With Particular Switching Device Patents (Class 349/41)
  • Patent number: 10990133
    Abstract: A flat portion includes a corner side that is provided between the first and second sides and of which a tangent intersects the first and second sides. An inclined portion includes a first portion that is bent along the first side, a second portion that is bent along the second side, and a third portion that is bent from the corner side. A flexible display panel includes a notch that is provided between the first and second portions and of which a gap spreads in a direction away from the flat portion in a state where the flexible display panel is laid flat. Facing sides of the notch facing each other are adjacent to each other in a state where the flexible display panel is bent.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: April 27, 2021
    Assignee: Japan Display Inc.
    Inventor: Hirondo Nakatogawa
  • Patent number: 10971526
    Abstract: A pixel structure includes a scan line, a data line, a reference voltage line, a first transistor, a second transistor, a third transistor, a first pixel electrode and a second pixel electrode. The reference voltage line is separated from the data line and intersected with the scan line. A first electrode of the second transistor, a second electrode of the second transistor and a first electrode of the third transistor have straight line portions overlapped with a second semiconductor pattern of the second transistor and a third semiconductor pattern of the third transistor. Both ends of each of the straight line portions are located outside a normal projection region of a first semiconductor pattern of the first transistor, a normal projection region of the second semiconductor pattern of the second transistor and a normal projection region of the third semiconductor pattern of the third transistor.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: April 6, 2021
    Assignee: Au Optronics Corporation
    Inventors: Min-Tse Lee, Sheng-Yen Cheng, Yueh-Hung Chung, Ya-Ling Hsu, Chen-Hsien Liao
  • Patent number: 10777760
    Abstract: A display panel, a method for fabricating the same and a display device are disclosed. The display panel includes a top emission AMOLED display sub-panel, a normally-white mode reflective display sub-panel provided on the top emission AMOLED display sub-panel, and a switching element configured to turn on the top emission AMOLED display sub-panel and turn off the normally-white mode reflective display sub-panel according to a received first instruction, and turn on the normally-white mode reflective display sub-panel and turn off the top emission AMOLED display sub-panel according to a received second instruction.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: September 15, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Huang, Dawei Wang
  • Patent number: 10770005
    Abstract: A display device according to the present disclosure includes a substrate including a display area which has an irregularly shaped side and a non-display area which includes a notch area defined by a shape of the irregularly shaped side of the display area and is disposed to enclose the display area. A load amount of the scan output signal of the display area in which the irregularly shaped side is formed is detected by a plurality of sensing lines and an offset of a data signal is corrected based on the load amount to improve an image quality of the display device including an irregularly shaped side.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: September 8, 2020
    Assignee: LG Display Co., Ltd.
    Inventor: SangHyun Lim
  • Patent number: 10748939
    Abstract: A semiconductor device (100A) is provided with: a gate electrode (3); an oxide semiconductor layer (5); a thin-film transistor (101) including a gate insulating layer (4), a source electrode (7S), and a drain electrode (7D); an inter-layer insulating layer (11) arranged so as to cover the thin-film transistor (101) and come into contact with a channel area (5c) of the thin-film transistor (101); and a transparent electroconductive layer (19) arranged on the inter-layer insulating layer (11), the source electrode (7S) and the drain electrode (7D) each having a copper layer (7a), and the device being further provided with a copper oxide film (8) arranged between the source and drain electrodes and the inter-layer insulating layer (11). The inter-layer insulating layer (11) covers the drain electrode (7D) with the copper oxide film (8) interposed therebetween.
    Type: Grant
    Filed: December 6, 2018
    Date of Patent: August 18, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hideki Kitagawa, Tohru Daitoh, Hajime Imai, Hisao Ochi, Tetsuo Fujita, Tetsuo Kikuchi, Shingo Kawashima, Masahiko Suzuki
  • Patent number: 10743410
    Abstract: According to one embodiment, a display device includes a first substrate including a first base member and a first terminal, a second substrate including a second base member including a first surface opposing the first terminal and a second surface on an opposite side to the first surface, a second terminal located on a side of the second surface, and a first hole, an organic insulating layer located between the first terminal and the second base member and including a second hole connecting to the first hole and a connecting material provided on the first hole to electrically connect the first terminal and the second terminal to each other, at least one of the first terminal and the second terminal including an oxide electrode in contact with the connecting material.
    Type: Grant
    Filed: January 25, 2018
    Date of Patent: August 11, 2020
    Assignee: Japan Display Inc.
