The display according to claim 2 , wherein the second contrast-improving panel comprises a chromatic LCD panel.4. The display according to claim 3 , wherein said control module is capable of selecting a first CW for driving said first image-generating panel from among a set of possible CW pairs that satisfy a desired luminance setting according to input image data.5. The display according to claim 4 , wherein said first CW for driving said first image-generating panel is substantially the minimum CW value among the set of possible CW pairs that satisfy a desired luminance setting according to input image ...

LIQUID CRYSTAL DISPLAY DEVICE

Provided is a liquid crystal display device wherein it is possible to specifically prevent the pseudo contouring of an area in which an image having a large motion vector is displayed, such as a telop area. A telop area (R) (an example of a component image area) in which the motion vector is set in advance and which has a magnitude greater than or equal to a predetermined magnitude is detected. The intermittent lighting timing of an illumination portion is controlled in a manner such that the turn-off period having a predetermined length is set between the point in which the detected telop area (R) writes a video signal to a liquid crystal element and the point in which the liquid crystal element responds. 14-. (canceled)5. A liquid crystal display device that has a backlight device including two illuminating portions for individually illuminating each of partial areas which is obtained by dividing a display area of a liquid crystal panel with a plurality of liquid crystal elements into two parts from behind , a backlight control portion sequentially intermittently lighting each of the illuminating portions in conjunction with writing of a video signal to the liquid crystal elements corresponding to the respective partial areas in the liquid crystal panel , and a motion vector detecting portion detecting a motion vector based on the video signal , comprising:an elemental image area detecting portion for detecting an elemental image area where the motion vector detected by the motion vector detecting portion equals to or greater than predetermined magnitude set in advance from the partial areas for each of the partial areas; andan intermittent lighting timing control portion for controlling timing of intermittent lighting of the illuminating portion by the backlight control portion such that, if the elemental image area detecting portion detects the elemental image area only in one of the partial areas, a turn-off period is provided for a predetermined time in the ...

INFORMATION PROCESSING APPARATUS AND CONTROL METHOD

According to one embodiment, an information processing apparatus includes a displaying unit including a display panel, a drive circuit for driving a white pixel, an illumination unit, and an inverter supplying a boosted driving power to the illumination unit, a power supply which supplies the inverter the driving power corresponding to a second control signal, a selecting unit which selects one item of setting data from a setting table including a plurality of items of setting data including luminance setting of the white pixel and luminance setting of the illumination unit, a first control signal outputting unit which supplies to the drive circuit the first control signal corresponding to luminance of the white pixel included in the selected item, and a second control signal outputting unit which supplies to the power supply the second control signal corresponding to luminance of the illumination unit included in the selected item. 19-. (canceled)10. An information processing apparatus comprising: a liquid crystal display configured to display a red pixel, a green pixel, a blue pixel, and a white pixel, and', 'an illumination unit configured to illuminate the liquid crystal display,, 'a display unit comprising'}a selecting unit configured to select one setting data item from a setting table including setting data items, the setting data items comprising a first setting item data and a second setting data item, the first setting data item comprising (i) a first luminance setting of the white pixel to be in a ON state and (ii) a second luminance setting of the illumination unit, the second setting data item comprising (iii) a third luminance setting of the white pixel to be in a OFF state and (iiii) a fourth luminance setting of the illumination unit, wherein luminance of the illumination unit corresponding to the second luminance setting is lower than luminance of the illumination unit corresponding to the fourth luminance setting; anda controller configured to ...

DISPLAY DEVICE

A photosensor-equipped display device is provided having a combination of visible and non-visible light sources where a voltage drop is minimized when the non-visible light source is turned on. The display device includes: an active matrix substrate; photosensors () provided in a pixel region () of the active matrix substrate; white LEDs () configured to cause an image to be displayed in the pixel region (); infrared LEDs () configured to emit light to be reflected and sensed by the photosensors; and a light source control circuit () configured to control on and off of the white LEDs () and the infrared LEDs (). The light source control circuit () reduces an amount of drive current supplied to the white LEDs () while the infrared LEDs () are on to below an amount of drive current supplied to the white LEDs () when the infrared LEDs () are off. 1. A display device comprising:an active matrix substrate;photosensors provided in a pixel region of the active matrix substrate;a visible light source configured to cause an image to be displayed in the pixel region;a non-visible light source configured to emit light to be reflected and sensed by the photosensors; anda light source control circuit configured to control on and off of the visible light source and the non-visible light source,wherein the light source control circuit reduces an amount of drive current supplied to the visible light source while the non-visible light source is on to below an amount of drive current supplied to the visible light source when the non-visible light source is off.2. The display device according to claim 1 , wherein a sum of an amount of power for the non-visible light source and an amount of power for the visible light source supplied when the non-visible light source is on is equal to a sum of an amount of power for the non-visible light source and an amount of power for the visible light source supplied when the non-visible light source is off.3. The display device according to claim ...

SYSTEM AND METHOD FOR OPTIMIZING VISIBILITY, AND MOBILE DEVICE OPERATING WITH OPTIMIZED VISIBILITY

A visibility optimization system and method is provided. The visibility optimizing system includes a display mobile device; and a measurement device. The display mobile device displays an image and adjusts a brightness level of the displayed image according to a control from the measurement device. The measurement device photographs the displayed image, compares the photographed image with reference data, and creates a visibility table based on a comparison result of the photographed image with the reference data. 1. A visibility optimizing system , comprising:a display mobile device; anda measurement device,wherein the display mobile device displays an image and adjusts a brightness level of the displayed image according to a control from the measurement device, andwherein the measurement device photographs the displayed image, compares the photographed image with reference data, and creates a visibility table based on a comparison result of the photographed image with the reference data.2. The system of claim 1 , wherein the measurement device creates brightness adjustment information indicating a brightness level to be adjusted according to an external luminance of the display mobile device claim 1 , based on brightness levels with a comparison characteristic value of the visibility table.3. The system of claim 1 , wherein the measurement device collects electric power consumption information according to the brightness levels of the display mobile device and creates brightness adjustment information that includes at least one brightness level adjustment value based on the collected electric power consumption information and the visibility table.4. The system of claim 3 , wherein the brightness adjustment information that comprises at least one of:a brightness adjusting value of brightness levels, where a weight of electric power saving is relatively greater than a weight of visibility; anda brightness adjusting value of brightness levels, where the weight of the ...

Light source device, display device, and electronic apparatus

Disclosed is a display device including a display section configured to display an image and a light source device for emitting light for displaying the image to the display section. The light source device includes a first light source for applying first illumination light, and a light guide plate having a plurality of scattering areas, the light guide plate emitting the first illumination light applied from a direction of a side of the light guide plate to an outside by scattering the first illumination light in the plurality of scattering areas, and a light scattering characteristic is added to the scattering areas by forming a plurality of depression and projection shapes in surfaces of the scattering areas or dispersing a light scattering material in the scattering areas, and density of the depression and projection shapes or concentration of the light scattering material in the scattering areas changes according to position.

Display apparatus light emission control method and display unit

A light emission control method controls a display that includes a display portion, a scanning portion, and a driving portion. The display portion includes light emitting elements in a matrix form. The scanning portion is connected to common lines. Each common line is connected to the anode terminals of corresponding elements in corresponding row so that the common lines are scanned. The driving portion is connected to driving lines. Each driving line is connected to the cathodes terminals of corresponding elements in a corresponding column. The driving portion can drive selected elements when the common line corresponding to the selected elements is scanned. The method displays an image in each cycle including frames. All common lines are scanned in each frame. A part of the rows in one frame in one cycle is/are driven. Other part is driven in a frame after the one frame in the one cycle.

Display driver

In a display driver, a first backlight control unit using a histogram and a second backlight control unit using an optical sensor can be used in combination. The display driver includes a PWM generating unit setting a control signal value consisting of a product of a luminance rate of X % and a luminance rate of Y % as a luminance rate of a control signal for controlling a backlight with respect to maximum backlight luminance when a luminance rate of a control signal obtained by first backlight control with respect to the maximum backlight luminance is X % and a luminance rate of a control signal obtained by second backlight control with respect to the maximum backlight luminance is Y %.

IMAGE DISPLAY APPARATUS, DRIVER APPARATUS, AND BACKLIGHT UNIT

An image display apparatus comprising: a driver apparatus; and a total of N device groups of a first group to an N-th group (2≦N) each of which includes one or a plurality of light emitting devices, the image display apparatus uses the driver apparatus to make each of the device groups emit light preventing light emission capable periods from overlapping one another and displays an image by using the obtained light as backlight; wherein the driver apparatus includes: a power output circuit that outputs light emission power used for the light emission of the light emitting device; and a switch mechanism that switches, in accordance with arrival of the light emission capable period of a device group K (1≦K≦N), an output destination of the light emission power output from the power output circuit to the device group K. 1. An image display apparatus comprising:a driver apparatus; anda total of N device groups of a first group to an N-th group (2≦N) each of which includes one or a plurality of light emitting devices,the image display apparatus uses the driver apparatus to make each of the device groups emit light preventing light emission capable periods from overlapping one another and displays an image by using the obtained light as backlight; wherein a power output circuit that outputs light emission power used for the light emission of the light emitting device; and', 'a switch mechanism that switches, in accordance with arrival of the light emission capable period of a device group K (1≦K≦N), an output destination of the light emission power output from the power output circuit to the device group K., 'the driver apparatus includes2. The image display apparatus according to claim 1 , whereinthe power output circuit performs PWM control at a set duty ratio to adjust the light emission power.3. The image display apparatus according to claim 2 , whereinthe power output circuit sets the duty ratio for each of the device groups, and performs the PWM control at the duty ...

