Control Means At Each Display Element Patents (Class 345/90)
  • Patent number: 9515117
    Abstract: The performance of a solid state image sensor which is formed by performing divided exposure that exposes the entire chip by a plurality of times of exposure and in which each of a plurality of pixels arranged in a pixel array portion has a plurality of photodiodes is improved. In the divided exposure performed when the solid state image sensor is manufactured, a dividing line that divides an exposure region is defined to be located between a first photodiode and a second photodiode aligned in a first direction in an active region in a pixel and is defined to be along a second direction perpendicular to the first direction.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: December 6, 2016
    Assignee: RENESAS ELECTRONICS CORPORATION
    Inventor: Masatoshi Kimura
  • Patent number: 9436049
    Abstract: The present disclosure relates to reducing bezel area of a flat display panel comprising a substrate with a non-display area surrounding a display area, the display area comprising common lines coupled to corresponding rows of pixels; and a gate driver formed in the non-display area. The display may further include a conductive sealing region formed in the non-display area and configured to supply a common line voltage; and a plurality of common pads formed within the conductive sealing region and each coupled to a corresponding one of the common lines to apply a common line voltage to the rows of pixels. Alternatively, the display may further include a vertical common line formed in the non-display area between the gate driver and the display area, the vertical common line extending from top to bottom of the non-display area and coupled to said common lines to apply a common voltage.
    Type: Grant
    Filed: November 15, 2013
    Date of Patent: September 6, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Seungho Heo, Byeongseong So
  • Patent number: 9429794
    Abstract: A pixel unit includes an active area pixel electrode and a passive area pixel electrode disposed in the same layer; a thin film transistor switch electrically connected to the active area pixel electrode; and a coupling electrode disposed in a different layer from the active area pixel electrode and electrically connected to the active area pixel electrode, wherein the coupling electrode and the passive area pixel electrode are arranged to be at least partly overlapped with each other to form a coupling capacitance. The present invention also discloses an array substrate comprising the pixel unit and a liquid crystal display comprising the array substrate.
    Type: Grant
    Filed: November 12, 2013
    Date of Patent: August 30, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Ying Shen, Zhizhong Tu, Rongge Sun
  • Patent number: 9430971
    Abstract: An electro-optical unit includes pixels provided correspondingly to portions where a plurality of pairs of data lines and a plurality of gate lines intersect with each other. Each of the pixels has an electro-optical device and a pixel circuit. The pixel circuit has a holding circuit connected with one of the plurality of pairs of data lines and one of the plurality of gate lines, and a selection circuit connected with an output of the holding circuit and the electro-optical device. The holding circuit is capable of sampling and holding a first image signal to be applied to one of the pair of the data lines, while sampling and holding a second image signal to be applied to the other of the pair of the data lines. The selection circuit is capable of outputting the first image signal and the second image signal to the electro-optical device selectively.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: August 30, 2016
    Assignee: SONY CORPORATION
    Inventors: Kouzi Tsukamoto, Kazuhiro Takeda, Takamitsu Urakawa, Naoki Andou, Kazutoshi Ono
  • Patent number: 9423661
    Abstract: A liquid crystal display includes: a bottom chassis, a backlight assembly received in the bottom chassis, a liquid crystal display panel including a thin film transistor substrate and a counter substrate disposed opposite the thin film transistor substrate, with the liquid crystal display panel being disposed so that the counter substrate faces the backlight assembly. The liquid crystal display further includes a mold structure disposed between the bottom chassis and the liquid crystal display panel, and configured to fasten the liquid crystal display panel to the bottom chassis, a driving connection line connected to the thin film transistor substrate and a shield case configured to cover the driving connection line to protect the driving connection line, and including a lateral side disposed corresponding to an edge of the liquid crystal display panel or disposed inside the edge of the liquid crystal panel.
    Type: Grant
    Filed: April 29, 2014
    Date of Patent: August 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hwan Jeon, Kee Byem Kim, Sang Hwan Lee, Jae Hun Chung, Ki Seok Cha, Ho Kyoon Kwon, Yun Soo Kim, Dae Ho Song, Young Dae Song, Sang A An
  • Patent number: 9418580
    Abstract: A display apparatus includes a gate line, a first data line which receives a first data signal, a second data line which receives a second data signal having a gray scale lower than a gray scale of the first data signal and a polarity opposite to the first data signal, a short gate line which receives a short gate signal, and a plurality of pixels, each pixel including a first sub-pixel which displays a first image corresponding to the first data signal, a second sub-pixel which displays a second image corresponding to the second data signal, and a switching device which electrically connects the first sub-pixel and the second sub-pixel in response to the short gate signal. A pixel alternately displays a display image and a black image in a unit of at least one frame.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Su Jeong Kim, Heeseop Kim, Kichul Shin
  • Patent number: 9405162
    Abstract: An active matrix display device is equipped with: a first auxiliary wiring line (700) that intersects a second common wiring line (230) through an insulation film, and that intersects with any of a plurality of first connecting wiring lines (900) through an insulating film; and a second auxiliary wiring line (710) that intersects, across an insulation film, any of a plurality of redundant portions (101), which are the other end portions of each of a plurality source wiring lines (100) and are located outside of a display region (60), and that, in a plan view, is positioned outside of a plurality of second lead-out wiring lines (250) and a first driver circuit, and is capable of being connected electrically to the second common wiring line (230).
