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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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12-01-2012 дата публикации

Contrast control for display device

Номер: US20120007880A1

Автор: Pei-Chen Huang, Po-Yang Wu, Shih-Yu Hsu, Yu-Chung Lee

Принадлежит: Realtek Semiconductor Corp

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.

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Номер записи: 1

19-01-2012 дата публикации

Display device

Номер: US20120013650A1

Автор: Naoki Mizubuchi

Принадлежит: Sharp Corp

A display device with a simple structure is provided where the number of electrical lines connected to the active matrix substrate can be reduced even when the number of pixels in the display module is increased. A liquid crystal display device includes a superimposing circuit (superimposing module) that superimposes a lighting signal for a light-emitting diode (light source) on a drive signal for a data line drive circuit (drive circuit) and a scan line drive circuit (drive circuit) to generate a superimposed signal. On the active matrix substrate are provided a photosensor unit (light-electricity transducer) that receives light from the light-emitting diode and outputs an electrical signal corresponding to the received light, and a decoding circuit (decoding module) that decodes the electrical signal from the photosensor unit to the drive signal for the data line drive circuit and the scan line drive circuit.

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Номер записи: 2

26-01-2012 дата публикации

Alignment factor for ambient lighting calibration

Номер: US20120019494A1

Автор: David W. Lum, Nyok Khiam Lam, Paolo Sacchetto, Ulrich Barnhoefer

Принадлежит: Apple Inc

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

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Номер записи: 3

26-01-2012 дата публикации

Method and apparatus for power control of an organic light-emitting diode panel and an organic light-emitting diode display using the same

Номер: US20120019506A1

Автор: Gerben Hekstra, Ron LINSSEN, Serve LAMBIE

Принадлежит: Chimei Innolux Corp

A power control method, a power control apparatus, and an OLED display are provided. The method includes the steps of: estimating a voltage value according to image content of an image, the voltage value indicative of a minimal required voltage allowing the OLED panel to display the image; and controlling a voltage generator to adjust a booster voltage provided to the OLED panel according to the estimated voltage value.

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Номер записи: 4

02-02-2012 дата публикации

Using a display abstraction to control a display

Номер: US20120026079A1

Автор: David A. Curran, Maciej Maciesowicz

Принадлежит: Apple Inc

The disclosed embodiments relate to a system for controlling a display. This system includes a generic display-control interface which facilitates controlling the display, and a pluggable display-control module including code that implements a standardized set of display-control commands. The system also includes a plug-in framework that houses the pluggable display-control module and enables the generic display-control interface to communicate with the pluggable display-control module. In some embodiments, the system also includes a generic transport interface which facilitates communicating with the display, and a pluggable transport module including code that implements a standardized transport protocol. In these embodiments, the plug-in framework houses the pluggable transport module and enables the pluggable display-control module to communicate with the pluggable transport module.

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Номер записи: 5

02-02-2012 дата публикации

Projection display apparatus

Номер: US20120026170A1

Автор: Masahiro Haraguchi, Masutaka Inoue, Noboru Yoshinobe, Susumu Tanase, Takaaki Abe, Tomoya Terauchi, Yoshinao Hiranuma

Принадлежит: Sanyo Electric Co Ltd

A projection display apparatus according to embodiments includes a light source that emits color component light beams of a plurality of colors and an imager that modulates the color component light beams of a plurality of colors emitted from the light source. The projection display apparatus includes an element control unit that controls the imager; and a light source control unit that controls the light source. The element control unit controls the imager based on an image output signal obtained by a signal expansion process of an image input signal. The light source control unit performs a power reduction process of reducing power supplied to the light source according to an expansion amount of the image input signal expanded by the signal expansion process. The light source control unit performs a light emission period control process of adjusting light emission periods of a color component light beams of a plurality of colors emitted from the light source within a 1 -frame period according to the image input signal.

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Номер записи: 6

02-02-2012 дата публикации

Configurable Interface Controller

Номер: US20120030386A1

Автор: Charles Ray Johns, Harm Peter Hofstee, James Allan Kahle

Принадлежит: International Business Machines Corp

A flexible input/output controller logic interfaces with existing input/output controllers (IOC's) in order to configure the amount of data sent to and received from the IOC's. The flexible I/O interface receives data from a component at a rate determined by the particular component. The flexible I/O interface then feeds the received data to a traditional I/O controller at a rate suitable for the I/O controller. Thus, the interface to the individual I/O controllers is maintained. The flexible I/O logic balances bandwidth between a plurality of individual I/O controllers in order to better utilize the overall system I/O bandwidth. In one embodiment, the I/O configuration managed by the flexible I/O logic is determined during system-build, while in another embodiment, the I/O configuration is set during system initialization.

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Номер записи: 7

09-02-2012 дата публикации

Image display device, image display system, and image display method

Номер: US20120032976A1

Автор: Katsuyuki Omura, Takanori Nagahara

Принадлежит: Ricoh Co Ltd

An image display device refers to a database, in which at least one image frame to be displayed on a display unit and configuration information representing at least one drawn image to be superimposedly drawn on the at least one image frame are registered to be associated with each other, to judge whether or not an image frame identical to one of the at least one image frame received from an image frame provision device is present in the database, and causes the display unit to display at least one of the at least one drawn image represented by a part of the configuration information associated with an image frame judged as being identical to a received one of the at least one image frame.

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Номер записи: 8

16-02-2012 дата публикации

Method of driving a light source and display apparatus for performing the method

Номер: US20120038691A1

Автор: Hwan-Woong Lee, Moon-Shik Kang, Young-sup KWON

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method of driving a light source, which comprises a first light-emitting module including first to k-th light source blocks and disposed at a first edge of a light guide plate, and a second light-emitting module including first to m-th light source blocks and disposed at a second edge of the light guide plate, wherein k and m are natural numbers, includes generating a plurality of duty control signals corresponding to the first to k-th top light source blocks and the first to m-th bottom light source blocks based on an image signal, and selectively generating first to k-th top driving signals and first to m-th bottom driving signals using the plurality of duty control signals based on a three-dimensional image enable signal, where the first to k-th top driving signals drive the first light-emitting module, and the first to m-th bottom driving signals drive the second light-emitting module

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Номер записи: 9

23-02-2012 дата публикации

Intelligent display

Номер: US20120044255A1

Автор: Baldave Singh, Bhupinder Seran

Принадлежит: Baldave Singh, Bhupinder Seran

An LED display device which comprises a display for displaying images stored in device memory and may be used to construct and store images, and edit images, using an input device integral to the display device such that it is operable as a self contained and stand-alone device. The display device is also connectable to like display devices to provide larger display areas. The LED display device may optionally also function as a gaming device.

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Номер записи: 10

23-02-2012 дата публикации

Display device and driving method thereof

Номер: US20120044270A1

Автор: Alexander Arkhipov, Baek-woon Lee

Принадлежит: Samsung Mobile Display Co Ltd

A display device includes a display panel, a gray scale converter, and a scale factor generator. The display panel includes a plurality of pixels. The gray scale converter is for converting gray levels of pixel data signals of a current frame by multiplying the pixel data signals of the current frame by a scale factor of the current frame. The scale factor generator is for comparing a conversion current value with an overcurrent prevention current value to generate the scale factor of the current frame.

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Номер записи: 11

08-03-2012 дата публикации

Image display apparatus and information processing apparatus

Номер: US20120056905A1

Автор: Masahiro Baba, Ryosuke Nonaka, Yuma Sano

Принадлежит: Individual

In one embodiment, an image display apparatus is disclosed. The apparatus includes a liquid crystal panel, a backlight, a calculation unit, a reference unit, a multiplier unit, and a determination unit. The backlight includes light sources illuminating the liquid crystal panel unit. The calculation unit calculates a representative value of relative luminances of pixels in the each of small regions into which the display region is divided. The reference unit refers to prestored lighting pattern data items for the light sources. The multiplier unit multiplies, for each of the small regions, the referred lighting pattern data item by the representative value. The determination unit determines emission intensities of respective light sources based on multiplication results of the multiplier unit.

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Номер записи: 12

08-03-2012 дата публикации

Calibration of display for color response shifts at different luminance settings and for cross-talk between channels

Номер: US20120056910A1

Автор: Milivoje Aleksic, Reza Safaee-Rad

Принадлежит: Qualcomm Inc

The techniques of this disclosure are applicable to backlight display devices. For such devices, the backlight may have different backlight intensity settings in order to promote power conservation. The techniques of this disclosure may apply different adjustments to the display, depending on the backlight intensity setting. In one example, different color correction matrices may be applied for different backlight settings in order to achieve desirable adjustments in the device at the different backlight settings. The adjustments described herein may address chrominance shifts due to different backlight settings as well as cross-talk between color channels. The techniques may also be applicable to organic light emitting diode (OLED) displays that have different luminance settings, and some described techniques may be applicable to displays that have static or fixed luminance output.