SYSTEM AND METHOD FOR TIMING ADJUSTMENT OF A BACKLIGHT MODULE

Examples of the present invention disclose system and method timing adjustment of a backlight module for a display. According to one example, a temperature of the display is monitored and a response time associated with the display is determined based on the temperature. Furthermore, a power-on timing and/or a power-off timing of the backlight module is adjusted based on the determined response time and the monitored temperature. 1. A system comprising:an electronic visual display including a response time and a backlight module for presenting an image to a user;at least one sensor coupled to the display and configured to monitor a temperature associated with the display;wherein a power-on timing and/or a power-off timing of the backlight module is adjusted based on a determined response time and a monitored temperature associated with the display.2. The system of claim 1 , further comprising:a microcontroller configured to adjust the power-on timing and/or power-off timing of the backlight module to be faster than a current timing when the response time is determined to be accelerated.3. The system of claim 2 , wherein if the temperature associated with the display is above a predetermined value claim 2 , then the response time of the display is determined to be accelerated so as to cause the microcontroller to adjust the power-on timing and/or power-off timing of the backlight module.4. The system of claim 2 , further comprising:a first thermal sensor positioned in proximity to an upper area of the display and configured to measure the temperature of the upper area, anda second thermal sensor positioned in proximity to a lower area of the display and configured to measure the temperature of the lower area.5. The system of claim 3 , wherein if the measured temperature from the first thermal sensor is higher than a predetermined value claim 3 , then the power-off timing of the backlight module is adjusted to be faster than the current timing; andwherein if the ...

DISPLAY APPARATUS, METHOD OF DRIVING A DISPLAY, AND ELECTRONIC DEVICE

In a display apparatus including a switching transistor, a correction voltage for eliminating an effect of a variation in a characteristic of a driving transistor is stored in a storage capacitor. The switching transistor is disposed between one current terminal of the driving transistor and a light emitting element. The switching transistor turns off during the non-light emission period thereby to electrically disconnect the light emitting element from the one current terminal of the driving transistor thereby preventing a leakage current from flowing through the light emitting element during the period in which the correction unit operates, and thus preventing the correction voltage from having an error due to the leakage current. 1. A display apparatus comprising:a pixel array; anda driving unit adapted to drive the pixel array,each pixel including at least a sampling transistor, a driving transistor, a light emitting element, a first storage capacitor, and a second storage capacitor,the driving unit being configured to output a control signal to turn on the sampling transistor, and output an image signal to write the image signal in the first storage capacitor via the turned-on sampling transistor,the driving transistor being configured to supply a driving current, depending on a signal voltage of the written image signal, to the light emitting element during a predetermined light emission period,each pixel including a first switching transistor and a second switching transistor, the first switching transistor being disposed between a voltage line and the driving transistor, the second switching transistor being disposed between the driving transistor and the light emitting element, the second switching transistor being adapted to turn off during a non-light emission period.2. The display apparatus according to claim 1 , whereina gate of the driving transistor is connected to a first reference potential, and a source of the driving transistor is connected to a ...

Optimizing Light Output Profile for Dual-Modulation Display Performance

Techniques for optimizing light output profiles in display systems are described. A light output profile is defined in relation to a plurality of sample locations on an illuminated surface. Point spread functions that satisfy illumination performance values specified in the light output profile in aggregate are computed or derived. A design process that adds or removes optical components to a display light assembly derives an optimal design of a light illumination layer for display systems. Relationships and parameter values determined in the design process may be configured into display systems along with the optical components for the purpose of generating optimized light output profiles in the display systems. 1. A method , comprising:generating a spatial distribution of a plurality of sample locations on an illuminated surface;specifying a light output profile in relation to the plurality of sample locations;determining a plurality of point spread functions that generate the light output profile in relation to the plurality of sample locations; andidentifying a plurality of optical components to generate the plurality of point spread functions.2. The method of claim 1 , wherein the plurality of sample locations comprises an even distribution over the illuminated area.3. The method of claim 1 , wherein the plurality of sample locations comprises an uneven distribution over the illuminated area.4. The method of claim 1 , wherein the plurality of sample locations comprises sample locations densely populated in one or more portions of the illuminated area.5. The method of claim 1 , wherein at least one sample location in the plurality of sample locations comprises one or more of circular shapes claim 1 , triangular shapes claim 1 , quadrilateral shapes claim 1 , pentagonal shapes claim 1 , hexagonal shapes claim 1 , a combination of different component shapes claim 1 , and other geometric shapes.6. The method of claim 1 , wherein the illuminated area comprises one ...

MULTIPLE RATE PROJECTOR

A multiple rate projector comprises at least three different color light sources each configured to emit a different color of light, respectively. A color control module is coupled to the at least three different color light sources, and is configured to switch the at least three different color light sources on, respectively, to allow turn-on times of two of the at least three different color light sources to be overlapped or not overlapped. Overlapped turn-on times can be overlapped by a half cycle, or longer or shorter than a half cycle, of the on cycle of each of the respective different color light sources. A two-dimension reflector reflects light from the different color light sources to a projection location (e.g., on a projection screen). 1. A multiple rate projector comprises:at least three different color light sources each configured to emit a different color of light, respectively;a color control module coupled to said at least three different color light sources, wherein said color control module is configured to switch said at least three different color light sources, respectively, to allow turn-on times of two of said at least three different color light sources to overlap or to not overlap; anda two-dimension reflector configured to reflect light emitted from said at least three different color light sources to a predetermined projection location.2. The multiple rate projector of claim 1 , further comprising a light-guiding device configured to allow said at least three different color light sources to be located on three sides of said light-guiding device.3. The multiple rate projector of claim 2 , wherein said light-guiding device is selected from the group consisting of: X cube claim 2 , X plate claim 2 , and prism.4. The multiple rate projector of claim 1 , wherein said at least three different color light sources comprise a laser.5. The multiple rate projector of claim 1 , wherein said at least three different color light sources comprise an ...

METHODS AND APPARATUS FOR INTERPOLATING COLORS

This disclosure provides methods, apparatus, and computer programs encoded on computer storage media for displaying a target color on an electronic display having display devices capable of displaying a set of native colors. In one aspect, the method includes identifying a plurality of weights including at least a first weight and one or more other weights, selecting a first color from the set of native colors that is closest to the target color and assigning it to the first weight, determining an error between the first color and the target color, recursively assigning a subsequent color from the set of native colors to the one or more other weights. Each subsequent color is selected based on the target color and an error normalized by previously assigned weights. The method also displays each assigned color according to its weight on the electronic display. 1. A method of displaying a target color on an electronic display having display devices capable of displaying a set of native colors , the method comprising:identifying a plurality of weights including at least a first weight and one or more other weights;selecting a first color from the set of native colors that is closest to the target color and assigning it to the first weight;determining an error between the first color and the target color;recursively assigning a subsequent color from the set of native colors to the one or more other weights, wherein each subsequent color is selected based on the target color and an error normalized by previously assigned weights; anddisplaying each assigned color according to its weight on the electronic display.2. The method as recited in claim 1 , wherein the display devices comprise analog IMODs.5. The method as recited in claim 1 , wherein each of the plurality of weights corresponds to a temporal weighting.6. The method as recited in claim 1 , wherein each of the plurality of weights corresponds to a spatial weighting.7. The method as recited in claim 1 , wherein ...

DISPLAY DIMMING TO SAVE MOBILE DEVICE POWER DURING WEBPAGE, WEB CONTENT, AND DEVICE APPLICATION LOADING

Systems, methods, and apparatus are herein disclosed for controlling a display brightness based on user action or user interest in the display. In particular, the display brightness can be dimmed upon identification of a first marker indicative of a user action such as a request for a webpage. The brightness of the display can be increased or returned to its original state upon identification of a second marker indicative of completion of a user equipment activity triggered by the user action. In some embodiments, another brightness state between these two can be used as an intermediary and is triggered when a third marker, indicative of a progression of the user equipment activity, is identified. 1. A method of operating a user equipment comprising:operating the display brightness of the user equipment at high, or enabling traditional display brightness control algorithms to control the display brightness;monitoring for a first marker indicating a start of an action by the user equipment;setting a display brightness of the user equipment to low when the first marker is identified;monitoring for a second marker indicating a completion of the action; andsetting the display brightness of the user equipment to high, or enabling traditional display brightness control algorithms to control the display brightness, when the second marker is identified.2. The method of claim 1 , further comprising monitoring for a third marker indicating a progression of the action claim 1 , and setting the display brightness to a brightness between high and low when the third marker is identified.3. The method of claim 1 , wherein the action by the user equipment is triggered by a user input.4. The method of claim 3 , wherein the first marker indicates a start of scrolling of content on the display.5. The method of claim 3 , wherein the first marker indicates a start of retrieval of web content.6. The method of claim 1 , further comprising determining if a power saving algorithm is enabled ...

BACKLIGHT UNIT AND DISPLAY APPARATUS HAVING THE SAME

An exemplary embodiment of the present invention discloses a backlight unit having a plurality of light-emitting blocks and a light source driving section. The plurality of light-emitting blocks is arranged in a matrix shape along first and second directions different from each other. Each of the light-emitting blocks includes a light source unit having at least one light-emitting chip to emit light, and a light guiding unit to guide the light. The light source driving section controls the light source unit of the light-emitting blocks to drive the light source unit. 1. A backlight unit , comprising:a plurality of light-emitting blocks each comprising a light source unit, wherein each light source unit comprises a light-emitting chip to emit light and a light guiding unit to guide the light; anda light source driving section to separately control the light source unit of each of the light-emitting blocks and to separately drive the light source unit.2. The backlight unit of claim 1 , wherein the light guiding unit of each of the light-emitting blocks comprises:a light guiding body portion adjacent to the light source unit, the light guiding body portion to guide the light emitted by the light source unit; andan upper extending portion extended from an upper portion of a first side surface of the light guiding body portion, the upper extending portion being disposed over the light source unit.3. The backlight unit of claim 2 , wherein the light guiding unit further comprises a lower extending portion extended from a lower portion of a second side surface of the light guiding body portion claim 2 , the second side surface being opposite to the first side surface claim 2 , such that the lower extending portion is disposed under an upper extending portion of a light guiding unit of an adjacent light-emitting block.4. The backlight unit of claim 2 , wherein the light guiding body portion comprises a decreasing thickness along a direction from the first side surface to ...

Display apparatus and method of driving the same

Disclosed are a display apparatus and a method of driving the same. An image signal receiver sequentially outputs frames for image display. A local illumination calculation unit displays an image on a display unit based on the frames and calculates light emission amount of a light source provided for each section of a backlight unit. A frame interpolator generates sub-frames based on the frames and outputs the sub-frames and the frames. A pixel adjuster adjusts light transmittance of each pixel according to the brightness of each pixel and the amount of the light emitted from each section which is calculated by the local illumination calculation unit when the image is displayed based on the frames and the sub-frames sequentially output from a frame interpolator. Local illumination is realized without increasing the number of memory devices while a frame frequency is increased.

