Split Pixels Patents (Class 349/144)
  • Patent number: 8643816
    Abstract: Provided is a liquid crystal display (LCD), the LCD includes: an insulating substrate; a first gate line and a second gate line which are formed on the insulating substrate and extend parallel to each other; a data line formed on the insulating substrate, insulated from the first and second gate lines, and crosses the first and second gate lines; a first subpixel electrode connected to the first gate line and the data line by a first switching device and includes a plurality of first fine protruding patterns at an edge thereof; and a second subpixel electrode connected to the second gate line and the data line by a second switching device and includes a plurality of second fine protruding patterns at an edge thereof, wherein the first fine protruding patterns are separated from each other by a first gap, and the second fine protruding patterns are separated from each other by a second gap, wherein the sum of a width of the first gap and a width of each of the first fine protruding patterns is greater than the
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: February 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Gyu Kim, Sahng-Ik Jun, Seung-Soo Baek, Kee-Bum Park
  • Patent number: 8643817
    Abstract: A display panel includes a first substrate including a plurality of pixels, a second substrate facing the first substrate, and a liquid crystal layer disposed between the first and second substrates. Each pixel includes a data line, a gate line insulated from the data line, a first signal line insulated from the data line, a second signal line insulated from the data line, a switching device connected to the data line and the gate line, a first pixel electrode connected to the switching device, and a second pixel electrode connected either the first signal line or the second signal line. The display panel displays an image according to an electric field generated between the first and second pixel electrodes.
    Type: Grant
    Filed: May 12, 2011
    Date of Patent: February 4, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se Hyoung Cho, Woo-Sung Sohn, Donggyu Kim
  • Patent number: 8643577
    Abstract: A display electrode structure and the repairing method thereof are described. The display electrode structure includes a display electrode and at least one opening formed on the display electrode and extending toward the inside of the display electrode so as to easily repair a display electrode defect thereon. The display electrode repairing method uses a laser beam to cut a display electrode from the opening and along the metal line to separate the display electrode from an adjacent display electrode so as to remove a short circuit between the display electrode and the adjacent display electrode.
    Type: Grant
    Filed: March 3, 2008
    Date of Patent: February 4, 2014
    Assignee: E Ink Holdings Inc.
    Inventors: Chih-Chien Chiou, Yu-Chen Hsu, Chi-Ming Wu
  • Patent number: 8643802
    Abstract: A pixel array including a plurality of scan lines, data lines, and sub-pixels is provided. Each of the sub-pixels arranged in the nth row includes a first switch, a first pixel electrode, a second switch, a third switch, and a second pixel electrode. The first switch and the second switch are electrically connected to the nth scan line and the mth data line. The first switch and the first pixel electrode are electrically connected. The second switch has a first signal output terminal. The third switch is electrically connected to the (n+i)th scan line. The third switch has a signal input terminal electrically connected to the first signal output terminal and a second signal output terminal. The first signal output terminal is electrically insulated from the first pixel electrode and the second pixel electrode. The first signal output terminal extends to the underneath of the second pixel electrode.
    Type: Grant
    Filed: November 26, 2010
    Date of Patent: February 4, 2014
    Assignee: Au Optronics Corporation
    Inventors: Tien-Lun Ting, Yu-Ching Wu, Wen-Hao Hsu, Yi-Cheng Li
  • Patent number: 8638412
    Abstract: The present invention discloses a thin-film transistor (TFT) liquid crystal display device, a substrate, and a manufacturing method thereof. The TFT substrate includes: a glass substrate and signal lines, scan lines, a first pixel electrode, a second pixel electrode, a common electrode, and the TFT. The first pixel electrode and the second pixel electrode at least partially overlap each other. The second pixel electrode forms a plurality of horizontally arranged slits and the first pixel electrode forms a hollow structure in a portion overlapping the second pixel electrode. Through the above method, the present invention increases transmittance, improve view angle color shift, and improve the quality of image.
    Type: Grant
    Filed: February 23, 2012
    Date of Patent: January 28, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Cheng-Hung Chen
  • Patent number: 8634043
    Abstract: A transflective liquid crystal display includes a liquid crystal panel including a first substrate, a second substrate, a liquid crystal layer, the first and second substrates arranged to face each other and the liquid crystal layer between the first and second substrates, a reflection polarizer and an absorption polarizer at opposing outer sides of the liquid crystal panel, and a backlight unit at an outer side of the liquid crystal panel and supplying light to the inside of the liquid crystal panel. A reflective axis of the reflection polarizer is parallel with a transmissive axis of the absorption polarizer, the transmissive axis of the reflection polarizer perpendicularly crosses the transmissive axis of the absorption polarize, and the liquid crystal layer includes liquid crystal molecules and a dichroic dye.
