Plural Nonredundant Transistors Per Pixel Patents (Class 349/48)
  • Patent number: 11940703
    Abstract: A liquid crystal display device with a high aperture ratio is provided. The display device includes a transistor, a first insulating layer, a second insulating layer, a third insulating layer, a first conductive layer, a pixel electrode, a common electrode, and a liquid crystal layer in a pixel. The first insulating layer is positioned over a channel formation region of the transistor. The first conductive layer is positioned over the first insulating layer. The second insulating layer is positioned over the transistor, the first insulating layer, and the first conductive layer. The pixel electrode is positioned over the second insulating layer, the third insulating layer is positioned over the pixel electrode, the common electrode is positioned over the third insulating layer, and the liquid crystal layer is positioned over the common electrode. The common electrode includes a region overlapping with the first conductive layer with the pixel electrode positioned therebetween.
    Type: Grant
    Filed: May 26, 2023
    Date of Patent: March 26, 2024
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kouhei Toyotaka, Kazunori Watanabe, Susumu Kawashima, Kei Takahashi, Koji Kusunoki, Masataka Nakada, Ami Sato
  • Patent number: 11887553
    Abstract: A display panel for displaying an image is provided with a plurality of pixels arranged in a matrix. Each pixel includes one or more units each including a plurality of subunits. Each subunit includes a transistor in which an oxide semiconductor layer which is provided so as to overlap a gate electrode with a gate insulating layer interposed therebetween, a pixel electrode which drives liquid crystal connected to a source or a drain of the transistor, a counter electrode which is provided so as to face the pixel electrode, and a liquid crystal layer provided between the pixel electrode and the counter electrode. In the display panel, a transistor whose off current is lower than 10 zA/?m at room temperature per micrometer of the channel width and off current of the transistor at 85° C. can be lower than 100 zA/?m per micrometer in the channel width.
    Type: Grant
    Filed: January 3, 2023
    Date of Patent: January 30, 2024
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 11846848
    Abstract: A display apparatus includes: a display panel; a backlight assembly including a light source; and an optical film group including: a functional material layer; wherein: the light source is configured to emit a white light; and the functional material layer is configured to absorb light in at least one of a range of 480 nm-520 nm or a range of 575 nm-600 nm to thereby reshape the white light to have blue, red, and green peaks; and the display apparatus further includes a polarizer (POL) including one or more polarizer sub-layers, wherein the functional material layer and one of the one or more polarizer sub-layers are configured as one same layer.
    Type: Grant
    Filed: April 10, 2022
    Date of Patent: December 19, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xibin Shao, Dongchuan Chen, Yanping Liao
  • Patent number: 11790847
    Abstract: A display substrate and a display device are provided, which includes: a base substrate, a plurality of reset signal lines and a first electrode layer, the first electrode layer includes a plurality of first power supply voltage lines, a plurality of first signal lines, a plurality of first transfer electrodes, a plurality of second transfer electrodes and a plurality of third transfer electrodes, a value of a ratio of an area of an overlapping portion of an orthographic projection of the first body sub-portion and an orthographic projection of the first electrode layer on the board surface of the base substrate, and an area of an overlapping portion of an orthographic projection of the second body sub-portion on the board surface of the base substrate and the orthographic projection of the first electrode layer on the board surface of the base substrate ranges from 0.82 to 1.02.
    Type: Grant
    Filed: August 11, 2021
    Date of Patent: October 17, 2023
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Lili Du, Kaipeng Sun, Hongjun Zhou, Yue Long
  • Patent number: 11791352
    Abstract: The present application provides a display panel and a display device. The display panel includes a plurality of light-sensing circuits and a position detection circuit. The plurality of light-sensing circuits are disposed in the display panel and are arranged in an array. Each of the plurality of light-sensing circuits includes a light-sensing transistor. The present application disposes a quantum dot layer, which can absorb interactive light and convert its light intensity signal into an electrical signal, and determines an irradiation position of the interactive light through the position detection circuit, so that an interaction with light with a longer wavelength can be realized.