Optical correction for high uniformity panel lights

A display has a spatial light modulator for dynamically controlling a luminance of each pixel according to an input signal, the spatial light modulator having a non-uniform spatial characteristic, the display also having an optical filter having a spatial pattern to alter the luminance to compensate at least partially for the non-uniform spatial characteristic. An electronic signal processing element applies some pre ompensation predominantly of higher spatial frequencies for the non-uniform spatial characteristic. Such dynamic and optical compensation can enable tuning for different optimizations or for compensating for variations over time. A backlight has an optical source and an optical filter, the source having a color output which has a non-uniform spatial characteristic, and the optical filter having a spatial pattern to alter the color to compensate in part at least for the non-uniform spatial characteristic.

Ambient Black Level

Techniques for operating a display system in a wide range of ambient light conditions are provided. An intensity of ambient light on a display panel may be detected. The display panel may be illuminated by light sources in addition to the ambient light. An individual light source may be individually settable to an individual light output level. If it is determined that the luminance level of the ambient light is above a minimum ambient luminance threshold, an ambient black level may be calculated using the intensity of ambient light. Light output levels of one or more of the light sources may be elevated to first light output levels. Here, the one or more light sources may be designated to illuminate one or more dark portions of an image. The first light output levels may create a new black level equaling the determined ambient black level.

Methods and Apparatus for Reducing Flickering and Motion Blur in a Display Device

A method including selecting a luminance setting for at least a portion of a display from a plurality of luminance settings; controlling the insertion of blank fields with respect to frames of data displayed on the display for the selected luminance setting at a duty ratio, at least some of the luminance settings having an associated range of duty ratios for reducing flicker and/or blur perceived by a user. 1. A method comprising:selecting a luminance setting for at least a portion of a display from a plurality of luminance settings;controlling the insertion of blank fields with respect to frames of data displayed on the display for the selected luminance setting at a duty ratio, at least some of the luminance settings having an associated range of duty ratios for reducing flicker and/or blur perceived by a user.2. (canceled)3. A method as claimed in claim 1 , further comprising automatically changing at least some of the luminance settings in value in dependence upon one or more detected contexts.4. (canceled)5. A method as claimed in claim 1 , further comprising changing the range of one or more ranges of duty ratios in dependence upon one or more detected contexts to minimize flicker and/or blur perceived by a user wherein the one or more detected contexts includes detected movement of content displayed on the display.6. (canceled)7. A method as claimed in claim 1 , further comprising selecting a duty ratio from the range of duty ratios associated with the selected luminance setting in dependence upon one or more detected contexts.8. A method as claimed in claim 7 , wherein the one or more detected contexts includes detected illuminance and/or detected movement of content displayed on the display.9. (canceled)10. A method as claimed in claim 1 , further comprising determining whether the display content is updated claim 1 , wherein if the display content is updated the method includes entering an impulse drive mode claim 1 , and if the display content is not ...

TRANSMISSION TYPE DISPLAY DEVICE, DISPLAY METHOD AND DISPLAY PROGRAM

A transmission type display device includes an image formation unit that forms an image of image light, a display unit that transmits ambient light to an image extraction area, and a control unit that determines a first mode in which alight intensity determination value that is a value for determining a light intensity of an image formed by the image formation unit is fixed, and a second mode in which the light intensity determination value is variably set, wherein in the first mode, the control unit fixes the light intensity determination value, and controls the transmittance of the shade, and wherein in the second mode, the control unit variably sets the light intensity determination value, and controls the transmittance of the shade. 1. A transmission type display device comprising:an image formation unit that forms an image of image light being output to an image extraction area;a display unit that transmits ambient light to an image extraction area, so as to output image light from the image formation unit to the image extraction area, and changes a light level of the ambient light with a transmittance that is set by a shade in which a transmittance of light is a variable so as to pass the light to the image extraction area; anda control unit that determines a first mode in which a light intensity determination value that is a value for determining a light intensity of an image formed by the image formation unit is fixed, and a second mode in which the light intensity determination value is variably set, wherein in the first mode, the control unit fixes the light intensity determination value, and controls the transmittance of the shade, andwherein in the second mode, the control unit variably sets the light intensity determination value, and controls the transmittance of the shade.2. The transmission type display device according to claim 1 , further comprising:a sensor that detects one or both of the level of the ambient light, and the level of the ...

Display system and computer-readable medium

The present invention provides a display system capable of efficiently calibrating image content even when the image is displayed and thereby capable of reducing the time and cost required for calibration, and also provides a computer-readable recording medium. The control device thereof processes an image to be displayed on a display section beforehand so as to be usable for calibration. While the image is actually being displayed on the display section, the control device captures an image displayed on the display section using a capturing device at the timing at which a calibration image is displayed, compares the luminance or color in the calibration image with the luminance or color in the image obtained by capturing the calibration image, and creates correction information for correcting an image signal to be output to the display section on the basis of the result of the comparison.

DISPLAY DEVICE AND METHOD DRIVING THE SAME

A display device is disclosed. The device includes: a timing controller configured to derive data signals for a display panel from external signals; a date driver configured to derive data voltages from the data signals and apply the data voltage to data lines on the display panel; a gamma IC (integrated circuit) chip configured to apply gamma voltages to the data driver; a power supply IC chip configured to apply a most significant voltage to the data driver; a DAC (digital-to-analog converter) configured to receive the gamma voltages and the most significant voltage from the gamma IC chip and the power supply IC chip and generate the data voltages opposite to the data signals; and a power supply unit configured to convert the gamma voltages and the most significant voltage using the data signals and apply the converted voltages to the DAC. 1. A display device comprising:a timing controller configured to derive data signals for a display panel from external signals;a date driver configured to derive data voltages from the data signals and apply the data voltages to data lines on the display panel;a gamma IC (integrated circuit) chip configured to apply gamma voltages to the data driver;a power supply IC chip configured to apply a most significant voltage to the data driver;a DAC (digital-to-analog converter) configured to receive the gamma voltages and the most significant voltage from the gamma IC chip and the power supply IC chip, respectively, and generate the data voltages opposite to the data signals; anda power supply unit configured to convert the gamma voltages and the most significant voltage using the data signals and apply the converted gamma voltages and the converted most significant voltage to the DAC.2. The display device of claim 1 , wherein the power supply unit includes:an extraction portion configured to extract the data signals;an arithmetic portion configured to calculate the gamma voltages and the most significant voltage using the data ...

SINGLE-PROJECTION WIDESCREEN PROJECTING DEVICE AND SINGLE-PROJECTION WIDESCREEN PROJECTING METHOD

A single-projection widescreen projecting device includes an image processing system and in turns in the direction of light path an optical non-imaging system providing a light source; an optical imaging system; a light path switching system; and a projecting lens which projects a magnified image onto a screen. The image processing system connects the optical imaging system to the light path switching system and is used to divide the image into N frames of small images and then transmit the small images to the optical imaging system. N is natural numeral greater than 1. At the moment of transmitting the small images to the optical imaging system, a corner signal corresponding to each frame of the small images is transmitted the light path switching system. The optical imaging system is used to receive N frames of the small images and light rays from the optical non-imaging system and then display the N frames of the small images after the light rays of the optical non-imaging system are adjusted. The light path switching system includes a mirror and a rotary motor. The rotary motor is used to receive the corner signal to control the rotating angle of the mirror. This invention uses a single-projection technology to achieve the widescreen projection with superior frame display ratio to the current art. 1. A single-projection widescreen projecting device , characterized in comprising an image processing system and in turns in the direction of light path an optical non-imaging system providing a light source;an optical imaging system; a light path switching system; and a projecting lens which projects a magnified image onto a screen;wherein{'b': '1', 'the image processing system connects the optical imaging system to the light path switching system and is used to divide the image into N frames of small images and then transmit the small images to the optical imaging system; N is natural numeral greater than ; at the moment of transmitting the small images to the ...

Liquid crystal display panel and liquid crystal display device

The liquid crystal display panel includes a liquid crystal display unit, and a backlight unit illuminating the liquid crystal display unit. The backlight unit includes first and second white light-emitting diodes that respectively emit white light, and first and second drive units that respectively supply a current to the first and second white light-emitting diodes. The first and second drive units are respectively configured to be able to adjust supply current to the first and second white light-emitting diodes. Chromaticities of the first and second white light-emitting diodes are of a relationship of being positioned opposite each other across a blackbody locus on an xy chromaticity diagram. The first and second white light-emitting diodes change over time so that, on the xy chromaticity diagram, an intersection point of the blackbody locus and a line that passes through the chromaticities of the first and second white light-emitting diodes becomes constant.

APPARATUS AND METHOD FOR PREPARING, STORING, TRANSMITTING AND DISPLAYING IMAGES

An imaging and display apparatus for passive displays evaluates the illumination of an input scene and incorporates data representative of such input scene within a transfer media. The transfer media may be a broadcast or transmission of image data, illumination data and gamma information that can be received by a display system, which includes a passive display illuminated by incident light, to display images while adjusting the incident light and/or gamma based on the received data to reduce energy requirements, to increase contrast or shades of gray in the displayed image, and to optimize light source operation for color fidelity. The data may be provided as a video signal, modulated video signal, s-video signal, digital signal, or other signal that can be used by a passive display system to display images. 148-. (canceled)49. A display system for passive displays , wherein the display system is configured to receive an input signal including separately encoded display illumination control data and image data , the display system comprising:a control configured to process the separately encoded display illumination control data included in the input signal and to control the optical characteristics of incident light to a passive display based on the separately encoded display illumination control data.50. The display system of claim 49 , wherein the control is configured to process the display illumination control data based on a maximized number of shades of gray in the displayed image.51. An image processing system for preparing control data for use in displaying a sequence of images claim 49 , such control data to be included with input image data to a passive display with an illuminating light source and used to control the illuminating light source claim 49 , the image processing system comprising:a buffer memory to receive image data representative of the sequence of images,an analyzer configured to analyze image data of a plurality of images of the ...