    Type: Grant
    Filed: November 1, 2011
    Date of Patent: January 21, 2014
    Assignees: Samsung Display Co., Ltd., Pusan National University Industry-University Cooperation Foundation
    Inventors: Byoung Ho Cheong, Jae-Ho You, Soon-Joon Rho, Jae-Chang Kim, Tae-Hoon Yoon, Ki-Han Kim, Hye-Jung Jin
  • Patent number: 8634035
    Abstract: A liquid crystal display device includes a pixel region defined by a gate line and a data line, a thin film transistor in the pixel region, and a storage line in the pixel region. The storage line includes a first portion extending in a direction parallel to the gate line, and a second portion split from the first portion in a direction toward the pixel electrode and extending in a direction parallel to the data line. A common electrode corresponds to the pixel region on a second substrate combined with a first substrate to accommodate a liquid crystal layer, and an opening in the common electrode corresponds to a pixel electrode. The drain electrode includes a first region overlapping the first portion of the storage line and a second region overlapping the second portion of the storage line. The second portion of the storage line and the second region of the drain electrode correspond to the opening.
    Type: Grant
    Filed: April 18, 2011
    Date of Patent: January 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventor: Hyeong-Cheol Ahn
  • Patent number: 8629963
    Abstract: In an embodiment of the invention, a liquid crystal display is provided. The liquid crystal display includes a first substrate, a first electrode formed on the first substrate, wherein the first electrode includes a plurality of subpixels, and each the subpixel includes a plurality of subunits, and each the subunit includes a plurality of first slits and a plurality of second slits, wherein the first slits are connected to the second slits and the first slits of the subunits which are adjacent to each other are connected to each other, a second substrate opposite to the first substrate, a second electrode formed on the second substrate, and a liquid crystal layer disposed between the first electrode and the second electrode.
    Type: Grant
    Filed: February 29, 2012
    Date of Patent: January 14, 2014
    Assignees: Innocom Technology (Shenzhen) Co., Ltd., Chimei Innolux Corporation
    Inventors: Chien-Hong Chen, Jia-Lun Chen
  • Publication number: 20140009708
    Abstract: The present invention discloses a 3D liquid crystal display device and a pixel structure thereof. The pixel structure includes three gate lines, a data line and three pixel electrodes. The gate lines are arranged along a first direction and cross the data line to define three sub-pixel regions. Each of the pixel electrodes includes a primary electrode portion and an extension electrode portion. The primary electrode portion of each of the pixel electrodes is disposed in the corresponding sub-pixel region, and the extension electrode portions of all the pixel electrodes are disposed together in one of the sub-pixel regions. The pixel structure can improve a color washout problem of the 3D liquid crystal display device under top or bottom view angles.
    Type: Application
    Filed: August 8, 2012
    Publication date: January 9, 2014
    Applicant: Shenzhen China Star Optoelectronics Technology Co. Ltd.
    Inventor: Chia-Yu Lee
  • Patent number: 8619225
    Abstract: A liquid crystal device, which has a plurality of pixels and switching elements provided in correspondence with the pixels, includes an element substrate, an interlayer insulating film, a first electrode layer, and a second electrode layer. The switching elements are formed in the element substrate. The interlayer insulating film is formed on the switching elements. The first electrode layer is formed on the interlayer insulating film. The second electrode layer is formed in the element substrate and overlaps the first electrode in plan view through an interelectrode insulating film. Each of the pixels includes a first region and a second region. The first electrode layer overlaps the second electrode layer in plan view in the first region. Of the first electrode layer and the second electrode layer, only the first electrode layer is formed in the second region. The thickness of the second electrode layer is smaller than the thickness of the first electrode layer.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: December 31, 2013
    Assignee: Japan Display West Inc.
    Inventor: Shin Fujita
  • Publication number: 20130342777
    Abstract: A liquid crystal display includes a first substrate, a first gate line disposed on the first substrate, a second gate line disposed on the first substrate, a data line disposed on the first substrate, a reference voltage line disposed on the first substrate and extending substantially to be parallel to the data line, a first subpixel electrode disposed in a pixel area on the first substrate, a second subpixel electrode disposed in the pixel area on the first substrate, a first switching element connected to the first gate line, the data line and the first subpixel electrode, a second switching element connected to the first gate line, the data line and the second subpixel electrode, and a third switching element connected to the first subpixel electrode and the reference voltage line.
    Type: Application
    Filed: March 15, 2013
    Publication date: December 26, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Youn Hak JEONG, Seung-Hwan KIM, Kwi Hyun KIM, Jang Soo KIM, Sang Yong NO, Jae-Jin SONG, Byoung Sun NA, Seung Soo BAEK
  • Publication number: 20130335688
    Abstract: A liquid crystal display includes a first substrate, a pixel electrode formed on the first substrate, a second substrate facing the first substrate, and a common electrode formed on the second substrate. The pixel electrode includes a first subpixel electrode disposed in a first subpixel region, and a second subpixel electrode disposed in a second subpixel region. A first voltage applied to the first subpixel electrode and a second voltage applied to the second subpixel electrode are different from each other, and a ratio of the first voltage to the second voltage is about 0.76 to about 0.80.