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 2, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Isao Ogasawara, Masahiro Yoshida
  • Patent number: 9378668
    Abstract: A pixel, a display device including the same, and a driving method thereof. After the anode voltage of an organic light emitting diode (OLED) is discharged and reset, a first voltage corresponding to a data voltage applied to a storage capacitor is transmitted to a compensation capacitor. A voltage corresponding to the threshold voltage of the driving transistor is transmitted to the compensation capacitor. The data voltage is stored according to a data signal corresponding to the storage capacitor. The organic light emitting diode (OLED) emits light according to a driving current flowing to the driving transistor by the voltage stored to the compensation capacitor. Here, the light emitting steps of a plurality of pixels are concurrently generated, and a scan step and the light emitting step are temporally overlapped.
    Type: Grant
    Filed: February 16, 2012
    Date of Patent: June 28, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sang-Myeon Han
  • Patent number: 9354458
    Abstract: A voltage compensation circuit includes a voltage detection unit, a digital comparison correction unit, and a voltage adjustment unit. The voltage detection unit detects input voltage of the gate driver and conducts the input voltage to the digital comparison correction unit. The digital comparison correction unit compares the input voltage with reference voltage supplied by a controller for generating a correction controlling signal and conducting the correction controlling signal to the voltage adjustment unit. The voltage adjustment unit adjusts the input voltage and outputs a target voltage according to the correction controlling signal. The gate driver conducts the target voltage to an LCD panel. In this way, a scanning voltage conducted to a gate driver is adjusted. Therefore, a voltage drop will not exist between output voltages of different gate drivers, not only preventing mura from occurring in the LCD panel but also improving display quality of the LCD panel.
    Type: Grant
    Filed: August 6, 2013
    Date of Patent: May 31, 2016
    Assignee: Shenzhen China Star ptoelectronics Technology Co., Ltd
    Inventors: Junkai Chang, Chih-hao Wu
  • Patent number: 9348542
    Abstract: A display processing apparatus includes a first acquisition unit for acquiring light source information including a first relative position of a light source with respect to a display unit, a detection unit for detecting posture information of the display unit, a second acquisition unit for acquiring the posture information, a third acquisition unit for acquiring document data, a calculation unit for calculating a second relative position of the light source with respect to the display unit, a generation unit for generating a document display surface where a state in which a document surface displaying the document data is disposed in a virtual three-dimensional space and also the light source is disposed at the second relative position with respect to the document surface is converted to a two-dimensional image, and a display control unit for executing control to display a preview image on the display unit.
    Type: Grant
    Filed: June 3, 2015
    Date of Patent: May 24, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hiroyuki Yoshida, Masahiko Yoshimura, Risa Tsutsui, Rieko Ishihara, Yuki Kawata
  • Patent number: 9318045
    Abstract: An electro-optical device includes a display unit in which a plurality of pixel circuits is arranged; and a driving circuit that is disposed to be distanced from the display unit and outputs a signal for driving the plurality of pixel circuits. The display unit and the driving circuit are formed on a first surface of a semiconductor substrate. Each of the pixel circuits has a first transistor, the driving circuit has a second transistor, and the first transistor is formed in a first well and a first substrate potential is supplied. The second transistor is formed in a second well, the first well has the same conductivity type as the second well has, and the first well and the second well are separated from each other.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: April 19, 2016
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Toshiyuki Kasai
  • Patent number: 9311839
    Abstract: A method for driving a liquid crystal panel, a method for testing flicker and a liquid crystal display apparatus are disclosed. They relate to the technical field of liquid crystal display. By changing the driving mode of polarity inversion, it is achieved that the flicker test is performed on the liquid crystal panel with the Z inversion array arrangement on basis of the flicker test pattern of 1+2H. In two adjacent columns of pixel units in the plurality of pixel units, one column common data line is connected with the pixel electrodes located at the opposed sides of the common data line alternatively through the thin film transistors.
    Type: Grant
    Filed: December 9, 2013
    Date of Patent: April 12, 2016
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., Beijing BOE Display Technology Co., Ltd.