Image output apparatus, control method therefor, image display apparatus, control method therefor, and storage medium

Disclosed is an image output apparatus that outputs a plurality of image data to one or a plurality of image display apparatuses capable of controlling amounts of light of backlights, the image output apparatus including: a determining unit configured to determine whether the plurality of image data satisfy a predetermined condition; and a controlling unit configured to control, when the determining unit determines that the plurality of image data satisfy the predetermined condition, the one or the plurality of image display apparatuses such that either or both of amounts of light and number of light emission control units of the backlights used for display of the plurality of image data are the same.

DISPLAY DEVICE AND METHOD OF DRIVING THE SAME

The method is for driving a display device including luminescence pixels arranged in rows and columns. The method includes: applying a black signal voltage to (a) a first target luminescence pixel in one row of each row pair and (b) a second target luminescence pixel in the other row at the same time, thereby starting the non-light-emission durations of the first and second target luminescence pixels simultaneously; (ii) applying a first data signal voltage to the first target luminescence pixel; (iii) applying a second data signal voltage to the second target luminescence pixel; and (iv) causing the first and second target luminescence pixels to emit light simultaneously based on these data signal voltages, thereby starting the light-emission durations of the first and the second target luminescence pixels simultaneously. The processing starts at different times for all row pairs. 1. A method of driving a display device including a plurality of luminescence pixels arranged in rows and columns ,each of the luminescence pixels having (a) a light-emission duration in which the each of the luminescence pixels emits light and (b) a non-light-emission duration in which the each of the luminescence pixels does not emit light, andthe method comprising:(i) applying a black signal voltage to (a) a first target luminescence pixel in luminescence pixels in one row of each of the pairs of the rows and (b) a second target luminescence pixel in luminescence pixels in an other row of the each of the pairs at the same time, thereby starting the non-light-emission duration of the first target luminescence pixel and the non-light-emission duration of the second target luminescence pixel at the same time, and (ii) applying a first data signal voltage corresponding to the first target luminescence pixel to the first target luminescence pixel; and(iii) applying a second data signal voltage corresponding to the second target luminescence pixel to the second target luminescence pixel, and ...

Display apparatus and control method thereof

A display apparatus comprises a determination unit and a control unit, wherein when a block corresponding to an object region is not included in a predetermined number of blocks centered around a determination-target block, the determination unit determines that the determination-target block is a block which satisfies a predetermined condition, and wherein the control unit: sets a backlight emission brightness of a block corresponding to the object region to a first level, sets a backlight emission brightness of a block which satisfies the predetermined condition, among the blocks corresponding to a background region, to a second level that is lower than the first level, and sets a backlight emission brightness of a block which does not satisfy the predetermined condition, among the blocks corresponding to the background region, to a third level that is higher than the second level and not higher than the first level.

DETERMINATION OF DISPLAY DEVICE POWER CONSUMPTION

Example embodiments disclosed herein relate to determination of display device power consumption. In example embodiments, an operating parameter of a display device of a computing device is received, which, in some embodiments, may be a current level of brightness of the display device. A level of power consumption of the display device may then be determined based on the operating parameter. 1. A computing device comprising:a video interface for communication with an external display device; and a parameter reading module to receive a current operating parameter of the external display device,', 'a power consumption reading module to receive power consumption data describing a level of power consumption of the external display device based on the operating parameter, and', 'a power determination module to determine a level of power consumption of the external display device based on application of the current operating parameter to the power consumption data., 'a display management module comprising2. The computing device of claim 1 , wherein the parameter reading module:receives the current operating parameter from the external display device via the video interface, orreceives the current operating parameter from a user of the computing device.3. The computing device of claim 1 , wherein the power consumption reading module:receives the power consumption data from the external display device via the video interface,receives the power consumption data from a user of the computing device, orretrieves the power consumption data from a storage location accessible to the computing device.4. The computing device of claim 1 , wherein:the current operating parameter includes a brightness setting of the external display device, andthe power consumption data provides a predetermined level of power consumption for each of a plurality of brightness settings.5. The computing device of claim 4 , wherein the power determination module determines the level of power consumption ...

DUAL DISPLAY STRUCTURE

A dual display structure including a light source, a light guide plate, a first display module and a second display module is provided. The light guide plate includes a light incident surface, a first light exiting surface and a second light exiting surface. The first and second display modules are respectively disposed at one side of the first and second exiting surfaces in parallel and back to each other. Light emitted from the light source enters the light guide plate through the light incident surface and emits to the first display module and the second display module through the first light exiting surface and the second light exiting surface. 1. A dual display structure , comprising:a light source;a light guide plate, comprising a light incident surface, a first light exiting surface and a second light exiting surface;a first display module, disposed at a side of the first light exiting surface; anda second display module, disposed at a side of the second light exiting surface, wherein the first display module and the second display module are disposed in parallel and back to each other,wherein a light emitted from the light source enters the light guide plate through the light incident surface, and emits to the first display module and the second display module through the first light exiting surface and the second light exiting surface.2. The dual display structure as claimed in claim 1 , wherein the light guide plate has a shape of a trapezoid claim 1 , the light incident surface is a bottom surface of the trapezoid claim 1 , and the first light exiting surface and the second light exiting surface are respectively two side surfaces of the trapezoid.3. The dual display structure as claimed in claim 1 , wherein the first light exiting surface and the second light exiting surface are symmetric to a central axis of the light incident surface.4. The dual display structure as claimed in claim 1 , further comprising:a frame, wherein the first display module and ...

Apparatus and method for controlling screen brightness in a mobile terminal

An apparatus and a method for controlling screen brightness in a mobile terminal are provided. Particularly, an apparatus and a method for providing information regarding a currently set screen brightness degree and simplifying a process for changing a brightness control mode in a mobile terminal are provided. A sensing unit of the terminal determines an amount of ambient light during an automatic brightness control mode that controls the screen brightness, and a screen manager controls the screen brightness according to either a user mode or an automatic mode where the transition from the automatic mode to the user mode is simplified.

DISPLAY

A display includes: a display section that includes first pixels to nth pixels and displays perspective images assigned to the first to nth pixels; and a display control section that partitions the display section into sub-regions and performs display control on pixels in each of the sub-regions, independently, to vary a correspondence relationship between the first to nth pixels and the perspective images for each of the sub-regions. The display control section assigns a first perspective image to two pixels of the first pixel to the nth pixel and assigns a second perspective image to other two pixels of the first pixel to the nth pixel, in each of the sub-regions. The display control section adjusts a luminance level of one or both of the two pixels and a luminance level of one or both of the other two pixels in each of the sub-regions. 1. A display comprising:{'b': '4', 'a display section including a plurality of first pixels to a plurality of nth pixels, where n is an integer of or more, and displaying a plurality of perspective images assigned to the first to nth pixels; and'}a display control section partitioning the display section into a plurality of sub-regions and performing display control on pixels in each of the sub-regions, independently, thereby to vary a correspondence relationship between the first to nth pixels and the perspective images for each of the sub-regions,wherein the display control section assigns a first perspective image to two pixels of the first pixel to the nth pixel and assigns a second perspective image to other two pixels of the first pixel to the nth pixel, in each of the sub-regions, andthe display control section adjusts a luminance level of one or both of the two pixels and a luminance level of one or both of the other two pixels in each of the sub-regions.2. The display according to claim 1 , wherein the display control section performs adjustment to increase the luminance level of one or both of the two pixels and the ...

LIGHT SOURCE DEVICE, DISPLAY UNIT, AND ELECTRONIC APPARATUS

A display unit includes: a display section displaying an image; and a light source device emitting light for image display toward the display section, the light source device including a first light source emitting first illumination light and a light guide plate, the light guide plate including a plurality of scattering regions that allow the first illumination light entering through a side surface of the light guide plate to be scattered and then to exit from the light guide plate, in which the scattering regions each are configured of a plurality of scattering patterns including a first scattering pattern with a width varying according to a distance from the first light source. 1. A display unit comprising:a display section displaying an image; anda light source device emitting light for image display toward the display section, the light source device including a first light source emitting first illumination light and a light guide plate, the light guide plate including a plurality of scattering regions that allow the first illumination light entering through a side surface of the light guide plate to be scattered and then to exit from the light guide plate,wherein the scattering regions each are configured of a plurality of scattering patterns including a first scattering pattern with a width varying according to a distance from the first light source.2. The display unit according to claim 1 , whereinthe first scattering pattern has a width decreasing with decreasing distance from the first light source.3. The display unit according to claim 1 , whereinthe plurality of scattering patterns further include a second scattering pattern with a uniform width.4. The display unit according to claim 3 , whereinthe second scattering pattern is disposed to cover the first scattering pattern.5. The display unit according to claim 1 , whereinthe plurality of scattering patterns further include second scattering patterns disposed on both sides, in a width direction, of the ...

DISPLAY CONTROL APPARATUS

A display control apparatus is provided. Every time when the level of the signal is obtained, the peak display with respect to the level of the signal is initiated by the first peak display control unit in a predetermined display manner in the display position obtained by the peak position obtaining unit. On the other hand, the previous peak displays being displayed according to the level of the signal obtained at a previous time and a time before the previous time is continued, and the display manner of the previous peak display being displayed is changed according to the second peak display control unit. Accordingly, while one and more than one level are simultaneously displayed on one display device, the temporal sequence of the levels, which is simultaneously displayed with different display manners, can be recognized by the user. 1. A display control apparatus to control a level display device , the level display device comprising a plurality of display positions arranged in a predetermined order corresponding to increasing signal levels , the display control apparatus comprising:a level obtaining unit obtaining a level of a signal;a peak display position obtaining unit obtaining a display position among the plurality of display positions to perform a peak display for displaying a peak of the signal according to the level obtained by the level obtaining unit;a first peak display control unit displaying the peak display in a predetermined display manner in the display position obtained by the peak display position obtaining unit when the level of the signal is obtained by the level obtaining unit; anda second peak display control unit, when the level of the signal is obtained by the level obtaining unit while a previous peak display with respect to a level of signal obtained at a previous time by the level obtaining unit is being displayed in the display positions, continuing the previous peak display and changing a display manner of the previous peak display ...