    Type: Application
    Filed: March 14, 2013
    Publication date: December 19, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jae-Hoon JUNG, Hoon KIM, Cheol SHIN, Ka Eun KIM, Su Jeong KIM, Ki Chul SHIN, Ho Kil OH, Min Ju HAN, Dan Bi YANG, Ji Phyo HONG
  • Patent number: 8610865
    Abstract: The TFT substrate includes a pixel electrode and a common electrode laminated one on top of another via an insulating layer, one of the pixel electrode and the common electrode provided farther from the liquid crystal layer being formed into a plane shape, and another of the pixel electrode and the common electrode provided closer to the liquid crystal layer having slits formed therein, each of the plurality of slits having a closed end portion. The liquid crystal display panel further includes a reflection portion for reflecting light, the reflection portion being formed at a surface of the liquid crystal display panel on the illumination device side in a portion which overlaps, in plan view, the end portion of the each of the slits in the long-side direction and a vicinity thereof, and a part of an inner region of the each of the slits.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: December 17, 2013
    Assignee: Japan Display Inc.
    Inventors: Masaya Adachi, Osamu Itou, Shigeki Nishizawa
  • Patent number: 8610864
    Abstract: A liquid crystal display according to an exemplary embodiment of the present invention includes: a pixel electrode including a first subpixel electrode and a second subpixel electrode with a gap therebetween; a common electrode facing the pixel electrode; and a liquid crystal layer formed between the pixel electrode and the common electrode, and including a plurality of liquid crystal molecules, wherein the first and second subpixel electrodes include a plurality of minute branches, the first and second subpixel electrodes include a plurality of subregions having different length directions of the minute branches, and the width of the minute branches is wider than an interval between the neighboring minute branches.
    Type: Grant
    Filed: September 16, 2009
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Eun-Guk Lee, Byung-Duk Yang, Hyang-Shik Kong, Se-Hwan Yu, Sang-ki Kwak, Kyoung-Tai Han, Dong-Yoon Kim
  • Patent number: 8610867
    Abstract: Provided are a liquid crystal composition and a liquid crystal display (LCD) including the liquid crystal composition. The LCD includes a first display panel a second display panel facing the first display panel, and a liquid crystal composition disposed between the first display panel and the second display panel. If a dielectric constant in a direction parallel to a long axis of liquid crystals is defined as a horizontal dielectric constant ??, a dielectric constant in a direction perpendicular to the long axis of the liquid crystals is defined as a vertical dielectric constant ??, and the difference between the vertical dielectric constant ?? and the horizontal dielectric constant ?? is defined as dielectric anisotropy ??, then a ratio ??/?? of the dielectric anisotropy ?? to the vertical dielectric constant ?? of the liquid crystal composition is 0.5 or less.
    Type: Grant
    Filed: January 20, 2009
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Gyu Kim, Kyoung-Ju Shin, Jong-Ho Son, Yong-Kuk Yun, Jun-Pyo Lee, Seunng-Soo Baek
  • Patent number: 8610863
    Abstract: An LCD panel is provided for improving a contrast ratio by suppressing light leakage around gate lines of an assembly that is structured to support a liquid crystal alignment mode that enhanced side view visibility of the LCD image. The LCD panel includes a first base substrate, a plurality of gate lines and a plurality of data lines disposed on the first base substrate and crossing each other, a pixel electrode comprising a first oblique line and a second oblique line disposed on the first base substrate and inclined in a different direction from each other with respect to the gate lines, a second base substrate, a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode, wherein a portion of the common electrode overlaps the gate line segment, and a liquid crystal layer disposed between the first and second base substrates.
    Type: Grant
    Filed: January 24, 2008
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji-Hyun Kwon, Hyeok-Jin Lee, Byoung-Sun Na, Lujian Gang, Dong-Hyeon Ki, Hwa-Sung Woo
  • Patent number: 8610866
    Abstract: The present invention relates to a liquid crystal display including a pixel electrode including a first subpixel electrode and a second subpixel electrode spaced apart with a gap therebetween, a common electrode facing the pixel electrode, and a liquid crystal layer formed between the pixel electrode and the common electrode and including a plurality of liquid crystal molecules. The first and second subpixel electrodes include a plurality of branches, and each of the first and second subpixel electrodes includes a plurality of subregions. The branches extend in different directions in different subregions.
    Type: Grant
    Filed: June 3, 2013
    Date of Patent: December 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mee-Hye Jung, Ji-Won Sohn, Jae-Jin Lyu, Chong-Chul Chai
  • Patent number: 8605242
    Abstract: A liquid crystal display includes a signal line disposed on a substrate, a pixel electrode connected to the signal line and including a first subpixel electrode and a second subpixel electrode, a common electrode disposed opposite the pixel electrode, and a liquid crystal layer disposed between the pixel electrode and the common electrode. The liquid crystal layer is divided into domains including a first direction domain and a second direction domain in a region corresponding to the first subpixel electrode, and a third direction domain and a fourth direction domain in a region corresponding to the second subpixel electrode, and an area of the third direction domain is greater than about twice and less than about then times an area of the fourth direction domain.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: December 10, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seon-Ah Cho, Jang-Kun Song, Hyun-Wuk Kim
  • Patent number: 8599344
    Abstract: A display apparatus includes a display panel disposed between a first polarizer and a second polarizer and having at least one first area and at least one second area. A first light-transmission axis direction of the first polarizer is substantially perpendicular to a second light-transmission axis direction of the second polarizer. The first light-transmission axis direction intersects a horizontal axis direction by about 45 degrees. When the display panel is in a narrow viewing angle display mode, the first and second areas have different brightness in a side viewing angle direction but have the same brightness in and around a normal viewing angle direction. When the display panel is in a wide viewing angle display mode, the first and second areas have substantially the same brightness in various viewing angle directions.
