Настройки

Укажите год
-

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

Подробнее
-

Мониторинг СМИ

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

Подробнее

Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Ведите корректный номера.
Укажите год
Укажите год
Применить Всего найдено 15681. Отображено 100.
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.

Подробнее
Номер записи: 1
02-02-2012 дата публикации

Display device with image capturing function

Номер: US20120026140A1
Автор: Ping-Yang Chuang
Принадлежит: Hon Hai Precision Industry Co Ltd

A display device with an image capturing function includes a power supply and a thin film transistor liquid crystal display (TFT-LCD) and a processing unit. The processing unit includes a capturing module and a control module. The capturing module is placed on a back side of the TFT-LCD, and captures images of an object on a front side of the TFT-LCD. The control module is used for controlling the power supply to switch the TFT-LCD between a light permeating state and a light semi-permeating state. The control module is further used for controlling a capturing rate of the capturing module to be at least an integer multiple of a switch rate of the TFT-LCD between the light permeating state and the light semi-permeating state.

Подробнее
Номер записи: 2
02-02-2012 дата публикации

Three-dimensional display and driving method thereof

Номер: US20120026204A1
Автор: Byung-Ki Chun, Geun-Young Jeong, Jong-Woong Park, Joo-hyung Lee, Yong-Seok Choi
Принадлежит: Samsung Mobile Display Co Ltd

A three-dimensional (3D) display is disclosed. One aspect includes: a display unit including a plurality of pixels and a slit barrier selectively shielding light irradiated from the display unit. The display unit additionally includes a controller controlling the turn-on and turn-off of the slit barrier and generating a first back light compensation signal compensating the reduction of the luminance of the display unit when the slit barrier is turned off and a second back light compensation signal compensating the reduction of the luminance of the display when the slit barrier is turned on to compensate the luminance reduction by the slit barrier. According to at least one aspect of the 3D display using a slit barrier scheme, it is possible to minimize the deterioration of luminance by a slit barrier.

Подробнее
Номер записи: 3
16-02-2012 дата публикации

Low-cost large-screen wide-angle fast-response liquid crystal display apparatus

Номер: US20120038875A1
Автор: SAKAE Tanaka, Toshiyuki Samejima
Принадлежит: Mikuni Electron Co Ltd

A super large wide-angle high-speed response liquid crystal display apparatus manufactured by using a photolithographic procedure for three times. The invention adopts a halftone exposure technology to form a gate electrode, a common electrode, a pixel electrode and a contact pad, and then uses the halftone exposure technology to form a silicon (Si) island and a contact hole, and a general exposure technology to form a source electrode, a drain electrode and an orientation control electrode. A passivation layer uses a masking deposition method. A film is formed by using a P-CVD method, or a protective area is formed at a local area by using an ink coating method or spray method, and a TFT array substrate used for the super large wide-angle high-speed response liquid crystal display apparatus manufactured by using a photolithographic procedure for three times can be produced.

Подробнее
Номер записи: 4
01-03-2012 дата публикации

Source driver having amplifiers integrated therein

Номер: US20120049896A1
Автор: Chun-fan Chung, Yu-Hsi Ho, Yung-Hsu LIN
Принадлежит: AU OPTRONICS CORP

A source driver includes at least one source driving unit and a voltage source generation circuit. The voltage source generation circuit is used for generating a first voltage provided for the at least one source driving unit. The voltage source generation circuit includes a first amplifier integrated in a source driving unit of the at least one source driving unit. The first voltage is provided to the at least one source driving unit.

Подробнее
Номер записи: 5
01-03-2012 дата публикации

Liquid crystal display system and pixel-charge delay circuit thereof

Номер: US20120050247A1
Автор: Chao-Min Lee, Chia-Yi Lu
Принадлежит: Chunghwa Picture Tubes Ltd

A liquid crystal display system for improving display color mismatch utilizes a pixel-charge delay circuit to generate a new latch-data signal for a source driver of the liquid crystal display system according to an output-enable signal and a latch-data signal generated by a timing control circuit of the liquid crystal display system. Therefore, when the source driver charges a pixel on an mth gate line, a switch corresponding to a pixel on an (m-1)th gate line is already completely turned off.

Подробнее
Номер записи: 6
15-03-2012 дата публикации

Display device

Номер: US20120062529A1
Автор: Jun Koyama
Принадлежит: Semiconductor Energy Laboratory Co Ltd

Provided is to secure a data-writing period to a source line and reduce the number of the IC chips used. N image data (e.g., three image data, RGB) are sequentially input to one input terminal. Three switches, three first memory elements, three transfer switches, three second memory elements, and three buffers are connected in parallel to the input terminal. The three switches are turned on respectively. RGB image data are held in the three respective first memory elements. In a selection period of a gate line of an (m−1)-th row, image data of an m-th row are written to the first memory elements. When the three transfer switches are turned on in a selection period of a gate line of an m-th row, the image data are transferred to and held in the second memory elements. Then, the image data are output to each source line through each buffer.

Подробнее
Номер записи: 7
22-03-2012 дата публикации

Active matrix substrate, liquid crystal panel, liquid crystal display device, and television receiver

Номер: US20120068916A1
Автор: Toshihide Tsubata
Принадлежит: Sharp Corp

Provided is an active matrix substrate for use in a liquid crystal display device in which two scan signal lines ( 16 i and 16 j ) are scanned simultaneously; pixel regions including two pixel electrodes each are arranged in the row and column directions when the column direction is the scanning direction; one scan signal line is provided for one pixel region row; and a shielding conductive body ( 41 p ) is disposed to cover the gap between two adjacent pixel electrodes ( 17 ib and 17 ja ), one of which is a pixel electrode included in a given pixel region ( 101 ) and the other is a pixel electrode included in a pixel region ( 102 ) adjacent to said given pixel region ( 101 ) on the downstream side of the scanning direction. By using the present active matrix substrate, the display quality of a liquid crystal display device in which two scan signal lines are selected simultaneously can be improved.

Подробнее
Номер записи: 8
22-03-2012 дата публикации

Image display device and transmission signal control method to be used in same

Номер: US20120068977A1
Автор: Kouichi Ooga
Принадлежит: NLT Technologeies Ltd

An image display device and a transmission signal control method to be used in same and more particularly to the image display device and the transmission signal control method that can be suitably used when transmission wirings for data signal based on a video signal become complicated due to configurations of a large-sized and high-definition image display device.

Подробнее
Номер записи: 9
22-03-2012 дата публикации

Dynamic gamma control method for lcd

Номер: US20120069044A1
Автор: Chin-Hung Hsu, Feng-Ting Pai, Ming-Lin Lee
Принадлежит: Hannstar Display Corp

A dynamic gamma control method for an LCD is provided. The LCD displays a present frame by a plurality of gamma reference voltages and the present frame includes an R-pixel data sum, a G-pixel data sum and a B-pixel data sum which are obtained by respectively adding all R-pixel data, all G-pixel data and all B-pixel data of at least one pixel of the present frame. The method includes steps of: weighting the R-pixel data sum, the G-pixel data sum and the B-pixel data sum with a first, a second and a third parameters respectively and adding them up to obtain a gamma indication value, and choosing a suitable one from the plurality of gamma reference voltages to display the present frame thereby if the gamma indication value is equal to a gamma reference value formed by adding the first, the second and the third parameters up.

Подробнее
Номер записи: 10
22-03-2012 дата публикации

Offset cancel output circuit of source driver for driving liquid crystal display

Номер: US20120069058A1
Автор: Hiroyoshi Ichikura
Принадлежит: Oki Semiconductor Co Ltd

An offset cancel output circuit of source drivers for driving liquid crystal displays which is capable of appropriately cancelling out an offset voltage from an output amplifier to thereby prevent degradation in display quality. The offset cancel output circuit includes an operational amplifier with a non-inverted input port to which a reference voltage is applied, and an input capacitor and an output capacitor with each one end thereof connected to an inverted input port of the operational amplifier. The offset cancel output circuit further includes a switching element circuit which has a first field effect transistor connected between the inverted input port and an output port of the operational amplifier and controlled to turn on during a reset operation. During the reset operation and the normal output operation, a first potential equal to the reference voltage is applied to the substrate of the first field effect transistor.

Подробнее
Номер записи: 11
12-04-2012 дата публикации

Driving circuit and method for driving a display

Номер: US20120086677A1
Автор: Chun-fan Chung, Yu-Hsi Ho, Yung-Shu Lin
Принадлежит: AU OPTRONICS CORP

In one aspect of the invention, a method for driving a display includes the steps of processing input image signals into pixel signals associated with the pixel matrix and grayscales of the display, generating a polarity control signal POL, and determining transmitting paths of the pixel signals according to the polarity control signal POL, and writing the pixel signals into the pixel matrix of the display along the determined transmitting paths.

Подробнее
Номер записи: 12
12-04-2012 дата публикации

Driving apparatus and display divice including the same

Номер: US20120086681A1
Автор: Jung Hong Ahn, Sang-Hoon Lee, Sung Kyun KIM
Принадлежит: MC Tech Co Ltd

A liquid crystal display includes a plurality of driving apparatuses one-chipped by including a signal controller controlling a data driver in the data driver applying data voltage to the corresponding data line. Each of the plurality of driving apparatuses includes a first signal terminal and a second signal terminal. The first signal terminal outputs control data for controlling image display to an adjacent signal controller in a first direction for a first period and receives a mode detection signal for determining a final operation mode from the adjacent signal controller in the first direction for a second period after the first period. The second signal terminal outputs the mode detection signal to the adjacent signal controller in a second direction different from the first direction for the first period and receives the control data from the adjacent signal controller in the second direction for the second period.

Подробнее
Номер записи: 13
19-04-2012 дата публикации

Low-cost large-screen wide-angle fast-response liquid crystal display apparatus

Номер: US20120094416A1
Автор: SAKAE Tanaka, Toshiyuki Samejima
Принадлежит: Mikuni Electron Co Ltd

A method of fabricating MVA active matrix substrate, and said substrate constituting an active matrix display device, characterized in that: a photolithographic procedure is performed three times for the manufacture: forming a gate electrode, a pixel electrode, a common electrode and a contact pad in said pixel electrode, forming a separate thin film semiconductor layer component, and a contact hole,forming a source electrode, a drain electrode and an orientation control electrode such that after an ohmic contact layer of a channel portion of said thin film transistor is dry etched, a partial film of a passivation layer is formed by a silicon nitride film by using a mask deposition method is provided.

Подробнее
Номер записи: 14
10-05-2012 дата публикации

Display device and display method

Номер: US20120113319A1
Автор: Atsuhiro Chiba, Sho Sakamoto, Tetsuyuki Yoshida, Yoshihisa Sato, Yoshiki Okamoto
Принадлежит: Sony Corp

A display device includes: a display unit including plural display sections divided in a first direction and performing line sequential scanning in the first direction; and an interpolation picture generation unit generating an interpolation picture in accordance with a timing at which each display section is scanned based on supplied frame pictures, wherein the display unit displays the interpolation picture corresponding to the display section in each display section.