DISPLAY APPARATUS LIGHT EMISSION CONTROL METHOD AND DISPLAY APPARATUS

A method controls a display that includes a display portion, a scanner, and a driver. The display portion includes light emitting elements arranged in a matrix form. The scanner is connected to common lines each of which is connected to corresponding elements that are arranged in a corresponding row. The scanner applies a voltage to a selected common line. The driver is connected to driving lines each of which is connected to corresponding elements that are arranged in a corresponding column. The driver activates selected elements. The method controls the display whereby displaying an image in each cycle including frames. The voltage is applied to the selected one of the common lines in a lighting frame in which the light emitting elements are driven in one cycle. The scanner is prevented from applying the voltage in a non-lighting frame in which the elements are not driven in the one cycle. 1. A light emission control method for a display apparatus , a display portion that includes a plurality of light emitting elements that are arranged in a matrix form,', 'a scanning portion that is connected to a plurality of common lines each of which is connected to the anode terminals of corresponding elements of said plurality of light emitting elements that are arranged in corresponding one of the rows of said display portion, the scanning portion applying a voltage to selected one of said common lines when said common lines are scanned by the scanning portion, and', 'a driving portion that is connected to a plurality of driving lines each of which is connected to the cathode terminals of corresponding elements of said plurality of light emitting elements that are arranged in corresponding one of the columns of said display portion, the driving portion activating selected elements of said plurality of light emitting elements so that currents flow in the selected elements,', 'wherein the light emission control method controls light emission of the display apparatus so that ...

Image processing apparatus, projector and image processing method

A driving device of a display apparatus includes a calculation unit which calculates a correction value to correct a gradation value of a pixel that is a correction target on the basis of n gradation values that corresponds to n pixels and a correction unit which corrects the gradation value of a pixel that is a correction target on the basis of the correction value and the calculation unit performs a first calculation in a case in which a gradation value among the n gradation values is included in a first range, performs a second calculation in a case in which a gradation value among the n gradation values is included in a second range, respectively performs the first calculation or the second calculation on the n gradation values, and calculates the correction value on the basis of the calculation results performed on the n gradation values.

DRIVE CIRCUIT, DRIVE METHOD, AND DISPLAY DEVICE

A drive circuit is configured to drive a display panel including pixels and a backlight including LEDs. The display panel includes a critical light transmission level that is a minimum level for causing each pixel to respond in a predetermined time upon an input of an image. The drive circuit includes first and second circuits. The first circuit is configured to divide the image into areas and determine brightness levels of the LEDs for the areas based on the image. The second circuit is configured to determine a light transmission level based on the image and the brightness levels such that the level is higher than the critical level. 1. A drive circuit for driving a display panel and a backlight , the display including a plurality of pixels and the backlight including a plurality of light sources , the display panel in which a critical light transmission level is set in advance , the critical light transmission level being a minimum level of light transmission level for causing each of the pixels to respond in a predetermined time upon an input of an input image , the drive circuit comprising:a brightness level determining circuit configured to divide the input image into a plurality of areas and determine brightness levels for the areas based on the input image corresponding to the areas, the brightness levels indicating brightness of the light sources corresponding to the area;a light transmission level determining circuit configured to determine light transmission levels based on the input image and the brightness levels such that the light transmission levels are higher than the critical light transmission level, the light transmission levels indicating light transmission of the pixels.2. The drive circuit according to claim 1 , wherein the predetermined time is set based on a switching period in which the input image is switched.3. The drive circuit according to claim 1 , wherein the brightness level determining circuit includes a brightness table including ...

PROJECTION DISPLAY DEVICE, PROJECTION DISPLAY METHOD, AND COMPUTER PROGRAM

A projection display device according to the invention includes a separating unit that assigns X separation information for identifying a type of an image to each pixel by using a characteristic amount of the input image, a luminance detecting unit that detects a luminance of a screen, a first determining unit that determines a first target region indicating a region on which halftone processing of converting the number of gradations is performed on the input image by using the X separation information, and a halftone processing unit that executes the halftone processing that varies depending on the luminance on the first target region. 1. A projection display device configured to project and display an input image input from an external device onto a screen , the projection display device comprising:an assigning unit configured to assign identification information for identifying a type of an image to each pixel by using a characteristic amount of the input image;a luminance detecting unit configured to detect a luminance of the screen;a first determining unit configured to determine a first target region indicating a region on which halftone processing of converting the number of gradations is performed on the input image by using the identification information; anda halftone processing unit that executes the halftone processing that varies depending on the luminance on the first target region.2. The projection display device according to claim 1 , whereinthe first determining unit determines a region, as the first target region, constituted by pixels to which the identification information indicating highlight as an image of which gradation value is equal to or higher than a threshold has been assigned on the input image, andthe halftone processing unit executes first dither processing on the first target region when the luminance is equal to or higher than a reference value and executes second dither processing, with which lower screen ruling than the screen ...

Liquid crystal display device

A liquid crystal display device includes: a liquid crystal display unit that includes pixels and displays an image based on an input image signal input for each of frames; a drive unit that applies a voltage based on the input image signal to the pixels of the liquid crystal display unit while inverting a polarity of the voltage for each of the frames; a signal discrimination unit that discriminates whether the input image signal is an interlaced signal; and a signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the signal discrimination unit discriminates that the input image signal is the interlaced signal. The drive unit inverts the phase of the polarity of the voltage applied to the pixels when the signal generation unit generates the phase inversion enabling signal.

APPARATUS AND METHOD FOR DISPLAYING IMAGES AND APPARATUS AND METHOD FOR PROCESSING IMAGES

An apparatus and method for displaying images and an apparatus and method for processing images are provided. The image display apparatus includes an image processor configured to receive an image frame and convert a gradation value of each of a plurality of pixels constituting the image frame to generate a sub image frame; and a controller configured to control a display panel to sequentially display the image frame and the sub image frame. 1. An apparatus for displaying images , comprising:an image processor configured to receive an image frame and convert a gradation value of each pixel of a plurality pixels constituting the image frame to generate a sub image frame; anda controller configured to drive a display panel to sequentially display the image frame and the sub image frame.2. The apparatus as claimed in claim 1 , wherein the image processor generates the sub image frame by converting the gradation value of each pixel of the plurality of pixels of the image frame according to a relation equation V=V−V claim 1 , wherein Vis a gradation value of a pixel from among the plurality of pixels of the sub image frame claim 1 , Vis a maximum gradation value claim 1 , and Vis a gradation value of a pixel from among the plurality of pixels of the image frame.3. The apparatus as claimed in claim 1 , wherein the controller drives the display panel to display the sub image frame during a display time which is shorter than a display time of the image frame.4. The apparatus as claimed in claim 1 , wherein image processor generates the sub image frame by converting the gradation value of each pixel of the plurality of pixels of the image frame based on a luminance difference between a target luminance value corresponding to the gradation value of each pixel of the plurality of pixels of the image frame and a real luminance value.5. The apparatus as claimed in claim 4 , wherein the image processor controls a gamma value to adjust a maximum luminance and a minimum luminance ...

BACKLIGHT PROVIDING APPARATUS, DISPLAY APPARATUS AND CONTROLLING METHOD THEREOF

A backlight providing apparatus is provided. The backlight providing apparatus includes image analyzers which detect brightness property information of an image frame for each of content views; a light source which provides a backlight to a display panel; a backlight driver which drives the light source; and a controller which controls the backlight driver to provide a backlight corresponding to the detected brightness property information for each of the plurality of content views. 1. A backlight providing apparatus comprising:a plurality of image analyzers which detect brightness property information of an image frame for each of a plurality of content views;a light source which provides a backlight to a display panel;a backlight driver which drives the light source; anda controller which controls the backlight driver to provide a backlight corresponding to the detected brightness property information for each of the plurality of content views.2. The apparatus as claimed in claim 1 , wherein the controller determines a duty ratio for each of the plurality of content views based on brightness property information of the respective image frames and controls the backlight driver to drive the light source in accordance with the determined duty ratio.3. The apparatus as claimed in claim 2 , wherein each of the plurality of image analyzers detects an average brightness value of each pixel constituting the respective image frame of the contents as the brightness property information.4. A method for controlling a backlight providing apparatus claim 2 , the method comprising:for a plurality of contents which are combined by image frame, dividing image frames of each of the plurality of contents into content views and detecting brightness property information of an image frame of the respective content views; andproviding a backlight corresponding to the detected brightness property information for each content view.5. The method as claimed in claim 4 , wherein the ...

DISPLAY DEVICE AND METHOD OF DRIVING THE SAME

A display device including pixels has formed therein at least two drive blocks each made up of pixel rows. Each of the pixels includes: a drive transistor; a first electrostatic capacitor and a second electrostatic capacitor; an organic EL element; a first switching transistor provided between the source and the drain of the drive transistor; and a second switching transistor that supplies a signal current to the organic EL element. Each of the pixels in a kth drive block includes a third switching transistor provided between a first signal line and the first electrostatic storing capacitor, and each of the pixels in a k-th drive block includes a fourth switching transistor provided between a second signal line and the first electrostatic storing capacitor. A second control line for controlling conduction of the first switching transistor is connected to each of the pixels in a same one of the drive blocks. 1. A display device including pixels arranged in rows and columns , the display device comprising:a first signal line and a second signal line which are disposed in each of the columns, for supplying the pixels with a signal voltage that determines luminance of the pixels;a first power source line and a second power source line;a scanning line disposed in each of the rows; anda first control line and a second control line which are disposed in each of the rows,wherein the pixels compose at least two driving blocks each of which includes at least two of the rows, a light-emitting element that includes terminals, one of the terminals being connected to the second power source line, the light-emitting element emitting light according to a flow of a signal current corresponding to the signal voltage;', 'a drive transistor that includes a gate, a source, and a drain and converts the signal voltage applied between the gate and the source of the drive transistor into the signal current, one of the source and the drain being connected to the first power source line;', 'a ...