    Inventors: Shuichi Osawa, Shoji Hinata, Yoshikatsu Imazeki, Yoichi Kamijo, Yoshihiro Watanabe
  • Patent number: 10726807
    Abstract: A display apparatus including a display panel and a plurality of common voltage generators is provided. The display panel has a plurality of pixel regions. The plurality of common voltage generators are coupled to the plurality of pixel regions respectively and generate a plurality of common voltages, wherein each of the plurality of common voltage generators respectively maintains each of the plurality of common voltages at a first voltage, a second voltage, and a third voltage in a plurality of first timing periods in a first polarity period and respectively maintains each of the plurality of common voltages at a fifth voltage, a fourth voltage, and the third voltage in a plurality of second timing periods in a second polarity period in a narrow view mode, wherein the first voltage>the second voltage>the third voltage>the fourth voltage>the fifth voltage.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: July 28, 2020
    Assignee: Au Optronics Corporation
    Inventors: Wei-Chien Liao, Meng-Chieh Tsai
  • Patent number: 10718707
    Abstract: A liquid crystal photoelectric apparatus includes a first and a second quartz glass substrates, an upper alignment layer disposed between the first and the second quartz glass substrates, a lower alignment layer disposed between the upper alignment layer and the second quartz glass substrate, a liquid crystal material disposed between the upper and the lower alignment layers, a first transparent conductive layer disposed between the upper alignment layer and the first quartz glass substrate and including at least one first main portion and first finger portions extending from the corresponding first main portion and a second transparent conductive layer second transparent conductive layer disposed between the lower alignment layer and the second quartz glass substrate and including a second main portion and second finger portions extending from the second main portion in an extension direction perpendicular to that of the first finger portions. An optical imaging processing system is provided.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: July 21, 2020
    Assignees: National Tsing Hua University, Advanced Comm. Engineering Solution Co., Ltd.
    Inventors: Ci-Ling Pan, Anup Kumar Sahoo, Chan-Shan Yang, Chun-Ling Yen, Yuan-Chun Lu
  • Patent number: 10699947
    Abstract: A method of manufacturing a display apparatus includes preparing a substrate including a display area and a pad area outside of the display area, forming a sacrificial layer in the pad area, forming an encapsulation layer over the display area and the pad area, forming cracks in at least a portion of the encapsulation layer by increasing a volume of the sacrificial layer or by gasifying or evaporating at least a portion of the sacrificial layer, and removing at least a portion of the encapsulation layer in the pad area. A display apparatus is manufactured according to the manufacturing method.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changhan Lee, Yongjun Park, Changwoo Shim, Sanghun Lee
  • Patent number: 10698250
    Abstract: One or more embodiments of the present invention are directed to a liquid crystal display including: a first substrate and a second substrate facing each other; a first color pixel area, a second color pixel area, a third color pixel area, and a white pixel area on any one of the first substrate and the second substrate; and a liquid crystal layer between the first substrate and the second substrate. A first color filter is disposed in each of the first color pixel area and the white pixel area, and each of the first, second, third, and white pixel areas includes a plurality of domains, each two adjacent domains having a boundary between them, and the first color filter is disposed at at least one of the boundaries between the domains in the white pixel area.
    Type: Grant
    Filed: August 7, 2018
    Date of Patent: June 30, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok Kyu Yoon, Eun Ju Kim, Hyung June Kim, Byoung Sun Na, Sung Jae Park, Yun Seok Lee, Ik Soo Lee, Jun Pyo Lee, Wan-Soon Im, Jong Hak Hwang
  • Patent number: 10658236
    Abstract: A method of manufacturing a display apparatus includes preparing a substrate including a display area and a pad area outside of the display area, forming a sacrificial layer in the pad area, forming an encapsulation layer over the display area and the pad area, forming cracks in at least a portion of the encapsulation layer by increasing a volume of the sacrificial layer or by gasifying or evaporating at least a portion of the sacrificial layer, and removing at least a portion of the encapsulation layer in the pad area. A display apparatus is manufactured according to the manufacturing method.
    Type: Grant
    Filed: January 17, 2019
    Date of Patent: May 19, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Changhan Lee, Yongjun Park, Changwoo Shim, Sanghun Lee
  • Patent number: 10627684
    Abstract: A liquid crystal mother substrate and a vertical alignment curing method thereof are provided and has one or more first color filter common electrode alignment signal inputting ends electrically connected to one or more sub electrode layers. One or more second color filter common electrode alignment signal inputting ends are electrically connected to another one or more sub electrode layers. The advantage of the liquid crystal mother substrate is that usage rate of the substrate is increased, and the liquid crystal substrate may be vertical alignment cured individually.