    Inventors: Yizhen Xu, Zhihua Sun, Xingji Wu, Jianming Wang, Liang Zhang
  • Patent number: 9293076
    Abstract: This disclosure provides systems, methods and apparatus for an arrangement of pixels and interconnects in a display. In one aspect, polarities of pixels may be in a dot inversion configuration, or checkerboard pattern, to reduce the visibility of flicker. Various interconnect alternatively couple between modules in different columns or rows to provide dot inversion.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: March 22, 2016
    Assignee: QUALCOMM MEMS Technologies, Inc.
    Inventors: Edward Keat Leem Chan, Bing Wen, Cheonhong Kim, Wilhelmus Johannes Robertus Van Lier, Chih-Hsiang Ho, Rihui He, Ming-Hau Tung, Alok Govil, Jae Hyeong Seo
  • Patent number: 9294192
    Abstract: A method for bi-directionally transmitting digital optical signals over an optical transmission link in which a first optical transmit signal is created according to a first binary digital signal in such a way that the bit information of the first binary digital signal is included in first sections of the symbol interval of the first optical transmit signal. A second optical transmit signal is created by creating an optical wavelength reuse signal using the first optical transmit signal received at the second end of the optical transmission link, the optical wavelength reuse signal being modulated according to a second digital signal in such a way that the bit information of the second digital signal is included in second sections of the symbol interval of the first optical transmit signal received.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: March 22, 2016
    Assignee: ADVA Optical Networking SE
    Inventors: Michael Eiselt, Klaus Grobe, Jörg-Peter Elbers, Helmut Griesser
  • Patent number: 9291868
    Abstract: A liquid crystal display includes a plurality of pixels arranged in a matrix, each pixel having a first sub-pixel electrode and a second sub-pixel electrode. A first thin film transistor is connected to the first sub-pixel electrode. A second thin film transistor is connected to the second sub-pixel electrode. A third thin film transistor is connected to the second sub-pixel electrode. A fourth thin film transistor is connected to a drain electrode of the third thin film transistor. A first gate line is connected to the first thin film transistor and the second thin film transistor. A data line is connected to the first thin film transistor and the second thin film transistor. A second gate line is connected to the third thin film transistor. A third gate line is connected to the fourth thin film transistor.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: March 22, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang-Soo Lee, Kee-Bum Park, Yun Jae Park, Jong Jae Lee, Hoi Sik Moon
  • Patent number: 9264647
    Abstract: Provided is technology avoiding situation where content cannot be viewed in the middle, due to insufficient amount of power remaining in a battery, in a television having a monitor unit separated from a tuner unit. A location free TV 1 includes an STB 10 and a monitor unit 30 separately, as independent configurations. Broadcasting received by the STB 10 is wirelessly transmitted to the monitor unit 30, and displayed on the monitor unit 30. The STB 10 is connected to an external recorder 94 and an external storage 96 in a recordable, playable state. Connection to a network storage 92 is performed via a network 90 in a recordable, playable state. The location free TV 1 has general TV functions, and, when insufficient amount of power remains in a battery of the monitor unit 30, a viewed program is recorded in the external recorder 94 etc., via the STB 10.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: February 16, 2016
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masayuki Etoh
  • Patent number: 9250735
    Abstract: A touch sensor integrated display device is provided comprising gate lines and data lines formed on a substrate to be intersected with each other, a plurality of pixel electrodes formed at intersections between the gate lines and the data lines, and a common electrode formed to overlap the plurality of pixel electrodes through an insulating film disposed between the common electrode and the plurality of pixel electrodes, wherein the common electrode includes at least two touch electrodes, each of which is connected to at least one of signal lines arranged in one of a first direction and a second direction crossing the first direction.
    Type: Grant
    Filed: December 27, 2011
    Date of Patent: February 2, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: Cheolse Kim, Buyeol Lee, Sunjung Lee, Sangsoo Hwang, Yoonhwan Woo, Manhyeop Han
  • Patent number: 9241154
    Abstract: The present invention provides an LCD panel and a display method compatible with a 2D and a 3D display mode. The 3D display mode comprises a shutter 3D and a polarized 3D display mode. The LCD panel comprises multiple pixels, and each pixel comprises: a substrate, a data line, scan line, a common electrode line, 2D/3D switching control signal line, and a pixel unit. The pixel unit comprises: a first to a fourth switching elements, a first pixel electrode, and a second pixel electrode. The present invention, through disposing a 2D/3D switching control signal line to achieve switching of every operation mode, improve the color shift issue at the large viewing angle, increase aperture ratio, and reduce energy consumption at the same time.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: January 19, 2016
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Zuomin Liao
  • Patent number: 9236018
    Abstract: A display device includes a display portion having gate and source signal lines, and a plurality of pixels, a gate driver that outputs gate signals, a source driver that outputs source signals, and a controller that causes the display portion to display an image at a frame frequency. The controller sets the frame frequency to a first frame frequency F1 when the image is a moving picture, and the controller sets the frame frequency to a second frame frequency F2 lower than F1 when the image is a still picture. The gate driver outputs the gate signals to the gate signal lines in an aligned order of gate signal lines in a second direction when the frame frequency is F1, and the gate driver outputs the gate signals to the gate signal lines in different order from the array order when the frame frequency is F2.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: January 12, 2016
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Hideyuki Nakanishi, Yoshihisa Ooishi, Sachiko Yamazaki
  • Patent number: 9231032
    Abstract: An organic electroluminescent device is disclosed which includes: first and second pixel regions defined by first and second gate lines and data lines crossing each other; first sub-pixels arranged in the first pixel region close to the first gate line; first driving cells arranged between the first sub-pixels; second sub-pixels arranged in the second pixel region close to the second gate line; and second driving cells arranged between the second sub-pixels.