Подробнее
Номер записи: 15
10-05-2012 дата публикации

Method for manufacturing liquid crystal display device

Номер: US20120113379A1
Автор: Kazunari Tomizawa, Tomohiko Mori, Yuichi Yoshida
Принадлежит: Sharp Corp

A liquid crystal display device ( 100 ) according to the present invention comprises the steps of: providing a liquid crystal display panel ( 200 ), which includes an active-matrix substrate, a counter substrate, and a vertical alignment liquid crystal layer interposed between the active-matrix substrate and the counter substrate; if an achromatic color should be represented, obtaining the chromaticity of the liquid crystal display panel ( 200 ) when viewed straight on with respect to each grayscale level and determining a range in which the chromaticity of the liquid crystal display panel ( 200 ) when viewed obliquely is adjustable by changing the luminances of respective blue subpixels belonging to the two pixels within their adjustable range; and setting the luminances of the blue subpixels so that the chromaticity of the liquid crystal display panel when viewed obliquely becomes as close to the chromaticity of the liquid crystal display panel when viewed straight on as possible within the adjustable range with respect to at least a part of the entire range of the grayscale levels.

Подробнее
Номер записи: 16
24-05-2012 дата публикации

Liquid Crystal Display and Driving Method Thereof

Номер: US20120127147A1
Автор: Jin-Wook Yang, Sang-Jae Yeo
Принадлежит: Samsung Mobile Display Co Ltd

A liquid crystal display having: a liquid crystal display panel comprising a plurality of pixels; a data driver applying a data voltage to a plurality of data lines connected to the plurality of pixels; an initial voltage driver applying an initial voltage to the plurality of data lines before the data voltage is applied; and a boost driver applying a boost voltage to a plurality of boost lines connected to the plurality of pixels and boosting voltages of the plurality of pixels to which the data voltage is applied. Crosstalk caused by noise generated in a boost line can be reduced by coupling with a data line, and an ALS driving scheme can be applied to a liquid crystal display having high resolution.

Подробнее
Номер записи: 17
24-05-2012 дата публикации

Method for Compensating Data and Display Apparatus for Performing the Method

Номер: US20120127191A1
Автор: Bong-im Park, Byung-Kil Jeon, Nam-Gon Choi
Принадлежит: Individual

A method of compensating data uses a look-up table divided into a first area, a second area and a boundary area between the first and second areas defined by a first previous reference value, a second previous reference value greater than the first previous reference value, a first current reference value and a second current reference value less than the first current reference value. A compensation data of a current frame is generated based on to which one of the first, second and boundary areas grayscale data of previous and current frames belongs.

Подробнее
Номер записи: 18
24-05-2012 дата публикации

Backlight module driving system and driving method thereof

Номер: US20120127212A1
Автор: Bi-Hsien Chen, Chien-Yang Chen, Chun-Chieh Chiu, Shin-Chang Lin, Tien-Yung Huang
Принадлежит: Chunghwa Picture Tubes Ltd

A backlight module driving system and a driving method thereof are applied to a Liquid Crystal Display (LCD). In the LCD, a timing controller obtains a three-dimensional (3D) image signal provided by a graphics processor, generates a Liquid Crystal (LC) driving control signal, and generates a corresponding light adjusting signal according to a data writing time and a Vertical Blanking Interval (VBI) time of the LC driving control signal. A backlight driver obtains and analyzes the light adjusting signal, so as to disable a backlight module during the data writing time, and enable the backlight module during the VBI time.

Подробнее
Номер записи: 19
24-05-2012 дата публикации

Display device and electronic device using the same

Номер: US20120127215A1
Автор: Keitaro Yamashita
Принадлежит: Chimei Innolux Corp

A display device where a memory circuit is installed into each pixel without generating flicker, including a plurality of pixels arranged in a matrix, wherein each pixel has a light-transmissive element controlling the amount of transmissive light in response to a voltage difference between a first electrode and a second electrode, a memory circuit storing the voltage level of the first electrode, and a controller. In the case where the first electrode has a positive voltage level with respect to the second electrode at a refreshing timing, the controller makes the memory circuit store the voltage level of the first electrode, applies a first predetermined voltage to the second electrode to increase the voltage level of the first electrode by the first predetermined voltage, and discharges the first electrode so that the first electrode has a negative voltage level with respect to the second electrode.

Подробнее
Номер записи: 20
31-05-2012 дата публикации

Drive device for liquid crystal display panel

Номер: US20120133577A1
Автор: Kenji Gondo
Принадлежит: Kyocera Display Corp

A drive device for driving a liquid crystal display panel by column inversion driving, whereby power consumption is further reduced. In an output buffer 251 to apply a voltage to source wirings, in a prescribed period after initiation of driving at one frame, a bias circuit 262 gives a bias voltage to lower the driving ability of an amplifier 261 , whereby a first switch 263 becomes an open state and a second switch 264 becomes a closed state. Upon termination of the prescribed period, the first switch 263 becomes a closed state and the second switch 264 becomes an open state, whereby a source wiring is driven by a voltage signal from a D-A converter.

Подробнее
Номер записи: 21
31-05-2012 дата публикации

Method for driving cholesteric liquid crystal display device

Номер: US20120133625A1
Автор: Bao-Sian Ciou, Chun-Yu Shen, Huai-An Li, Sheng-Fa Liu, Yu-Hsien Chen
Принадлежит: Chunghwa Picture Tubes Ltd

A method for driving a cholesteric liquid crystal display device is disclosed. The cholesteric liquid crystal display device includes a plurality of pixels. The method includes steps below. In a first duration, a first square wave is provided for the pixels. The first square wave has an amplitude of a first value. In a second duration, a second square wave is provided for each one of the pixels according to a required gray level of each one of the pixels. The second square wave has an amplitude of a second value. The second value is different from the first value. The first square wave and the second square wave are continuously provided. The method for driving the cholesteric liquid crystal display device according to the present invention is capable of displaying a motion picture and decreasing driving voltages.

Подробнее
Номер записи: 22
31-05-2012 дата публикации

Liquid Crystal Display Device and Driving Method Thereof

Номер: US20120133635A1
Автор: Ha Young Ji, Jin Sung Kim, Min Ki Kim
Принадлежит: LG Display Co Ltd

An LCD device and a driving method thereof are disclosed. The LCD device includes a data driver, a detection unit, and a power mode control option generation unit. The data driver controls a consumption power of an output buffer which outputs an image data signal to a liquid crystal display panel. The detection unit detects a low power driving mode interval for driving the data driver at a first consumption power. The power mode control option generation unit transfers a second power mode control option to the data driver during an interval other than the low power driving mode interval, and transfers a first power mode control option to the data driver during the low power driving mode interval.

Подробнее
Номер записи: 23
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.

Подробнее
Номер записи: 24
31-05-2012 дата публикации

Source line driving circuit, active matrix type display device and method for driving the same

Номер: US20120133839A1
Автор: Aya Miyazaki, Mitsuaki Osame
Принадлежит: Semiconductor Energy Laboratory Co Ltd

If the frequency of a clock signal is increased, the pulse width of a sampling pulse is decreased, and the amount of time for a video signal to be written to a source line is inadequate. Sampling pulses (sam) rise sequentially in synchronization with the rise of a start pulse (SP). As the start pulse (SP) rises, synchronized with the rise of clock signals (CK, CKB), the sampling pulses (sam) fall off sequentially, delayed by half the period of the clock signals (CK, CKB) for every step. As a result, the sampling pulses (sam) with a pulse width longer than one period of the clock signals (CK, CKB) are generated. In a period T a , a desired video signal (VIDEO) is written to its corresponding source line. In this way, the time for half a period of the clock signal can be secured for writing to the source line.

Подробнее
Номер записи: 25
07-06-2012 дата публикации

Method of driving display panel and display apparatus for performing the same

Номер: US20120139436A1
Автор: Hye-Kwang Park, Sang-Heon PARK, Seung-Hwan Moon
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A method of driving a display panel includes generating a gate on voltage, a first gate off voltage and a second gate off voltage. A clock signal is generated based upon the gate on voltage and the second gate off voltage. A first panel gate off voltage substantially the same as the first gate off voltage and a second panel gate off voltage substantially the same as the second gate off voltage are generated in a first operating mode. A first panel gate off voltage greater than the first gate off voltage and a second panel gate off voltage greater than the second gate off voltage are generated in a second operating mode. A gate signal is generated based upon the clock signal and the first and second panel gate off voltages to a gate line of the display panel.

Подробнее
Номер записи: 26
14-06-2012 дата публикации

Semiconductor device and substrate

Номер: US20120146233A1
Автор: Akira Nakayama
Принадлежит: Oki Semiconductor Co Ltd

A semiconductor device of the invention include a rectangular semiconductor element mounted on a substrate formed with an external input terminal, an external output terminal, and a plurality of wiring patterns connected to each of the external input terminal and the external output terminal. The semiconductor element comprises, a plurality of first electrodes formed along a first edge of a surface thereof, a plurality of second electrodes formed along an edge opposite to the first edge of the surface, a plurality of third electrodes formed in the neighborhood of a functional block, and an internal wiring for connecting the first electrodes and the third electrodes. The substrate comprises, a first wiring pattern for connecting the external input terminal and the first electrodes, a second wiring pattern for connecting the external output terminal and the second electrodes, and a third wiring pattern for connecting the first electrodes and the third electrodes.

Подробнее
Номер записи: 27
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.

Подробнее
Номер записи: 28
21-06-2012 дата публикации

Display control apparatus and control method thereof

Номер: US20120154466A1
Автор: Kazuya Kitada
Принадлежит: Canon Inc

A display control apparatus includes a display control unit configured to display a predetermined object image on a display unit, and a light emission control unit configured to independently control light emission of a plurality of light emitting units corresponding to a plurality of division areas prepared by dividing the display unit, wherein, when a display area of the object image on the display unit is changed, the light emission control unit controls a plurality of division light emitting units other than the plurality of division light emitting units corresponding to the display area of the object image to emit light at a similar luminance to the luminance of the plurality of division light emitting units corresponding to the display area of the object image.

Подробнее
Номер записи: 29
21-06-2012 дата публикации

Displays with minimized crosstalk

Номер: US20120154699A1
Автор: Abbas Jamshidi Roudbari, CHENG Chen, Cheng Ho Yu, Daisuke Nozu, Ming Xu, Shawn R. Gettemy, Shih Chang Chang, Young-Bae Park, Zhibing Ge
Принадлежит: Apple Inc

Display ground plane structures may contain slits. Image pixel electrodes in the display may be arranged in rows and columns. Image pixels in the display may be controlled using gate lines that are associated with the rows and data lines that are associated with the columns. An electric field may be produced by each image pixel electrode that extends through a liquid crystal layer to an associated portion of the ground plane. The slits in the ground plane may have a slit width. Data lines may be located sufficiently below the ground plane and sufficiently out of alignment with the slits to minimize crosstalk from parasitic electric fields. A three-column inversion scheme may be used when driving data line signals into the display, so that pairs of pixels that straddle the slits are each driven with a common polarity. Gate line scanning patterns may be used that enhance display uniformity.