    Type: Grant
    Filed: November 6, 2017
    Date of Patent: April 21, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Bangyin Peng
  • Patent number: 10566556
    Abstract: A display panel, a method for fabricating the same and a display device are disclosed. The display panel includes a top emission AMOLED display sub-panel, a normally-white mode reflective display sub-panel provided on the top emission AMOLED display sub-panel, and a switching element configured to turn on the top emission AMOLED display sub-panel and turn off the normally-white mode reflective display sub-panel according to a received first instruction, and turn on the normally-white mode reflective display sub-panel and turn off the top emission AMOLED display sub-panel according to a received second instruction. By fabricating the normally-white mode reflective display sub-panel on the top emission AMOLED display sub-panel, it is possible to switch, on one operation interface, to the normally-white mode reflective sub-panel to achieve a good display effect under strong light, or to the top emission AMOLED display sub-panel to achieve viewing color content.
    Type: Grant
    Filed: March 25, 2016
    Date of Patent: February 18, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Wei Huang, Dawei Wang
  • Patent number: 10551693
    Abstract: A pixel electrode is provided. The pixel electrode includes a main rod portion disposed in a first direction, a first branch portion connected with the main rod portion and extending along a second direction away from one side of the main rod portion, and a second branch portion connected with the main rod portion and extending along a third direction away from another side of the main rod portion. The first branch portion and the second branch portion does not overlap with a display region of the LCD panel, and the second branch portion is disposed at the vicinity of a via hole of the pixel electrode.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: February 4, 2020
    Inventors: Yangzhao Ma, Ling Wu
  • Patent number: 10481437
    Abstract: A liquid crystal display device includes a first substrate, a first alignment film formed over the first substrate, a second substrate, a second alignment film formed aver the second substrate, a liquid crystal layer sandwiched between the first alignment film and the second alignment film, and a projecting portion formed over the second substrate. The first alignment film is a photo alignment film, and a thickness “d2” of the second alignment film over the projecting portion and a film thickness “d1” of a portion of the first alignment film facing the projecting portion satisfy formula (2), d2<d1??(2).
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: November 19, 2019
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Patent number: 10437397
    Abstract: A capacitive touchscreen includes a substrate and a transparent conductive layer arranged on the substrate. The conductive layer includes a sensing area. The sensing area has a first side and a second side opposite to the first side. The capacitive touchscreen further includes multiple transparent and conductive first electrodes, multiple transparent and conductive second electrodes, and transparent and nonconductive patterns. Each first electrode includes a first trunk extending from the first side toward the second side. Each second electrode includes a second trunk and a wiring coupled to the second trunk. Both the second trunk and the wiring extend from the first side toward the second side, and each second trunk cooperates with a corresponding first trunks to be operable to sense a touched position. The transparent and nonconductive patterns are located between the first and second electrodes to electrically isolate the first electrodes from the second electrodes.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: October 8, 2019
    Assignee: SHENZHEN ROYOLE TECHNOLOGIES CO., LTD.
    Inventors: Zihong Liu, Xiaojun Yu, Peng Wei, Xiang Zou, Yu Zhou, Xin Chen
  • Patent number: 10303300
    Abstract: A liquid crystal display device including: a counter substrate having a first transparent substrate, a laminate structure of a black layer and a first metal layer, and a plurality of terminal portions; a liquid crystal layer; an array substrate having a second transparent substrate, an active element, a second wiring layer formed of a second metal layer, and a light shielding layer. The counter substrate has the first wiring layer, a black matrix, and a first transparent resin layer laminated in this order. The black matrix has a line width larger than a line width (M1W) of the first wiring layer, overlapping the first wiring layer so as to include a pattern of the first wiring layer. The active element is covered with a light shielding pattern via a first insulation layer. A change in electrostatic capacitance produced between the first wiring layer and the second wiring layer is detected.
    Type: Grant
    Filed: February 10, 2017
    Date of Patent: May 28, 2019
    Assignee: TOPPAN PRINTING CO., LTD.
    Inventors: Yukihiro Kimura, Kenzo Fukuyoshi
  • Patent number: 10263017
    Abstract: A pixel structure, a display panel and a manufacturing method of the pixel structure are disclosed. The pixel structure includes: gate lines extending in parallel in a first direction; data lines extending in parallel in a second direction; and a plurality of pixel units defined by the gate lines and the data lines. One of the data lines is disposed between two pixel units which are adjacent to each other in the first direction, and two of the gate lines are disposed between two pixel units which are adjacent to each other in the second direction. Each of the pixel units comprises two pixel regions which are arranged side by side in the first direction, each of the pixel regions comprises a pixel electrode, and each of the pixel units comprises a unitary common electrode which covers the two pixel regions.
    Type: Grant
    Filed: October 16, 2015
    Date of Patent: April 16, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., HEFEI XINSHENG OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Weihua Jia, Haipeng Yang, Jaikwang Kim, Yongjun Yoon
  • Patent number: 10256257
    Abstract: A line array structure is provided, including long wirings, short wirings, first dummy wirings and connection lines. The substrate has an elongated region, a protruding region and a drive connection region. The elongated region has first sides and second sides that respectively extend along a long-side and short-side directions. The protruding region protrudes out from the first side and is connected to the elongated region. The drive connection region is connected to the second side of the elongated region. The long wirings are disposed in the elongated region and extend to the drive connection region. The short wirings are disposed in the protruding region and are parallel with the long wirings. The first dummy wirings are disposed in the elongated region and extend to the drive connection region. Each of the short wirings is electrically connected to a corresponding first dummy wiring through one first connection lines.