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Номер записи: 13

08-03-2012 дата публикации

Adaptive color correction for display with backlight modulation

Номер: US20120056911A1

Автор: Milivoje Aleksic, Min Dai, Reza Safaee-Rad

Принадлежит: Qualcomm Inc

The techniques of this disclosure are applicable to backlight display devices. For such devices, the backlight may have different backlight intensity settings in order to promote power conservation. The techniques of this disclosure may apply different adjustments to the display, depending on the backlight intensity setting. In one example, different color correction matrices may be applied for different backlight settings in order to achieve desirable adjustments in the device at the different backlight settings. The adjustments described herein may address chrominance shifts due to different backlight settings as well as cross-talk between color channels. The techniques may also be applicable to organic light emitting diode (OLED) displays that have different luminance settings, and some described techniques may be applicable to displays that have static or fixed luminance output.

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Номер записи: 14

15-03-2012 дата публикации

Photosensitive circuit and system for photosensitive display

Номер: US20120061556A1

Автор: Chen-Pang Kung, Issac Wing-Tak Chan

Принадлежит: Industrial Technology Research Institute ITRI

A photosensitive circuit is provided. The photosensitive circuit is adapted to a pixel in a pixel array. The photosensitive circuit includes a display element for generating light, transmitting light, or reflecting light, a control circuit coupled to the display element for controlling light intensity of the display element according to a data line and a gate line, and a photosensitive element coupled between the gate line and a read line for generating current at the read line to sense the position of an object according to a reflected light or a shadow from ambient light when light from the display element is reflected by an object or ambient light is shadowed by the object. The control terminal of the photosensitive element is connected to another gate line.

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Номер записи: 15

15-03-2012 дата публикации

Organic light emitting display and method of driving the same

Номер: US20120062623A1

Автор: Do-Ik Kim, Jae-Woo Ryu, Jung-Keun Ahn

Принадлежит: Samsung Mobile Display Co Ltd

A method of driving an organic light emitting display in which a frame is divided into a plurality of sub frames, includes: storing a plurality of bit change values corresponding to emission times in a plurality of lookup tables; selecting one of the lookup tables from among the plurality of lookup tables; measuring and storing emission times of pixels included in the organic light emitting display; extracting one of the bit change values from the selected lookup table corresponding to the emission time of one of the pixels when first data to be supplied to the one of the pixels is input; and changing a bit value of the first data to generate second data to be supplied to the one of the pixels utilizing the extracted bit change value.

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Номер записи: 16

22-03-2012 дата публикации

Display of brightened preview image

Номер: US20120069221A1

Автор: Francisco Imai

Принадлежит: Canon Inc

An image capture device includes an image sensor for capturing image data of a scene, and a display screen for displaying a preview of the captured image of the scene. Additionally, the image capture device includes a photovoltaic solar cell for outputting electrical energy responsive to environmental lighting conditions. A control section determines whether the image capture device is or is not currently being used in a bright environment. Responsive to a determination that the image capture device is currently being used in a bright environment, the control section increases brightness of the display screen, and switches electrical energy outputted from the photovoltaic cell for use by the display screen.

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Номер записи: 17

29-03-2012 дата публикации

System, method, and computer program product for increasing an lcd display vertical blanking interval

Номер: US20120075437A1

Автор: David Robert Cook, Gerrit A. Slavenburg, Thomas F. Fox

Принадлежит: Nvidia Corp

A system, method, and computer program product are provided for enhancing a viewing experience when display content is viewed utilizing stereo glasses. In use, display content is received for being outputted utilizing a display. Further, a duration of a vertical blanking interval associated with the display content is increased for enhancing a viewing experience when the display content is viewed utilizing the stereo glasses.

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Номер записи: 18

05-04-2012 дата публикации

Dynamic Display Adjustment Based on Ambient Conditions

Номер: US20120081279A1

Автор: Brian Christopher Attwell, Ken Greenebaum

Принадлежит: Apple Inc

The techniques disclosed herein use a display device, in conjunction with various optical sensors, e.g., an ambient light sensor or image sensors, to collect information about the ambient conditions in the environment of a viewer of the display device. Use of these optical sensors, in conjunction with knowledge regarding characteristics of the display device, can provide more detailed information about the effects the ambient conditions in the viewer's environment may have on the viewing experience. A processor in communication with the display device may create an ambient model based at least in part on the predicted effects of the ambient environmental conditions on the viewing experience. The ambient model may be used to adjust the gamma, black point, white point, or a combination thereof, of the display device's tone response curve, such that the viewer's perception remains relatively independent of the ambient conditions in which the display is being viewed.

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Номер записи: 19

05-04-2012 дата публикации

Recording a Command Stream with a Rich Encoding Format for Capture and Playback of Graphics Content

Номер: US20120081378A1

Автор: Filip Iliescu, Jean-Francois Roy

Принадлежит: Apple Inc

Analyzing an application executing on a target device. An application may be executed on a target device. Low cost measurement may be gathered regarding the application executing on the target device. In response to a trigger, high cost measurement data may be gathered regarding the application executing on the target device. The high cost measurement data may include graphics commands provided by the application. The graphics commands and related information may be stored and provided to a host. The host may modify the graphics commands to perform experiments to determine performance issues of the application executing on the target device. The host may determine whether the performance is limited by the CPU or the GPU and may determine specific operations that are causing performance issues. The host may provide suggestions for overcoming the performance issues.

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Номер записи: 20

05-04-2012 дата публикации

Display apparatus and method of driving the same

Номер: US20120081412A1

Автор: Byungchoon Yang, Dongkwon Kim, Heetae Kim, Ho-Young Kim, Hyeonyong Jang, Young-Keun Lee

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A display apparatus includes a display panel, a backlight unit, a backlight control circuit, sensors, a read-out circuit and a sensor auxiliary circuit. The display panel includes pixels and displays an image. The backlight unit includes a first light source which emits a first light in a infrared light range. The backlight control circuit controls a brightness of the first light source. The sensors sense an external signal and outputs first sensing signals. The read-out circuit outputs the first sensing signals as second sensing signals. The sensor auxiliary circuit compares a maximum value and a minimum value of the second sensing signals and provides a brightness control signal to the backlight control circuit based on the compared difference to control the brightness of the first light source.

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Номер записи: 21

12-04-2012 дата публикации

Liquid crystal display and local dimming control method thereof

Номер: US20120086713A1

Автор: Byoungchul Cho, Changkyun PARK, Daeho Cho, Heejung Hong

Принадлежит: LG Display Co Ltd

A liquid crystal display and a local dimming control method thereof are discussed. The liquid crystal display includes a liquid crystal display panel selectively displaying a 2D image and a 3D image in response to a mode signal, a backlight unit including a plurality of light sources, a backlight driving circuit individually driving a plurality of previously determined blocks each including the light sources based on a dimming value of each block, and a local dimming control circuit, that calculates a pixel gain value based on a dimming value of each block in a first frame, applies the pixel gain value to a data compensation for a second frame, which is arranged later than the first frame, and varies a time point when the pixel gain value for the data compensation is applied in response to the mode signal.

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Номер записи: 22

19-04-2012 дата публикации

Optical sensor and display apparatus

Номер: US20120091321A1

Автор: Christopher Brown, Kohei Tanaka

Принадлежит: Sharp Corp

Provided are an optical sensor having a wider dynamic range with reduced temperature dependence, and a display apparatus in which these optical sensors are used. An optical sensor includes an accumulation node (INT); a reset signal line (RST); a readout signal line (RWS); a photodiode (D 1 ) (photodetecting element); a photodiode (D 2 ) (reference element) that has a light-shielding layer; a thin-film transistor (M 1 ) (first switching element) that outputs a potential of the accumulation node (INT) in response to the readout signal during a sensing period; and a thin-film transistor (M 2 ) (second switching element) that is provided between the accumulation node (INT) and the photodiode (D 2 ), and that electrically separates the accumulation node (INT) from the photodiode (D 2 ) when the potential of the accumulation node (INT) upon supply of the readout signal is higher than a potential on a side of the photodiode (D 2 ) opposite to the accumulation node (INT).