Подробнее
Номер записи: 30
28-06-2012 дата публикации

Display panel, pixel circuit and driving method of differential voltage driven device therein

Номер: US20120162181A1
Автор: Cheng-Yeh Tsai, Po-Lun Chen, Tai-Hsiang Huang, Wei-Jhih Lian, Wen-Bin Lo, Young-Ran Chuang
Принадлежит: AU OPTRONICS CORP

A display panel, a pixel circuit and a driving method of a differential voltage driving device are disclosed. The driving method includes: respectively supplying an alternating common voltage in a first polarity and a first display data in a second polarity to two terminals of the differential voltage driven device in a first frame; disconnecting the differential voltage driven device from the alternating common voltage, thereby keeping one terminal of the differential voltage driving device at the first polarity of the alternating common voltage; converting the alternating common voltage to the second polarity in a second frame which is consecutive to the first frame; and respectively supplying the alternating common voltage in the second polarity and a second display data in the first polarity to the two terminals of the differential voltage driving device in the second frame, here the first polarity is inverse to the second polarity.

Подробнее
Номер записи: 31
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.

Подробнее
Номер записи: 32
28-06-2012 дата публикации

Driver circuit

Номер: US20120162287A1
Автор: Shuuichirou Matsumoto, Yoshihiro Kotani, Yukihide Funayama
Принадлежит: Hitachi Displays Ltd

A driver circuit including a DA converting circuit that converts video data input from the outside to a grayscale voltage; an amplifying circuit that amplifies the grayscale voltage; and a switch circuit that selects the grayscale voltage output from the amplifying circuit and a predetermined voltage as a voltage that is output to the image line. When video data indicating a minimum grayscale, the switch circuit outputs the predetermined voltage to the image line, and when video data indicating a grayscale other than the minimum grayscale is input, the switch circuit outputs the grayscale voltage output from the amplifying circuit to the image line. The predetermined voltage allows a voltage of the pixel electrode and a voltage of the counter electrode after passage of the writing of the image voltage to be coincident with each other.

Подробнее
Номер записи: 33
05-07-2012 дата публикации

Field sequential liquid crystal display device and method for driving the same

Номер: US20120169705A1
Автор: Jun Ma, KANG Yang, Xixi Luo
Принадлежит: Shanghai Tianma Microelectronics Co Ltd

A field sequential liquid crystal display device includes: first, second, third and fourth thin film transistors, a frame buffer capacitor, a storage capacitor and a holding capacitor connected to the storage capacitor in parallel. The gate of first thin film transistor is connected to a gate line, the source thereof is connected to a data line, the drain thereof is connected to the source of second thin film transistor; the source of second thin film transistor is connected to one end of frame buffer capacitor, the drain thereof is connected to the drain of third thin film transistor; the other end of frame buffer capacitor and a source of third thin film transistor are connected to the drain of fourth thin film transistor, the source of fourth thin film transistor is grounded; and the drain of second thin film transistor is connected to one end of storage capacitor.

Подробнее
Номер записи: 34
05-07-2012 дата публикации

Display driving circuit and operating methods

Номер: US20120169783A1
Автор: Hyun-Sang Park
Принадлежит: SAMSUNG ELECTRONICS CO LTD

A display driving circuit includes a buffer unit receiving gradation voltages and generating data signals that drive a panel. A first buffer unit includes “M” main buffers corresponding to M data lines of the panel and a second buffer unit comprises “N” sub buffers, N being less than M. A first switch unit controls a transmission path along which the gradation voltages are applied to the buffer unit, and a second switch unit controls a transmission path along which the data signals are supplied to the data lines. Switches in the second switch unit are turned ON during charge sharing.

Подробнее
Номер записи: 35
19-07-2012 дата публикации

LED Backlight Controller

Номер: US20120182209A1
Автор: Jeremy K. Yaeger, Mikko Topi Loikkanen, Tomi Juhani Koskela, Tuomas Tapani Tuikkanen
Принадлежит: National Semiconductor Corp

The line banding image artifact that results from the interaction of LCD ripple and LED flicker in an LCD device that utilizes LED backlighting strings is substantially reduced by selecting a number of LED strings, individually driving the number of LED strings with a corresponding number of identical clock signals that are equally phase delayed, and selecting the frequency of the clock signals so that the product of the frequency of the clock signal multiplied by the number of LED strings is equal to the line clock frequency.

Подробнее
Номер записи: 36
19-07-2012 дата публикации

Display apparatus and driving method of display apparatus

Номер: US20120182330A1
Автор: Kazutaka Nagaoka
Принадлежит: Japan Display Central Inc

According to one embodiment, a display apparatus includes a display region including a plurality of display pixels arranged in a matrix, a plurality of scanning lines arranged along rows in which the plurality of display pixels are arranged, a plurality of signal lines arranged along columns in which the plurality of display pixels are arranged, a driver including a scanning line driver configured to drive the plurality of scanning lines and a signal line driver configured to drive the plurality of signal lines, and a controller configured to control operation of the driver. The signal line driver includes a memory configured to store at least two frames of video signal data supplied from an external signal source.

Подробнее
Номер записи: 37
09-08-2012 дата публикации

Driving method for reducing image sticking

Номер: US20120200551A1
Автор: Chia-Horng Huang, Chien-Huang Liao, Jenn-Jia Su, Pin-Miao Liu, Shui-Chih Lien, Ting-Jui Chang, Yao-Jen Hsieh, Yu-Hsi Ho
Принадлежит: Individual

A driving method with reducing image sticking effect is disclosed. The driving method includes applying a voltage on the data lines for trapping impurities crossing the data lines and lowering the degree of the image sticking effect, and applying different asymmetric waveforms to different data lines for trapping impurities crossing the data lines and lowering the degree of the image sticking effect.

Подробнее
Номер записи: 38
23-08-2012 дата публикации

Driving circuit and voltage generating circuit and display unit using the same

Номер: US20120212471A1
Автор: Katsumi Abe
Принадлежит: NEC Corp

To provide a liquid crystal display capable of implementing a symmetrical frame and a narrower frame without lowering drive capability of a common drive circuit. [Solution] A liquid crystal display substrate 10 has a data driver circuit 2 and a gate driver circuit 3 for driving the liquid crystal display integrated thereon together with a common drive circuit 4 , where common voltages VCOMH and VCOML are applied from the outside through a pad. The gate driver circuit 3 is placed to be adjacent to one of the four terminals of the liquid crystal display. The common drive circuit 4 is placed to be adjacent to the terminal opposite to where the gate driver circuit 3 is placed and as close to the pad as possible while having almost the same width as the area of the gate driver circuit 3 . The pad close to where the common drive circuit 4 is placed is used as the pad for applying the common voltages VCOMH and VCOML.

Подробнее
Номер записи: 39
23-08-2012 дата публикации

Image display device and method of driving the same

Номер: US20120212474A1
Автор: Dong-Yong Shin, Moon-Sang Hwang, Won-Jun Choe
Принадлежит: Samsung Display Co Ltd

An image display device capable of reducing power consumption. The image display device includes: a position determining unit for determining positions of horizontal lines to which data input to a timing controller are to be supplied; a look-up table (LUT) for storing pre-emphasis voltage information corresponding to the positions of the horizontal lines; the timing controller for transmitting the data and the pre-emphasis voltage information to a data driver; a pre-emphasis voltage generator for generating a pre-emphasis voltage to correspond to the pre-emphasis voltage information from the data driver; and the data driver for supplying the pre-emphasis voltage to data lines in a partial period of a horizontal period and for supplying a data signal in a remaining period of the horizontal period.

Подробнее
Номер записи: 40
06-09-2012 дата публикации

Address-selectable charging of capacitive devices

Номер: US20120223683A1
Автор: Kevin J. Derichs
Принадлежит: Unipixel Displays Inc

A drive circuit for a capacitive device that comprises a first operational state and a second operational state. The drive circuit comprises a capacitor and preferably two or more transistors. The capacitive device is caused to transition from a first operational state to a second operational state by a row pulse being asserted on a row line and a column pulse asserted on a column enable signal commensurate with the assertion of the row pulse. If the column pulse is deasserted before the row pulse is deasserted, the capacitive device is caused to transition from the first operational state to the second operational upon deassertion of the row pulse. In some embodiments, a precisely controlled variable voltage can be applied to the capacitive device.

Подробнее
Номер записи: 41
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.

Подробнее
Номер записи: 42
20-09-2012 дата публикации

Liquid crystal display device free of upper substrate electrode and driving method thereof

Номер: US20120235965A1
Автор: Cheng-Chiu Pai
Принадлежит: AU OPTRONICS CORP

In a liquid crystal display device free of upper substrate, a plurality of independent common lines are provided, and a specified one of the plurality of common lines is electrically coupled to a specified group of pixels. A voltage level of the specified common line is changed from a first level to a second level before data are written into the specified group of pixels; and the voltage level of the specified common line is kept at the second level after the data are written into the specified group of pixels.

Подробнее
Номер записи: 43
20-09-2012 дата публикации

Liquid crystal display sub-pixel with three different voltage levels

Номер: US20120235979A1
Автор: Keitaro Yamashita, Minoru Shibazaki
Принадлежит: TPO Displays Corp

This present invention provides a liquid crystal display (LCD) device in which the sub-pixel is provided with three different voltage levels, so that image quality is improved without the configuration of additional gate lines. The present invention overcomes the reduction of aperture ratio in conventional LCD devices due to the configuration of additional gate lines. By the present invention, the white washout problem relating to the off-axis viewing angle can be overcome while the aperture ratio is not reduced.

Подробнее
Номер записи: 44
27-09-2012 дата публикации

Physical Property Measuring Method for TFT Liquid Crystal Panel and Physical Property Measuring Apparatus for TFT Liquid Crystal Panel

Номер: US20120242353A1
Автор: Kunihiko Sasaki, Masaru Inoue, Takashi Kurihara, Yasuhiro Kume
Принадлежит: Sharp Corp, Toyo Corp

There is provided a physical property measuring method for a TFT liquid crystal panel, includes an impedance setting step of setting the impedance between the source and drain of a TFT of the TFT liquid crystal panel to be less than or equal to a predetermined value, a voltage application step of applying a voltage that cyclically varies to a liquid crystal layer of the TFT liquid crystal panel. And the method further includes a physical property measuring step of measuring a transient current flowing through the liquid crystal layer to which the voltage that cyclically varies is applied in the voltage application step to measure physical properties of the liquid crystal layer.

Подробнее
Номер записи: 45
04-10-2012 дата публикации

Method of driving display panel and display apparatus for performing the same

Номер: US20120249620A1
Автор: Jae-Suk Choi, Woo-Jin Jung, Yong-Jun Choi
Принадлежит: Samsung Display Co Ltd

A display apparatus includes a display panel, a timing controller, data and gate driving parts. The display panel includes first and second substrates, and a liquid crystal layer disposed between the first and second substrates, and displays an image. The timing controller includes a data compensating unit that outputs compensated grayscale data in an n-th pixel row, based upon a coupling capacitance generated according to a grayscale data variation between an (n−1)-th pixel row and the n-th pixel row, n′ being a natural number. The data driving part converts the compensated grayscale data to an analog data voltage, and outputs the analog data voltage to data lines.