    Type: Grant
    Filed: August 4, 2017
    Date of Patent: April 9, 2019
    Assignee: E Ink Holdings Inc.
    Inventors: Ian French, Chi-Ming Wu, Kuang-Heng Liang, Shu-Fen Tsai, Jia-Hung Chen
  • Patent number: 10216057
    Abstract: An array substrate and a manufacture method thereof, a display panel and a display device are provided, and the array substrate includes a base substrate, and gate lines, first data lines, second data lines, and pixel units arranged in a matrix which are disposed on the base substrate. Each row of the pixel units is driven by one corresponding gate line; in the pixel units, every two rows of the pixel units forms one pixel unit row group that receives a same gate signal during the operation of the array substrate; each column of the pixel units is driven by one corresponding first data line and one corresponding second data line, and the first data lines and the second data lines that are adjacent are at least partially overlapped with each other in a direction perpendicular to a surface of the base substrate.
    Type: Grant
    Filed: May 17, 2016
    Date of Patent: February 26, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Li Xiao, Hui Zhang
  • Patent number: 10198237
    Abstract: A display device and a method of driving the same are provided. The display device includes a drive circuit and at least two display units, the drive circuit drives one or at least two display units to display a required image.
    Type: Grant
    Filed: March 16, 2016
    Date of Patent: February 5, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Lan Feng
  • Patent number: 10156758
    Abstract: A liquid crystal display is provided according to the present disclosure, which pertains to the technical field of display. At least one liquid crystal sub pixel comprises a first branch sub pixel, a second branch sub pixel, and a third branch sub pixel, respectively having a first thin film transistor and a first branch sub pixel electrode, a second thin film transistor and a second branch sub pixel electrode, and a third thin film transistor and a third branch sub pixel electrode.
    Type: Grant
    Filed: January 20, 2015
    Date of Patent: December 18, 2018
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Cheng Hung Chen, Zuomin Liao
  • Patent number: 10120242
    Abstract: A liquid crystal display device includes a plurality of arranged pixels. Each of the pixels includes: a first substrate and a second substrate; a first electrode provided on a counter face of the first substrate, the counter face facing the second substrate; a second electrode provided on a counter face of the second substrate, the counter face facing the first substrate; and a liquid crystal layer that contains liquid crystal molecules, and is sandwiched between the first substrate and the second substrate. The liquid crystal molecules are given a pre-tilt. The first electrode includes a base layer 150 that contains a plurality of recesses and protrusions, and transparent conductive material layers 135 and 145. The first transparent conductive material layer 135 connected to a first power supply portion is formed on protrusion top faces 151 of the base layer 150.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: November 6, 2018
    Assignee: SONY CORPORATION
    Inventors: Shunichi Suwa, Masashi Miyakawa, Chikashi Kobayashi, Yoji Nagase, Kunihiko Nagamine
  • Patent number: 9891490
    Abstract: A liquid crystal display device includes a first substrate comprising a pixel area, a second substrate having a common electrode, and a liquid crystal layer arranged between the first and second substrates, where the first substrate includes a first pixel electrode which is arranged on the pixel area and in which a diamond shaped open unit is defined, and a plate shaped second pixel electrode arranged on the first pixel electrode, the first pixel electrode having first and second sides parallel to one side of the pixel area, third and fourth sides extending from one side of the first and second sides, inclined against the first and second sides, and parallel to each other, and fifth and sixth sides that connect the first and second sides with the third and fourth sides, and are parallel to each other, and the second pixel electrode includes a cross-shaped stem unit.
    Type: Grant
    Filed: July 7, 2015
    Date of Patent: February 13, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chang-Il Tae, Eun-Kil Park, Seung-Ho Yang
  • Patent number: 9746729
    Abstract: According to one embodiment, there is a third column of third color (Blue) pixels and fourth (White) color pixels arranged alternately. The first set of a first (Red), a second (Green) and a third (Blue) color pixels along the first direction, and the second set of a first (Red), a second (Green) and a fourth (White) color pixels along the first direction are each defined as a composite color unit pixel. In the composite color unit pixels located at the first or second one along the first direction from composite color unit pixels to which color pixels of the third columns belongs, a connection pattern is designed that the pixels of the third columns are connected to the odd-numbered gate lines and the even-numbered gate lines, alternately, along the first direction.