    Type: Grant
    Filed: October 30, 2020
    Date of Patent: October 17, 2023
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Wei Cui, Miao Jiang, Jiangbo Yao, Lixuan Chen, Xin Zhang
  • Patent number: 11733574
    Abstract: A liquid crystal display device with a high aperture ratio is provided. The display device includes a transistor, a first insulating layer, a second insulating layer, a third insulating layer, a first conductive layer, a pixel electrode, a common electrode, and a liquid crystal layer in a pixel. The first insulating layer is positioned over a channel formation region of the transistor. The first conductive layer is positioned over the first insulating layer. The second insulating layer is positioned over the transistor, the first insulating layer, and the first conductive layer. The pixel electrode is positioned over the second insulating layer, the third insulating layer is positioned over the pixel electrode, the common electrode is positioned over the third insulating layer, and the liquid crystal layer is positioned over the common electrode. The common electrode includes a region overlapping with the first conductive layer with the pixel electrode positioned therebetween.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: August 22, 2023
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Kouhei Toyotaka, Kazunori Watanabe, Susumu Kawashima, Kei Takahashi, Koji Kusunoki, Masataka Nakada, Ami Sato
  • Patent number: 11727861
    Abstract: Provided are a pixel drive circuit, a drive circuit of a display panel, and a display apparatus. The pixel drive circuit includes a switch unit and a drive unit, the switch unit is connected to the drive unit, and the drive unit is configured to be connected to a plurality of sub-pixel units; the switch unit is configured to receive a scan signal and a data signal, be switched on under action of the scan signal, and send the data signal to the drive unit; and the drive unit is configured to send the data signal to the plurality of sub-pixel units connected thereto in a time division manner.
    Type: Grant
    Filed: February 7, 2021
    Date of Patent: August 15, 2023
    Assignees: BOE MLED Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Xiurong Wang, Wei Hao, Lingyun Shi, Qibing Gu, Guofeng Hu, Tao Yang, Mengmeng Wang, Wenhao Liu
  • Patent number: 11686984
    Abstract: An array substrate and a reflective display substrate are disclosed. The array substrate includes a base, and a plurality of data lines and a plurality of sub-pixels that are disposed on the base. The sub-pixel includes a reflective pixel electrode and a TFT. An orthographic projection of the pixel electrode in each sub-pixel on the base is overlapped with orthographic projections of a first electrode, a first data line and a second data line.
    Type: Grant
    Filed: January 27, 2022
    Date of Patent: June 27, 2023
    Assignees: HEFEI BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liqing Liao, Hongmin Li, Silin Feng, Ying Wang, Fengjing Tang
  • Patent number: 11681189
    Abstract: A display device including a gate line and a storage line arranged in a first direction, a data line and a partial voltage reference line arranged in a second direction crossing the first direction, a first TFT, a second TFT, and a third TFT each including a drain electrode and a source electrode, a color filter disposed on the first, second, and third TFTs and including a first via hole exposing the source and drain electrodes of the third TFT, and an insulating layer disposed on the color filter and including a first contact hole exposing the storage line and a second contact hole exposing the drain electrode of the third TFT, in which the first and second contact holes are disposed in the first via hole when viewed in plan.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do Yeong Park, Seul Bee Lee, Soo Hong Cheon
  • Patent number: 11610539
    Abstract: Provided are a display panel and a display device. The display panel includes data lines arranged along the row direction, the operation of the data lines includes a data writing phase; and at least one data line meets the following: the at least one data line receives a data signal, while at least one of the other data lines receives a reset signal simultaneously. According to the provided display panel, the data reset process of the at least one data line overlaps with the data writing process of the other data lines.
    Type: Grant
    Filed: April 18, 2022
    Date of Patent: March 21, 2023
    Assignee: Hubei Yangtze Industrial Innovation Center Of Advanced Display Co., Ltd.
    Inventor: Shaowei Liu
  • Patent number: 11604387
    Abstract: A pixel structure includes a data line, a scan line, a common signal line, a first switching element, a second switching element, a first pixel electrode, and a second pixel electrode. The first switching element is electrically connected to the scan line and the data line. The second switching element is electrically connected to the scan line and the common signal line. The first pixel electrode is electrically connected to the first switching element. The second pixel electrode is electrically connected to the second switching element. The second pixel electrode surrounds the first pixel electrode.