DRIVER UNIT FOR ELECTRO-OPTICAL DEVICE, ELECTRO-OPTICAL DEVICE, ELECTRONIC EQUIPMENT, AND METHOD FOR DRIVING ELECTRO-OPTICAL DEVICE

A liquid crystal display device is configured so that one frame is divided into two fields and a pixel of a liquid crystal panel is driven. The liquid crystal display device performs overdrive when a gray-scale level to be supplied to the pixel is different between a previous frame and a current frame. The liquid crystal display writes a voltage corresponding to the gray-scale level of the pixel with a positive voltage in a first field, and writes a voltage corresponding to the gray-scale level to be supplied to the pixel with a negative voltage in a second field. When performing overdrive, the liquid crystal display device performs overdrive in both of the first field and the second field. Also, when performing overdrive, the liquid crystal display device corrects the gray-scale level to be supplied to the pixel. 1. A driver unit that drives an electro-optical device including a plurality of pixels , the driver unit comprising:a signal processing section,whereina first image signal that designates a first gray-scale level is supplied to the signal processing section,a second image signal that designates a second gray-scale level is supplied to the signal processing section,the signal processing section corrects a third image signal that designates a third gray-scale level that is different from the first gray-scale level and the second gray-scale level to generate a first gray-scale signal and a second gray-scale signal each corresponding to the third image signal,supplies the first gray-scale signal to a first pixel among the plurality of pixels during a first period, andsupplies the second gray-scale signal to the first pixel during a second period,one of the first gray-scale level and the second gray-scale level has a potential higher than a predetermined potential, andthe other one of the first gray-scale level and the second gray-scale level has a potential lower than the predetermined potential.2. The driver unit according to claim 1 ,whereinthe first pixel ...

IMAGE DISPLAY APPARATUS

An image display apparatus according to the present disclosure includes: an image display panel; a backlight device; a first optical element located between the image display panel and the backlight device and configured to deflect a light incident thereon; a second optical element located between the first optical element and the image display panel and configured to change a deflection angle of emitted light according to a voltage applied thereto; a plurality of first lenses located between the first optical element and the backlight device; a plurality of second lenses located between the second optical element and the image display panel; a position detection section configured to detect a viewing position of a viewer; and a control section configured to control the voltage applied to the second optical element, according to the detected viewing position. The first lenses and the second lenses constitute an afocal optical system. 1. An image display apparatus comprising:an image display panel;a backlight device located on a back surface side of the image display panel;a first optical element located between the image display panel and the backlight device and configured to deflect a light incident thereon;a second optical element located between the first optical element and the image display panel and configured to further deflect the light deflected by the first optical element and to change a deflection angle of emitted light according to a voltage applied thereto;a plurality of first lenses located between the first optical element and the backlight device;a plurality of second lenses located between the second optical element and the image display panel;a position detection section configured to detect a viewing position of a viewer; anda control section configured to control the voltage applied to the second optical element, according to the viewing position detected by the position detection section, whereinthe first lenses and the second lenses ...

TERMINAL DEVICE AND BACKLIGHT ILLUMINATION METHOD FOR DISPLAY THEREOF

A terminal device includes a display () displaying information, a backlight control unit () controlling backlight luminance of the display, an illuminance sensor () detecting a surrounding brightness, an opening/closing detection unit() detecting opening or closing of the housing, a memory () storing a predetermined luminance value and a luminance correction value for illuminance, and a control unit () controlling the display, the backlight control unit, the illuminance sensor, the opening/closing detection unit and the memory. When the opening/closing detection unit detects the change of the state of the housing from the closed state to the open state, the control unit reads the predetermined luminance value from the memory, causes the backlight control unit to light the display backlight at that luminance value, and then causes the backlight control unit to change the luminance of the display backlight according to the surrounding brightness detected by the illuminance sensor and the luminance correction value for illuminance stored in the memory. 1. A terminal device , comprising:a display for displaying information;a backlight control unit for controlling backlight luminance of the display;an illuminance sensor for detecting a surrounding brightness;an opening/closing detection unit for detecting opening/closing of a housing;a memory for storing a predetermined luminance value and a luminance correction value for illuminance; anda control unit for controlling the display, the backlight control unit, the illuminance sensor, the opening/closing detection unit and the memory,wherein, when the opening/closing detection unit detects that a state of the housing is changed from a closed state to an open state, the control unit reads the predetermined luminance value from the memory, causes the backlight control unit to light the backlight of the display at the luminance value, and then causes the backlight control unit to change the backlight luminance of the display ...

METHODS AND DEVICES FOR CONTROLLING DISPLAY IN RESPONSE TO DEVICE ORIENTATION AND AMBIENT LIGHT LEVELS

Devices and methods are provided for controlling a display of a portable display device based on input form a plurality of ambient light photosensors positioned proximal to edges of the display. The display device includes one or more orientation sensors configured such that processing circuitry of the display device may determine, based on input from the orientation sensors, an operative orientation of the device relative to gravity, and subsequently identify an uppermost display edge. Signals from the ambient light photosensors proximal to the uppermost display edge are employed to control the display. 1. A mobile display device comprising:a display configured for displaying an upright image in two or more operative orientations, each operative orientation having associated therewith a display edge that is positioned in an uppermost orientation;one or more orientation sensors;a plurality of photosensors configured to detect ambient light, wherein at least one photosensor is located proximal to each said display edge; andprocessing circuitry operatively connected to said display, said orientation sensors, and said photosensors; identify the operative orientation of said device with respect to gravity in response to input provided from said orientation sensors;', 'identify the uppermost display edge corresponding to the identified operative orientation;', 'display an upright image on said display; and', 'control said display according to input from one or more photosensors proximal to the identified uppermost display edge., 'wherein said processing circuitry is configured to2. The device according to wherein one or more of said photosensors are located on a bezel surrounding said display.3. The device according to wherein said bezel is touch sensitive.4. The device according to wherein one or more of said photosensors are located on a side of said device.5. The device according to wherein said side of said device is beveled.6. The device according to wherein said ...

Luminescence shock avoidance in display devices

A luminescence shock avoidance algorithm selectively limits the brightness level of a display device when the display device is activated in a dark environment to prevent the temporary vision impairment that can occur when a display device is activated in a dark environment. The algorithm receives the state of the display (e.g. on or in standby mode), and can optionally receive an ambient lighting value from an ambient light sensor and a user-selectable manual brightness adjustment setting to determine whether luminescence shock avoidance should even be triggered, and if it is triggered, how much should the brightness level of the display be limited.

OPTICAL DISPLAY SYSTEM AND METHOD, ACTIVE AND PASSIVE DITHERING USING BIREFRINGENCE, COLOR IMAGE SUPERPOSITIONING AND DISPLAY ENHANCEMENT WITH PHASE COORDINATED POLARIZATION SWITCHING

A display apparatus includes a passive display, a light source, and a video signal input, in operation in response to a video signal the passive display modulates light from the light source to provide an image, and the intensity of the light source is controlled by the video signal. 188.-. (canceled)89. A display device for displaying an image having a low intended brightness , the display device comprising:a display;an illuminating light source;a computer control, wherein the computer control:receives brightness information, and determines brightness and a range of grey levels for the input image signal, andif an image corresponding to the input image signal is a dim image of a low intended brightness and low contrast, increases the range of grey levels used to display the image on the display corresponding to the input image signal, and decreases an amount of light from the illuminating light source so as to alleviate any increase of brightness of the image which is caused by said increasing of the range of grey levels performed such that the low intended brightness of the image is preserved.90. A display device for displaying an image having a low intended brightness and an intended color balance , comprising:a display capable of displaying an image within a predetermined range of grey levels;an illuminating light source capable of producing at least three different colors; anda computer control arranged for receiving an input image signal, said image signal including color grey level information of an image relating to the at least three different colors and a brightness information of said image;wherein the computer control:receives said brightness information and said color grey level information, and determines a range of color grey levels for the input image signal;changes the determined range of color grey levels to a second range of color grey levels which is larger that said determined range of color grey levels, if the brightness of said input image ...

SIGNAL OUTPUT APPARATUS AND SIGNAL TRANSMITTING AND RECEIVING SYSTEM

A signal output apparatus including a light-emitting element, first brightness control circuitry and second brightness control circuitry. The first brightness control circuitry is supplied with a first signal and controls a brightness of the light-emitting element according to the first signal so as to illuminate the light-emitting element at a first brightness when the first signal is ON. The second brightness control circuitry is supplied with a second signal including at least first and second states and controls the light-emitting element to be illuminated at a second brightness different from the first brightness if the second signal assumes the first state when the light-emitting element is illuminated by the first control circuitry at the first brightness according to the first signal. 1. A signal output apparatus , comprising:a light-emitting element;first brightness control circuitry configured to be supplied with a first signal and control a brightness of the light-emitting element according to the first signal so as to illuminate the light-emitting element at a first brightness when the first signal is ON; andsecond brightness control circuitry configured to be supplied with a second signal including at least first and second states and control the light-emitting element to be illuminated at a second brightness different from the first brightness if the second signal assumes the first state when the light-emitting element is illuminated by the first control circuitry at the first brightness according to the first signal.2. The signal output apparatus of claim 1 , whereinthe first brightness control circuitry controls the emission state of the light-emitting element so that the light-emitting element is illuminated at a third brightness different from the first or second brightness when the first signal is OFF.3. The signal output apparatus of claim 1 , further comprising:an emission control circuit configured to be supplied with information to be output ...

Method and apparatus for controlling brightness of display in mobile device

A method and an apparatus for automatically controlling the brightness of a display unit in a mobile device according to external illuminance are provided. The brightness control method includes measuring a gradient of the mobile device, measuring an external illuminance through at least one of an illuminance sensor and a camera, depending on the measured gradient of the mobile device, and regulating the brightness of the mobile device, based on the measured external illuminance.

METHOD OF CALCULATING CORRECTION VALUE AND DISPLAY DEVICE

A method of calculating a correction value used when signal value correction is performed with respect to an image signal supplied to a display panel includes setting a target luminance value, which is not uniform in an overall surface of the display panel, as a target luminance value of one image signal value such that at least a portion of a distribution of target luminance values at each plane position of the display panel becomes a curved distribution, and calculating a correction value at each plane position of the display panel using luminance observed at each plane position of the display panel when one image signal value is given to the overall surface of the display panel and the target luminance value at each plane position of the display panel. 1. A method of calculating a correction value used when signal value correction is performed with respect to an image signal supplied to a display panel , the method comprising the steps of:setting a target luminance value, which is not uniform in an overall surface of the display panel, as a target luminance value of one image signal value such that at least a portion of a distribution of target luminance values at each plane position of the display panel becomes a curved distribution; andcalculating a correction value at each plane position of the display panel using luminance observed at each plane position of the display panel when one image signal value is given to the overall surface of the display panel and the target luminance value at each plane position of the display panel.2. The method according to claim 1 , wherein each of a plurality of representative values selected from a minimum grayscale value to a maximum grayscale value of the display panel becomes one image signal value claim 1 , and the correction value at each plane position of the display panel is calculated corresponding to the image signal value as each of the representative values.3. The method according to claim 2 , wherein the target ...