    Type: Grant
    Filed: August 25, 2015
    Date of Patent: August 29, 2017
    Assignee: Japan Display Inc.
    Inventors: Hideyuki Takahashi, Masakatsu Kitani, Seiichi Sato, Masato Nakamura, Koji Yamamoto
  • Patent number: 9685131
    Abstract: An objective is to provide a technique for reducing the size of the picture-frame region of the active-matrix substrate and improve the freedom of design, such as the freedom in designing the active-matrix substrate. An active-matrix substrate includes a group of gate lines and a group of source lines crossing the gate lines. At least some of the gate lines have a length that is smaller than the maximum value of the width of the active-matrix substrate as measured in the direction in which the gate lines extend. The active-matrix substrate further includes pixel electrodes connected with the gate lines and source lines, and gate line driving units (11) provided in the display region for switching the gate lines to the selected or non-selected state in response to a supplied control signal.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: June 20, 2017
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kohhei Tanaka, Hidefumi Yoshida
  • Patent number: 9568786
    Abstract: An array substrate, a liquid crystal display and a control method thereof are disclosed. The array substrate includes scanning lines, data lines, pixel units, and common lines. Each common line is disposed along a row of pixel units. The array substrate also includes a common voltage supply line, and dual-channel selection switches each having an output terminal connected to a set of common lines, two input terminals connected to a common voltage high level supply line and a common voltage low level supply line respectively to selectively apply a high level or a low level to the common lines, thereby avoiding delay of the common voltage Vcom and the Vcom drift during a display mode and improving the display effect for an image.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: February 14, 2017
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Chengfeng Zhang, Yuan Li, Jinjin Yang
  • Patent number: 9529236
    Abstract: A pixel structure includes a gate line, a first data line, first and second pixel electrodes, first and second active devices, an insulation layer, and first and second connection electrodes. The first and second pixel electrodes are respectively disposed aside a first edge and a second edge of the gate line. The first drain electrode and second drain electrode of the first and second active devices both extend toward the second pixel electrode. The first connection electrode is electrically connected to the first drain electrode through a first contact hole and connected to the first pixel electrode; the first connection electrode and the first data line overlap in the vertical projection direction. The second connection electrode is disposed aside the second edge, and the second connection electrode is connected to the second pixel electrode and electrically connected to the second drain electrode through a second contact hole.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 27, 2016
    Assignee: AU OPTRONICS CORP.
    Inventors: Ming-Haw Chang, Chun-Yi Chiang
  • Patent number: 9373650
    Abstract: A TFT array substrate is disclosed. The TFT array substrate includes a TFT area, which includes a TFT first electrode layer, a TFT second electrode layer, a TFT insulation layer, and a TFT etching stop layer. The TFT array substrate also includes also includes a storage capacitor, which includes a capacitor first electrode layer, a capacitor second electrode layer, a capacitor insulation layer, and a capacitor etching stop layer. The TFT first electrode layer and the capacitor first electrode layer are formed in a shared first electrode layer, the TFT second electrode layer and the capacitor second electrode layer are formed in a shared second electrode layer, the TFT insulation layer and the capacitor insulation layer are formed in a shared insulation layer, and the TFT etching stop layer and the capacitor etching stop layer are formed in a shared etching stop layer.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: June 21, 2016
    Assignees: Shanghai Tianma Micro-Electronics Co., Ltd., Tianma Micro-Electronics Co., Ltd.
    Inventor: Junhui Lou
  • Patent number: 9244322
    Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including an interlayer insulation film covering a first wiring line, a second wiring line and a third wiring line on the interlayer insulation film, and a first electrode which is located between the second wiring line and the third wiring line on the interlayer insulation film, is spaced apart from the second wiring line and the third wiring line, a second substrate including a second electrode which is opposed to each of the second wiring line and the third wiring line, and a liquid crystal layer between the first substrate and the second substrate.
    Type: Grant
    Filed: May 15, 2012
    Date of Patent: January 26, 2016
    Assignee: JAPAN DISPLAY INC.
    Inventors: Tomoko Kozuka, Hirokazu Morimoto, Arihiro Takeda
  • Patent number: 9218768
    Abstract: Disclosed an organic light-emitting diode display device in which the number of signal lines is minimized by sharing a predetermined signal line between adjacent pixels in a display panel having a plurality of signal lines formed therein, thereby improving an aperture ratio. The organic light-emitting diode display device includes a display panel defining pixels, a gate driver, a data driver, a multiplexer (MUX) electrically connecting an output terminal of the data driver and the pixels into a 1:1, 1:N (N is a natural number) or N:N structure, and a timing controller. Accordingly, the MUX is provided between the data driver and the pixels, and each pixel and signal lines are selectively connected through the MUX, so that it is possible to reduce the number of Integrated chips (ICs) provided by allowing a compensation circuit built in the data driver.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: December 22, 2015
    Assignee: LG DISPLAY CO., LTD.