    Type: Grant
    Filed: August 28, 2011
    Date of Patent: December 3, 2013
    Assignee: Au Optronics Corporation
    Inventors: Chao-Wei Yeh, Chien-Huang Liao, Wen-Hao Hsu
  • Patent number: 8599351
    Abstract: A liquid crystal display includes a substrate; a plurality of pixel electrodes formed on the substrate, each of the pixel electrodes including a first and a second sub-pixel electrode; and a plurality of first data lines formed on the substrate, wherein the first data line overlaps the first and second sub-pixel electrodes of each of two adjacent pixel electrodes among the pixel electrodes.
    Type: Grant
    Filed: November 2, 2006
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong Gyu Kim
  • Patent number: 8593597
    Abstract: The active matrix substrate includes: a plurality of switching elements provided on an insulating substrate; a plurality of lines provided on the insulating substrate and connected to the switching elements; an interlayer insulating film covering the switching elements and the lines; a plurality of pixel electrodes formed on the interlayer insulating film; and a plurality of terminals connected to the lines and placed with a predetermined spacing. At least part of each of the terminals is not covered with the interlayer insulating film. A reflection layer configured to reflect light is provided in a region that is at least part of each gap between the adjacent terminals and includes an edge of the interlayer insulating film, as viewed from the normal to the surface of the insulating substrate.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: November 26, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Kazuyori Mitsumoto, Masahiro Yoshida
  • Patent number: 8587754
    Abstract: A liquid crystal display includes a first substrate including pixels, each having a transmissive area and a reflective area, a second substrate, and a liquid crystal layer disposed between the first and second substrates. Each of the pixels includes first and second thin film transistors which output a data signal in response to a first gate signal, a transmissive pixel electrode disposed in the transmissive area and electrically connected to the first thin film transistor to charge a first pixel voltage based on the data signal, a reflective pixel electrode disposed in the reflective area and electrically connected to the second thin film transistor to charge a second pixel voltage based on the data signal, and a voltage controller which controls the first pixel voltage and the second pixel voltage in response to a second gate signal, which is generated after the first gate signal.
    Type: Grant
    Filed: June 14, 2010
    Date of Patent: November 19, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Youn Hak Jeong, Jooseok Yeom, Keunchan Oh, Yoonsung Um, Heehwan Lee, Kyuwan Ryu, Jaejin Lyu, Myungjae Park
  • Publication number: 20130293822
    Abstract: A display panel includes a pair of substrates, a pixel structure, and a display medium layer disposed between the pair of substrates. The pixel structure is disposed on one of the substrates, and includes first and second sub-pixels. The first sub-pixel includes a first pixel electrode, wherein the first pixel electrode has a first spacing in a first main region and has a second spacing in a first minor region, wherein the second spacing is smaller than the first spacing. The second sub-pixel includes a second pixel electrode, wherein the second pixel electrode has a third spacing in a second main region and has a fourth spacing in a second minor region, wherein the fourth spacing is larger than or equal to the third spacing, and wherein the first spacing is larger than the third spacing.
    Type: Application
    Filed: October 18, 2012
    Publication date: November 7, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Jen-Yang Chung, Kun-Cheng Tien, Ming-Huei Wu, Shin-Mei Gong, Chien-Huang Liao, Wen-Hao Hsu
  • Patent number: 8576153
    Abstract: There is disclosed a liquid crystal display device and driving method are provided. The liquid crystal display device includes a liquid crystal display panel where pixels are defined by gate lines and data lines that are arranged in a matrix shape. A gate driver is operable to supply a gate voltage to the liquid crystal display panel. A data driver is operable to supply a data voltage to the liquid crystal display panel. The pixels are each independently operable to be driven by drive voltages, which have different polarities from each other, and include first and second liquid crystal cells which realize the same gray level.
    Type: Grant
    Filed: October 30, 2006
    Date of Patent: November 5, 2013
    Assignee: LG Display Co., Ltd.
    Inventors: Ki Bok Park, Sang Ho Choi
  • Patent number: 8570477
    Abstract: A substrate for a liquid crystal display device, including a pixel electrode formed on the substrate, wherein the pixel electrode includes a micro-cutout pattern defined by a plurality of micro-cutouts extending in four different directions with respect to an extension direction of a rough structural pattern. The substrate also includes a first electrode extending in a first direction, a second electrode extending in a second direction that is approximately perpendicular to the first direction, and a contact hole that electrically connects the pixel electrode and the first electrode. A portion of the rough structural pattern and/or a portion of the micro-cutout pattern overlap the first electrode. Also disclosed is a liquid crystal display device including such a substrate.