LUMINANCE BOOST METHOD AND SYSTEM

A system and method for increasing perceived contrast in a medical display () is provided. The method involves temporarily increasing luminance output of at least part of a display () in response to a received request for improved visualization. To compensate for the change in luminance especially while the viewer's eyes adapt to the change in luminance, the method includes continuously modifying the display parameters especially during an adaptation period to match an adaptation of the viewer's eyes. The modified parameters at any given may correlate to the degree of adaptation by the viewer's eyes to the change. After a period of time, the display () may be returned to its normal operating luminance and corresponding settings, which may be selected to maximize the lifetime of the display (). 1. A method for improving visualization in a image display:operating the display at a first luminance setting;receiving a request for improved visualization;modifying the luminance of the display to cause the display to operate at a second luminance setting that is higher than the first luminance setting; andreturning the display to the first luminance setting;wherein the calibration parameters of the display are continuously adapted such that the display complies to a standard when the display operates at the first luminance setting, while the display is gradually transitioning from the luminance setting to the second luminance setting, and while the display operates at the second luminance mode.2. The method of claim 1 , wherein at least one of the modification of the luminance to cause the display to operate at the second luminance setting or the modification of the luminance to cause the display to return to the first luminance setting comprises a gradual change in luminance.3. The method of claim 1 , wherein the return of the display to the first luminance is triggered by at least one of: an elapsed period of time claim 1 , an increase in temperature that exceeds an ...

Optical correction for high uniformity panel lights

A display has a spatial light modulator for dynamically controlling a luminance of each pixel according to an input signal, the spatial light modulator having a non-uniform spatial characteristic, the display also having an optical filter having a spatial pattern to alter the luminance to compensate at least partially for the non-uniform spatial characteristic. An electronic signal processing element applies some precompensation predominantly of higher spatial frequencies for the non-uniform spatial characteristic. Such dynamic and optical compensation can enable tuning for different optimizations or for compensating for variations over time. A backlight has an optical source and an optical filter, the source having a color output which has a non-uniform spatial characteristic, and the optical filter having a spatial pattern to alter the color to compensate in part at least for the non-uniform spatial characteristic. 125-. (canceled)26. A display comprising:a spatial light modulator having addressable pixels for dynamically controlling a luminance of each pixel according to an input signal, the spatial light modulator having a non-uniform spatial optical characteristic;a backlight system having a light output that is intentionally non-uniform to alter the luminance and/or colour to compensate at least partially for the non-uniform spatial optical characteristic; andan electronic signal processing element arranged to apply some precompensation for the non-uniform spatial optical characteristic to the input signal.27. The display according to claim 26 , wherein the intentionally non-uniform light output of the backlight system contains claim 26 , at least partially claim 26 , inverse non-uniformities of the spatial light modulator.28. The display according to claim 26 , wherein the precompensation by said electronic signal processing element is applied at least partially by spatial modulation of the backlight.29. The display according to claim 26 , the backlight ...

SCREEN LIGHT COMPUTATION DEVICE OR METHOD

In a screen light computation device, a first polarizing filter () blocks P waves reflected by a reflective surface, and screen light; the reflected light sensor () receives S waves; a second polarizing filter () allows the screen light to pass while blocking the S waves; and a screen light sensor (), being set at Brewster's angle, where the P waves is not received, still receives some leakage P waves. A screen light extraction computation (LUT; not shown) stores a correlation between the detection value by the reflected light sensor and the detection value by the screen light sensor . The LUT is queried, a value of only the screen light that does not include reflected light is computed, and the screen light that does not include ambient light (reflected light) reflected in a display screen of the monitor is detected without turning off a backlight of a monitor. 1. A screen light computation device comprising:a screen light detection sensor that is positioned to face, at a predetermined angle, a display screen of a monitor, which emits screen light linearly polarized in a first direction, the screen light detection sensor detecting the screen light;a reflected light detection sensor that has a light-receiving surface provided on a plane substantially same with a plane of a light-receiving surface of the screen light detection sensor, the reflected light detection sensor detecting ambient light reflected by the display screen of the monitor;a first polarizing filter that is provided on a front side of the reflected light detection sensor, the first polarizing filter having a polarizing direction perpendicular to the polarizing direction of the screen light which has been linearly-polarized; anda computation means for computing a value of the screen light included in a detection value by the screen light detection sensor on the basis of both the detection value by the reflected light detection sensor and the detection value by the screen light detection sensor.2. The ...

METHODS AND APPARATUSES OF EYE ADAPTATION SUPPORT

A device for reducing the brightness level of a portion of a display area of an imaging unit. The device comprises a gaze tracking unit adapted to assess eye gazing direction of an observer, a controllable transparency panel adapted to be mounted in front of a display area of an imaging unit and to display a changeable brightness reduction pattern having a original display brightness portion and a darkening portion therearound, and a controller which instructs the controllable transparency panel to change the brightness reduction pattern according to the eye gazing direction in real time so that the location of the original display brightness portion being correlated with the location of at least one fovea of the observer in real time. 1. A device for reducing the brightness level of a portion of a display area of an imaging unit , comprising:a gaze tracking unit adapted to assess eye gazing direction of an observer;a controllable transparency panel adapted to be mounted in front of a display area of an imaging unit and to display a changeable brightness reduction pattern having an original display brightness portion and a darkening portion therearound; anda controller which instructs said controllable transparency panel to change said brightness reduction pattern according to said eye gazing direction in real time so that the location of said original display brightness portion is correlated with the location of at least one fovea of said observer in real time.2. The device of claim 1 , wherein controller instructs said controllable transparency panel to change said brightness reduction pattern so that light passing through the said original display brightness portion being projected on at least one fovea of said observer.3. The device of claim 1 , wherein said controllable transparency panel being substantially transparent in said original display brightness portion.4. The device of claim 1 , wherein portions peripheral to said original display brightness portion ...

Color Signal Converter, Display Unit, Color Signal Conversion Program, Computer-Readable Storage Medium Storing Color Signal Conversion Program, And Color Signal Conversion Method

A color conversion circuit converts a three-primary-color signal PS to a 5-color signal PS, and includes (i) a color component extraction module that generates, by performing isochromatic conversion, a 7-color signal PS made up of 7 color components equivalent in terms of color to color components d through d of the 5-color signal PS, and (ii) a matrix operation module that generates color components of the 5-color signal by performing linear combination of the color components of the 7-color signal. With this, it is possible to realize a color conversion circuit by which colors represented by a signal after conversion can be adjusted using intuitively-understandable parameters. 1. A color display apparatus for displaying a color image , comprising:{'b': '4', 'n-color pixels corresponding to n color components (n ) of which the color image is made up, wherein, said n color components include a first color component, a second color component, and a third color component obtained by performing color mixing of the first and second color components, and in a case where the third equivalent color component of the m-color signal is reproduced by the display panel,'}auxiliary illumination by means of pixels corresponding to the first and second color components is performed in order to enhance illumination by a pixel corresponding to the third color component.2. The color display apparatus as defined in claim 1 ,wherein, the auxiliary illumination is not performed in a case where a gray level of the third equivalent color component of the m-color signal is low, while the auxiliary illumination is performed in a case where the gray level of the third equivalent color component is high.3. The color display apparatus as defined in claim 1 , wherein claim 1 , the first color component is red claim 1 , the second color component is green claim 1 , and the third color component is yellow.44. A color display method for displaying a color image claim 1 , wherein claim 1 , n-color ...

Digital Photo Frame with Power Saving Function and Related Power Saving Method

A digital photo frame having power saving functions includes a display panel, a power generation unit for switching a system power according to a power control signal, a passive infrared sensor installed on the display panel for detecting whether a user exists within a specific range to generate a user detection signal, a central processing unit for adjusting backlight intensity of the display panel when the system power is provided by the power generation unit according to the user detection signal and for generating a power switch-off signal when the backlight intensity of the display panel is turned off according to the user detection signal, and a power control unit for generating the power control signal to switch off the system power when the backlight intensity of the display panel is adjusted to be switched off according to the power switch-off signal. 1. A digital photo frame with power saving functions comprising:a display panel;a power generation unit for providing system power and switching the system power according to a power control signal;a passive infrared sensor, installed in the display panel, for detecting whether a user exists within a specific range by detecting changes in infrared radiation occurring when there is movement by the user whose temperature is different from surroundings of the digital photo frame, to generate a user detection signal;a central processing unit, coupled to the power generation unit and the passive infrared sensor, for dimming backlight intensity of the display panel according to the user detection signal when the system power is provided by the power generation unit and for generating a power switch-off signal according to the user detection signal when the backlight intensity of the display panel is dimmed to be off; anda power control unit, coupled to the power generation unit and the central processing unit, for generating the power control signal to control the power generation unit to switch off the system power ...

Liquid Crystal Display Driving Method and Display Device Using the Same

A driving method for a display device includes receiving a first image data corresponding to a display of the display device and composed of a plurality of frames; obtaining a first frame and a second frame neighboring to the first frame from the plurality of frames; calculating a plurality of sub-frames according to the first frame and the second frame; adjusting a brightness of at least one sub-frame of the plurality of sub-frames, to have an average brightness of the plurality of sub-frames be lower than an average brightness of the plurality of frames; sequentially inserting the plurality of sub-frames between the first frame and the second frame, to obtain a second image data; and driving the display device according to the second image data. 1. A driving method for a display device , comprising:receiving a first image data corresponding to a display of the display device and composed of a plurality of frames;obtaining a first frame and a second frame neighboring to the first frame from the plurality of frames;calculating a plurality of sub-frames according to the first frame and the second frame;adjusting a brightness of at least one sub-frame of the plurality of sub-frames, to have an average brightness of the plurality of sub-frames be lower than an average brightness of the plurality of frames;sequentially inserting the plurality of sub-frames between the first frame and the second frame, to obtain a second image data; anddriving the display device according to the second image data.2. The driving method of claim 1 , wherein the step of adjusting the brightness of the at least one sub-frame of the plurality of sub-frames claim 1 , to have the average brightness of the plurality of sub-frames be lower than the average brightness of the plurality of frames claim 1 , comprises:removing at least one component color of the at least one sub-frame respectively.3. The driving method of claim 1 , wherein the step of adjusting the brightness of the at least one sub- ...