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Номер записи: 23

19-04-2012 дата публикации

Graphics display system with video scaler

Номер: US20120093215A1

Автор: Alexander G. MacInnis, Chengfuh Jeffrey Tang, Greg A. Kranawetter, James T. Patterson, Xiaodong Xie

Принадлежит: Broadcom Corp

A method for processing video data includes performing by one or more processors and/or circuits in a video processing device, the one or more processors and/or circuits including a video scaler, a memory, and a scaler engine, functions including receiving a video image by the video processing device. The functions also include determining whether the video scaler requires less memory bandwidth to scale the video image before writing the video image to the memory or after reading the video image from the memory, and scaling the video image based on the determination. If the video scaler requires less memory bandwidth to scale the video image before writing the video image to the memory, performing by the one or more processors and/or circuits scaling of the video image in the video scaler using a video input clock of the video scaler to generate a first scaled video image.

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Номер записи: 24

03-05-2012 дата публикации

Liquid crystal display device and potential setting method for the same

Номер: US20120105510A1

Автор: Masanobu Mizusaki, Takashi Katayama, Takeshi Noma, Youhei Nakanishi

Принадлежит: Sharp Corp

A liquid crystal display device includes source bus lines, gate bus lines intersecting with the source bus lines, pixels arranged in a matrix to correspond to intersections between the gate bus lines and the source bus lines, each of the pixels including a TFT, a pixel electrode, a common electrode, and a liquid crystal layer, and a potential control section for controlling the potential of the common electrode. The potential control section sets a voltage, obtained by reducing potential V cenf255 of the common electrode at which flicker is minimum in display of gray level as black display and gray level as white display alternately every pixel by a predetermined voltage, as center voltage V cen255 of the potential of the common electrode in display of gray level for all the pixels.

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Номер записи: 25

10-05-2012 дата публикации

Liquid crystal display device and method for controlling display of liquid crystal display device

Номер: US20120112991A1

Автор: Hideki Ichioka, Katsuteru Hashimoto, Katsuya Otoi, Kohji Fujiwara

Принадлежит: Sharp Corp

An embodiment of a liquid crystal display device includes: a liquid crystal panel including pixels arranged in a pixel; and a backlight that irradiates it with light. In at least one example embodiment, the pixels included in the liquid crystal panel each include picture elements different in color. The picture elements are each provided with a color filter corresponding to the color of the picture element. The liquid crystal display device includes: an aperture ratio converting section that, to reduce optical cross talk, decreases an aperture ratio for inputted image data and outputs data of the aperture ratio; and a backlight data converting section that, to supplement the aperture ratio for the image data which is decreased by the aperture ratio converting section, converts data to increase a backlight luminance. This backlight luminance control prevents or reduces optical or electrical cross talk.

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Номер записи: 26

17-05-2012 дата публикации

Liquid crystal display and global dimming control method thereof

Номер: US20120120089A1

Автор: Heumeil BAEK, Minchul Byun

Принадлежит: LG Display Co Ltd

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.

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Номер записи: 27

31-05-2012 дата публикации

Display driving circuit and display device including the same

Номер: US20120133661A1

Автор: Hyun-wook Lim, Sang-Kyu Lee

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A display driving circuit includes a clock dividing unit and a data processing unit. The clock dividing unit receives a first clock signal, generates a second clock signal having a second clock frequency by dividing the first clock signal having a first clock frequency, and outputs the second clock signal. The data processing unit receive the first clock signal, the second clock signal, and input data with a first data frequency, separates input data into first data and second data, outputs the first data based on the second clock signal, and outputs the second data with a second data frequency based on the first clock signal.

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Номер записи: 28

31-05-2012 дата публикации

Selective compensation for age-related non uniformities in display

Номер: US20120133835A1

Автор: Franciscus Hendrikus Van Heesch, Michiel Adriaanszoon Klompenhouwer, Oleg Belik

Принадлежит: KONINKLIJKE PHILIPS ELECTRONICS NV

A video signal compensator ( 10, 70, 80, 290 ) for selectively compensating for age-related non-uniformities in a display, receives an indication of motion or detects motion in an incoming video signal, and receives or determines an indication of amounts of compensation for the different parts of the display needed to compensate for the non-uniformities. The compensator selectively applies the needed amount of compensation to the video signal according to the indicated motion to apply less of the needed compensation where there is less motion, over at least some of the range of possible motions. This can reduce the drive levels at least where the non uniformities are less visible because of the motion in the video. The reduced drive levels can lead to less ageing and thus prolong display life. The amounts of needed compensation can be predicted or determined from measured outputs of pixels of the display.

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Номер записи: 29

07-06-2012 дата публикации

Image display apparatus and control method for controlling the same

Номер: US20120140145A1

Автор: Nobuyuki Hanamoto

Принадлежит: Canon Inc

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.

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Номер записи: 30

14-06-2012 дата публикации

Self-Refresh Panel Time Synchronization

Номер: US20120146968A1

Автор: David Glen

Принадлежит: ATI TECHNOLOGIES ULC

In an embodiment, a method in a device of controlling a display is provided. The method includes transmitting a heartbeat signal in a self-refresh state. The heartbeat signal is configured to be used by a display to remain in sync with the device while the device is in the self-refresh state.

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Номер записи: 31

14-06-2012 дата публикации

Electronic publication viewer, method for viewing electronic publication, program, and integrated circuit

Номер: US20120147042A1

Автор: Hidehiko Shin, Nobuki Tominaga, Tomoko Katayama, Yuki Shinomoto

Принадлежит: Panasonic Corp

An electronic publication viewer ( 1000 ) includes a display target specifying unit ( 1100 ) that specifies a display target page and the position and size of the display target region, a page structure data obtaining unit ( 1200 ) that obtains page structure data corresponding to the display target page, a rendering unit ( 1300 ) that generates the display image data corresponding to the position and size of the display target region, a display image data caching unit ( 1400 ) that caches the display image data, and a display control unit ( 1500 ) that causes the display image data obtained from the rendering unit ( 1300 ) or the display image data caching unit ( 1400 ) in a position of a display unit superimposed on the display target region.

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Номер записи: 32

14-06-2012 дата публикации

Device and method for tuning color temperature in digital display device

Номер: US20120147061A1

Автор: Kyong-Ho LIM

Принадлежит: LG Display Co Ltd

The present invention relates to method and device for tuning a color temperature in a digital display device, in which variation of color temperatures and color feelings between gradients is reduced for improving a picture quality.

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Номер записи: 33

14-06-2012 дата публикации

Display device

Номер: US20120147068A1

Автор: Kenji Gondo

Принадлежит: Kyocera Display Corp

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.

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Номер записи: 34

14-06-2012 дата публикации

Methods and systems for creating augmented reality for color blindness

Номер: US20120147163A1

Автор: Dan Kaminsky

Принадлежит: Dan Kaminsky Holdings LLC

In an embodiment, an image is provided to an augmented reality application program. The program detects colors and modifies the image. In particular, the program may analyze an image of a scene provided by a camera of a portable electronic device that may be problematic for color challenged users. It then modifies one or more colors such that a color challenged user viewing the altered image may perceive the scene colors as the colors would be perceived by a non-color challenged user viewing the scene.

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Номер записи: 35

21-06-2012 дата публикации

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

Номер: US20120153861A1

Автор: Barry Concklin, Daryl Chamberlin, Dimitrios Katsis, Peter J. Mole

Принадлежит: INTERSIL AMERICAS LLC

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).

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Номер записи: 36

21-06-2012 дата публикации

Remote control systems that can distinguish stray light sources

Номер: US20120154268A1

Автор: Brett G. Alten

Принадлежит: Apple Inc

Remote control systems that can distinguish predetermined light sources from stray light sources, e.g., environmental light sources and/or reflections are provided. The predetermined light sources can be disposed in asymmetric substantially linear or two-dimensional patterns. The predetermined light sources also can be configured to exhibit signature characteristics. The predetermined light sources also can output light at different signature wavelengths. The predetermined light sources also can emit light polarized in one or more predetermined polarization axes. Remote control systems of the present invention also can include methods for adjusting an allocation of predetermined light sources and/or the technique used to distinguish the predetermined light sources from the stray light sources.

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Номер записи: 37

21-06-2012 дата публикации

Display device, control method of display device and electronic apparatus

Номер: US20120154416A1

Автор: Fumitaka Gotoh, Naoyuki Takasaki, Ryoichi Tsuzaki, Takayuki Nakanishi, Toshihiko Tanaka, Tsutomu Harada

Принадлежит: Sony Corp

A display device includes: a display unit in which pixels including memories are arranged; a memory unit holding data; and a control unit rewriting the contents held by memories concerning pixels belonging to a partial area of the display unit based on data held by the memory unit in accordance with instructions given from the outside.