    Type: Grant
    Filed: August 6, 2014
    Date of Patent: January 5, 2016
    Assignee: LG Display Co., Ltd.
    Inventors: A Ryoung Lee, Hong Myeong Jeon, Geum Young Lee
  • Patent number: 9214127
    Abstract: Methods and devices employing charge removal circuitry are provided to reduce or eliminate artifacts due to a bias voltage remaining on an electronic display after the display is turned off. In one example, a method may include connecting a pixel electrode of a display to ground through charge removal circuitry while the display is off (e.g., using depletion-mode transistors that are active when gates of the depletion-mode transistors are provided a ground voltage). When a corresponding common electrode is also connected to ground, a voltage difference between the pixel electrode and common electrode may be reduced or eliminated, preventing a bias voltage from causing display artifacts in the pixel.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: December 15, 2015
    Assignee: APPLE INC.
    Inventors: Abbas Jamshidi-Roudbari, Cheng-Ho Yu, Hopil Bae, Shih Chang Chang, Ting-Kuo Chang
  • Patent number: 9214106
    Abstract: Provided are a photo sensor, a display device including the same, and a driving method thereof. The photo sensor includes: an amplifying element including an input terminal coupled to a scan line for receiving a scan signal, an output terminal configured to output a sensing signal, and a control terminal connected to a first node; a sensing capacitor connected with the first node; a photosensitive sensing element including a control terminal connected with a terminal of a first control signal, an output terminal connected with the first node, and an input terminal; and a reset element connected with the output terminal of the amplifying element and resetting the output terminal of the amplifying element to second voltage according to a reset control signal.
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: December 15, 2015
    Assignees: HOSEO UNIVERSITY ACADEMIC COOPERATION FOUNDATION, SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Youn Han, Byung Seong Bae, Jun Ho Song, Sung Hoon Yang, Ho Sik Jeon
  • Patent number: 9196188
    Abstract: An image processing unit includes a filter unit which performs high frequency emphasis processing on a image signal of a first sub-frame among a plurality of sub-frames, and performs high frequency suppression processing on a image signal of a second sub-frame different from the first sub-frame; and a level adjustment unit which performs level adjustment processing on the image signal of the first sub-frame, and performs level adjustment processing different from the level adjustment processing on the image signal of the second sub-frame. Alight source control unit controls light quantity of a light source during a period of a sub-frame in which the image signal subjected to the level adjustment processing is outputted, in accordance with the level adjustment performed on the sub-frame.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: November 24, 2015
    Assignee: Canon Kabushiki Kaisha
    Inventor: Takushi Kimura
  • Patent number: 9140949
    Abstract: Embodiments of the invention provide an array substrate, a display panel, a display device and a method for driving an array substrate. The array substrate includes gate lines, data lines, pixel TFTs and pixel electrodes and compensation capacitors on the array substrate; in every two adjacent rows of gate lines in at least a part of the rows on the array substrate, pixel TFTs connected with one gate line are a first type of TFTs, and pixel TFTs connected with an other gate line are a second type of TFTs; and in the at least a part of the rows, each of the pixel electrodes is arranged correspondingly with one of the compensation capacitors, and each of the compensation capacitors has one end electrically connected to the pixel electrode corresponding thereto and another end electrically connected to a gate line in a next row.
    Type: Grant
    Filed: May 20, 2014
    Date of Patent: September 22, 2015
    Assignees: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD., TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Qingjun Lai, Wei Li
  • Patent number: 9134575
    Abstract: A liquid crystal lens, a manufacturing method thereof, an operation method thereof and a photoelectric device are provided. The lens comprises: a first electrode layer; a first transparent substrate; a second transparent substrate, provided to a lower surface of the first electrode layer and opposite to the first transparent substrate; a second electrode layer, provided to an upper surface of the first transparent substrate and comprising a first sub-electrode-layer and a second sub-electrode-layer which are separated from each other; and a liquid crystal layer provided between the second transparent substrate and the second electrode layer.