    Type: Grant
    Filed: September 13, 2012
    Date of Patent: October 29, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shingo Kataoka, Arihiro Takeda, Takahiro Sasaki, Tsutomu Seino, Yoshio Koike, Hidefumi Yoshida, Yuichi Inoue, Kazutaka Hanaoka, Seiji Tanuma, Takatoshi Mayama, Kimiaki Nakamura, Hideo Chida, Seiji Doi, Tetsuya Fujikawa, Takashi Takagi, Hiroyasu Inoue
  • Patent number: 8570453
    Abstract: With a configuration in which a first pixel electrode (17a) electrically connected to a first transistor (12) and a second pixel electrode (17b) connected to the first pixel electrode (17a) through a capacitance are provided in a single pixel, a storage capacitance wiring (18j) is formed in the same layer with a data signal line (15j), a second transistor (212c) is electrically connected to the storage capacitance wiring (18j) and to the first pixel electrode (17a), and a third transistor (212b) is electrically connected to the storage capacitance wiring (18j) and to the second pixel electrode (17b), a capacitance coupling type active matrix substrate equipped with transistors for discharge suppresses the aperture ratio reduction and load increase on gate bus lines (scan signal lines).
    Type: Grant
    Filed: October 29, 2009
    Date of Patent: October 29, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshihide Tsubata
  • Patent number: 8570265
    Abstract: A liquid crystal display includes a first gate line transmitting a first gate signal, a first data line transmitting a first data voltage, and a first pixel connected to the first gate line and the first data line and including a first subpixel and a second subpixel. The first subpixel includes a first switching element connected to the first gate line, a first liquid crystal capacitor connected to the first switching element, and a first storage capacitor having a first terminal and a second terminal. The second subpixel includes a second switching element connected to the first gate line and the first data line, a second liquid crystal capacitor connected to the second switching element, and a second storage capacitor having a first terminal and a second terminal and having a capacitance different from a capacitance of the first storage capacitor.
    Type: Grant
    Filed: October 1, 2008
    Date of Patent: October 29, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang-Chul Jung, Mee-Hye Jung
  • Patent number: 8564745
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a plurality of a signal line on the first substrate, a pixel electrode including a first pixel electrode and a second pixel electrode connected to the signal lines and separated from each other, and a liquid crystal layer between the first substrate and the second substrate and including a liquid crystal molecule. A voltage charged to the liquid crystal layer in a first region occupied by the first sub-pixel electrode, is lower than a voltage charged to the liquid crystal layer in a second region occupied by the second sub-pixel electrode. The second region and a portion of the first region display a first color, and a remaining portion of the first region displays the second color.
    Type: Grant
    Filed: October 29, 2010
    Date of Patent: October 22, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Dong-Gyu Kim
  • Patent number: 8564518
    Abstract: A liquid crystal display device includes a plurality of pixels each including a liquid crystal element of VA mode and a drive section. The drive section space-divisionally or time-divisionally performs a display drive operation so that the operation includes first and second divisional-drive operation groups. The drive section performs an operation in the first or second divisional-drive operation group, or both thereof. In the former, the output voltage exceeds the input voltage in the intermediate luminance range, whereas in a highlight luminance range, exceeds the input voltage but shows a tendency to be lower compared to in the intermediate luminance range. In the latter, the output voltage is lower than the input voltage in the intermediate luminance range, whereas in a lowermost luminance range, equal to or lower than the input voltage but shows a tendency to be higher compared to in the intermediate luminance range.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: October 22, 2013
    Assignee: Sony Corporation
    Inventors: Yuji Nakahata, Tsuyoshi Kamada
  • Patent number: 8558980
    Abstract: A pixel structure including a scan line, a first data line, a second data line, a first active device, a second active device, a first pixel electrode, a second pixel electrode, and a common electrode is provided. The first data line and the second data line are respectively intersected with the scan line. The first pixel electrode is electrically connected to the first data line through the first active device. The second pixel electrode is electrically connected to the second data line through the second active device. The common electrode is located under the first pixel electrode and the second pixel electrode. Both a first voltage of the first pixel electrode and a second voltage of the second pixel electrode are different from a third voltage of the common electrode.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: October 15, 2013
    Assignee: Au Optronics Corporation
    Inventors: Young-Ran Chuang, Ching-Huan Lin, Chu-Yu Liu
  • Publication number: 20130265514
    Abstract: Disclosed herein is a pixel structure switchable between a wide viewing angle mode and a narrow viewing angle mode. The pixel structure includes a first substrate, a first and a second gate lines, a data line, a pixel unit, a second substrate and a display medium. The pixel unit includes a first active element, a second active element, a first sub-pixel electrode, a second sub-pixel electrode, and a common electrode. The first and second sub-pixel electrodes are respectively electrically connected to the first and second active elements. The common electrode is opposite to the first and second sub-pixel electrodes. The second substrate has a counter electrode disposed on a surface facing the first substrate. The counter electrode is corresponding to the first sub-pixel electrode.
    Type: Application
    Filed: November 1, 2012
    Publication date: October 10, 2013
    Applicants: Au Optronics Corporation, Au Optronics (Suzhou) Corp., Ltd.