    Inventor: HoYoung Lee
  • Patent number: 9201533
    Abstract: An array substrate for an in-cell type touch sensor liquid crystal display device includes: a substrate; a gate line and a data line on the substrate; a thin film transistor connected to the gate line and the data line; a first passivation layer on the thin film transistor; a common electrode on the first passivation layer; an etching preventing pattern covering the drain contact hole; an x sensing line and a y sensing line on the common electrode; a second passivation layer on the x sensing line and the y sensing line; and a pixel electrode on the second passivation layer.
    Type: Grant
    Filed: December 21, 2011
    Date of Patent: December 1, 2015
    Assignee: LG Display Co., Ltd.
    Inventors: Min-Su Kim, Myeong-Sik Lee
  • Patent number: 9182636
    Abstract: A pixel cell and an active matrix liquid crystal display are disclosed. The pixel cell includes a first scanning line, a second scanning line, and a thin film transistor set. The thin film transistor set includes a first thin film transistor and a second thin film transistor. The parasitic capacitance Cgd of the thin film transistor set satisfies the equation: Cgd=C1+C2. Wherein the change in capacitance of both c1 and c2 are inverse to each other by the same amount such that summation of a value of capacitance change in both c1 and c2 is equal to zero. In this way, the display detects result from different values of the parasitic capacitance of the pixel cells in different locations are overcome.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: November 10, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Jinjie Wang
  • Patent number: 9140936
    Abstract: A blue phase liquid crystal panel and a display device provide a transflective mode blue phase liquid crystal panel with a single cell gap so as to simplify the process. The blue phase liquid crystal panel comprises: a first substrate and a second substrate that are disposed opposite to each other so as to form a liquid crystal cell; a blue phase liquid crystal layer between the two substrates; gate lines and data lines arranged to intersect the gate lines to define pixel regions on an inner side of the first substrate. The blue phase liquid crystal panel has a single cell gap, and the pixel regions are divided into transmission regions and reflection regions. The light for display in the transmission region and the light for display in the reflection region of a same pixel region generate the same phase retardation after passing through the blue phase liquid crystal layer.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: September 22, 2015
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Chang Xie
  • Patent number: 9091572
    Abstract: A display device a display and a front panel. The front panel is made of plastic and is at least partly provided with a metallic coating. The coating is applied by means of physical vapor deposition. The metallic coating is electrically grounded when the display device is placed in operation.
    Type: Grant
    Filed: January 26, 2011
    Date of Patent: July 28, 2015
    Inventors: Marc Rawer, Mike Duss
  • Publication number: 20150138468
    Abstract: LCD device includes two substrates, a first and second color filters, two liquid crystal layers. The first color filters are formed on portions of the second substrate corresponding to border area The second color filters are formed on portions of the second substrate corresponding to the display area except the border area. A first liquid crystal layer between the first and the second substrate is comprised in border area, and a zero electric field is formed on the first liquid crystal layer so as to completely transmit light incident into the first liquid crystal layer therethrough. A borderline having various colors can be displayed by forming various patterns of color filters having various colors on portions of the second substrate corresponding to the border area under normally white mode, thereby producing picture frame effect while images are displayed on the screen.
    Type: Application
    Filed: January 30, 2015
    Publication date: May 21, 2015
    Inventors: YONG-HO YANG, Dong-Ho Lee, Soong-Yong Joo
  • Patent number: 9036212
    Abstract: A method is disclosed. The method includes generating a Continuous Tone Image (CTI) with all pixel values same as the first gray level and an initial Half Tone Image (HTI) with all pixel values equal to minimum absorptance level, computing a change in pixel error by toggling with all the possible output states and swapping with all neighbor pixels only if the stacking constraint is satisfied, updating the HTI with the maximum error decrease operation and continue to next pixel location till the end criteria is met. Once the end criteria is met, the updated HTI is saved as a final halftone screen for that gray level and copied as the initial HTI for the next gray level along with CTI pixel values updated to the next gray level till the final gray value is reached.
    Type: Grant
    Filed: January 6, 2012
    Date of Patent: May 19, 2015
    Assignee: Ricoh Production Print Solutions LLC
    Inventors: Kartheek Chandu, Mikel Stanich, Chai Wah Wu, Barry M. Trager
  • Publication number: 20150131015
    Abstract: According to one embodiment, a liquid crystal display includes a first substrate, a second substrate including a first color filter, located in an area corresponding to first to fourth color pixels, and having an aperture in an area including the second and third color pixels, a second color filter located in an area corresponding to the second color pixel, a third color filter located in an area corresponding to the third color pixel, and a black matrix extending and partitioning the first to fourth color pixels, and a liquid crystal layer held between the substrates. The black matrix includes portions extending on the first color filter, and portions extending on the first color filter between the first and second color pixels and between the third and fourth color pixels.