    Type: Grant
    Filed: August 19, 2020
    Date of Patent: March 14, 2023
    Assignee: Au Optronics Corporation
    Inventors: Yi-Chu Wang, Cheng-Wei Lai, Fu-Chun Tsao, Hsiao-Tung Lin, Wei-Cheng Cheng
  • Patent number: 11562702
    Abstract: The present invention relates to a dimming unit including: a dimming panel; and drive circuitry, the dimming panel sequentially including a first substrate, a liquid crystal layer, and a second substrate, the first substrate sequentially including an insulating substrate, a lower-layer electrode, a first insulating layer, multiple first electrodes, a second insulating layer, and a second electrode which is provided with multiple parallel linear electrodes and to which a constant voltage is applied, the first electrodes including multiple island electrodes which are spaced from each other in a plan view and are electrically connected to each other, at least one of the island electrodes being electrically connected to the lower-layer electrode through a contact hole, the drive circuitry controlling voltages applied to the respective first electrodes.
    Type: Grant
    Filed: March 26, 2021
    Date of Patent: January 24, 2023
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Fumikazu Shimoshikiryoh, Shigeyuki Yamada, Takehisa Yoshida
  • Patent number: 11536889
    Abstract: A novel display device that is highly convenient, useful, or reliable is provided. The display device includes a light guide plate, a display panel, and an intermediate layer, and the light guide plate includes a first surface and a second surface. The first surface is irradiated with light, the second surface has a function of distributing light, the second surface is in contact with the intermediate layer, and the second surface has a first refractive index N1 in a region in contact with the intermediate layer. The display panel faces the second surface, the display panel is in contact with the intermediate layer, and the display panel has a function of scattering the distributed light. The intermediate layer includes a region positioned between the second surface and the display panel, and the intermediate layer has a second refractive index N2 in a region in contact with the second surface. The second refractive index N2 is smaller than the first refractive index N1.
    Type: Grant
    Filed: December 2, 2019
    Date of Patent: December 27, 2022
    Assignee: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei Yamazaki, Ryo Hatsumi, Tetsuji Ishitani, Akio Yamashita
  • Patent number: 11488535
    Abstract: A pixel driving circuit, a method of driving the same, and a display panel are provided. The pixel driving circuit includes a scanning line, a data line, an organic light emitting diode, a first control switch, a second control switch, and a storage electric capacity. The scanning line drives a control end of the second control switch. An input end of the second control switch is connected to the data line. An output end of the second control switch drives a control end of the first control switch. A first power source signal drives an input end of the first control switch. The organic light emitting diode is coupled between an output end of the first control switch and a second power source signal. The storage electric capacity is coupled between a first reference signal and the control end of the first control switch.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: November 1, 2022
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Xueshun Hou
  • Patent number: 11469257
    Abstract: Disclosed are a display panel and a display device. The display panel includes a display area, a wiring area, and a bending area connecting the display area and the wiring area; the bending area includes a first boundary on a side closer to the display area; in the first direction, an extension length of the first boundary is less than an extension length of the wiring area; in the second direction, a vertical projection of the first boundary in the wiring area is located within the coverage of the wiring area; in the second direction, the display area includes sub-pixel rows, and the last sub-pixel row is located on a side of the display area closer to the wiring area; in the first direction, a first sub-pixel in the last sub-pixel row is located on a side of the wiring area boundary closer to the center of the display panel.
    Type: Grant
    Filed: August 31, 2020
    Date of Patent: October 11, 2022
    Assignee: Wuhan Tianma Micro-Electronics Co., Ltd.