    Inventors: Chun Li, Kun-Piao Lin, Huan-Liang Shen
  • Patent number: 8553192
    Abstract: A liquid crystal display (LCD) is provided that includes: a first substrate; a gate line formed on the first substrate; a data line intersecting the gate line to define a pixel; a thin-film transistor (TFT) connected to the gate line and the data line and formed in the pixel; a sustain electrode line including a first sustain electrode that passes through the pixel, so as to divide the pixel into a first region and a transparent second region, and a second sustain electrodes that extend perpendicularly from the first sustain electrode; and a first pixel electrode connected to the TFT, disposed in the first region.
    Type: Grant
    Filed: April 19, 2011
    Date of Patent: October 8, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Woo Whangbo, Yong-Su Lee, Doo-Hee Jung, Cheol-Gon Lee
  • Patent number: 8553165
    Abstract: A pixel structure includes a plurality of data lines and a common line. The common line overlaps each data line, and is coupled with each data line to respectively form a first coupling capacitor, a second coupling capacitor, a third coupling capacitor, a fourth coupling capacitor, a fifth coupling capacitor, and a sixth coupling capacitor. The third coupling capacitor is smaller than the second coupling capacitor, and the fifth coupling capacitor is smaller than the fourth coupling capacitor.
    Type: Grant
    Filed: February 14, 2011
    Date of Patent: October 8, 2013
    Assignee: AU Optronics Corp.
    Inventors: Peng-Bo Xi, Yi-Jen Chen, Shin-Hung Yeh, Ya-Ling Hsu, Wei-Kai Huang
  • Patent number: 8546808
    Abstract: The liquid crystal display device of this invention includes picture element regions each defined by a first electrode provided on a first substrate and a second electrode provided on a second substrate so as to oppose the first electrode via a liquid crystal layer sandwiched therebetween. In each of the picture element regions, the first electrode includes a solid portion and a nonsolid portion. The liquid crystal display device further includes a pair of polarizing plates disposed with polarization axes thereof crossing each other substantially perpendicularly. The polarization axis of one of the pair of polarizing plates is substantially parallel to a direction in which the solid portion extends. When a voltage is applied between the first electrode and the second electrode, in each of the picture element regions, liquid crystal molecules of the liquid crystal layer are in a radially-inclined orientation state.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: October 1, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Masumi Kubo, Akihiro Yamamoto, Takashi Ochi, Tetsuhiro Yamaguchi, Naoshi Yamada, Katsuhiko Morishita, Kiyoshi Ogishima, Kazuhiro Maekawa
  • Patent number: 8547515
    Abstract: A display substrate includes a transparent substrate, a gate line formed on the transparent substrate, a data line crossing the gate line, a thin film transistor electrically connected to the gate line and the data line, and a pixel electrode. The pixel electrode includes a body electrode section electrically connected to the thin film transistor and a plurality of protruding electrodes protruding from the body electrode section. Each of the protruding electrodes includes a trapezoidal electrode having two sides that are inclined with respect to a protrusion direction that is a lengthwise direction of the body electrode section.
    Type: Grant
    Filed: February 10, 2009
    Date of Patent: October 1, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Hoon Kim, Il-Yong Yoon, Yong-Woo Lee
  • Patent number: 8547510
    Abstract: A liquid crystal display panel for displaying an image by controlling an orientation direction of a liquid crystal mixture with respect to each pixel, includes a first common electrode which is formed on a first substrate; a second common electrode which is formed on a second substrate and includes a predetermined opening; and a pixel electrode which is formed on the second substrate, wherein the first substrate faces the second substrate so that the liquid crystal mixture with positive dielectric anisotropy is sandwiched between the first common electrode and the second common electrode, and wherein the orientation direction of the liquid crystal mixture changes mainly in a face parallel to the substrate according to an electric field generated from electric potential of the first common electrode, the second common electrode, and the pixel electrode.
    Type: Grant
    Filed: August 18, 2008
    Date of Patent: October 1, 2013
    Assignee: NLT Technologies, Ltd.
    Inventors: Hiroaki Matsuyama, Takahiko Watanabe
  • Patent number: 8542228
    Abstract: In a liquid crystal display, a first data signal line and a second data signal line are provided for each pixel column. In at least one embodiment, in a case where every two pixels in the pixel column are paired, one of two pixels in each pair is connected with the first data signal line and the other of the two pixels is connected with the second data signal line, two scanning signal lines respectively connected with the two pixels are simultaneously selected during one horizontal scanning period so that signal potentials are written into the two pixels from the first data signal line and the second data signal line, respectively, during each horizontal scanning period, supply of the signal potentials to the first data signal line and the second data signal line is performed after supply of preliminary potentials to the first data signal line and the second data signal line.