    Type: Application
    Filed: November 12, 2014
    Publication date: May 14, 2015
    Applicant: Japan Display Inc.
    Inventors: Eishi YAMAKAWA, Junichi KOBAYASHI
  • Publication number: 20150124187
    Abstract: There are provided a wavelength selective switch device, a communication apparatus and a wavelength switching method. The wavelength selective switch device includes an incidence unit; an exit unit; a wavelength diversifying-synthesizing unit for diversifying and multiplexing the respective incident lights in a first axis direction; a light adjustment unit for making the lights of respective wavelengths be not diversified in the second axis direction; a liquid crystal beam deflection unit having a plurality of pixels divided into sub-regions, for deflecting the lights of the respective wavelengths by changing phase-shift characteristics of the pixels in the sub-regions; a reflection unit, disposed in parallel with the liquid crystal beam deflection unit; a deflection driving unit for driving electrodes of the pixels to generate required phase-shift characteristics.
    Type: Application
    Filed: April 22, 2014
    Publication date: May 7, 2015
    Applicant: Wuhan Research Institute of Posts and Telecommunications
    Inventors: Dequan XIE, Quan YOU, Zichen LIU, Ying QIU, Miaofeng LI, Qi YANG
  • Patent number: 9013648
    Abstract: The present invention provides an antistatic structure of an array substrate, which includes: an effective zone (60) of an array substrate and a plurality of dummy wires (26) surrounding the effective zone (60). The effective zone (60) includes a plurality of signal wires (22) and a plurality of shorting bars (24) respectively in electrical connection with the plurality of signal wires (22). The dummy wires (26) are set to be respectively corresponding to and adjacent to outermost ones of the shorting bars (24) of the effective zone (60). The dummy wires (26) each include an inner side (28) that is close to the shorting bars (24) and forms a saw-toothed arrangement. The present invention arranges a dummy wire adjacent to each of the outermost ones of shorting bars and the dummy wire has one side that is close to the shorting bar and forms a saw-toothed arrangement.
    Type: Grant
    Filed: October 18, 2013
    Date of Patent: April 21, 2015
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xiangyang Xu, Weimin Chang, Zhiyang Song, Liang Wang
  • Patent number: 8999195
    Abstract: A liquid crystal smectic A composition that can be switched by the application of different electric fields across it between a first stable state (left hand block in FIG. 4) and at least one second stable state (right hand block in FIG. 4) in which the composition is less ordered than in the first state. The radiation transmission properties of the first and second states are different.
    Type: Grant
    Filed: January 9, 2012
    Date of Patent: April 7, 2015
    Assignee: Cambridge Enterprise Limited
    Inventors: Daping Chu, Huan Xu, William Alden Crossland, Anthony Bernard Davey
  • Patent number: 8994889
    Abstract: An object is to provide a display device with excellent display characteristics, where a pixel circuit and a driver circuit provided over one substrate are formed using transistors which have different structures corresponding to characteristics of the respective circuits. The driver circuit portion includes a driver circuit transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using a metal film, and a channel layer is formed using an oxide semiconductor. The pixel portion includes a pixel transistor in which a gate electrode layer, a source electrode layer, and a drain electrode layer are formed using an oxide conductor, and a semiconductor layer is formed using an oxide semiconductor. The pixel transistor is formed using a light-transmitting material, and thus, a display device with higher aperture ratio can be manufactured.
    Type: Grant
    Filed: September 30, 2014
    Date of Patent: March 31, 2015
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Junichiro Sakata, Masashi Tsubuku, Kengo Akimoto, Miyuki Hosoba, Masayuki Sakakura, Yoshiaki Oikawa
  • Publication number: 20150055039
    Abstract: To provide a liquid crystal element with a high contrast ratio capable of achieving both optical control that utilizes a memory property and optical control capable of supporting moving image displays. The two substrates are disposed with an angle formed by the respective orientation processing directions from 0° to less than 40°. The liquid crystal layer includes chiral material capable of generating a second orientation state that includes a twist different from that of the first orientation state in the liquid crystal molecules of the layer. The liquid crystal layer transitions from the second orientation state to the first orientation state and vice versa by the application of an electric field, and returns to the second orientation state when an electric field is applied in the second orientation state, thereby generating an orientation change in accordance with the size of the electric field, and the electric field is subsequently released.
    Type: Application
    Filed: August 20, 2014
    Publication date: February 26, 2015
    Applicant: STANLEY ELECTRIC CO., LTD.