    Inventors: Xiufeng Zhou, Huangyao Wu, Hongbo Zhou, Zhiqiang Xia
  • Patent number: 11442318
    Abstract: The present disclosure relates to a dual-gate array substrate and a display device. A dual-gate array substrate includes: a plurality of gate lines arranged in a first direction and each extended in a second direction that is perpendicular to the first direction; a plurality of primary signal lines and secondary signal lines arranged alternately in the second direction and extended in the first direction; and a plurality of pixel units. The primary signal lines are connected to a drive unit, and connected respectively to the pixel units that are adjacent thereto. Common electrodes include a plurality of main electrodes and a plurality of branching electrodes. An orthographic projection of the main electrode on the dual-gate array substrate does not overlap with those of corresponding ones, adjacent to the main electrode, of the pixel electrodes and at least covers the primary signal line.
    Type: Grant
    Filed: October 18, 2019
    Date of Patent: September 13, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Pengcheng Zang, Weiyun Huang, Xiaojing Qi, Tingliang Liu
  • Patent number: 11409170
    Abstract: An array substrate and a display panel are provided. The array substrate includes a substrate, a first metal layer, an active material layer, a second metal layer, a pixel electrode layer, and a common electrode layer. The first metal layer includes a gate electrode layer, scan lines, and a shielding metal layer. The shielding metal layer includes a plurality of shielding metal wirings. At least one corner on a portion of each of the shielding metal wirings overlapping pixel opening areas is designed as an outer corner, and a protrusion is arranged at the outer corner, thereby relieving light leakage at metal intersections.
    Type: Grant
    Filed: July 3, 2020
    Date of Patent: August 9, 2022
    Inventor: Yihe Zhang
  • Patent number: 11353761
    Abstract: A display panel and a method of manufacturing the same are provided. The display pane includes an array substrate and a color filter substrate disposed opposite to each other, and a liquid crystal layer disposed between the array substrate and the color filter substrate. The array substrate includes a transparent electrode layer. The transparent electrode layer includes a pixel electrode and a data line black matrix less (DBS) electrode spaced with each other, a height of the DBS electrode is 0 to 1 micrometer lower than a height of the pixel electrode.
    Type: Grant
    Filed: November 19, 2019
    Date of Patent: June 7, 2022
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD
    Inventor: Aihua Tang
  • Patent number: 11347122
    Abstract: Provided is a display apparatus including a first substrate, a second substrate, and a liquid crystal layer. The first substrate includes a gate line, a data line, a storage electrode, and a switching element. The switching element is connected to a data line and a gate line. The first substrate further includes a pixel electrode, a shielding electrode, and first and second capacitor electrodes. The pixel electrode is connected to an output electrode of the switching element, and the shielding electrode includes a line portion disposed along the data line and an extension portion extended from the line portion. The first capacitor electrode is extended from the output electrode and overlaps the pixel electrode and the storage electrode. The second capacitor electrode is disposed spaced apart from the first capacitor electrode and overlaps the extension portion electrode the shielding electrode and the storage electrode.
    Type: Grant
    Filed: October 15, 2020
    Date of Patent: May 31, 2022
    Inventor: Huigyeong Yun
  • Patent number: 11333935
    Abstract: A liquid crystal display panel having a plurality of pixels arrayed in a matrix, the liquid crystal display panel comprising: a plurality of first signal lines extending in a row direction or a column direction; a transistor provided in each of the plurality of pixels; and a pixel electrode provided in each of the plurality of pixels and connected to the first signal line corresponding to the pixel via the transistor corresponding to the pixel, wherein, in each of the plurality of pixels, the pixel electrode includes a first pixel electrode and a second pixel electrode that are separated across the first signal line corresponding to the pixel.
    Type: Grant
    Filed: January 30, 2020
    Date of Patent: May 17, 2022
    Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PASONA KNOWLEDGE PARTNER INC.