    Type: Grant
    Filed: May 7, 2012
    Date of Patent: September 15, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jaegeon You, Juan Chen
  • Patent number: 9128713
    Abstract: Embodiments of the invention generally provide an input device that includes one or more source drivers that are coupled to a display screen. Specifically, one of the source drivers may be coupled to a plurality of source lines (or column lines) on the display screen which the source driver uses to set voltages associated with one or more sub-pixels that determine the color displayed by the pixel. When driving voltages onto subsequent source lines, the input device may precharge the source driver using a latent voltage stored on the source lines. That is, if the source line was previously driven to a particular voltage by the source driver, the input device uses that latent voltage to precharge the output of the source driver to the same voltage. The source driver may then adjust its output to a desired voltage and drive the desired voltage onto the source line and sub-pixel.
    Type: Grant
    Filed: January 15, 2013
    Date of Patent: September 8, 2015
    Assignee: SYNAPTICS INCORPORATED
    Inventors: Imre Knausz, Brian Mott, John Childs
  • Patent number: 9105237
    Abstract: An organic light emitting display including a plurality of pixel circuits and a data driver, the organic light emitting display including a power supplier electrically coupled to the organic light emitting display panel, a voltage detecting unit electrically coupled to the organic light emitting display panel and adapted to detect a voltage supplied from the power supplier, and a controller electrically coupled to the voltage detecting unit and adapted to output a control signal to at least one of the power supplier and the data driver based on the detected voltage.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: August 11, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventor: Sangmoo Choi
  • Patent number: 9076400
    Abstract: A memory-type liquid crystal display device includes transistors (N1, N2), retention electrodes (MRY), refresh output control sections (RS1), and capacitors (Cb1). In a data retention period, an electric potential of each of the retention electrodes (MRY) is changed via a corresponding one of the capacitors (Cb1) by changing an electric potential level of a retention capacitor wire signal that is supplied to a corresponding CS line (CSL(i)). Each of the refresh output control sections (RS1) receives the electric potential thus changed of a corresponding one of the retention electrodes (MRY) via the input section and controls an electric potential of a corresponding pixel electrode (PIX) in accordance with the electric potential thus changed.
    Type: Grant
    Filed: December 12, 2011
    Date of Patent: July 7, 2015
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Eiji Matsuda, Yasushi Sasaki, Yuhichiroh Murakami, Seijirou Gyouten, Shuji Nishi, Makoto Yokoyama
  • Patent number: 9047831
    Abstract: A liquid crystal display panel and a display driving method are disclosed. The liquid crystal display panel includes data lines, scan lines, common electrode lines, pixel units, voltage buffer circuits and common electrode controller units. The pixel units are coupled to corresponding data lines and scan lines. Each pixel unit includes a storage capacitor. The pixel units on the same row are coupled to the same common electrode line. The common electrode controller units drive the common electrode lines to re-charge each pixel unit via the storage capacitor. The voltage buffer circuits are coupled between the common electrode controller units and the common electrode lines. The voltage buffer circuits are used for maintaining the voltage levels on each of the common electrode lines when each of the pixel units is not in their data writing period.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: June 2, 2015
    Assignees: AU OPTRONICS (SUZHOU) CORP., LTD., AU OPTRONICS CORPORATION
    Inventors: Xiao-Lin Wang, Jun Zhang
  • Patent number: 9035862
    Abstract: An electro-optic device includes pixel electrodes; a data line block for providing an image signal to a first pixel electrode group and a second pixel electrode group in one column of pixel electrodes arrayed in a line in a first direction, the data line block being configured by data line pairs in which a pair of a first data line and a second data line extending in the first direction is arranged for each column; an image signal supplying unit for sequentially providing an image signal in time-series to each of the data line pairs configuring the data line block from one end of each of the data line pairs; and an inspection voltage supplying unit for supplying an inspection voltage from another end of each of the data line pairs each to the data line block and separately to each of the first data line and the second data line.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: May 19, 2015
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Jun Sato
  • Patent number: 9024853
    Abstract: The present invention provides a liquid crystal device drive circuit, which includes a gate driver, a source driver, a plurality of gate lines, and a plurality of data lines. The gate lines and data lines define a plurality of pixel units. Each pixel unit includes a thin-film transistor, a common electrode, a pixel electrode electrically connected to the thin-film transistor, a storage capacitor, and a timer switch. The pixel electrode is electrically connected to the thin-film transistor. The common electrode and the pixel electrode constitute a liquid crystal capacitor. The storage capacitor is connected in parallel to the liquid crystal capacitor. The thin-film transistor includes a gate terminal and a source terminal. The gate terminal is electrically connected to the gate line via the timer switch. The thin-film transistor is electrically connected to the gate driver and the source driver respectively by the gate lines and the data lines.