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Номер записи: 38

21-06-2012 дата публикации

Digital signage apparatus, recording medium, and method of adjusting display format

Номер: US20120154427A1

Автор: Koichi Sugiyama

Принадлежит: Sharp Corp

A digital signage apparatus capable of enhancing an advertising effectiveness by improving the attractiveness and the attention value is provided. A digital signage apparatus ( 1 ) includes an image display unit ( 11 ) capable of displaying an image; an image signal processor ( 16 ) that adjusts a display format of a display area in the image display unit ( 11 ); and a CPU ( 13 ) that controls the image signal processor ( 16 ). The CPU ( 13 ) selects a red or blue color depending on illumination of outside light in a vicinity of the image display unit ( 11 ) and illumination of the display area in the image display unit ( 11 ), and controls the image signal processor ( 16 ) such that the selected color is displayed on a color display area which is at least a part of the display area.

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Номер записи: 39

21-06-2012 дата публикации

Spatio-temporal color luminance dithering techniques

Номер: US20120154428A1

Автор: Ulrich T. Barnhoefer

Принадлежит: Apple Inc

Systems and methods are disclosed to enable the creation and the display of spatio-temporal dithered images. Embodiments include techniques that use color-shifting and luminance. In one embodiment, adjacent pixels are color-shifted with respect to each other and the color values of the adjacent pixels are temporally alternated with color values of pixels in the group. In another embodiment, the luminance of group of adjacent pixels is determined and the luminance of the group is made more homogenous spatially and temporally by distributing color variations over a larger number of pixels so as to reduce the luminance difference between the pixel with the least luminance and the pixel with the greatest luminance. Individual color components (e.g., red, green, blue) may also be separated and used so that the color-shifts associated with each color component may be simultaneously present in different pixels.

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Номер записи: 40

28-06-2012 дата публикации

Managing projected images on a projection surface

Номер: US20120162260A1

Автор: Christopher J. Hardee, Gary D. Cudak, Heather C. Miller, Randall C. Humes

Принадлежит: International Business Machines Corp

An apparatus, method, and system for managing projected images on a projection surface. One embodiment of the apparatus includes a sensor module, a determination module, and an interference module. The sensor module is configured to sense a projected image displayed on a projection surface. The projected image is projected from a projector. The determination module is configured to determine whether the projector is authorized to project the projected image on the projection surface in response to the sensor module sensing the projected image projected on the projection surface. The interference module is configured to interfere with a display of the projected image in response to the determination module determining that the projector is not authorized to project the projected image on the projected surface. The interference module alters the display of at least a portion of the projected image.

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Номер записи: 41

28-06-2012 дата публикации

Method of controlling backlight device and display apparatus using the same

Номер: US20120162276A1

Автор: Dae-Gwang Jang, Donghak Pyo, Hak-Mo CHOI, Min Ha Keum, Tae Kwon Jung

Принадлежит: SAMSUNG ELECTRONICS CO LTD

In a display apparatus, a display panel is divided into dimming areas and a backlight device includes light source blocks providing light to the dimming areas. Average gray-scale values and maximum gray-scale values respectively corresponding to the dimming areas are generated based on image signals provided to the dimming areas. Whether the average gray-scale values and the maximum gray-scale values are respectively within first and second reference ranges are checked. One of at least two parameters is selected according to a checked result, and representative brightness values respectively corresponding to the dimming areas are determined using the selected parameter. Duty ratios of the light source blocks are controlled based on the representative brightness values. As a result, power consumption is reduced when applying a dimming device to the display apparatus.

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Номер записи: 42

05-07-2012 дата публикации

Image display device capable of supporting brightness enhancement and power control and method thereof

Номер: US20120169797A1

Автор: Chang-Yeong Kim, In-Ji Kim, Seong-deok Lee, Won-Hee Choe

Принадлежит: Individual

An image display device capable of supporting brightness enhancement and power control and a method thereof, in which the brightness and contrast are enhanced and the power of a light source is controlled in accordance with the image characteristic. In the image display method, a parameter representative of an input image is calculated from a histogram of the input image, a model corresponding to the input image is selected from a plurality of representative models by analyzing the parameter, and then a brightness controlling function matched with the selected model is selected. The size of each component of a pixel constituting the input image is controlled using the brightness controlling function, and the output image of the pixel whose component size has been controlled is displayed.

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Номер записи: 43

19-07-2012 дата публикации

Data processing device and semiconductor device

Номер: US20120182273A1

Автор: Satoshi Uchino, Shinyu NINOMIYA

Принадлежит: Renesas Electronics Corp

Data transfer is enabled according to the reception capability of each of peripherals when a plurality of peripherals is connected to a host device via common lanes. A data processing device 1 includes a host device 10 provided with an interface, a first device 12 connected to the interface via a plurality of data lanes, and a second device 13 connected to the interface via some of the data lanes. The interface adds dummy data to actual data and then assigns and transmits the resultant data to the data lanes. When the actual data is taken in one of the first device and the second device, the interface causes the other one to recognize that the actual data is meaningless. Therefore, data can be transferred to the first device 12 and the second device 13 in accordance with reception capabilities.

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Номер записи: 44

19-07-2012 дата публикации

Background brightness compensating method and system for display apparatus

Номер: US20120182275A1

Автор: Hung-Shing Chen, Shih-Han Chen

Принадлежит: National Taiwan University of Science and Technology NTUST

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.

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Номер записи: 45

19-07-2012 дата публикации

Automatic adjustment of display systems based on light at viewer position

Номер: US20120182276A1

Автор: Tommy Wing Chau Kee

Принадлежит: Broadcom Corp

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.

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Номер записи: 46

19-07-2012 дата публикации

Methods and Apparatus for Estimating Light Adaptation Levels of Persons Viewing Displays

Номер: US20120182278A1

Автор: Anders Ballestad

Принадлежит: Dolby Laboratories Licensing Corp

Methods and apparatus for estimating adaptation of the human visual system take into account the distribution of light detectors (rods and cones) in the human eye to weight contributions to adaptation from displayed content and ambient lighting. The estimated adaptation may be applied to control factors such as contrast and saturation of displayed content.

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Номер записи: 47

19-07-2012 дата публикации

Projector device and projecting method

Номер: US20120182307A1

Автор: Jouji Yoshikawa, Yasuhiro Ueno, Yasushi Kitamura

Принадлежит: Kyocera Corp

According to an aspect, a projector device includes an image projecting unit and a control unit. The image projecting unit projects an image. The control unit acquires brightness information of regions included in a projection surface on which the image projecting unit can project the image, and causes the image projecting unit to project, based on the brightness information of the regions, the image on a low-brightness region, among the regions, whose brightness is lower than that of another region.

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Номер записи: 48

26-07-2012 дата публикации

System and Method for Pre-loading Flyer Image Tiles and Managing Memory for Same

Номер: US20120188280A1

Автор: David AU-YEUNG, David Meyers, Erik CHARLEBOIS, Jeff Francis, Matthew Cheung, Wehuns Tan

Принадлежит: Individual

In the present disclosure, there is disclosed a communication device including a pre-loading module configured to retrieve a first and a second set of flyer image tiles from a flyer image tile set stored in memory, the first set of flyer image tiles being associated with the most zoomed-out state and the second set of flyer image tiles being associated with a zoom level of a current viewport. The pre-loading module is further configured to associate the first set of flyer image tiles with an underlay viewport. The communication device further includes a display configured to display the first set of flyer image tiles in the underlay viewport that are visible in the current viewport and overlay the second set of flyer image tiles visible in the current viewport onto the first set of flyer image tiles.

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Номер записи: 49

02-08-2012 дата публикации

Apparatus and Method for Using an LED for Backlighting and Ambient Light Sensing

Номер: US20120194493A1

Автор: Walter Soto

Принадлежит: Broadcom Corp

Embodiments of a backlight module for illuminating a liquid crystal display (LCD) and sensing ambient light are provided herein. The backlight module includes a light-emitting diode (LED) array and a backlight controller. The backlight controller is configured to forward bias the LED array to backlight the LCD and reverse bias the LED array to sense the ambient light level. The backlight controller is configured to adjust the brightness of the LED array based on the current ambient lighting conditions sensed.