    Type: Grant
    Filed: November 11, 2008
    Date of Patent: September 24, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Toshinori Sugihara, Atsushi Ban, Toshihide Tsubata
  • Patent number: 8537315
    Abstract: A liquid crystal display (LCD) structure is provided. A first alignment layer and a first electrode layer are disposed on a liquid crystal layer. A second electrode layer and a second alignment layer disposed under the liquid crystal layer. The first alignment layer and the second alignment layer respectively have a plurality of alignment areas with different aligning directions. At least one of the first electrode layer and the second electrode layer includes a substrate material and a plurality of openings, and at least includes a plurality of electrode areas. The boundaries of the electrode areas correspond to the boundaries of the alignment areas. The directions of the openings in the electrode areas are between the aligning directions of the corresponding alignment areas of the first alignment layer and the second alignment layer.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: September 17, 2013
    Assignee: Chimei Innolux Corporation
    Inventors: Jian-Cheng Chen, Chih-Yung Hsieh, Bo-Chin Tsuei
  • Patent number: 8537314
    Abstract: A display device includes a first panel having a pixel electrode, a second panel having a common electrode facing the first panel, a liquid crystal layer interposed between the first panel and the second panel and having vertically-aligned liquid crystal molecules, a first alignment layer disposed on the pixel electrode, and a second alignment layer disposed on the common electrode. At least one of the first alignment layer and the second alignment layer divides the pixel electrode into a plurality of domains and is formed to have a plurality of pretilt directions which pretilt the vertically-aligned liquid crystal molecules in a domain of the plurality of domains. A sum of horizontal component directions of a pretilt direction of the plurality of pretilt directions is substantially equivalent to a sum of horizontal component directions of a fringe field at a peripheral boundary of the pixel electrode in the domain.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: September 17, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-woo Lee, Hwa-sung Woo, Baek-kyun Jeon, Kyoung-tae Kim, In-suk Lee
  • Patent number: 8531620
    Abstract: In each pixel region, (i) a first pixel electrode (17a) connected to a first transistor (12a), (ii) a second pixel electrode (17b) connected to a second transistor (17b), (iii) a coupling electrode (67y), and (iv) first and second capacitor electrodes (67x and 67z) provided in a layer in which a data signal line (15) is provided, being provided, a capacitor being defined by the coupling electrode (67y) and the second pixel electrode (17b), the coupling electrode (67y) being connected to the first pixel electrode (17a) via a third transistor (112), the first capacitor electrode (67x) and a retention capacitor line (18) overlapping each other via a gate insulating film, the first capacitor electrode (67x) being connected to the first pixel electrode (17a), the second capacitor electrode (67z) and the retention capacitor line (18) overlapping each other via the gate insulating film, the second capacitor electrode (67z) being connected to the second pixel electrode (17b).
    Type: Grant
    Filed: September 3, 2009
    Date of Patent: September 10, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshihide Tsubata
  • Patent number: 8525965
    Abstract: A unit pixel of a liquid crystal display panel includes a plurality of domains formed using a photoalignment process technology. The domains have different domain alignment vectors, and major axes of liquid crystal molecules on alignment layers are aligned in parallel to transmission axes of the liquid crystal display panel. In addition, the unit pixel has a pixel electrode including slits. The slits have a slit angle at which the slits cross alignments of the domains at a predetermined angle, and the slit angle is less than 45°. As a result, transmittance of the unit pixel may increase, ensuring high image quality.
    Type: Grant
    Filed: August 19, 2011
    Date of Patent: September 3, 2013
    Assignee: Samsung Display Co., Ltd
    Inventors: Young-Gu Kim, Jin-Soo Jung, Hak-Sun Chang, Hee-June Kwak
  • Patent number: 8525964
    Abstract: An array substrate includes a switching device, a storage capacitor and a voltage-dividing capacitor. The switching device is formed in a pixel region defined by two gate lines adjacent to each other and two data lines adjacent to each other. The storage capacitor is electrically connected to the switching device. The voltage-dividing capacitor is disposed between the storage capacitor and one of the gate lines. The voltage-dividing capacitor is electrically connected to the storage capacitor. Therefore, an overlapping area with the data lines is reduced to reduce the RC delay and enhance aperture ratio. Furthermore, a possibility of occurrence of an electrical short is reduced.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: September 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: In-Woo Kim, Sun-Ok Song
  • Patent number: 8520160
    Abstract: A LCD and a method of driving the LCD are provided. The LCD includes first and second gate lines extending in a first direction, a data line insulated from the first gate line and crossing the first gate line, a pixel electrode including first and second sub-pixel electrodes, the pixel electrode being disposed in a pixel having a long side in the first direction, a first thin film transistor (TFT) connected to the first gate line, the data line, and the first sub-pixel electrode, a second TFT connected to the first gate line, the data line, and the second sub-pixel electrode, and a third TFT connected to the second gate line, the second sub-pixel electrode, and a charge-sharing capacitor, the charge-sharing capacitor sharing a data voltage applied to the second sub-pixel electrode.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: August 27, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hye-ran You, Seung-beom Park, Yoon-sung Um, Jin-won Park, Hee-wook Do, Hoon Kim
  • Patent number: 8520178
    Abstract: When a conductive layer is formed, a first liquid composition containing a conductive material is applied on an outer side of a pattern that is desired to be formed (corresponding to a contour or an edge portion of a pattern), and a first conductive layer (insulating layer) having a frame-shape is formed. A second liquid composition containing a conductive material is applied so as to fill a space inside the first conductive layer having a frame-shape, whereby a second conductive layer is formed. The first conductive layer and the second conductive layer are formed so as to be in contact with each other, and the first conductive layer is formed so as to surround the second conductive layer. Therefore, the first conductive layer and the second conductive layer can be used as one continuous conductive layer.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: August 27, 2013
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hironobu Shoji, Ikuko Kawamata
  • Patent number: 8514339
    Abstract: Disclosed is an active matrix including a scanning signal line (16x), a data signal line (15x), and a first insulating film; and including, in a pixel region (101), a transistor (12a), a first pixel electrode (17a) connected to the data signal line via the transistor, a second pixel electrode (17b), a first capacitor electrode (87) electrically connected to the first pixel electrode (17a), and a second capacitor electrode (47) electrically connected to the second pixel electrode (17b), wherein the first capacitor electrode is provided in a same layer as the scanning signal line, the second capacitor electrode is provided in a same layer as the data signal line, and the first and second capacitor electrodes (87, 47) overlap each other by having the first insulating film sandwiched therebetween to form a capacitor between the first and second capacitor electrodes (87, 47).