IMAGE DISPLAY APPARATUS

The image display apparatus according to the invention is characterized by comprising a light source for emitting out parallel light, a light deflector capable of deflecting the parallel light emitted out from the light source, and a control unit operable to produce a scan signal for deflecting the light deflector periodically and produce a light intensity control signal in sync with the scan signal based on entered image information thereby controlling the light source. 1. An image display apparatus characterized by comprising:a light source for emitting out parallel light,a light deflector capable of deflecting the parallel light emitted out from said light source, anda control unit operable to produce a scan signal for deflecting said light deflector periodically, and produce a light intensity control signal in sync with said scan signal based on entered image information thereby controlling said light source.2. The image display apparatus as recited in claim 1 , characterized in that a plurality of said light deflectors are arranged within a plane that defines a viewer's field of view.3. The image display apparatus as recited in claim 1 , characterized in that said control unit produces a multistage light intensity control signal claim 1 , and said light source emits out parallel light having a light intensity depending on said light intensity control signal.4. The image display apparatus as recited in claim 1 , characterized in that said light source comprises a diffuse light emitting source for emitting out diffuse light claim 1 , and an optical transformation device for transforming said diffuse light into parallel light.5. The image display apparatus as recited in claim 1 , wherein said light source is capable of emitting out parallel light having a plurality of wavelength bands.6. The image display apparatus as recited in claim 5 , characterized in that said light source comprises a plurality of diffuse light emitting sources for emitting out diffuse light ...

DISPLAY DEVICE

A display device according to the present invention includes a plurality of pixels each including a plurality of sub pixels a plurality of auxiliary capacitance lines forming an auxiliary capacitance with the sub pixels and an auxiliary capacitance driver configured to supply an auxiliary capacitance drive signal to the auxiliary capacitance lines and to apply a voltage to the auxiliary capacitance. In the display device the auxiliary capacitance driver includes a plurality of connection terminals each connected to each of the auxiliary capacitance lines 1. A display device comprising:a plurality of pixels each including a plurality of sub pixels;a plurality of auxiliary capacitance lines configured to form an auxiliary capacitance with the sub pixels; andan auxiliary capacitance line driver configured to supply an auxiliary capacitance drive signal to the auxiliary capacitance lines and to apply a voltage to the auxiliary capacitance, the auxiliary capacitance line driver including a plurality of first connection terminals each connected to each of the auxiliary capacitance lines.2. The display device according to claim 1 , wherein each of the auxiliary capacitance lines is configured to form the auxiliary capacitance with each of the sub pixels included in each of the pixels.3. The display device according to claim 1 , further comprising a first trunk line claim 1 , whereinthe auxiliary capacitance line driver is configured to supply a first auxiliary capacitance drive signal to a first auxiliary capacitance line group including the auxiliary capacitance lines, andthe first auxiliary capacitance line group is connected to the auxiliary capacitance line driver via the first trunk line.4. The display device according to claim 1 , further comprising:a plurality of scanning lines connected to the pixels; and a scanning line driver configured to supply a scanning line drive signal to the scanning lines to drive the pixels, whereinthe scanning lines and the auxiliary ...

APPARENT DISPLAY RESOLUTION ENHANCEMENT FOR MOVING IMAGES

A method for displaying a digital image on a display, the digital image having a higher resolution than the display, the method includes: generating a sequence of digital subimages having display resolution, based on the digital image; and displaying the digital subimages in sequence; characterized in that the sequence of digital subimages are generated based on a model of the retina. 2. Method according to claim 1 , further comprising the step of:shifting the digital image in a predetermined direction.3. Method according to claim 1 , where the subimages are generated in a process of optimization in which all subimages are locally optimized depending on the local content of digital image (I) to make the predicted retinal image essentially equal to the digital image (I).5. Method according to claim 4 , wherein the generation of the sequence of digital subimages is further based on the dynamic range of the display.6. Method according to claim 4 , where T is an integer number of subimages that is perfectly integrated by the human eye depending on the given frame rate.7. Method according to claim 6 , wherein T is an integer and equal to three (3) for a 120 Hz display.8. Method according to claim 6 , wherein T is an integer and equal to four (4) for a 120 Hz display.9. Method according to claim 6 , wherein T is an integer and equal to two (2) for a 60 Hz display.10. Method according to claim 4 , wherein the sequence of subimages is post-processed for reducing flicker.11. Method according to claim 10 , wherein the post-processing is done by adapting the temporal variation of the sequence of subimages.12. Method according to claim 1 , applied to a sequence of images claim 1 , wherein a sequence of subimages for each image is generated further based on existing local motion in image regions having dynamic content.13. Method according to claim 12 , wherein the subimage sequences of a multitude of images of the sequence are optimized jointly.14. Method according to claim 12 , ...

CHARACTER HIGHLIGHTING CONTROL APPARATUS, DISPLAY APPARATUS, HIGHLIGHTING DISPLAY CONTROL METHOD, AND COMPUTER PROGRAM

The present invention provides a character highlighting control apparatus including a character pixel extractor and a highlighting degree controller. The character pixel extractor is configured to extract a pixel corresponding to a character part from input image data. The highlighting degree controller is configured to carry out control in such a way that a maximum emission luminance of a display device is linked with input image data, to thereby selectively increase an emission luminance of an extracted pixel on a display screen and avoid increase of an emission luminance of a background part on the display screen. 1. (canceled)2. (canceled)3. (canceled)4. (canceled)5. (canceled)6. A character highlighting control apparatus comprising:a highlighting degree controller configured to carry out control so that a maximum luminance of a display device is increased based on information that specifies a highlighting degree in selective highlighting of a character part;a character pixel extractor configured to selectively extract a pixel corresponding to a character part from input image data; andan image quality converter configured to output input image data to the display device without conversion of the input image data for a pixel position corresponding to the character part, and output input image data resulting from uniform decrease of grayscale values dependent upon the information specifying the highlighting degree to the display device for a pixel position corresponding to a background part.7. (canceled)8. A display apparatus comprising:a display device;a highlighting degree controller configured to carry out control so that a maximum luminance of the display device is increased based on information that specifies a highlighting degree in selective highlighting of a character part;a character pixel extractor configured to selectively extract a pixel corresponding to a character part from input image data; andan image quality converter configured to output input ...

DISPLAY CONTROL DEVICE, DISPLAY CONTROL METHOD, AND PROGRAM

There is provided a display control device including a display control unit that performs display control of displaying an input pixel using display elements classified into high-luminance elements having luminance higher than reference luminance, which is luminance of the input pixel, and low-luminance elements having luminance lower than the reference luminance, and equalizing the number of display elements to which a driving voltage of positive polarity is applied with the number of display elements to which a driving voltage of negative polarity is applied, among the display elements belonging to the classification of the same luminance. 1. A display control device comprising:a display control unit that performs display control of displaying an input pixel using display elements classified into high-luminance elements having luminance higher than reference luminance, which is luminance of the input pixel, and low-luminance elements having luminance lower than the reference luminance, and equalizing the number of display elements to which a driving voltage of positive polarity is applied with the number of display elements to which a driving voltage of negative polarity is applied, among the display elements belonging to the classification of the same luminance.2. The display control device according to claim 1 , wherein the display control unit performs the display control for each color of the display elements.3. The display control device according to claim 1 , wherein the display control unit arranges the high-luminance elements and the low-luminance elements in the same line.4. The display control device according to claim 3 , wherein the display control unit changes the classification of the luminance for every two elements in the same line.5. The display control device according to claim 1 , wherein the display control unit reverses the polarity of the driving voltage for every two lines.6. A display control method comprising:performing display control of ...

INFORMATION DISPLAY DEVICE

An information display apparatus includes main image tone value modification means for modifying a tone value to compress a tone of a main image, first projection means for projecting the main image having the compressed tone by the main image tone value modification part with a first polarization component, sub-image tone value modification means for compressing tones of the sub-image, then modifying tone values of the sub-image by adding to the tone values after the compression an offset value, the offset value being not less than the maximum tone value of the main image having the compressed tone, correction image generation means for generating the correction image formed by subtracting the tone values of the main image having the compressed tone from the tone values modified by the sub-image tone value modification means, and second projection means for projecting the correction image with a second polarization component different from the first polarization component overlaying to the main image projected by the first projection means. 1. An information display apparatus comprising:main image tone value modification means for modifying a tone value to compress a tone of a main image;first projection means for projecting the main image having the compressed tone by the main image tone value modification part with a first polarization component;sub-image tone value modification means for compressing tones of a sub-image, then modifying tone values of the sub-image by adding to the tone values after the compression an offset value, the offset value being not less than the maximum tone value of the main image having the compressed tone;correction image generation means for generating the correction image formed by subtracting the tone values of the main image having the compressed tone from the tone values modified by the sub-image tone value modification means; andsecond projection means for projecting the correction image with a second polarization component ...

UNDERWATER IMAGE PROJECTION DISPLAY SYSTEM, LIGHTING CONTROL SYSTEM AND DEVICE AND METHOD OF OPERATING SAME

An underwater image projection system submerged in a body of water and projecting an image within said body of water is provided having an enclosure with a lens assembly. A projection element has a light source projecting an image within the body of water from the projection element with an at least one light source steering the image. A system controller is coupled to and controls the projected light source, the projected light source steering device and the further image steering device. A user inputs image data to the controller through the user input device and the controller interprets the image data into a set of image control variables and executes control of the projected light source and image source and further image steering device in coordination and projects the image through the projection element to project from underwater a static or animated image on an underwater surface of the body of water. 1. An underwater image projection system submerged in a body of water and projecting an image within said body of water , comprising:an at least one enclosure;a lens assembly;at least one submerged projection element with an at least one projected light source projecting an image within said body of water from the projection element;at least one light source steering or modulating device;a system controller coupled to and controlling the at least one projected light source, the at least one projected light source steering or modulating device and the at least one light source steering device;a user input device, wherein a user inputs image data to the controller through the user input device and the controller interprets the image data into a set of image control variables and executes control of the at least one projected light source and at least one light source steering device in coordination with each other and projects the image through the projection element with the projected light source by controlling the at least one projected light source steering ...