    Type: Grant
    Filed: November 8, 2012
    Date of Patent: May 5, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventors: Gang Yu, Yubo Gu, Pei Jia, Liuyang Yang
  • Patent number: 9013388
    Abstract: A liquid crystal display device (1) includes a liquid crystal panel having a plurality of pixels disposed in a matrix form, and a patterned retarder having retarder plates (RR) and retarder plates (RL) formed at positions corresponding to odd-numbered rows and even-numbered rows, respectively, of the liquid crystal panel. Among sub pixels disposed in the pixels positioned in the n-th row, a sub pixel electrode of a boundary-proximity sub pixel, which is positioned closest to a boundary between the associated retarder plate (RR) and the associated retarder plate (RL), is connected to an auxiliary bus line via a transistor having a gate electrode connected to a gate bus line in the (n?1)-th or prior row. In the second display mode, gate signals are sequentially supplied to the gate bus lines in order from the first to the N-th rows, and, in the first display mode, gate signals are sequentially supplied to the gate bus lines in order from the N-th to the first rows.
    Type: Grant
    Filed: September 15, 2011
    Date of Patent: April 21, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shohei Katsuta, Tsuyoshi Kamada, Seiji Ohhashi
  • Patent number: 9013384
    Abstract: Systems, methods, and devices are provided to calibrate an electronic display to reduce or eliminate mura artifacts. Such mura artifacts may be due to differential behavior of multiple common voltage layers (VCOMs) of the display. One method for reducing or eliminating such muras may involve setting pixels of an electronic display to a gray level and setting an operating parameter of the liquid crystal display to a starting value. An image of the pixels may be captured. Using the image, an average luminance of the pixels may be determined and the image may be amplified around the average luminance to enhance contrast of the image. When the amplified image substantially does not indicates the presence of a mura, the value of the operating parameter may be stored in the electronic display.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: April 21, 2015
    Assignee: Apple Inc.
    Inventors: Ahmad Al-Dahle, David A. Stronks, Hopil Bae
  • Publication number: 20150102987
    Abstract: The present disclosure provides a non-overlap data transmission method for a liquid crystal display (LCD). The non-overlap data transmission method includes obtaining an entire fame image data; dividing the entire frame image data into a plurality of image data segments and individually sending the image data segments to a plurality of display processing units at the same time, wherein each of the image data segments is sent to one of the display processing units and image data of each image data segment does not overlap with image data of the other image data segments; and mutually sending image data of the image data segments through the display processing units.
    Type: Application
    Filed: April 1, 2014
    Publication date: April 16, 2015
    Applicant: NOVATEK Microelectronics Corp.
    Inventors: Chih-Yung Hsu, Kai-I Dai, Jie-Jung Huang
  • Patent number: 9007354
    Abstract: Provided is a display device including a panel, a driving circuit board connected to the panel, a driving unit mounted on the driving circuit board and driving the panel, a printed circuit board connected to the driving circuit board, and a memory unit mounted on the printed circuit board and storing calibration data for calibrating a data signal supplied to the panel.
    Type: Grant
    Filed: July 15, 2011
    Date of Patent: April 14, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Joonha Park, Jaewoo Lee, Hyejin Kim, Juseong Park
  • Publication number: 20150091788
    Abstract: There is provided a liquid crystal display device that enables increasing the capacitance between a pixel electrode and a common electrode without bringing about a significant decrease in the pixel aperture ratio. An In-Plane Switching LCD device in which a drain signal is supplied from one drain signal line to two pixel columns is configured such that there is a section having no drain signal line between adjacent pixels and a source electrode which is connected to a pixel electrode of a thin-film transistor extends into a contiguous pixel region that does not serve as an effective pixel region to provide one electrode of a capacitive element. A common electrode is formed in each pixel and the one electrode of the capacitive element is laid overlapping the common electrode with an insulation film intervening therebetween.
    Type: Application
    Filed: December 9, 2014
    Publication date: April 2, 2015
    Inventor: Takahiro NAGAMI
  • Patent number: 8994635
    Abstract: The invention provides an image display device capable of reducing the transmission delay of a scanning signal. A plurality of scanning signal lines are wired in one pixel circuit row. Pixel circuits of the pixel circuit row are connected to any of the plurality of scanning signal lines.