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Номер записи: 50

02-08-2012 дата публикации

Multiple simultaneous unique outputs from a single display pipeline

Номер: US20120194530A1

Автор: Brijesh Tripathi, Duncan A. Riach, Michael A. Ogrinc, Wayne D. Young

Принадлежит: Nvidia Corp

One embodiment of the present invention sets forth a system for generating multiple video output signals from a single video pipeline within a graphics processing unit. Pixel data from more than one display surface is retrieved and multiplexed before being transmitted to a video pipeline for processing. The resulting video pixel data is routed to video output encoders, which selectively accept the video pixel data for transmission to attached display devices.

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Номер записи: 51

16-08-2012 дата публикации

Liquid crystal display device and control method therefor

Номер: US20120206513A1

Автор: Tetsuya Ueno

Принадлежит: Sharp Corp

The present invention provides a liquid crystal display device including a multiple primary color panel capable of improving the display quality in the vicinity of a monochromatic color, and a control method therefor. The present invention provides a liquid crystal display device that performs display by input thereto of image signals for three colors from outside. The liquid crystal display device includes a liquid crystal display panel and a backlight. A plurality of pixels each including picture elements of four colors or more are formed in a display region of the liquid crystal display panel. Each pixel includes picture elements of three colors, provided with color filters having colors corresponding to the respective colors of the image signals, and at least one picture element of other color(s), provided with a color filter having a color corresponding to a color other than the colors of the image signals. The light emission intensity of the backlight can be controlled in accordance with image signals input. The light emission intensity of the backlight when a monochromatic color or a color close to a monochromatic color is displayed in the display region is greater than the light emission intensity when white is displayed in the display region.

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Номер записи: 52

23-08-2012 дата публикации

Display device

Номер: US20120212467A1

Автор: Yukihide Kohtoku

Принадлежит: Sharp Corp

A display device (liquid crystal display device 100 ) includes a display panel ( 10 ) (liquid crystal panel 10 ), light receiving sensors (first light receiving sensors 122 ), and an image changing section ( 250 ). A display region ( 10 a ) of the liquid crystal panel ( 10 ) has a plurality of pixels ( 30 ) located therein. The first light receiving sensors ( 122 ) receive external light directed to the liquid crystal panel ( 10 ), at a plurality of positions in the display region ( 10 a ). In the image changing section ( 250 ), a reference value is predefined for light receiving information (a 1 through d 1 ) obtained by the first light receiving sensors ( 122 ). When light receiving information (a 1 through d 1 ) exceeding the reference value is obtained by the first light receiving sensors ( 122 ), the image changing section ( 250 ) changes an image to be displayed on the display region ( 10 a ), based on the light receiving information (a 1 through d 1 ).

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Номер записи: 53

06-09-2012 дата публикации

Image processing apparatus

Номер: US20120223924A1

Автор: Kohji OHNISHI, Shizuka TAMURA, Takeo Matsumoto, Teruhiko Kamibayashi, Tomoyuki Fujimoto

Принадлежит: Denso Ten Ltd

An image processing apparatus corrects an input image based on a correction amount determined based on an illuminance, and adjusts a specifying value for specifying brightness of a backlight of a display based on the correction amount.

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Номер записи: 54

06-09-2012 дата публикации

High Dynamic Range Displays Using Filterless LCD(s) For Increasing Contrast And Resolution

Номер: US20120224121A1

Автор: John Gilbert

Принадлежит: Dolby Laboratories Licensing Corp

A display provides increased contrast and resolution via first LCD panel energized to generate an image and a second LCD panel configured to increase contrast of the image. The second panel is an LCD panel without color filters and is configured to increase contrast by decreasing black levels of dark portions of images using polarization rotation and filtration. The second LCD panel may have higher resolution than the first LCD panel. A half wave plate and/or film is placed in between the first and the second panel. The panels may be directly illuminated or edge lit, and may be globally or locally dimmed lights that may also include individual control of color intensities for each image or frame displayed.

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Номер записи: 55

13-09-2012 дата публикации

Method and system for remotely calibrating display of image data

Номер: US20120229526A1

Автор: Colin John Holmes, Monroe Milas Thomas, Pierre Joseph Lemire, Torin Arni TAERUM

Принадлежит: Calgary Scientific Inc

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.

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Номер записи: 56

20-09-2012 дата публикации

Display control apparatus

Номер: US20120235966A1

Автор: Toshio Tanaka

Принадлежит: Denso Ten Ltd

An image display system includes a light sensor operable to change a detection sensitivity. The light sensor outputs a signal according to an intensity of external light exerting an influence on a screen of a display apparatus and to the detection sensitivity. An illuminance acquisition part of a display control apparatus acquires illuminance by the external light based on the signal output from the light sensor. Moreover, a display adjuster adjusts a displaying state of the display apparatus in accordance with the illuminance by the external light acquired by the illuminance acquisition part. A sensitivity changer periodically alternates between a “low sensitivity” of the detection sensitivity and a “high sensitivity” of the detection sensitivity of the light sensor. Thus, even when changing significantly, the illuminance by the external light can be accurately and speedily acquired.

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Номер записи: 57

20-09-2012 дата публикации

Image display device, control method therefor, and image display system

Номер: US20120236044A1

Автор: Yoshiyuki Nagashima

Принадлежит: Canon Inc

Included are a backlight having a plurality of light emitting blocks, a display panel, a calibration unit which carries out calibration of the display panel based on a result of measurement of the brightness and chromaticity of the display panel, a first measuring unit which measures individual temperatures of the plurality of light emitting blocks, a setting unit which sets a patch image display area in a region of the display panel corresponding to a light emitting block of which the magnitude of a change in temperature within a predetermined period of time is smaller than a threshold value, and a generation unit which generates a patch image to be displayed in the patch image display area, wherein the calibration unit carries out the calibration based on the result of measurement by the first measuring unit in cases where the patch image is displayed in the patch image display area.

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Номер записи: 58

27-09-2012 дата публикации

Method and apparatus to support a self-refreshing display device coupled to a graphics controller

Номер: US20120242671A1

Автор: David Wyatt

Принадлежит: Nvidia Corp

A method and apparatus for supporting a self-refreshing display device coupled to a graphics controller are disclosed. A self-refreshing display device has a capability to drive the display based on video signals generated from a local frame buffer. A graphics controller coupled to the display device may optimally be placed in one or more power saving states when the display device is operating in a panel self-refresh mode. Data objects stored in a memory associated with the graphics controller may be aliased in another memory subsystem accessible to the operating system, graphical user interface, or applications executing in the system while the graphics controller is in a deep sleep state. The disclosed technique utilizes a virtual memory pointer, that may be updated in one or more virtual memory page tables to point to either the memory associated with the graphics controller or an alternate memory alias.

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Номер записи: 59

27-09-2012 дата публикации

Plasma display device and method for driving plasma display panel

Номер: US20120242721A1

Автор: Tomoyuki Saito

Принадлежит: Panasonic Corp

A loading phenomenon in a plasma display panel is reduced and the image display quality is improved. For this purpose, image signal processing circuit ( 41 ) includes a number-of-lit-cells calculating section ( 60 ) for calculating the number of lit cells, load value calculating section ( 61 ) for calculating the load value in each discharge cell based on the calculation result by number-of-lit-cells calculating section ( 60 ), correction gain calculating section ( 62 ) for calculating the correction gain of each discharge cell based on the calculation result by load value calculating section ( 61 ), pattern detecting section ( 63 ) for determining the presence or the absence of occurrence of a loading phenomenon in a display image, selecting circuit ( 64 ) as a correction gain changing section for changing the correction gain based on the determination result by pattern detecting section ( 63 ), and correcting section ( 69 ) for correcting an image signal based on the correction gain after the change.

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Номер записи: 60

27-09-2012 дата публикации

Dynamically configuring a video decoder cache for motion compensation

Номер: US20120243610A1

Автор: Rahul Saxena

Принадлежит: Individual

A video decoder cache used for motion compensation data may be dynamically reconfigured. In some embodiments, it may be reconfigured on picture or frame boundaries and in other embodiments it can be reconfigured on sequence boundaries. The cache may be flushed on each boundary to enable such reconfiguration.

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Номер записи: 61

11-10-2012 дата публикации

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

Номер: US20120256892A1

Автор: Chi-Ming Hung, Chih-Ming Ma, Jun-Lin Huang, Pei-Cheng Huang

Принадлежит: QUANTA COMPUTER INC

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.