    Inventor: Teruhisa Nakagawa
  • Patent number: 11327383
    Abstract: The present application discloses a display panel having an array of a plurality of subpixels. The display panel includes a plurality of light modulators configured to modulate display contrast of the display panel. Each of the plurality of light modulators is in a light modulation region configured to allow light transmitting through the display panel. Light transmittance in the light modulation region is controlled by a first gate line and a first data line for driving image display in a first subpixel of the plurality of subpixels.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: May 10, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Shi Shu, Chuanxiang Xu, Jiangnan Lu, Yang Yue, Yue Shi
  • Patent number: 11314135
    Abstract: Provided are an array substrate and a method for manufacturing the same, a display device and a method for manufacturing the same. In the array substrate, the drain of the thin film transistor is extended to form a drain extension line, wherein the drain extension line is between adjacent sub-pixel units of the pixel region, thus it can block the light at the boundary between the sub-pixel units, thereby avoiding light leakage duo to the disordered electric field at the boundary between the sub-pixel units. The array substrate of the present disclosure is suitable for a multi-domain oriented IPS mode array substrate. The drain extension line can be used as a light blocking strip to prevent light leakage due to the disordered electric field at the boundary between the sub-pixels, and is overlapped with the middle portion of the common electrode line to form a storage capacitor.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunping Long, Xinyin Wu, Yong Qiao
  • Patent number: 11211025
    Abstract: A liquid crystal display panel, which includes: a plurality of pixels arranged in a row direction and a column direction, the pixel comprising a transistor; a plurality of data lines extending in the column direction, and including a first data line and a second data line; and a plurality of scan lines extending in the row direction, and crossing the plurality of data lines. The first data line and the second data line are disposed between two adjacent pixel columns, and partially overlap in a thickness direction of the liquid crystal display panel.
    Type: Grant
    Filed: February 19, 2020
    Date of Patent: December 28, 2021
    Assignee: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventor: Teruhisa Nakagawa
  • Patent number: 11211430
    Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes a first area and a second area. A pixel density of the first area is greater than that of the second area. In the second area, each pixel includes a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The first sub-pixel, the third sub-pixel, and the fourth sub-pixel are in a same sub-pixel row. The first sub-pixel is between the third sub-pixel and the fourth sub-pixel. The first sub-pixel and the second sub-pixel are in a same sub-pixel column. The first sub-pixel and the second sub-pixel are respectively in adjacent sub-pixel rows. The first sub-pixel and the second sub-pixel has a same emission color. The first sub-pixel, the third sub-pixel, and the fourth sub-pixel have different emission colors.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: December 28, 2021
    Assignees: Chengdu BOE Optoelectronics Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Linhong Han, Yi Zhang, Hengzhen Liang, Shikai Qin
  • Patent number: 11143919
    Abstract: A liquid crystal display includes: a first substrate; a gate line provided in a first direction on the first substrate; a data line insulated from the gate line and provided in a second direction that is perpendicular to the first direction; a sub-spacer overlapping the data line and provided in a bar shape extending in the second direction; a second substrate overlapping the first substrate; and a liquid crystal layer provided between the first substrate and the second substrate, wherein the sub-spacer includes a separation region from which a part of the sub-spacer is removed.
    Type: Grant
    Filed: May 19, 2019
    Date of Patent: October 12, 2021
    Inventors: Sae Ron Park, Chang Hun Kwak, Jin Suek Kim
  • Patent number: 11086179
    Abstract: A display device includes a first scan line, a second scan line, a first data line, a first pixel unit, a second pixel unit, and a first connection line. The first pixel unit includes a first main-active device, a first sub-active device, a first main-pixel electrode, and a first sub-pixel electrode. The first main-active device is electrically connected with the first scan line and the first data line. The first sub-active device is electrically connected with the first scan line. The second pixel unit includes a second main-active device, a second sub-active device, a second main-pixel electrode, and a second sub-pixel electrode. The second main-active device and the second-sub active device are electrically connected with the second scan line. The first connection line is electrically connected with the first main-active device and the second sub-active device.
    Type: Grant
    Filed: August 6, 2019
    Date of Patent: August 10, 2021
    Assignee: Au Optronics Corporation
    Inventors: Yen-Hua Lo, Sih-Yan Lin, Hsin-Chun Huang, Hsing-Yi Hsieh
  • Patent number: 11079633
    Abstract: A liquid crystal display apparatus includes first and second substrates and a liquid crystal layer of vertical alignment type. The first substrate includes pixel electrodes and a first alignment film, whereas the second substrate includes a counter electrode and a second alignment film. Each pixel includes first and second subpixels which allow respectively different voltages to be applied across the liquid crystal layer. Each pixel electrode includes first and second subpixel electrodes. Each of the first and second subpixels includes first to fourth liquid crystal domains having respectively different reference alignment directions being defined by the first and second alignment films. First to fourth directions, which are the reference alignment directions of the first to fourth liquid crystal domains, each make an angle which is substantially equal to an odd multiple of 45° with respect to the pixel transverse direction.