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: August 20, 2013
    Assignee: Sharp Kabushiki Kaisha
    Inventor: Toshihide Tsubata
  • Patent number: 8514270
    Abstract: A liquid crystal display includes a first substrate and a second substrate facing each other, a pixel electrode disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode spaced apart from the first sub-pixel electrode by a gap, a common electrode disposed on the second substrate, a shielding member disposed on the first substrate or the second substrate and overlapping the gap between the first sub-pixel electrode and the second sub-pixel electrode, an alignment layer disposed on at least one of the pixel electrode and the common electrode, and a liquid crystal layer disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: April 2, 2012
    Date of Patent: August 20, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mee-Hye Jung, Chong-Chul Chai, Yong-Woo Lee, Young-Gu Kim
  • Publication number: 20130208225
    Abstract: A liquid crystal display includes a first substrate; and a pixel electrode including a first sub-pixel electrode and a second sub-pixel electrode formed at a distance from each other on the first substrate, the first sub-pixel electrode includes stem portions and a plurality of branch portions extended from the stem portions, and the second sub-pixel electrode surrounds the first sub-pixel electrode.
    Type: Application
    Filed: September 14, 2012
    Publication date: August 15, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Oh Jeong KWON, Jae Hong PARK, Sung-Jae YUN, Shuai JIANG, Kyung Hye PARK, Joo Young YOON, Hyeok Jin LEE
  • Patent number: 8508683
    Abstract: A flat panel display having an improved picture quality is disclosed. In on embodiment, a first pixel electrode and a second pixel electrode are formed in each subpixel area. The electrodes enclose an open space (gap) such that their outer boundary has a substantially rectangular shape. The flat panel display may also include a capacitance electrode coupled to the second pixel electrode to form a coupling capacitor. In use, the coupling capacitor operates such that a magnitude of a voltage applied to the first pixel electrode is lower than an applied data voltage, and a magnitude of a voltage applied to the second pixel electrode is higher than an applied voltage. The different voltages operate such that a tilt direction of LC molecules disposed above the first pixel electrode differs from a tilt direction of LC molecules disposed above the second pixel electrode.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: August 13, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jang-Kun Song
  • Patent number: 8508704
    Abstract: A pixel array including a plurality of scan lines, a plurality of data lines, and a plurality of sub-pixels is provided. Each sub-pixel is electrically connected to one of the scan lines and one of the data lines correspondingly. Each sub-pixel arranged in the nth row includes a first switch, a second switch, a first pixel electrode, a second pixel electrode and a third switch. The first switch and the second switch are electrically connected to the nth scan line and the mth data line. The first pixel electrode is electrically connected to the first switch. The second pixel electrode is electrically connected to the second switch and has an opening for accommodating the first pixel electrode. In each sub-pixel, the first pixel electrode is surrounded by the second pixel electrode. In addition, the third switch is electrically connected to the (n+1)th scan line and the second pixel electrode.
    Type: Grant
    Filed: March 23, 2010
    Date of Patent: August 13, 2013
    Assignee: Au Optronics Corporation
    Inventor: Te-Wei Chan
  • Patent number: RE44573
    Abstract: A liquid crystal display (LCD) panel includes pixels arranged in matrix, and first and second scan lines and a storage capacitance line. Each pixel has a first sub-pixel, which is disposed between the first and second scan lines, and first to third thin-film transistors (TFTs) and a pixel electrode divided into first and second regions. The first TFT is electrically connected to the first scan line and the first region. The second TFT is electrically connected to the first scan line and the second region. The third TFT is electrically connected to the second scan line and the second region. The storage capacitance line is electrically connected to the third TFT. A distance between the storage capacitance line and the first scan line is longer than that between the storage capacitance line and the second scan line.
    Type: Grant
    Filed: May 17, 2012
    Date of Patent: November 5, 2013
    Assignee: Chi Mei Optoelectrics Corps
    Inventors: Chih-Yung Hsieh, Chien-Hong Chen