    Inventors: Yasuo TOKO, Keisuke KATO
  • Patent number: 8964140
    Abstract: A liquid crystal display includes: a first substrate and a second substrate disposed opposite the first substrate; a liquid crystal layer interposed between the first and second substrates and including liquid crystal molecules; a gate line which transmits a gate signal; first and second data lines which respectively transmit first and second data voltages, the first and second data voltages having opposite polarities; a first switching element connected to the gate line and the first data line; a second switching element connected to the gate line and the second data line; a first subpixel electrode connected to the first switching element; and a second subpixel electrode connected to the second switching element. The first and second subpixel electrodes overlap portions of the first and second data lines. The first and second subpixel electrodes include first and second branches, respectively, which are alternately arranged between the first and second data lines.
    Type: Grant
    Filed: March 18, 2013
    Date of Patent: February 24, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Woon Kim, Hee-Seop Kim, Hyang-Yul Kim, Joo-Nyung Jang, Chong-Chul Chai, Mee-Hye Jung, Hwa-Sung Woo, Cheol Shin, Dong-Chul Shin
  • Publication number: 20150049274
    Abstract: A display apparatus includes: a display panel including a gate line, a data line, a switching element connected to the gate line and the data line, a liquid crystal capacitor having a first terminal connected to the switching element, and a storage capacitor having a first terminal connected to the switching element; and a leakage current generating part which generates a leakage current in the switching element.
    Type: Application
    Filed: May 19, 2014
    Publication date: February 19, 2015
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang-Mi KIM, Kyoung-Won LEE, Ho-Yong JUNG, Cheol-Woo PARK, Tae-Hyeong AN, Hee-Soon JEONG
  • Publication number: 20150042912
    Abstract: According to one embodiment, a liquid crystal display apparatus includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first electrode, a wall portion, a switching element, a second electrode and a vertical alignment film. The second substrate includes a third electrode and a second vertical alignment film. The second electrode includes a wall electrode provided on a wall electrode formation surface forming a side surface of the wall portion.
    Type: Application
    Filed: August 8, 2014
    Publication date: February 12, 2015
    Applicant: Japan Display Inc.
    Inventors: Emi Higano, Mitsutaka Okita, Daiichi Suzuki, Kazuhiro Nishiyama
  • Patent number: 8947609
    Abstract: LCD device includes two substrates, a first and second color filters, two liquid crystal layers. The first color filters are formed on portions of the second substrate corresponding to border area The second color filters are formed on portions of the second substrate corresponding to the display area except the border area. A first liquid crystal layer between the first and the second substrate is comprised in border area, and a zero electric field is formed on the first liquid crystal layer so as to completely transmit light incident into the first liquid crystal layer therethrough. A borderline having various colors can be displayed by forming various patterns of color filters having various colors on portions of the second substrate corresponding to the border area under normally white mode, thereby producing picture frame effect while images are displayed on the screen.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: February 3, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-Ho Yang, Dong-Ho Lee, Soong-Yong Joo
  • Patent number: 8908115
    Abstract: An object of the invention is to provide a circuit technique which enables reduction in power consumption and high definition of a display device. A switch controlled by a start signal is provided to a gate electrode of a transistor, which is connected to a gate electrode of a bootstrap transistor. When the start signal is input, a potential is supplied to the gate electrode of the transistor through the switch, and the transistor is turned off. The transistor is turned off, so that leakage of a charge from the gate electrode of the bootstrap transistor can be prevented. Accordingly, time for storing a charge in the gate electrode of the bootstrap transistor can be shortened, and high-speed operation can be performed.
    Type: Grant
    Filed: August 23, 2013
    Date of Patent: December 9, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Atsushi Umezaki, Hiroyuki Miyake
  • Publication number: 20140347584
    Abstract: According to one embodiment, liquid crystal display device includes an array substrate, a counter substrate, and a liquid crystal layer. The array substrate includes a plurality of pixel electrodes, a plurality of gate lines, a plurality of source lines, a plurality of switching elements, and a plurality of light shielding layers. Each of the light shielding layers extends to cross, among the source lines, even-numbered source lines arranged in the direction of the extension of the gate lines.
    Type: Application
    Filed: April 29, 2014
    Publication date: November 27, 2014
    Applicant: Japan Display Inc.
    Inventor: Masakatsu Kitani
  • Patent number: 8896031
    Abstract: An organic light emitting diode (OLED) display includes a substrate where a plurality of pixels are formed, a first pixel defining layer on the substrate, the first pixel defining layer dividing the plurality of pixels, a connection wire on the first pixel defining layer, the connection wire electrically connecting two adjacent pixels, and a second pixel defining layer on the first pixel defining layer, the second pixel defining layer covering the connection wire.
    Type: Grant
    Filed: September 4, 2012
    Date of Patent: November 25, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Guang Hai Jin, Jae-Beom Choi, Kwan-Wook Jung, June-Woo Lee, Moo-Jin Kim, Ga-Young Kim