Подробнее
Номер записи: 46
04-10-2012 дата публикации

Pixel array of fringe field switching liquid crystal display panel and driving method thereof

Номер: US20120249943A1
Автор: Cheng-Chiu Pai
Принадлежит: AU OPTRONICS CORP

A pixel array of a fringe field switching (FFS) liquid crystal display panel includes a plurality of gate lines, a plurality of data line, a plurality of pixel electrodes, and a plurality of common lines. The gate lines are disposed parallel to each other along a first direction. The data lines are disposed parallel to each other along a second direction. A plurality of sub-pixel regions is defined by the gate lines and the data lines. The common lines are disposed along the first direction and electrically isolated from each other. Each of the common lines includes a plurality of common electrodes extending along the second direction. The two adjacent common electrodes of each common line are respectively disposed in the two adjacent sub-pixel regions which are located in different rows.

Подробнее
Номер записи: 47
11-10-2012 дата публикации

Liquid crystal display, and device and method of modifying image signal for liquid crystal display

Номер: US20120256904A1
Автор: Sang Su HAN, Seok Hwan ROH, Sung Gon JUNG
Принадлежит: SAMSUNG ELECTRONICS CO LTD

An image signal modifying device includes a pixel, a memory which stores compressed information in which a three-dimensional (“3-D”) lookup table is coded, an image signal modifying unit which decodes the compressed information to generate a restored 3-D lookup table and generates a modified signal based on a first image signal of a first frame, a second image signal of a second frame, a third image signal of a third frame and the restored 3-D lookup table, and a data driver which converts the modified signal into the data voltage and supplies the data voltage to the pixel.

Подробнее
Номер записи: 48
08-11-2012 дата публикации

Display driver and flicker suppression device thereof

Номер: US20120280966A1
Автор: Chien-Ming Chen, Hui-Wen Miao, Ko-Yang Tso
Принадлежит: Raydium Semiconductor Corp

A flicker suppression device applied in a display driver for preventing the output image data of the display driver from being affected by an electrostatic discharge (ESD) event is provided. The flicker suppression device includes an ESD detector and an output stage controller. The ESD detector is coupled to a first power wire of the display driver for determining whether an ESD level shift event occurs to the first system reference voltage signal on the first power wire. If so, a control signal corresponding to the first level is provided. The output stage controller controls the output stage circuit of the display driver to be in a high impedance state in response to the control signal corresponding to the first level to avoid the output stage circuit outputting an output image data that has been affected by an ESD event.

Подробнее
Номер записи: 49
15-11-2012 дата публикации

Liquid crystal display device

Номер: US20120287028A1
Автор: Seiji Ohhashi, Shohei Katsuta, Tetsuya Ide, Tsuyoshi Kamada
Принадлежит: Sharp Corp

A liquid crystal display device ( 1 ) of the present invention includes: gate bus lines ( 2 ); source bus lines ( 4 ); CS bus lines ( 6 ); gate electrodes; source electrodes; first transistors (TFT 1 ); second transistors (TFT 2 ); first pixel electrodes; second pixel electrodes; pixel regions ( 8 ) each including a first sub pixel ( 8 a ) and a second sub pixel ( 8 b ); pixel regions ( 10 ) each including a first sub pixel ( 10 a ) and a second sub pixel ( 10 b ); pixel regions ( 12 ) each including a first sub pixel ( 12 a and a second sub pixel ( 12 b )); gate electrodes; drain electrodes; third transistors (TFT 3 ); first buffer capacitor electrodes; second buffer capacitor electrodes; and capacitors (Cd). Capacitances of the capacitors (Cd) in the respective pixel regions vary depending on the colors displayed by the respective pixel regions. This makes it possible that occurrence of a color shift of an image viewed from the oblique viewing direction is reduced.

Подробнее
Номер записи: 50
22-11-2012 дата публикации

Display apparatus

Номер: US20120293736A1
Автор: Chongchul Chai, Joon-Chul Goh, Kwang-Chul Jung, Kyoungju Shin, Young-Soo Yoon
Принадлежит: Samsung Display Co Ltd

A display apparatus includes a plurality of pixels. At least one of the pixels includes a gate line, a data line, a first storage line spaced apart from the gate line, a second storage line spaced apart from the gate line and the first storage line, first and second switching devices electrically connected to the gate line and the data line, a first liquid crystal capacitor connected to the first switching device and including the liquid crystal layer as its dielectric substance, a second liquid crystal capacitor connected to the second switching device and including the liquid crystal layer as its dielectric substance, a first storage capacitor connected between the first switching device and one of the first and second storage lines, and a second storage capacitor connected between the second switching device and a remaining one of the first and second storage lines.

Подробнее
Номер записи: 51
29-11-2012 дата публикации

Display device

Номер: US20120299899A1
Автор: Yoshimitsu Yamauchi
Принадлежит: Sharp Corp

A display device which can prevent deterioration of a liquid crystal and reduction in display quality at low power consumption without lowering an aperture ratio is provided. An opposite voltage (Vcom) is applied to an opposite electrode ( 80 ) of a liquid crystal capacitive element (Clc). One ends of a pixel electrode ( 20 ), a first switch circuit ( 22 ), a second switch circuit ( 23 ), and a first terminal of a second transistor (T 2 ) form an internal node (N 1 ). The other ends of the first switch circuit ( 22 ) and the second switch circuit ( 23 ) are connected to a source line (SL) and a voltage supply line (VSL), respectively. A control terminal of a first transistor (T 1 ) in the second switch circuit ( 23 ), a second terminal of the second transistor (T 2 ), and one end of a boost capacitive element (Cbst) form an output node (N 2 ). The other end of the boost capacitive element (Cbst) and the control terminal of the second transistor (T 2 ) are connected to a boost line (BST) and a reference line (REF), respectively. This configuration makes it possible to perform an action (self-refresh action) to return the absolute value of the voltage between both ends of a display element part to the value at the time of a last writing action without performing a writing action.

Подробнее
Номер записи: 52
29-11-2012 дата публикации

Active matrix substrate, liquid crystal panel, liquid crystal display device, television receiver

Номер: US20120300133A1
Автор: Yuhichi Saitoh
Принадлежит: Sharp Corp

An active matrix substrate of the present invention includes: data signal lines; scanning signal lines (GLi); transistors connected with the data signal lines and the scanning signal lines (GLi); and retention capacitor lines (CSLi). One pixel region includes a plurality of pixel electrodes. A CS driver ( 46 ) for outputting a retention capacitor line signal to drive the retention capacitor lines is formed monolithically. In one pixel region, a pixel electrode and a retention capacitor line corresponding to the pixel electrode forms a retention capacitor therebetween. This allows the liquid crystal display device based on a pixel-division system to have a liquid crystal panel with a narrower frame.

Подробнее
Номер записи: 53
20-12-2012 дата публикации

Lcd and drive method thereof

Номер: US20120320114A1
Автор: Jin Chul Choi, Sun Young Kim
Принадлежит: Individual

This invention relates to a liquid crystal display device and its driving method for improving a visual picture quality. A liquid crystal display device according to an embodiment includes a liquid crystal display panel where plural pixels composed of sub-pixels arranged in a fixed pattern are arranged by the unit of one horizontal line; a timing controller for controlling the gray level realization of digital data inputted from a system; and a data drive circuit that differently realigns a data pattern of the digital data by the unit of one horizontal line for each k horizontal period, that converts the digital data of the realigned data pattern into analog data voltages, and that makes the analog data voltages, which are buffered in accord with the realigned data pattern, in accord with an arrangement pattern of the sub-pixels constituting each pixel to supply the analog data voltages to each pixel.

Подробнее
Номер записи: 54
27-12-2012 дата публикации

Display device and display driving method

Номер: US20120327137A1
Автор: Kohji Saitoh
Принадлежит: Sharp Corp

A display device includes a display screen in which pixels each made up of at least two rows and two columns of subpixels R, G, B, and W corresponding to a plurality of colors are two-dimensionally disposed so that a desired color is displayed by a combination of the plurality of colors. Horizontal lines in each of which subpixels are aligned in a row direction are scanned so that (i) gate bus lines corresponding to horizontal lines each including a specific color subpixel are selected and (ii) gate bus lines corresponding to horizontal lines each including no specific color subpixel are non-selected, the specific color subpixel being a subpixel of a specific color for which driving is desired.

Подробнее
Номер записи: 55
03-01-2013 дата публикации

Driving method for display device

Номер: US20130002734A1
Автор: Fumiaki Komori, Hiroshi Okawara, Hisashi Ishino, Kimitoshi Ohgiichi, Nobuyuki Ishige, Shiro Ueda, Tetsuro Izawa, Tetsuya Kawamura, Yoshihiro Imajo
Принадлежит: Hitachi Displays Ltd, Panasonic Liquid Crystal Display Co Ltd

A liquid crystal display includes pixels each having an switching element, drain drivers and gate drivers for operating the switching elements and the pixels, and drain lines and gate lines supplying signals from the drain drivers and the gate drivers to the switching elements being formed on one of a pair of substrates sandwiching a liquid crystal layer. Wiring lines are formed on the one of a pair of substrates for transferring display data signals and a clock signal to the gate drivers.

Подробнее
Номер записи: 56
03-01-2013 дата публикации

Testing Circuit of Dual Gate Cell Panel and Color Display Method for Dualgate Cell Panel

Номер: US20130002738A1
Автор: Tai-Fu Lu
Принадлежит: Hannstar Display Corp

A testing circuit of a dual gate cell panel and a color display method of the dual gate cell panel. There are many data lines and scan lines in the dual gate cell panel, and the data lines are divided into three groups, and the scan lines are divided into two groups. The data lines or scan lines of each group are connected respectively to metal wires with a test pad each. When an appropriate signal is inputted to each test pad, the dual gate cell panel shows red, green and blue colors individually, so that defects of the dual gate cell panel can be detected accurately to avoid any unnecessary waste on the defective dual gate cell panel incurred in the subsequent manufacturing processes.

Подробнее
Номер записи: 57
10-01-2013 дата публикации

Electro-optical device and electronic apparatus

Номер: US20130010006A1
Автор: Akihiko Ito
Принадлежит: Seiko Epson Corp

In one unit period of a display period, each pair of two scanning lines is selected and a gray scale potential corresponding to an image signal of pixels of one scanning line of each pair of scanning lines is supplied to each signal line. In another unit period, the other scanning line of each pair of scanning lines is selected and a gray scale potential corresponding to an image signal of the pixels of the other scanning line is supplied to each signal line.

Подробнее
Номер записи: 58
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.

Подробнее
Номер записи: 59
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.

Подробнее
Номер записи: 60
21-03-2013 дата публикации

SHIFT REGISTER, SCANNING SIGNAL LINE DRIVE CIRCUIT, AND DISPLAY DEVICE

Номер: US20130069930A1
Автор: Fukaya Tetsuo, Ishii Kenichi, Nakamizo Masahiko, Yonemaru Masashi
Принадлежит: SHARP KABUSHIKI KAISHA

A bistable circuit includes an output terminal that outputs a state signal, an output terminal that outputs an other-stage control signal, a first node of which a potential is controlled based on a set signal and a clear signal, a thin-film transistor that provides a potential of a second clock to the output terminal when a potential of the first node is at a high level, a thin-film transistor that provides a potential of a first clock to the output terminal when a potential of the first node is at a high level, and a thin-film transistor for changing a potential of the other-stage control signal to a low level based on a reset signal. The first clock is generated by a power source of a different system from the second clock, and has a smaller amplitude than that of the second clock. 1. A shift register , being provided on a substrate on which a pixel circuit for displaying an image is formed , and comprising a plurality of bistable circuits each having a first state and a second state and being connected in series to each other , the plurality of bistable circuits sequentially becoming in a first state based on a circuit-control clock signal provided from an outside of each bistable circuit , wherein a first output node outputting a state signal indicating one of the first state and the second state to an outside;', 'an output-control switching element having a control terminal, a first conductive terminal, and a second conductive terminal, the second conductive element being connected to the first output node;', 'a second output node outputting an other-stage control signal for controlling an operation of a bistable circuit other than said each bistable circuit; and', 'a control unit controlling a potential of a first node connected to the control terminal of the output-control switching element and a potential of the second output node, based on the circuit-control clock signal and the other-stage control signal outputted from a bistable circuit other than said ...