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Номер записи: 62

18-10-2012 дата публикации

Display Device

Номер: US20120262424A1

Автор: Christopher Brown, Kaoru Yamamoto, Kohhei Tanaka, Yasuhiro Sugita

Принадлежит: Sharp Corp

A plurality of sensor pixel circuits each including two photodiodes, one accumulation node accumulating charge corresponding to an amount of light, and a read transistor having a control terminal connected to the accumulation node are arranged in a pixel region. In accordance with a clock signal, when a backlight is turned on, a transistor turns on, a current flows through the photodiode, and a potential at the accumulation node drops. When the backlight is turned off, a transistor turns on, a current flows through the photodiode, and the potential at the accumulation node rises. Sensitivity characteristics of the two photodiodes may be changed using the clock signal. The sensor pixel circuit described above is used for detecting a difference between an amount of light to be incident when the backlight is turned on and an amount of light to be incident when the backlight is turned off.

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Номер записи: 63

25-10-2012 дата публикации

Augmented reality extrapolation techniques

Номер: US20120268490A1

Автор: Benjamin J. Sugden

Принадлежит: Microsoft Corp

Augmented reality extrapolation techniques are described. In one or more implementations, an augmented-reality display is rendered based at least in part on a first basis that describes a likely orientation or position of at least a part of the computing device. The rendered augmented-reality display is updated based at least in part on data that describes a likely orientation or position of the part of the computing device that was assumed during the rendering of the augmented-reality display.

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Номер записи: 64

15-11-2012 дата публикации

Multi-touch input discrimination

Номер: US20120287074A1

Автор: Wayne Carl Westerman

Принадлежит: Individual

Techniques for identifying and discriminating between different types of contacts to a multi-touch touch-screen device are described. Illustrative contact types include fingertips, thumbs, palms and cheeks. By way of example, thumb contacts may be distinguished from fingertip contacts using a patch eccentricity parameter. In addition, by non-linearly deemphasizing pixels in a touch-surface image, a reliable means of distinguishing between large objects (e.g., palms) from smaller objects (e.g., fingertips, thumbs and a stylus) is described.

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Номер записи: 65

15-11-2012 дата публикации

Display device and display method

Номер: US20120287126A1

Автор: Atsushi Yoshida, Hideki Aiba

Принадлежит: JVCKenwood Corp

A display device includes a liquid crystal panel with video display lines, a display controller operable to have display data rendered on the liquid crystal panel, the display data including first field data of a video signal input, and second field data of the video signal as field data subsequent in temporal order and different in content from the first field data, a backlight unit disposed behind the liquid crystal panel and provided with light sources adapted to emit light for irradiation to respective regions on the liquid crystal panel sectioned in accordance with a scan direction, and a backlight controller operable to have the light sources transitioned between a light-out state and a light emitting state with a transition time shorter than a scan time of first field data and a scan time of second field data by the display controller.

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Номер записи: 66

15-11-2012 дата публикации

Method and apparatus for generating images using a color field sequential display

Номер: US20120287139A1

Автор: David Wyatt

Принадлежит: Nvidia Corp

One embodiment of the present invention sets forth a technique for generating and transmitting video frame data from a graphics processing unit (GPU) to a color field sequential display device. A frame buffer image comprising per-pixel packed color channels is transformed to a frame buffer image comprising regions corresponding to the color channels with vertical blanking regions inserted between color sub-field regions. Each region of the transformed frame buffer image is sequentially transmitted to the color field sequential display device for display of the corresponding color channel. Backlight illumination for each color channel is controlled by the GPU for temporal alignment with display of each color channel during a vertical blanking interval. The GPU may compensate an individual pixel's color channel value based on a corresponding previous color channel value in order to minimize crosstalk between neighboring color fields.

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Номер записи: 67

15-11-2012 дата публикации

Power saving field sequential color

Номер: US20120287142A1

Автор: Derek Leslie Knee, Rod G. Fleck

Принадлежит: Microsoft Corp

In embodiments of power saving field sequential color (FSC), an illumination source illuminates pixels of a displayable image by sequentially generating RGB (red, green, blue) components of a pixel in a timed sequence of field sequential color. The pixels of a displayable image may also include a white component derived from the RGB components. An illumination reduction algorithm is implemented to determine the highest RGB (or RGBW) components from any of the pixels of the displayable image. The highest RGB (or RGBW) components can be determined from any combination of the same or different pixels of the displayable image. The illumination reduction algorithm then divides each of the highest RGB (or RGBW) components by a maximum brightness value to generate respective RGB (or RGBW) component factors. A display controller then processes each pixel of the displayable image for display according to the RGB (or RGBW) component factors.

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Номер записи: 68

15-11-2012 дата публикации

Method and apparatus for improved subpixel rendering

Номер: US20120287148A1

Автор: Candice Hellen Brown Elliott

Принадлежит: Samsung Display Co Ltd

A display system with a subpixel renderer configured to subpixel render input image data having a first set of primary colors, the subpixel rendering performed according to an area resample filter, a color sharpening filter, and a metamer sharpening filter, so as to generate subpixel rendered output image data having a second set of primary colors.

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Номер записи: 69

15-11-2012 дата публикации

Plasma display device and method for driving plasma display panel

Номер: US20120287181A1

Автор: Jun Kamiyamaguchi, Masahiro Yamada

Принадлежит: Panasonic Corp

The image display quality of the plasma display apparatus is improved. For this purpose, the plasma display apparatus corrects the number of generated sustain pulses in each subfield using a first correction coefficient that is read from look-up table ( 62 ) in response to the all-cell light-emitting rate and the partial light-emitting rates and a common correction coefficient. The apparatus adds preset offset value OFST to the all-cell light-emitting rate, multiplies the addition result by the number of sustain pulses in each subfield, and calculates the sum total of the multiplication results in one field period to calculate an estimated value of the power consumption in one field period. The apparatus sets the common correction coefficient so that the estimated value of the power consumption in one field period before the correction using the first correction coefficient and the common correction coefficient is equivalent to that after the correction.

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Номер записи: 70

22-11-2012 дата публикации

Multi-functional active matrix liquid crystal displays

Номер: US20120293747A1

Автор: Gary D. Sharp, Michael G. Robinson

Принадлежит: RealD Inc

A direct view display provides a light modulating panel and a backlight including first and second sets of spectral emitters. The first set of spectral emitters generate a first light bundle and the second set of spectral emitters generate a second light bundle. Several modes of operation may be provided including (1) an advanced 2D mode, (2) an enhanced color gamut mode employing simultaneous illumination of the first and second set of spectral emitters, (3) a privacy screen mode, (4) a channel multiplexed mode, and (5) a stereoscopic image mode. The latter three modes utilize the first and second set of spectral emitters to alternately illuminate a portion of the light modulating panel. Images and representations generated by the direct view display operating in the latter three modes are viewed using appropriate eyewear having filters with passband characteristics to transmit the respective light bundle.

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Номер записи: 71

29-11-2012 дата публикации

Accessing window pixel data for application sharing

Номер: US20120304077A1

Автор: Kevin Solie, Raymond R. Hornback, JR.

Принадлежит: International Business Machines Corp

Screen sharing in which image pixel data operable to display one or more user interface windows associated with at least one shared application is retrieved from a memory. The retrieving excludes image pixel data operable to display at least one other display object currently contained in a user interface of said computer. The retrieved image pixel data is combined into a shared image.

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Номер записи: 72

13-12-2012 дата публикации

Light emitting device assembly, surface light source device, liquid crystal display device assembly, and light output member

Номер: US20120314424A1

Автор: Shingo Ohkawa

Принадлежит: Sony Corp

A light emitting device assembly includes: a light emitting device; and a light output member provided on the light emitting element and having an upper surface on which a curved part that outputs light from the light emitting device is provided, wherein a value of a x coordinate of a curved part center axis is a positive value, a locus of an edge of a curved part forms a circle or oval around the curved part center axis, light on a Z-axis output from an origin is output from the curved part at an angle θ 0 (θ 0 >0) formed with the Z-axis within a XZ-plane, and function F(φ,Δφ) expressed by F (φ,Δφ)=(Δθ + −Δθ − (1) monotonously increases, takes the maximum value at φ=φ 0 (<0), and then, monotonously decreases as a value of φ increases from the minimum value.

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Номер записи: 73

20-12-2012 дата публикации

Direct-view mems display devices and methods for generating images thereon

Номер: US20120320113A1

Автор: Abraham Mcallister, Jignesh Gandhi, Nesbitt W. Hagood, Iv, Rainer M. Malzbender, Stephen R. Lewis

Принадлежит: Pixtronix Inc

A direct-view display includes an array of MEMS light modulators and a control matrix formed on a transparent substrate, where each light modulator can be driven into at least two states, and a controller for controlling the states of each light modulator in the array. The control matrix transmits data and actuation voltages to the array. The controller includes an input, a processor, a memory, and an output. The input receives image data encoding an image frame for display. The processor derives a plurality of sub-frame data sets from the image data, where each sub-frame data set indicates desired states of light modulators in multiple rows and multiple columns of the array. The memory stores the plurality of sub-frame data sets. The output outputs the plurality of sub-frame data sets according to an output sequence to drive light modulators into the states indicated in the sub-frame data sets.