    Type: Grant
    Filed: June 5, 2009
    Date of Patent: March 31, 2015
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Kenta Kajiyama, Takeshi Izumida, Norihiro Nakamura, Naoki Tokuda
  • Patent number: 8994627
    Abstract: A liquid crystal display includes data lines extending in a first direction, gate lines extending in a second direction between a first side and a second side of the liquid crystal display and crossing the data lines, and common voltage lines crossing the data lines and parallel with the gate lines. The gate lines include even gate lines coupled to a gate driver at near the first side and odd gate lines coupled to the gate driver at near the second side. The common voltage lines include even common voltage lines coupled to a common voltage supplier at near the second side and odd common voltage lines coupled to the common voltage supplier at near the first side.
    Type: Grant
    Filed: March 14, 2008
    Date of Patent: March 31, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Minwoo Kim, Minhyung Kim
  • Patent number: 8995707
    Abstract: Among other things, a method is disclosed comprising: receiving image data representing an image; processing the data to generate orientation information; processing the data using the orientation information to measure a quantity called local phase in a direction perpendicular to the orientation of a putative vessel; using the phase measurements from three collinear image locations or from two locations to detect the centerline of a symmetric image structure, such as a blood vessel, and to locate a center-point defined by the intersection of the centerline with the line created by the measurement locations.
    Type: Grant
    Filed: January 21, 2011
    Date of Patent: March 31, 2015
    Assignee: UCL Business PLC
    Inventors: Jeffrey Ng Sing Kwong, Alistair Richard Fielder, Clare Margaret Wilson
  • Publication number: 20150070257
    Abstract: A computer program product (CPP) for controlling a liquid crystal display (LCD) includes code for applying a test voltage to each liquid crystal element (LCE) disposed in an addressable array forming the LCD, and code for detecting an amount of light received by photosensors while applying the test voltage applied to the LCEs, wherein each photosensor is aligned behind and logically associated with one of the LCEs. The CPP further includes code for applying selected voltage levels to each LCE to display an image, and code for controlling an amount of backlight produced by backlighting elements in an addressable array while the image is displayed. Each backlighting element is aligned behind and logically associated with one LCE, and at least one backlighting element is controlled to compensate for a difference between the amount of light detected by the photosensor logically associated with at least one LCE and the other photosensors.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: International Business Machines Corporation
    Inventors: Keith M. Campbell, William M. Megarity, Luke D. Remis, Gregory D. Sellman, Christopher L. Wood
  • Patent number: 8976099
    Abstract: A charge storage circuit for a pixel comprises a charge storage node. First and second series-connected transistors (8,10) are provided for selectively isolating the charge storage node from a first voltage input (9,SL) for supplying a data voltage. The circuit is provided with a voltage follower circuit for replicating a voltage at the charge storage node (12) at another node in the circuit thereby to reduce the drain-source voltage across the second transistor (10). The first transistor forms part of the voltage follower circuit.
    Type: Grant
    Filed: June 2, 2011
    Date of Patent: March 10, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Sunay Shah, Patrick Zebedee, Benjamin James Hadwen, Michael James Brownlow
  • Patent number: 8975632
    Abstract: Semiconductor elements deteriorate or are destroyed due to electrostatic discharge damage. The present invention provides a semiconductor device in which a protecting means is formed in each pixel. The protecting means is provided with one or a plurality of elements selected from the group consisting of resistor elements, capacitor elements, and rectifying elements. Sudden changes in the electric potential of a source electrode or a drain electrode of a transistor due to electric charge that builds up in a pixel electrode is relieved by disposing the protecting means between the pixel electrode of the light-emitting element and the source electrode or the drain electrode of the transistor. Deterioration or destruction of the semiconductor element due to electrostatic discharge damage is thus prevented.
    Type: Grant
    Filed: December 30, 2013
    Date of Patent: March 10, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masahiko Hayakawa, Yoshifumi Tanada, Mitsuaki Osame, Aya Anzai, Ryota Fukumoto
  • Patent number: 8975830
    Abstract: A light emitting system includes a light emitting device having a forward voltage, and an optical power control device. The optical power control device includes a control signal module and a current controller. The control signal module generates a control signal according to the forward voltage, and the current controller permits flow of a driving current through the light emitting device according to the control signal.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: March 10, 2015
    Assignee: National Chi Nan University
    Inventors: Tai-Ping Sun, Hsiu-Li Shieh, Yung-Hsin Lu
  • Patent number: 8976166
    Abstract: A pixel includes an organic light emitting diode (OLED), a driving transistor for controlling a current supplied to the OLED, a first transistor for transmitting a data signal to the driving transistor, and a capacitor coupled between the driving transistor and the first transistor. A driving method of the pixel includes initializing a gate voltage of the driving transistor, compensating a threshold voltage of the driving transistor, and transmitting a data signal to the driving transistor through the capacitor. A period for compensating the threshold voltage is longer than a period for transmitting the data signal to the driving transistor. Sufficient time to compensate the threshold voltage of the driving transistor of the pixel may be obtained under high resolution and high frequency driving to realize a display device of high image quality.