Подробнее
Номер записи: 61
04-04-2013 дата публикации

Devices and methods for kickback-offset display turn-off

Номер: US20130082994A1
Автор: Ahmad Al-Dahle
Принадлежит: Apple Inc

Methods and devices employing circuitry for display turn-off that offsets the effect of kickback voltage are provided. In one example, a method may include determining an amount of kickback voltage that is expected to occur in pixels of the electronic display during shutdown of the display, supplying a common voltage output to a common electrode of a pixel of the electronic display, and supplying an activation signal to the pixel to activate the pixel. The method may also include supplying a data signal to a pixel electrode of the pixel. The data signal may be substantially equal to the sum of the common voltage output and the determined kickback voltage. The method may include removing the activation signal from the pixel to store the data signal in the pixel to reduce the effect of kickback voltage on the pixel electrode of the pixel during shutdown of the electronic display.

Подробнее
Номер записи: 62
11-04-2013 дата публикации

Color Liquid Crystal Display Device And Gamma Correction Method For The Same

Номер: US20130088527A1
Автор: Irie Kentaro, Shimoshikiryoh Fumikazu
Принадлежит:

A color liquid crystal display device configured to employ a pixel division method in which each pixel of a displayed image is configured with sub-pixels obtained by spatial division of one pixel in a division ratio may include: pixel formation portions provided correspondingly to respective pixels of the image, each portion configured to form a pixel of primary colors with the sub-pixels; a drive circuit configured to provide each portion with applied voltages respectively corresponding to the sub-pixels composing the pixel to be formed by that portion, based on a gradation value indicated by an input signal provided as a video signal representing the image; and a gamma correction part configured to correct a relationship between the gradation value indicated by the input signal and a luminance value of the pixel to be formed by that portion according to the gradation value independently for each of the primary colors. 110-. (canceled)11. A color liquid crystal display device configured to employ a pixel division method in which each pixel of an image displayed in a screen is configured with two or more sub-pixels obtained by spatial division of one pixel in a division ratio , the device comprising:a plurality of pixel formation portions provided correspondingly to respective pixels of the image, each of the pixel formation portions configured to form a pixel of any of primary colors for color display with the two or more sub-pixels;a drive circuit configured to provide each of the pixel formation portions with applied voltages respectively corresponding to the two or more sub-pixels composing the pixel to be formed by that pixel formation portion, based on a gradation value indicated by an input signal provided from outside as a video signal representing the image; anda gamma correction part configured to correct a relationship between the gradation value indicated by the input signal and a luminance value of the pixel to be formed by that pixel formation portion ...

Подробнее
Номер записи: 63
25-04-2013 дата публикации

Display panel drive technique for reducing power consumption

Номер: US20130100111A1
Автор: Hiroaki Shirai
Принадлежит: Renesas Electronics Corp

A method of operating a display apparatus in which one source output of a source driver is connected with first to N-th data lines through first to N-th time division switches, the method includes precharging the first to N-th data lines by outputting a predetermined precharge voltage from the source output with the first to N-th time division switches turned on, and driving a specific pixel connected with one of the first to N-th data lines, by feeding a first drive voltage to the one of the first to N-th data lines from the one source output with associated one of the first to N-th time division switches turned on. The associated one of the first to N-th time division switches is kept turned on during a period between a first timing when the precharging is started and a second timing when the driving the specific pixel is completed.

Подробнее
Номер записи: 64
02-05-2013 дата публикации

Display panel and display apparatus having the same

Номер: US20130106819A1
Автор: Dong-Ki Lee, Hyo-jae Jang, Jeong-Dong Noh, Su-hong KO, Woo-Jae Lee
Принадлежит: SAMSUNG ELECTRONICS CO LTD

The display panel includes: a gate line; a data line which crosses the gate line and receives a data voltage from a data driver; a thin film transistor (TFT) which is formed at an intersection between the gate line and the data line; a common voltage unit which supplies a common voltage; a capacitor; and a switching unit which shuts off a supply of the data voltage and the common voltage and changes a charging electric potential of the capacitor into a black electric potential upon receiving a data signal corresponding to a black frame formed between image frames.

Подробнее
Номер записи: 65
02-05-2013 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130106924A1
Автор: Kawagoe Yoshiyuki, Matsui Yoshitaka
Принадлежит: SHARP KABUSHIKI KAISHA

A liquid crystal display device performs suitable overshoot drive, even if a panel temperature is changed due to a change of the backlight emission luminance. The liquid crystal display device includes: a temperature sensor which detects the temperature in the device; an emphasis conversion section, which obtains, after the elapse of one vertical display period, an emphasis conversion parameter for making the transmissivity of the liquid crystal panel reach the transmissivity specified by input image signals, and which outputs applying voltage signals for the liquid crystal panel on the basis of the emphasis conversion parameter; and a main microcomputer which corrects the panel temperature of the liquid crystal panel on the basis of the changed light emission luminance when the light emission luminance of the backlight is changed. The emphasis conversion section variably controls the emphasis conversion parameter on the basis of the panel temperature corrected via the main microcomputer. 1. A liquid crystal display device having a liquid crystal panel displaying an input video signal , a light source illuminating the liquid crystal panel , and a light source luminance control portion controlling a lighting luminance of the light source , the liquid crystal display device comprisinga temperature detecting portion that detects a temperature within the liquid crystal display device;an enhanced converting portion that evaluates an enhanced conversion parameter for compensating the optical response characteristic of the liquid crystal panel, to output an applied voltage signal to the liquid crystal panel based on the enhanced conversion parameter; anda panel temperature correcting portion that, when the lighting luminance of the light source changes, corrects a panel surface temperature of the liquid crystal panel corresponding to a temperature detected by the temperature detecting portion, based on the changed lighting luminance;the enhanced converting portion variably ...

Подробнее
Номер записи: 66
16-05-2013 дата публикации

Liquid crystal display device

Номер: US20130120340A1
Автор: Hiroshi Yamashita, Hisaharu Oura
Принадлежит: Funai Electric Co Ltd

A liquid crystal display device includes a liquid crystal cell, a gate driver, a source driver and a controller. The liquid crystal cell has a plurality of source lines, a plurality of gate lines, and a plurality of pixels. The pixels define a pixel region with a set of pixels. The source driver has a plurality of second output lines. The second output lines are connected to source lines to output voltage to the pixels. The source lines have a pair of common source lines that are connected to the set of pixels of the pixel region. The common source lines are further commonly connected to one of the second output lines of the source driver. The controller is further configured to display a predetermined color in the set of pixels of the pixel region.

Подробнее
Номер записи: 67
16-05-2013 дата публикации

Color sequential liquid crystal display device

Номер: US20130120467A1
Автор: Chengming He, Hung-Lung Hou
Принадлежит: Shenzhen China Star Optoelectronics Technology Co Ltd

The color sequential LCD device comprises an LCD panel, a data drive circuit, a gate drive circuit and backlight units. The LCD panel comprises data lines disposed along a major-axis direction of a substrate of the LCD panel, gate lines orthogonally intersecting the data lines, and a plurality of color sequential displaying areas defined along the major-axis direction of the substrate. The data drive circuit disposed at one side of the substrate in the minor-axis direction applies image signals to the data lines. The gate drive circuit disposed at one side of the substrate in the major-axis direction applies strobe pulse to the gate lines. The backlight units disposed at one side of the substrate in the major-axis direction at least comprises red LEDs, green LEDs and blue LEDs. The invention improves the displaying effect due to increase the number of the color sequential displaying areas.

Подробнее
Номер записи: 68
23-05-2013 дата публикации

VIDEO SIGNAL LINE DRIVING CIRCUIT AND DISPLAY DEVICE PROVIDED WITH SAME

Номер: US20130127930A1
Автор: Nishio Masaaki
Принадлежит: SHARP KABUSHIKI KAISHA

In this liquid crystal display device, typically, when a +3V source voltage VCI or a −3V source voltage VCI is present between a ground potential GND and an output signal voltage Dh, an output voltage selecting portion () is initially controlled to provide a video signal line with the +3V source voltage VCI or the −3V source voltage VCI (after providing the ground potential), thereby raising (or lowering) the potential of the video signal line. Thereafter, the video signal line is further driven at a voltage from a tone voltage generating circuit using a 5V power source until the potential level reaches the output signal voltage Dh. As a result, the 5V power source is used as little as possible so that power consumption can be reduced. 1. A video signal line driving circuit in a display device for receiving an image signal representing an image and applying voltages to a plurality of video signal lines in accordance with the image signal , the display device including pixel electrodes provided in a plurality of pixel forming portions arranged in a matrix so as to correspond to intersections of the video signal lines and a plurality of scanning signal lines in a display portion for displaying the image , a common electrode opposed to the pixel electrodes so as to apply voltage to the pixel electrodes , a first power source for providing a first voltage , and a second power source for providing a second voltage having a greater magnitude than the first voltage , the driving circuit comprising:a tone voltage generating circuit for generating a plurality of tone voltages to be applied to the video signal lines based on the second power source;a conversion circuit for converting the generated tone voltages and outputting signals indicative of pixel values included in the image signal that are to be provided to the pixel forming portions; andan output circuit for providing a signal voltage outputted by the conversion circuit to a target video signal line for supplying the ...

Подробнее
Номер записи: 69
30-05-2013 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130135187A1
Автор: HIGANO Emi, NAKAO Kenji, NISHIYAMA Kazuhiro, Suzuki Daiichi
Принадлежит:

According to one embodiment, a liquid crystal display device includes a liquid crystal display panel, a first illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a first emission direction, a second illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a second emission direction different from the first emission direction, and a controller configured to control the liquid crystal display panel, the first illumination unit and the second illumination unit in a first display mode in which 3D display with power saving is effected, and in a second display mode in which 3D display with a wider viewing angle than in the first display mode is effected. 1. A liquid crystal display device comprising:a liquid crystal display panel of a transmission type;a first illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a first emission direction with an inclination to a normal of the liquid crystal display panel;a second illumination unit configured to illuminate the liquid crystal display panel with light which is emitted in a second emission direction with an inclination to the normal of the liquid crystal display panel, the second emission direction being different from the first emission direction; anda controller configured to control the liquid crystal display panel, the first illumination unit and the second illumination unit in a first display mode in which 3D display with power saving is effected, and in a second display mode in which 3D display with a wider viewing angle than in the first display mode is effected,the controller being configured to execute the first display mode in which the controller alternately outputs a left-eye video signal and a right-eye video signal to the liquid crystal display panel in a state in which a right-eye shutter and a left-eye shutter of shutter glasses are opened at the same ...