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Номер записи: 74

27-12-2012 дата публикации

Display device and method of driving the same

Номер: US20120327066A1

Автор: Toshiyuki Kato

Принадлежит: Panasonic Corp

A display device includes an organic EL display unit including plural pixels, a variable-voltage source which supplies a positive electrode supply potential and a negative electrode supply potential to the display organic EL display unit, and an arithmetic circuit which measures an anode potential and a cathode potential of a representative pixel. The variable-voltage source regulates the positive electrode supply potential with respect to the negative electrode supply potential, according to at least the potential difference between the negative electrode supply potential of the variable-voltage source and the cathode potential of the representative pixel, and supply the regulated positive electrode supply potential to the organic EL display unit.

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Номер записи: 75

03-01-2013 дата публикации

Ray tracing system architectures and methods

Номер: US20130002672A1

Автор: James Alexander Mccombe, Luke Tilman Peterson, Ryan R. Salsbury, Steven John Clohset

Принадлежит: Luke Tilman Peterson, McCombe James Alexander, Salsbury Ryan R, Steven John Clohset

Aspects comprise systems implementing 3-D graphics processing functionality in a multiprocessing system. Control flow structures are used in scheduling instances of computation in the multiprocessing system, where different points in the control flow structure serve as points where deferral of some instances of computation can be performed in favor of scheduling other instances of computation. In some examples, the control flow structure identifies particular tasks, such as intersection testing of a particular portion of an acceleration structure, and a particular element of shading code. In some examples, the aspects are used in 3-D graphics processing systems that can perform ray tracing based rendering.

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Номер записи: 76

17-01-2013 дата публикации

Reflective display device with auxiliary display

Номер: US20130016079A1

Автор: Chiu-Hsiung Lin, Chung-Wei Wang, Kuan-Hong Hsieh

Принадлежит: Hon Hai Precision Industry Co Ltd

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.

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Номер записи: 77

17-01-2013 дата публикации

Display device and method of driving display device

Номер: US20130016091A1

Автор: Kouhei EBISUNO, Toshiyuki Kato

Принадлежит: Panasonic Corp

A display device includes: a reference voltage setting unit, an organic EL display unit; a monitor wire and sample-and-hold circuit which detect at least one of a high-side potential and a low-side potential applied to at least one pixel inside the organic EL display unit; and a variable-voltage source which regulates at least one of a high-side output potential and a low-side output potential outputted from the reference voltage setting unit. The monitor wire and the sample-and-hold circuit perform the detection of the at least one of the high-side potential and the low-side potential in at least part of an image display period, and the monitor wire and the sample-and-hold circuit do not perform the detection of the at least one of the high-side potential and the low-side potential in a black display period.

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Номер записи: 78

24-01-2013 дата публикации

Electronic device and method for adjusting backlight brightness

Номер: US20130021308A1

Автор: Chi-Sheng Ge

Принадлежит: Hon Hai Precision Industry Co Ltd

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.

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Номер записи: 79

24-01-2013 дата публикации

Picture loading method and terminal

Номер: US20130024869A1

Автор: Fei Zhang

Принадлежит: ZTE Corp

The disclosure provides a picture loading method and a terminal. The method includes determining a number of pictures that can be loaded according to an available memory space, acquiring, from a plurality of pictures, the determined number of pictures beginning at a starting position, and assigning resources for the acquired pictures and preloading the acquired pictures using the resources. The disclosure also provides a picture loading terminal.

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Номер записи: 80

31-01-2013 дата публикации

Video processor

Номер: US20130028337A1

Автор: Yuuki NISHIO

Принадлежит: Panasonic Corp

A video processor receives original video data, an original synchronization signal, and an original data valid region signal from a video signal source, supplements insufficient part of the original video data relative to a predetermined valid pixel region, and outputs new video data having the predetermined valid pixel region and a new data valid region signal indicating the predetermined valid pixel region. The video processor includes a valid position regeneration controller delaying at least one of the original video data or the original synchronization signal to match positions of color-difference signals in the original video data to positions of color-difference signals in the new video data in determining based on the original synchronization signal and the original data valid region signal that the color-difference signals in the new video data are displayed while being replaced with each other; and a controller controlling operation of the valid position regeneration controller.

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Номер записи: 81

07-02-2013 дата публикации

Techniques for Controlling Power Consumption of a System

Номер: US20130033510A1

Автор: Lingyun Dou, Yaodong LI

Принадлежит: Intel Corp

A chipset can detect whether a relevant portion of the system frame buffer has been updated and can send an interrupt to the display driver to invoke a registered hardware watchpoint routine to inform display driver of the updating. If the display is currently in display self refresh (DSR) state, display driver wakes up display controller components and requests to transmit a MIPI compatible DCS command to request copying of the updated data from system frame buffer into an on-panel frame buffer or a frame buffer associated with the display. The display driver can power-down graphics system components and enter DSR state again to save power.

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Номер записи: 82

14-02-2013 дата публикации

Image Display Device and Light Emission Timing Control Method

Номер: US20130038223A1

Автор: Kazuhiko Aoki

Принадлежит: NEC Corp

An image display device includes: excitation light source ( 5 ), fluorescent screen ( 6 ) provided with a plurality of phosphor regions ( 61, 62, 63 ) that are arranged periodically in the in-plane direction, the regions between phosphor regions being retroreflective regions ( 64 ) that bend incident light in the direction opposite the direction of incidence of the light; scanning means ( 4 ) that scans fluorescent screen ( 6 ) with a light beam from excitation light source ( 5 ); optical detection means ( 2, 3 ) that detects retroreflective light ( 7 ) that is reflected by retroreflective regions ( 64 ); and control means ( 1 ) that causes scanning by scanning means ( 4 ), detects boundaries between each phosphor region ( 61, 62, 63 ) and retroreflective region ( 64 ) on fluorescent screen ( 6 ) based on output of optical detection means ( 2, 3 ), and controls the light emission timing of excitation light source ( 5 ) based on the detected boundaries.

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Номер записи: 83

14-02-2013 дата публикации

Crowd-Sourced Video Rendering System

Номер: US20130038618A1

Автор: Julian Michael Urbach

Принадлежит: Otoy Inc

In one embodiment, a method includes distributing rendering tasks to connected client nodes having capable graphics processing units by transmitting viewport state data objects and a unique spatial location to each of the clients, performing path tracing at each of the clients from the starting point of their unique spatial locations, and transmitting their rendered output back to the server. The server generates a composite rendered output from the individual rendered outputs received by the participating clients, and then transmits the composite to all connected clients for display. Thus, as the number of client nodes increases, the scene is rendered more rapidly and at higher quality. In particular embodiments, the rendered output is a lightmap representing the diffuse lighting for the scene, and each client may render the scene's specular highlights from its own viewport.

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Номер записи: 84

14-02-2013 дата публикации

Display light leakage

Номер: US20130038740A1

Автор: Daniel Ding, EnkhAmgalan Dorjgotov, Kuan Ying Lin

Принадлежит: Apple Inc

Embodiments include systems and methods for objectively grading/rating a display. One embodiment may take the form of a method for grading display quality including capturing an image of the display and computing first and second parameter values from the captured image. The method also includes comparing the first parameter value against a threshold and, if the first parameter value exceeds the threshold, computing a grade wherein the second parameter is given a first weighting. If, however, the first parameter value is below the threshold, the method includes computing a grade wherein the second parameter is given a second weighting which is greater than the first weighting.

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Номер записи: 85

28-02-2013 дата публикации

Hybrid video and graphics system with automatic content detection process, and other circuits, processes, and systems

Номер: US20130050254A1

Автор: Jian Wang, Jonathan Edward Hunter, Sriram Narayanan, Thanh Thien Tran

Принадлежит: Texas Instruments Inc

A computing device ( 300 ) includes a storage ( 325 ) that over time is operable to include video and graphics content and the storage has a first set of instructions representing lossy video compression ( 130 ) and a second set of instructions representing lossless compression ( 120 ); and a processor ( 320 ) coupled with said storage ( 325 ), and said processor ( 320 ) operable to electronically analyze ( 110 ) at least a portion of the content for motion based on magnitudes of motion vectors and, on detection of a significant amount of motion, further operable to activate the first set of instructions ( 130 ) to compress at least the motion video, and otherwise to activate the second set of instructions representing lossless compression ( 120 ) to compress at least the graphics. Other devices, systems, and processes are disclosed.