    Type: Grant
    Filed: September 15, 2010
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventor: Sam-Il Han
  • Publication number: 20150062105
    Abstract: A display device includes a timing controller configured to generate an image signal including a pre-emphasis voltage, a data driver configured to generate a plurality of data signals based on the image signal, and provide information about whether the image signal is normally received or not to the timing controller, and a display panel configured to receive the plurality of data signals and display images corresponding to the received data signals, where when the data driver fails to normally receive the image signal, the timing controller increases a level of the pre-emphasis voltage.
    Type: Application
    Filed: January 22, 2014
    Publication date: March 5, 2015
    Applicant: Samsung Display Co. Ltd.
    Inventors: Dong Won PARK, Cheol Woo PARK, Bong Hyun YOU
  • Publication number: 20150061986
    Abstract: A liquid crystal display includes pixels which is disposed in row and column directions, respectively includes pixel electrodes, and arranged along a first pixel column to a sixth pixel column, gate lines including pairs of two adjacent gate lines for each pixel row in the row direction, data lines including a first data line at a left side of the first pixel column, a second data line between the second and third pixel columns, a third data line between the fourth and fifth pixel columns, and a fourth data line at a right side of the sixth pixel column; and common voltage lines including a first common voltage line between the first and second pixel columns, a second common voltage line between the third and fourth pixel columns, and a third common voltage line between the fifth and sixth pixel columns.
    Type: Application
    Filed: February 24, 2014
    Publication date: March 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Min-Chul SONG, Sung Man KIM, Jun Ho SONG, Hwa Yeul OH, Yu Jin LEE, Young Je CHO
  • Patent number: 8970635
    Abstract: The present disclosure is related to the liquid crystal display device and the driving method for selectively controlling the average picture level. The liquid crystal display device of the present disclosure comprises: a brightness extractor separating a brightness and a color difference information from an input image; an user interface receiving a limit APL; an APL restrictor calculating an average APL of the input image based on the brightness from the brightness extractor, modulating the brightness of the input image such that the average APL is restricted lower than the limit APL when the average APL of input image is higher than the limit APL, and converting the modulated brightness and the color difference information into a RGB data; and a driving circuit representing the RGB data from the APL restrictor on a liquid crystal display panel.
    Type: Grant
    Filed: November 24, 2008
    Date of Patent: March 3, 2015
    Assignee: LG Display Co., Ltd.
    Inventor: Hoyoung Jung
  • Patent number: 8963895
    Abstract: A ubiquitously mountable image display system includes a shape-reconfigurable display screen component to which is attached a plurality of circuit modules each having at least one light source. The shape-reconfigurable display screen component is formed of a material that accommodates flexing of the display screen component without creating a perceivable aberration in separation distance between two or more picture elements of an image that is rendered upon a viewing plane of the display screen component when light from the plurality of light sources is directed towards the viewing plane.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Nano Lumens Acquisition Inc.
    Inventors: Richard Cope, Aris Silzars
  • Patent number: 8957842
    Abstract: A pixel circuitry of a display device is provided to make a voltage level transmitted to a display element be close to a voltage level of a received data voltage, such that the pixel circuitry faithfully transmits the data voltage to the display element. The pixel circuitry of a display device includes a first write switch, a first write memory unit, a first voltage following module, and a display element. The first voltage following module is to detect a first data voltage stored in the first write memory unit, and to generate a corresponding first output voltage at a terminal of the display element based on a detection result. A first output terminal of the first voltage following module is controlled by a switching voltage.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: February 17, 2015
    Assignee: Himax Display, Inc.
    Inventors: Cheng-Chi Yen, Wei-Ting Lan, Hon-Yuan Leo
  • Patent number: 8952949
    Abstract: Pixel electrodes (17a and 17b) are provided in a pixel (101), and the pixel (101) is associated with a data signal line (15x), scanning signal lines (16a and 16b), and transistors (12a and 12b). One pixel electrode (17a) is connected to the data signal line (15x) via the transistor (12a). The other pixel electrode (17b) is connected to the pixel electrode (17a) via a capacitor (C101) and is connected to the data signal line (15x) via the transistor (12b). Storage capacitance (Cha and Chb) is formed between the pixel electrodes (17a and 17b) of the pixel (101) and a scanning signal line (16d) associated with a pixel (100). Thus, a configuration of a liquid crystal display device of a capacitively coupled pixel division mode is proposed in which a decline in display quality caused by image sticking of a sub-pixel is less likely to occur.
    Type: Grant
    Filed: March 15, 2010
    Date of Patent: February 10, 2015
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshihide Tsubata