Подробнее
Номер записи: 70
30-05-2013 дата публикации

LCD Device and Method of Driving the LCD Device

Номер: US20130135281A1
Автор: Cheng-ming He, Hung-Lung Hou
Принадлежит: Shenzhen China Star Optoelectronics Technology Co Ltd

The present invention provides a liquid crystal display (LCD) device and a driving method thereof capable of providing an enabling signal to the pixel unit which displaying different grayscales in the current frame signal and the previous frame signal via a plurality of secondary signal lines after determining the current frame signal is not identical with the previous frame signal. And the pixel unit conducts the data voltage outputted from the data line to the liquid crystal capacitor to adjust alignment of liquid crystal molecules in case of the first transistor receiving the scan signal pulse outputted from the corresponding scan line and the second transistor receiving the enabling signal outputted from the secondary signal lines. In this way, power consumption of the LCD device is reduced.

Подробнее
Номер записи: 71
06-06-2013 дата публикации

Liquid crystal display and driving method of liquid crystal display

Номер: US20130141411A1
Автор: Daiichi Suzuki, Kenji Nakao, Yukio Tanaka
Принадлежит: Japan Display Inc

According to one embodiment, a display includes pixel electrodes arranged in a matrix, gate lines extending along rows, signal lines extending along columns, storage capacitance lines extending along the rows to superpose a voltage on the pixel electrodes, a counterelectrode opposed to the pixel electrodes, a driver to drive the gate lines, the signal lines, and the storage capacitance lines, and a controller to control the driver. The controller sequentially drives the gate lines to write from the signal lines to the pixel electrodes and, after the write to the pixel electrodes, changes a potential of each of the storage capacitance lines to cause alignment of the liquid crystal layer to make a transition from splay alignment to bend alignment.

Подробнее
Номер записи: 72
13-06-2013 дата публикации

Display driver and manufacturing method thereof

Номер: US20130147699A1
Автор: Hyungtae Kim, Myung-Ho Seo
Принадлежит: SAMSUNG ELECTRONICS CO LTD

Disclosed is a display driver which includes a serial-to-parallel converter outputting parallel RGB data in response to a clock and serial RGB data, a shift register unit sequentially shift the clock to store the shifted clocks, a data latch unit receiving the parallel RGB data based on the shifted clocks, a digital-to-analog converter converting data stored in the data latch unit to analog data using gamma reference voltages, and an output buffer unit outputting the converted analog data to corresponding output pads. The output buffer unit includes sharing switches respectively corresponding to the output pads, the output pads are connected to sharing pads via the sharing switches, and the sharing pads are interconnected via a film having a conductive material.

Подробнее
Номер записи: 73
13-06-2013 дата публикации

REDUNDANCY SHIFT REGISTER CIRCUIT FOR DRIVER CIRCUIT IN ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130147700A1
Автор: KAWASAKI Yuji, KOYAMA Jun
Принадлежит: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

An active matrix display device comprises a substrate having an insulating surface, a plurality of pixel electrodes arranged in a matrix form over the substrate, and a plurality of switching elements operationally connected to the pixel electrodes. Each of the switching elements further comprise a thin film transistor. The display device further includes a display medium comprising an emissive material that is capable of electrically changing luminous strength disposed at each of the pixel electrodes, and a driver circuit that includes a plurality of thin film transistors for driving the plurality of switching elements. Each of the plurality of thin film transistors comprise a crystallized semiconductor layer, a gate insulating film adjacent to the crystallized semiconductor layer and a gate electrode adjacent to the gate insulating film. 1. An active matrix type display device comprising:a substrate;a first thin film transistor formed over the substrate;a pixel electrode electrically connected to the first thin film transistor formed over the substrate;a display medium adjacent to the pixel electrode, the display medium comprising an emissive material and capable of electrically changing luminous strength,a gate driver circuit operationally connected to a gate electrode of the first thin film transistor, the gate driver circuit including a dynamic type shift register, wherein the dynamic type shift register comprises a capacitor and a plurality of second thin film transistors formed over the substrate,wherein all of the first thin film transistor and the plurality of second thin film transistors have a same conductivity type, andwherein all of the first thin film transistor and the plurality of second thin film transistors are of n-channel type.2. The active matrix type display device according to claim 1 , wherein each of the first thin film transistor and the plurality of second thin film transistors comprises crystalline silicon.3. The active matrix type display ...

Подробнее
Номер записи: 74
20-06-2013 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130154912A1
Автор: NAGAMI Takahiro
Принадлежит: JAPAN DISPLAY EAST INC.

A pixel electrode is formed on a TFT substrate, and a gate insulating film is formed thereon. On the gate insulating film, formed is an inorganic passivation film, on which a common electrode having slits is formed. Through-holes are formed in the gate insulating film at areas where the pixel electrode faces the common electrode, and the pixel electrode is not connected to a source electrode in the through-hole. The through-holes are filled with the inorganic passivation film, and the common electrode is formed on the inorganic passivation film at a position corresponding to each through-hole. The pixel electrode faces the common electrode at the position through not the gate insulating film but only the inorganic passivation film, and thus the pixel capacity can be increased. Accordingly, it is possible to prevent changes in the electric potential of the pixel electrode caused by ON/OFF operations. 1. A liquid crystal display device comprising:a TFT substrate on which pixels having pixel electrodes and TFTs are formed in a matrix shape;an opposed substrate having color filters; andliquid crystal sandwiched between the TFT substrate and the opposed substrate,wherein the pixel electrode is formed on the TFT substrate, a gate insulating film is formed on the pixel electrode, an inorganic passivation film is formed on the gate insulating film, and a common electrode having slits is formed on the inorganic passivation film;a video signal is supplied to the pixel electrode from a source electrode of the TFT through a first through-hole of the gate insulating film;a second through-hole is formed in the gate insulating film at a position where the pixel electrode faces the common electrode, and the pixel electrode and the source electrode are not connected to each other in the second through-hole;the inorganic passivation film is formed in the second through-hole; andthe common electrode is formed on the inorganic passivation film at an area corresponding to the second ...

Подробнее
Номер записи: 75
27-06-2013 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE

Номер: US20130162697A1
Автор: Kobayashi Takahiro, UMEDA Yoshio
Принадлежит: Panasonic Liquid Crystal Display Co., Ltd.

A liquid crystal display device includes: a liquid crystal display unit including pixels and displaying an image based on an input image signal; a drive unit that applies a voltage based on the input image signal to the pixels while inverting a polarity of the voltage for each of frames; a luminance determination unit that determines whether a detected average luminance has changed, between the frames, by an amount equal to or more than a reference luminance; and a signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the luminance determination unit determines that the average luminance has changed by the above amount, wherein the drive unit inverts the phase of the polarity of the voltage applied to the pixels when the phase inversion enabling signal is generated. 1. A liquid crystal display device , comprising:a liquid crystal display unit that includes pixels and displays an image based on an input image signal input for each of frames;a drive unit that applies a voltage based on the input image signal to the pixels of the liquid crystal display unit while inverting a polarity of the voltage for each of the frames;a luminance determination unit that detects, for each of the frames, an average luminance of the image displayed on the liquid crystal display unit, and determines whether the detected average luminance has changed, between the frames adjacent to each other, by an amount equal to or more than a predetermined reference luminance; anda signal generation unit that generates a phase inversion enabling signal for inverting a phase of the polarity of the voltage applied to the pixels, in a case where the luminance determination unit determines that the average luminance has changed by the amount equal to or more than the reference luminance, whereinthe drive unit inverts the phase of the polarity of the voltage applied to the pixels when the phase ...

Подробнее
Номер записи: 76
27-06-2013 дата публикации

Image processing apparatus, projector and image processing method

Номер: US20130162698A1
Автор: Hidehito Iisaka, Hitoshi Sasaki
Принадлежит: Seiko Epson Corp

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

Подробнее
Номер записи: 77
11-07-2013 дата публикации

Redundant control system for lcd

Номер: US20130176318A1
Автор: David Williams, Hanwook Baek, William Dunn
Принадлежит: American Panel Corp

In an exemplary embodiment, each horizontal and vertical conductor of a TFT array may be in electrical contact with a first and second control system. Initially, the entire display is driven by the first control system. When/if a failure occurs in the first control system, it is powered down and the second control system maintains operation of the entire display. Each control system may contain a set of source/gate drivers, display interface board, and power supply. A reversionary button may allow the user to manually switch between control systems. Alternatively, failure may be detected by the display interface boards or a graphics processor.

Подробнее
Номер записи: 78
25-07-2013 дата публикации

Driving method and a display structure using the driving method

Номер: US20130187897A1
Автор: Hung-Ta Liu
Принадлежит: Individual

A driving method drives a display. The display includes a scan driving circuit, a data driving circuit, a plurality of first signal lines coupling with the scan driving circuit, and a plurality of second signal lines coupling with the data driving circuit. The first signal lines cross the second signal lines to form the pixel matrix. The driving method comprises to divide the pixel matrix into at least a first region and a second region, then, to drive the first region by a first frame rate, and to drive the second region by a second frame rate, wherein the first frame rate is leas than the second frame rate.

Подробнее
Номер записи: 79
01-08-2013 дата публикации

PANEL DRIVING DEVICE HAVING A SOURCE DRIVING CIRCUIT, AND LIQUID CRYSTAL DISPLAY APPARATUS HAVING THE SAME

Номер: US20130194251A1
Автор: CHENG Chih-Kang, Deng Chih-Kang, YEH Sung-Yau
Принадлежит: IIi Technology Coroporation

A liquid crystal display (LCD) apparatus includes: multiple differential amplifier stages each of which is operable to generate, according to a bias current and an input voltage, an output voltage having a magnitude and a slew rate that correspond respectively to the input voltage and a magnitude of the bias current, and serving as a data voltage of a corresponding pixel unit of an LCD panel; multiple current sources controllable to generate and provide a plurality of the bias currents to the differential amplifier stages, respectively; and a bias voltage generating unit connected electrically to the current sources in a current mirror configuration for generating an input bias current and controlling the current sources to generate the bias currents according to a latch pulse signal. The slew rate of the output voltage corresponds to a logic state of the input bias current. 2. The LCD apparatus as claimed in claim 1 , wherein each of said data voltage generating units further includesa switch having a first terminal that is connected electrically to said differential amplifier stage of said operational amplifier for receiving the output voltage therefrom, a second terminal that is connected electrically to said source terminal of said TFT of the corresponding one of said pixel units, and a control terminal that receives the latch pulse signal from said timing control circuit, said switch of each of said data voltage generating units switching between conductive and non-conductive states according to the latch pulse signal received thereby such that the output voltage through said switch serves as the data voltage of the corresponding one of said pixel units of said LCD panel when said switch is in the conductive state.3. The LCD apparatus as claimed in claim 1 , wherein said current source of said operational amplifier of each of said data voltage generating units includes:a first transistor having a first terminal that is connected electrically to said ...