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Номер записи: 86

07-03-2013 дата публикации

Display device and driving method thereof

Номер: US20130057565A1

Автор: Jae-Suk Choi, Jung Hwan Cho, Yong-Jun Choi

Принадлежит: Samsung Display Co Ltd

In order to reduce power consumption of a display device when a still picture is to be displayed, a display area of the device is subdivided into a plurality of Still Picture Refresh Groups (SPRGoP's), with each SPRGoP consisting of n pixels. All n of the pixels are charged in every one of sequential frames when a motion picture mode is in effect. Less than all of the n pixels of each SPRGoP are refreshed in each frame of an N-frame refresh cycle when a still picture mode is in effect. Different schemes for cycling through the n pixels of each SPRGoP are disclosed.

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Номер записи: 87

07-03-2013 дата публикации

Apparatus and method for processing a signal

Номер: US20130058436A1

Автор: Sang-Woo Kim, Yoon-Kyung Choi

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A signal processing apparatus stores previously determined function values using parameters through a processing unit, and outputs the stored function data using subsequently input data as an address.

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Номер записи: 88

21-03-2013 дата публикации

Method and system for dynamic feed-forward power control in a projector system

Номер: US20130070209A1

Автор: Michel Cantelobre

Принадлежит: National Semiconductor Corp

A projection system for projecting an output image. The projection system comprises a plurality of laser diodes, each laser diode operable to generate a light beam having a selected intensity in response to a control voltage and a control current and combiner optics for combining light beams received from the plurality of laser diodes to generate an output light beam. A MEMS mirror module receives the output light beam from the combiner optics and generates a scanning light beam that forms the output image on a projection surface. A controller adjusts the control voltage associated with each of the plurality of laser diodes for a first line of pixel data in response to a determination of a level of contrast associated with the first line of pixel data.

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Номер записи: 89

28-03-2013 дата публикации

Electronic device

Номер: US20130076249A1

Автор: Cheng-Hao Lee, Kai-Cheng Chuang

Принадлежит: E Ink Holdings Inc

An electronic device including a body and a light source module is provided. The body has a side on which an unstable display is disposed and another side on which a bi-stable display is disposed. The light source module is arranged inside the body and configured to provide a light source to one or none of the unstable display and the bi-stable display.

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Номер записи: 90

04-04-2013 дата публикации

Reflective and transflective operation modes for a display device

Номер: US20130082607A1

Автор: Je Hong Kim, Jignesh Gandhi, Mark Douglas Halfman, Nesbitt W. Hagood, Iv

Принадлежит: Pixtronix Inc

A direct-view display apparatus includes a transparent substrate, an internal light source, a plurality of light modulators coupled to the transparent substrate, and a controller for controlling the states of the plurality of light modulators and the internal light source. The controller is configured to cause the display to transition from one of a transmissive, reflective and transflective mode, to a second of said modes.

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Номер записи: 91

04-04-2013 дата публикации

MOBILE TERMINAL AND DISPLAY CONTROL METHOD

Номер: US20130082902A1

Автор: Zhou Yifeng

Принадлежит: NEC Corporation

A mobile terminal is provided as a solution to a problem in which ease use is low. Display part A is provided on casing A, while display part B is provided on casing B. Detector detects the attitude of at least one of casings A and B and the opening/closing angle between casings A and B. Execution section executes an application. Controller displays a view of the application on at least one of display parts A and B in a display style according to detection results detected by detector 1. A mobile terminal with two casings connected so as to be openable from and closable to each other , the mobile terminal comprising:two display parts respectively provided on the two casings;a detector that detects an attitude of at least one of the two casings and an opening/closing angle between the casings;an execution section capable of executing a first application; anda controller that, when said execution section executes the first application, displays a view of the first application on said display parts in a display style according to a detection result detected by said detector.2. The mobile terminal according to claim 1 , wherein said controller obtains claim 1 , based on the detection result detected by said detector claim 1 , an orientation and an inclination of an imaginary plane parallel to an opening/closing axis between the casings and passing through end sides of the casings remote from the opening/closing axis claim 1 , and adjusts the display style according to the orientation and the inclination of the imaginary plane.3. The mobile terminal according to claim 2 , wherein claim 2 , when a first inclination amount that is the amount of inclination of a first direction on the imaginary plane perpendicular to the opening/closing axis with respect to an initial state of the first direction is equal to or larger than a first predetermined value claim 2 , said controller displays the view on one of the display parts provided on the casing on the side toward which the ...

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Номер записи: 92

11-04-2013 дата публикации

White point uniformity techniques for displays

Номер: US20130088522A1

Автор: David Andrew Doyle, Jean-Pierre Simon Guillou, Joshua Grey WURZEL, Ming Xu, Shawn Robert Gettemy

Принадлежит: Apple Inc

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.

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Номер записи: 93

11-04-2013 дата публикации

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

Номер: US20130088534A1

Автор: Akira Nakajima, Yoshio Arai

Принадлежит: Seiko Epson Corp

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.

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Номер записи: 94

18-04-2013 дата публикации

Image display device and image display method

Номер: US20130093802A1

Автор: Yuhji Tanaka

Принадлежит: Individual

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.

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Номер записи: 95

02-05-2013 дата публикации

Integrated circuit for display apparatus and method thereof

Номер: US20130106872A1

Автор: Cheng Lo, Chia-Chu HO, Hsi-Cheng Yeh, Hsi-Chieh PENG, Jih-Hsin HUANG

Принадлежит: HTC Corp

A display apparatus, an integrated circuit and method thereof are disclosed. The display apparatus includes a frame buffer, a controller circuit, and a display driver circuit. The frame buffer is configured to retain a plurality of image frames to be displayed. The controller circuit, coupled to the frame buffer, is configured to determine whether a change in the image frames has occurred and whether a refresh time is expired. The display driver circuit, operatively coupled to the frame buffer and adapted to couple to an active display device, is configured to receive the image frames to be displayed from the frame buffer and dynamically refreshing the active display device when the change is determined or when a refresh time is expired.

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Номер записи: 96

02-05-2013 дата публикации

Display controller and display device including the same

Номер: US20130106883A1

Автор: Jong-Hun Han, Kyong-Ho Cho

Принадлежит: SAMSUNG ELECTRONICS CO LTD

A display controller is provided that includes a processing unit configured to process input data, a memory unit configured to store some of the processed input data before a transition signal is enabled, a memory management unit configured to map consecutive virtual addresses of an image displayed on a display panel to physical addresses of data stored in the memory unit, and a control unit configured to control the processing unit and the memory management unit in response to a control signal and configured to provide a range of virtual addresses designated by the transition signal in response to enablement of the transition signal such that the image is displayed on the display panel.

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Номер записи: 97

02-05-2013 дата публикации

Area active backlight with spatiotemporal backlight

Номер: US20130107164A1

Автор: Lieven Verslegers, Xiao-Fan Feng

Принадлежит: Sharp Laboratories of America Inc

A liquid crystal display includes a backlight that provides light and selectively modifies the transmission of light from the backlight to the front of the display. The backlight includes a plurality of spaced apart light waveguides and a plurality of selection elements associated with the light waveguides that change the characteristics of the material of the light waveguides to selectively direct the transmission of light toward the liquid crystal layer. The combination of the waveguides and the selection elements provide light to the front of the display in a non-uniform temporal manner and a non-uniform spatial manner during a frame.

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Номер записи: 98

09-05-2013 дата публикации

Display device, video processing device and video display method

Номер: US20130113845A1

Автор: Haruhisa Inoue

Принадлежит: Mitsubishi Electric Corp

A normal video data acquisition section acquires, as normal video data, a plurality of pieces of video data respectively assigned to a plurality of light sources in normal display from an input video signal A computing section performs a predetermined computation on the plurality of pieces of video data included in the normal video data to generate auxiliary video data used in place of the normal video data in auxiliary display. A selection section performs, in accordance with an instruction from a control section, a selection process for providing any one of the normal video data and the auxiliary video data to a modulation driving section.

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Номер записи: 99

16-05-2013 дата публикации

Display driver

Номер: US20130120480A1

Автор: Goro Sakamaki, Naoki Takada, Yasuyuki Kudo, Yoshiki Kurokawa

Принадлежит: Renesas Electronics Corp

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 %.

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Номер записи: 100