    Type: Grant
    Filed: May 28, 2020
    Date of Patent: August 3, 2021
    Assignees: SAKAI DISPLAY PRODUCTS CORPORATION, SHARP KABUSHIKI KAISHA
    Inventors: Mitsuaki Hirata, Fumikazu Shimoshikiryoh
  • Patent number: 11048131
    Abstract: A display panel includes a first substrate; a scan line and a data line disposed on the first substrate and extending along a first direction and a second direction, respectively, wherein the data line intersects the scan line; an active layer disposed on the first substrate. In a top view, the active layer includes: a first channel region overlapping a portion of the scan line; a second channel region overlapping another portion of the scan line; a non-channel region not overlapping the scan line and connected between the first channel region and the second channel region; a long region extended along the second direction; wherein a portion of the non-channel region extends along the first direction, the portion has a first width in the second direction, the long region has a second width in the first direction, and the first width is greater than the second width.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: June 29, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Hsing-Yi Liang, Kuei-Ling Liu, Te-Yu Lee
  • Patent number: 10962852
    Abstract: A liquid crystal display device includes a substrate, first through third thin-film transistors (“TFTs”) disposed on the substrate, and first and second sub-pixel electrodes disposed above the first through third TFTs. The second and third TFTs share a single output terminal as their output terminals, the first sub-pixel electrode is electrically connected to an output terminal of the first TFT, and the second sub-pixel electrode is electrically connected to the single output terminal of the second and third TFTs.
    Type: Grant
    Filed: January 15, 2018
    Date of Patent: March 30, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kye Uk Lee, Ja Yong Koo, Kee Bum Park, Jae Yong Shin, Seong Young Lee, Seul Bee Lee, Woong Lee
  • Patent number: 10852594
    Abstract: A liquid crystal display includes: a liquid crystal panel including a liquid crystal layer, a pixel electrode, and a common electrode; and a backlight unit including a light source to provide light to the liquid crystal panel. The pixel electrode includes a longitudinal electrode having a bar shape and extending in a vertical direction; a transverse electrode having a bar shape, crossing the longitudinal electrode, and extending in a horizontal direction; and a branch electrode having a bar shape, extending from the longitudinal or transverse electrode, and including an oblique part extending in an oblique direction. The common electrode overlaps the longitudinal electrode, and a longitudinal opening extending in the vertical direction is defined in the common electrode, and a width of a part of the pixel electrode where the longitudinal and the transverse electrodes cross each other is substantially the same as a width of the transverse electrode.
    Type: Grant
    Filed: September 10, 2019
    Date of Patent: December 1, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yeon Cu Kim, Israel Esteban Lazo Martinez, Ki Chui Shin
  • Patent number: 10747062
    Abstract: A liquid crystal display panel includes in the following order: a first substrate including pixel electrodes; a first vertical alignment film; a liquid crystal layer containing liquid crystal molecules; a second vertical alignment film; and a second substrate including a counter electrode. The liquid crystal display panel includes pixels each including four alignment regions which provide different tilt azimuths to the liquid crystal molecules and are arranged in a longitudinal direction of each pixel. The liquid crystal display panel includes first, second, third, and fourth alignment regions providing the respective specific alignment azimuths. The liquid crystal molecules are aligned in a direction substantially perpendicular to the first and second vertical alignment films and at a tilt in the respective tilt azimuth directions with no voltage applied to the liquid crystal layer and are to be more tilted in the respective tilt azimuth directions upon application of voltage to the liquid crystal layer.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 18, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Fumikazu Shimoshikiryoh, Takehisa Yoshida
  • Patent number: 10685990
    Abstract: A display panel and a display device are provided. The display panel includes a display area configured to display an image and a dummy pixel area disposed outside of the display area. The dummy pixel area has a plurality of dummy pixels disposed therein. Each dummy pixel includes a pixel protection unit. The dummy pixels are defined by crisscrossing data metal lines and gate metal lines in a vertical direction and a horizontal direction, respectively. A pattern of a projection of a semiconductor layer on the horizontal plane intersects the corresponding data metal line, is separated from the corresponding gate metal line, and is disposed toward a center of each dummy pixel, to prevent the display device from poor display due to contact between the semiconductor layer and the gate metal lines in the dummy pixel area when electrostatic discharge occurs.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: June 16, 2020