Подробнее
Номер записи: 80
08-08-2013 дата публикации

METHOD OF DRIVING A DISPLAY PANEL WITH DEPOLARIZATION

Номер: US20130201089A1
Автор: DAGOIS Jean-Paul, LE ROY Philippe, THIEBAUD Sylvain
Принадлежит: THOMSON LICENSING

The method comprises, in addition to emission periods, depolarization periods during which a predetermined depolarization voltage, which exhibits a polarity opposite to the polarity opposite to the voltage applied during the emission periods, is applied and sustained at the control terminal of said driver circuits of the panel, and a reference depolarization voltage, which is different from the reference emission voltage, is applied to the reference electrodes to which reference terminals of the driver circuits are linked. This method makes it possible to use conventional and inexpensive column control means. 111-. (canceled)2. Method according to claim 1 , wherein the array of multiple light emitters or optical valves is an array of light emitters.3. Method according to claim 2 , wherein claim 2 , during the depolarization periods of the driver circuits of the panel claim 2 , the emitters controlled by these circuits do not emit light.4. Method according to claim 1 , wherein claim 1 , the addressing step of a depolarization period also comprises:as of the end of the select signal, a sustain step during which said predetermined depolarization voltage is sustained at the control terminal by said sustain capacitor,a reference de-setting step, inserted between the addressing step and the sustain step of this depolarization period, during which the voltage applied to the reference terminal of the at least one driver circuit changes from the reference emission voltage to the reference depolarization voltage, and reference re-setting step, after said sustain step, during which the voltage applied to the reference terminal of the at least one driver circuit this circuit changes from the reference depolarization voltage to the reference emission voltage.5. Method according to claim 1 , wherein all the reference electrodes of each group of the at least two groups are linked to one and the same common reference terminals.6. Method according to claim 1 , wherein claim 1 , said ...

Подробнее
Номер записи: 81
15-08-2013 дата публикации

IMAGE DISPLAY METHOD AND APPARATUS

Номер: US20130207941A1
Автор: FUJIYOSHI Tatsumi
Принадлежит: Eidos Advanced Display, LLC

An image display method and apparatus for generating display data from predetermined high-order bits of original image data, the display data reflecting an error of low-order bits in the original image data. The display data is used to drive each of pixels arranged in line and column directions. The high-order three bits of six-bit original image data are regarded as intra-frame process data. A process value is determined based on the low-order three bits of the original image data, on a frame number, on a line number and on a column number. That process value is added to the least significant bit of the intra-frame process value made of the high-order three bits, whereby three-bit display data is generated. The addition of the process value evenly distributes the gray level error of the low-order three bits within each frame and between frames for simulated high quality gray level display. 1. An image display method comprising the steps of:generating display data made of X bits from original image data composed of Y bits, said X bits being fewer than said Y bits;using the X-bit display data to drive each of pixels arranged in line and column directions; andgenerating a binary-signal process value to be added to intra-frame process data based on the high-order X bits of said original image data;{'sup': '(Y-X)', 'wherein, if the same original image data is made to correspond with a group of pixels on 2columns continued on each of a predetermined number of lines, said process value is arranged so that each of adjacent lines in the pixel group will have a different combination of pixels in which the process value of “1” us added to said intra-frame process data.'}29-. (canceled) 1. Field of the InventionThe present invention relates to an image display apparatus having pixels continuously arranged in the line and column directions. More particularly, the invention relates to an image display method and an image display apparatus for generating display data out of ...

Подробнее
Номер записи: 82
22-08-2013 дата публикации

Timing Controller for Display

Номер: US20130215002A1
Автор: Li Yuan, Shen Ling
Принадлежит: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.

According to one embodiment of the present invention, a timing controller for a display, includes a first unit, a second unit and a third unit. The first unit is configured to generate an image signal from a first input signal. The second unit is configured to generate a multitude of timing signals and a control signal from a multitude of second input signals, the control signal being generated after the multitude of timing signals are generated. The third unit is configured to generate a multitude of first signals from the multitude of timing signals after receipt of the control signal from the second unit. The image signal and the multitude of first signals are configured to drive the display when the timing controller is connected to the display.

Подробнее
Номер записи: 83
22-08-2013 дата публикации

TFT-LCD ARRAY SUBSTRATE AND DRIVING METHOD THEREOF

Номер: US20130215091A1
Автор: MA Zhanjie
Принадлежит: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.

The present invention relates to a TFT-LCD array substrate and a driving method thereof. The TFT-LCD array substrate comprises a substrate, on which pixel regions arranged in matrix are formed, a first pixel electrode and a first thin film transistor located in an odd column and a second pixel electrode and a second thin film transistor located in an even column are formed in each pixel region; a first gate line and a second gate line are formed in each pixel region, the first gate line is connected to gate of the first thin film transistor, and the second gate line is connected to gate of the second thin film transistor; one data line is formed in each pixel region, and the data line is connected to source of the first thin film transistor and source of the second thin film transistor, respectively. The present invention reduces the number of data lines and the number of data driving chips or the pins thereof, or, reduces the number of the gate lines and the number of scan driving chips or the pins thereof, and reduces the production cost of the TFT-LCD. 1. A TFT-LCD array substrate driving method , comprising:{'b': '11', 'step for generating a row scan signal for a pixel row;'}{'b': '12', 'step for outputting the row scan signal to a first gate line of the pixel row, the first gate line makes data lines output a first data signal to first pixel electrodes located in odd columns through first thin film transistor located in the odd columns; and'}{'b': '13', 'step for outputting the row scan signal to a second gate line of the pixel row, the second gate line makes the data lines output a second data signal to second pixel electrodes located in even columns through second thin film transistors located in the even columns.'}211. The TFT-LCD array substrate driving method according to claim 1 , wherein claim 1 , in the step claim 1 , a selection switching device generates the row scan signal for the pixel row after receiving a scan driving circuit signal;{'b': '12', ' ...

Подробнее
Номер записи: 84
22-08-2013 дата публикации

Display apparatus and method of driving the same

Номер: US20130215096A1
Автор: Tae-Jin Kim
Принадлежит: Samsung Display Co Ltd

A method of driving a display apparatus including a plurality of pixels that respectively store a voltage level corresponding to a data signal and respectively include a storage capacitor connected between a pixel electrode and a second common voltage electrode, the method including operations of determining whether image data of a current frame is changed, compared to image data of a previous frame, when the image data of the current frame is changed, storing a voltage level corresponding to the image data of the current frame in the storage capacitor of each of the plurality of pixels, and when the image data of the current frame is not changed, changing a level of a second common voltage applied to the second common voltage electrode of each of the plurality of pixels.

Подробнее
Номер записи: 85
29-08-2013 дата публикации

Display apparatus and method of driving the same

Номер: US20130222216A1
Автор: Bonghyun YOU, Dong-won Park, Jae Sung BAE, Kyung-Hoon Kim
Принадлежит: Samsung Display Co Ltd

A display apparatus includes a first pixel, a second pixel, a first selector, and a second selector. The first pixel includes first sub-pixels connected to a first gate line and respectively connected to corresponding data lines included in a first data line group and the second pixel includes second sub-pixels connected to a second gate line adjacent to the first gate line and respectively connected to corresponding data lines, one of which is included in a second data line group different from the first data line group. The first selector applies first data signals to one of odd-numbered data lines, and the second selector applies second data signals having a different polarity from the second data signals to one of even-numbered data lines.

Подробнее
Номер записи: 86
05-09-2013 дата публикации

Display Apparatus for Capturing Images and Operation Method Thereof

Номер: US20130229397A1
Автор: Jyun-Cheng Lin, Ru-Ji Hiseh, Tzu-Hsuan Huang
Принадлежит: Chunghwa Picture Tubes Ltd

The present invention provides a display apparatus for capturing images. The display apparatus includes a first substrate, a pixel array disposed on the first substrate, a thin film transistor array disposed in the pixel array and a photodetector array disposed in the pixel array. The pixel array includes a plurality of sub-pixels. The thin film transistor array controls image data transferred to the pixel array. When a light illuminates a sub-pixel of the pixel array, a photodetector corresponding to the sub-pixel of the photodetector array generates a leakage current in response to a gray-level of the light.

Подробнее
Номер записи: 87
05-09-2013 дата публикации

LIQUID CRYSTAL DISPLAY DEVICE, METHOD OF DRIVING LIQUID CRYSTAL DISPLAY DEVICE, AND ELECTRONIC APPARATUS

Номер: US20130229403A1
Автор: Teranishi Yasuyuki
Принадлежит: JAPAN DISPLAY WEST INC.

A liquid crystal display device includes an array of pixels each having a memory function, a driving section that supplies a common voltage to a counter electrode of a liquid crystal capacitor, and supplies one of a first voltage and a second voltage to a pixel electrode of the liquid crystal capacitor, the first voltage being the same as the common voltage, the second voltage reversing polarity every predetermined period, and an adjusting section that adjusts an amplitude of at least the second voltage. 1. A liquid crystal display device comprising:an array of pixels each having a memory function;a driving section that supplies a common voltage to a counter electrode of a liquid crystal capacitor, and supplies one of a first voltage and a second voltage to a pixel electrode of the liquid crystal capacitor, the first voltage being the same as the common voltage, the second voltage reversing polarity every predetermined period; andan adjusting section that adjusts an amplitude of at least the second voltage.2. The liquid crystal display device according to claim 1 , wherein:the common voltage is a voltage that reverses polarity every predetermined period;the first voltage is a voltage that is in phase with the common voltage; andthe second voltage is a voltage that is in opposite phase with the common voltage.3. The liquid crystal display device according to claim 2 , wherein the adjusting section adjusts an amplitude of each of the first voltage and the second voltage.4. The liquid crystal display device according to claim 3 , wherein the adjusting section adjusts a voltage value on a positive side of each of the first voltage and the second voltage by an amount equal to twice a DC voltage that is constantly applied to the liquid crystal capacitor.5. The liquid crystal display device according to claim 4 , wherein the voltage value on the positive side is set by a power supply voltage on a buffer that outputs each of the first voltage and the second voltage.6. The ...

Подробнее
Номер записи: 88
12-09-2013 дата публикации

Liquid crystal display

Номер: US20130235012A1
Автор: Yi-Zhong Sheu
Принадлежит: Hon Hai Precision Industry Co Ltd

A liquid crystal display (LCD) includes an LCD panel, a circuit module, a driving module, and a signal transmitting module. The circuit module outputs electrical driving signals. The driving module is connected to the LCD panel and drives the LCD panel to display images according to the driving signals. The signal transmitting module includes a laser emitter, an optical waveguide, and a laser receiver. The laser emitter is connected between the circuit module and the optical waveguide and converts the electrical driving signals to optical signals. The laser receiver is connected between the optical waveguide and the driving module and recovers and reconverts the optical signals into driving signals.

Подробнее
Номер записи: 89
19-09-2013 дата публикации

DRIVING METHOD OF AN ELECTRIC CIRCUIT

Номер: US20130241813A1
Автор: Tanaka Yukio
Принадлежит: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

A variation in threshold may be suppressed by structuring an analog switch by a MOS transistor and forming a signal synchronized to a clock by making the clock which is a common signal in continuity or discontinuity. An object of the present invention is to reduce the variation in the signal synchronized to the clock by the variation in threshold of the MOS transistor in a circuit which is synchronized to the clock. 1. (canceled)2. An active matrix display device comprising:a pixel portion formed over a substrate, and comprising a first TFT; and a flip-flop comprising a second TFT;', 'a first analog switch; and', 'a second analog switch;, 'a driver circuit formed over the substrate, and comprising a shift register comprisingwherein switching of the first analog switch and switching of the second analog switch are controlled depending on an output signal of the flip-flop, andwherein a signal through the first analog switch is an output signal of the shift register.3. An active matrix display device according to claim 2 ,wherein a first signal is output from a first output terminal of the flip-flop,wherein a second signal is output from a second output terminal of the flip-flop, andwherein the first signal and the second signal are always output at an opposite logic level.4. An active matrix display device according to claim 3 , wherein the flip-flop produces the first and second signals in response to one or more video signals.5. An active matrix display device according to claim 2 , wherein the first analog switch and the second analog switch comprise a MOS transistor or a MIS transistor.6. An active matrix display device according to claim 3 ,wherein a first control terminal of the first analog switch is electrically directly connected to the first output terminal,wherein a second control terminal of the second analog switch is electrically directly connected to the second output terminal.7. An active matrix display device according to claim 2 , wherein the flip- ...

Подробнее
Номер записи: 90
19-09-2013 дата публикации

Systems and methods for adjusting liquid crystal display white point using column inversion

Номер: US20130241900A1
Автор: CHENG Chen, Hopil Bae, Ming Xu, Shawn Robert Gettemy, Shih Chang Chang, Wei H. Yao, Zhibing Ge
Принадлежит: Apple Inc

Systems, methods, and devices for adjusting a white point of a liquid crystal display (LCD) using column inversion are provided. In one example, a method includes measuring white points of an electronic display that occur when the display employs different column inversion schemes. The display may be programmed to perform the column inversion scheme that produces a white point closest to a desired white point.

Подробнее
Номер записи: 91
19-09-2013 дата публикации

Signal processing device, liquid crystal apparatus, electronic equipment, and signal processing method

Номер: US20130241914A1
Автор: Hidehito Iisaka, Hiroyuki Hosaka, Taku Kitagawa
Принадлежит: Seiko Epson Corp

A signal processing device which is used in a liquid crystal apparatus, includes a detection portion that detects a boundary between a first pixel to which a first voltage lower than a first reference voltage is applied and a second pixel to which a second voltage higher than a second reference voltage is applied on the basis of signals for controlling voltages applied to a plurality of pixels, and a correction portion that corrects the first voltage correlated with the first pixel to a third voltage which is higher than the first voltage and lower than the second voltage correlated with the second pixel.

Подробнее
Номер записи: 92
19-09-2013 дата публикации

Display device, and display method therefor

Номер: US20130241917A1
Автор: Yoshinori Shibata
Принадлежит: Sharp Corp

When driving an eight-color display region, a source amplification circuit ( 15 ) supplies a voltage without using a source amplifier ( 7 ) by switching a switch (SW 0 ) to a contact point (A), and by turning off switches (SW 1 to SWn). On the other hand, when driving the full-color display region, by switching the switch SW( 0 ) to a contact point B, and by turning on one of the switches (SW 1 to SWn) (“n” is an integer), a voltage for displaying a desired gradation is supplied through the source amplifier 7.

Подробнее
Номер записи: 93
19-09-2013 дата публикации

Systems and methods for liquid crystal display column inversion using 3-column demultiplexers

Номер: US20130241958A1
Автор: CHENG Chen, Hopil Bae, Ming Xu, Shawn Robert Gettemy, Shih Chang Chang, Wei H. Yao, Zhibing Ge
Принадлежит: Apple Inc

Systems, methods, and devices for column inversion are provided. In one example, an electronic display may include a display panel having columns of pixels and display driver circuitry. The display driver circuitry may include source amplifiers and demultiplexers. Each demultiplexer may channel data output by at least one source amplifier to one of three columns of pixels. The display driver circuitry may drive the display panel according to a 3-column inversion scheme using one source amplifier per demultiplexer per frame of image data.

Подробнее
Номер записи: 94
26-09-2013 дата публикации

CONTROLLER AND DRIVER FEATURES FOR DISPLAY

Номер: US20130249964A1
Автор: Mathew Mithran Cheriyan, Sampsell Jeffrey B., Tyger Karen
Принадлежит: QUALCOMM MEMS Technologies, Inc.

The invention comprises systems and methods for controller and driver features for displays, and in particular, controller and driver features that relate to displays. In one embodiment, such a display includes at least one driving circuit and an array comprising a plurality of display elements, where the array is configured to be driven by the driving circuit, and where the driving circuit is programmed to receive video data and provide a subset of the received video data to the array based on a frame skip count. In some embodiments, the frame skip count is programmable or dynamically determined. In another embodiment, a method of displaying data on an array having a plurality of display elements comprises receiving video data comprising a plurality of frames, displaying selected frames based upon a frame skip count, measuring the change between each selected frame and a frame previous to the selected frame, and displaying non-selected frames if the measured change is greater than or equal to a threshold. 1. A display , comprising:at least one driving circuit; andan array comprising a plurality of display elements, the array being configured to be driven by the driving circuit,wherein the driving circuit is configured to receive video data and provide at least a subset of the received video data to the array based on a frame skip count, the frame skip count indicating a number of refresh periods to skip before refreshing any portion of the entire array, andwherein determination of the frame skip count comprises selecting the frame skip count based on a measure of a change in video content between a selected frame of the plurality of frames and one or more frames received previous to the selected frame.2. The display of claim 1 , wherein the frame skip count is programmable.3. The display of claim 2 , wherein the frame skip count is dynamically determined.4. The display of claim 1 , wherein the driving circuit is further configured to provide a subset of the video ...

Подробнее
Номер записи: 95
17-10-2013 дата публикации

Liquid Crystal Display Device and Display Panel Thereof

Номер: US20130271444A1
Автор: Cheng-Hung Chen, Jinjie WANG
Принадлежит: Shenzhen China Star Optoelectronics Technology Co Ltd

The present invention provides a liquid crystal display device and display panel thereof. The display panel includes data lines, scan lines disposed intersecting the data lines, pixel electrodes within area formed by two adjacent scan lines and two adjacent data lines, and thin film transistors disposed at intersecting points of scan lines and data lines; gate terminal of thin film transistor connected to scan line, source terminal of thin film transistor connected to data line and drain terminal of thin film transistor connected to pixel electrode. Overlapping area of drain terminal of thin film transistor and scan line forms parasitic capacitor C gs , and overlapping area of drain terminal of thin film transistor and scan line increases from signal input end to signal out end of a same scan line so that capacitance of parasitic capacitor increases along the same line.

Подробнее
Номер записи: 96
17-10-2013 дата публикации

Dual mode display device

Номер: US20130271445A1
Автор: Donchan Cho, Gilhwan YEO, Haeil Park, Jae Byung PARK, Sungtae Shin
Принадлежит: Samsung Display Co Ltd

A display device is capable of operating in a first mode and is capable of operating in a second mode. The display device includes a first image display unit that includes a photonic crystal layer, the photonic crystal layer being configured to be substantially transparent when the display device operates in the first mode and being configured to display at least an image when the display device operates in the second mode. The display device further includes a second image display unit overlapping the first image display unit and configured to turned on in the first mode to display at least an image and turned off in the second mode.

Подробнее
Номер записи: 97
24-10-2013 дата публикации

Display Panel and Display Device Having the Same

Номер: US20130278572A1
Автор: Lee Jae-Hoon, Lee Whee Won
Принадлежит: Samsung Display Co., Ltd.

A display panel includes a base substrate, a first gate line, a second gate line, first and second gate pads, a data line, a delay compensating line and a first delay compensating transistor. The first gate line extends in a first direction on the base substrate. The second gate line is substantially parallel to the first gate line. The first and second gate pads extend from first terminals of respective first and second gate lines. The data line extends in a second direction which is different from the first direction. The delay compensating line is substantially parallel to the data line. The first delay compensating transistor is electrically connected to the first and second gate lines and to the delay compensating line. 1. A display panel comprises:a base substrate;a first gate line extending in a first direction on the base substrate;a second gate line substantially parallel with the first gate line;a first and second gate pads extending from respective first terminals of the first and second gate lines;a data line extending in a second direction different from the first direction;a delay compensating line substantially parallel with the data line; anda first delay compensating transistor electrically connected to the first gate line, the second gate line and the delay compensating line.2. The display panel of claim 1 , wherein the first delay compensating transistor is responsive to a gate driving voltage that is applied to the second gate line claim 1 , and the first delay compensating transistor is configured to apply a delay compensating voltage from the delay compensating line to the first gate line.3. The display panel of claim 2 , wherein the first delay compensating transistor comprises:a first control electrode electrically connected to the second gate line;a first input electrode electrically connected to the delay compensating line; anda first output electrode electrically connected to the first gate line.4. The display panel of claim 2 , wherein ...

Подробнее
Номер записи: 98
31-10-2013 дата публикации

Lcd panel and pixel electrode thereof

Номер: US20130285891A1
Автор: Xin Zhang
Принадлежит: Shenzhen China Star Optoelectronics Technology Co Ltd

The present invention discloses a pixel electrode of a liquid crystal display (LCD) panel. The pixel electrode has a specific pattern or layout. The pixel electrode has a peripheral portion and branches surrounded by the peripheral portion. The pixel electrode further has at least one opening located inside a region surrounded by the peripheral portion. Each branch has a part connecting to the peripheral portion and said part has a width smaller than respective widths of other parts in each branch. The pixel electrode can improve the aperture rate of the LCD panel and suppress the appearance of disclination line at the center domain of the pixel.

Подробнее
Номер записи: 99
07-11-2013 дата публикации

DISPLAY DEVICE AND DRIVING METHOD THEREFOR

Номер: US20130293449A1
Автор: HAN Jong-Heon, LEE Sung-Il, Shin Seob
Принадлежит:

A display device, includes: a plurality of thin film transistors which comprise a gate electrode, a source electrode and a drain electrode; a plurality of pixel electrodes which are respectively connected to the drain electrode of the thin film transistors; a plurality of gate lines which are respectively disposed to the opposite edge parts of the pixel electrodes in a lengthwise direction of the pixel electrodes, and connected to the gate electrode of the thin film transistors; and a plurality of data lines which are respectively disposed to a single edge part of the pixel electrodes in a widthwise direction of the pixel electrodes, and connected to the source electrode of the thin film transistors, a pair of pixel electrodes adjoining each other to interpose the single data line therebetween, and a pair of thin film transistors which are respectively connected to the pair of pixel electrodes being connected with the same single data line. 1. A display device comprising: a second gate line extending in the first direction and configured to transmit a second gate signal;', 'a first transistor that comprises a first source electrode, a first drain electrode, and a first gate electrode that is electrically connected to the first gate line;', 'a second transistor that comprises a second source electrode, a second drain electrode, and a second gate electrode that is electrically connected to the second gate line;', 'a first pixel electrode disposed between the first gate line and the second gate line in a circuit diagram of the display device and electrically connected to the first drain electrode;', 'a second pixel electrode disposed between the first gate line and the second gate line in the circuit diagram of the display device and electrically connected to the second drain electrode;', 'a first data line extending in a second direction, disposed between the first pixel electrode and the second pixel electrode in the circuit diagram of the display device, and ...

Подробнее
Номер записи: 100