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Zuyou Yang
  • Patent number: 10678097
    Abstract: A liquid crystal display panel includes in the following order: a first substrate including pixel electrodes; a first vertical alignment film; a liquid crystal layer containing liquid crystal molecules; a second vertical alignment film; and a second substrate including a counter electrode. The liquid crystal display panel includes pixels each including four alignment regions which provide different tilt azimuths to the liquid crystal molecules and are arranged in a longitudinal direction of each pixel. The liquid crystal display panel includes first, second, third, and fourth alignment regions providing the respective specific alignment azimuths. The liquid crystal molecules are aligned in a direction substantially perpendicular to the first and second vertical alignment films and at a tilt in the respective tilt azimuth directions with no voltage applied to the liquid crystal layer and are to be more tilted in the respective tilt azimuth directions upon application of voltage to the liquid crystal layer.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: June 9, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Fumikazu Shimoshikiryoh, Takehisa Yoshida
  • Patent number: 10573833
    Abstract: A flexible display substrate includes a flexible base substrate, and a plurality of conductive terminals and a stress relief layer which are arranged sequentially on the flexible base substrate and disposed in a bonding region of the flexible base substrate. The bonding region includes Pad regions. The stress relief layer is provided with via holes on positions corresponding to the Pad regions respectively, and the via holes are used for exposing conductive surfaces of the conductive terminals respectively. The conductive surfaces are used for bonding an IC.
    Type: Grant
    Filed: October 31, 2018
    Date of Patent: February 25, 2020
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Liqiang Chen, PaoMing Tsai, Jianwei Li, Dejun Bu, Song Zhang
  • Patent number: 10564490
    Abstract: An array substrate, a method for fabricating the same, and a display device are disclosed. The array substrate comprises a plurality of sub-pixels in a display region which are defined by gate lines and data lines intersecting with each other. The array substrate further comprises a common electrode and a pixel electrode on the substrate. The common electrode comprises a plurality of first strip-shaped sub-electrodes, wherein each of the first strip-shaped sub-electrodes runs through the display region; and a common electrode line which electrically connects all of the first strip-shaped sub-electrodes.
    Type: Grant
    Filed: May 30, 2018
    Date of Patent: February 18, 2020
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
    Inventors: Shuai Yuan, Xiaona Liu, Yuqiong Chen, Mengjie Wang, Ning Li, Chenchen Wu, Ziyi Zheng
  • Patent number: 10473830
    Abstract: The present invention provides a display device including a display panel and a haze layer. The display panel includes a plurality of pixels and a color determining surface. The orthogonal projection of each of the plurality of pixels onto the color determining surface forms a plurality of adjacent pixel ranges. The haze layer is disposed on a side of the color determining surface and has a haze surface facing away from the color determining surface. The haze layer has a scattering coefficient ranging from ?1.4 to 0. The haze surface includes a first location corresponding to the center of the first pixel range, and a second location corresponding to a location away from the first edge towards the second pixel range wherein the distance therebetween ranges from 87 ?m to 174 ?m.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: November 12, 2019
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Wang-Shuo Kao, Yu-Han Chiang, Ya-Chen Kao, Kai-Chieh Chang, Shang-Chiang Lin
  • Patent number: 10453869
    Abstract: A load related to a scanning line is decreased and a load related to a common electrode is decreased without decrease in an aperture ratio of each pixel. A display apparatus has a red sub-pixel and a green sub-pixel. A distance in the Y-axis direction between a pedestal electrode and a scanning line that drives a transistor in a plan view in the red sub-pixel is longer than a distance in the Y-axis direction between a pedestal electrode and a scanning line that drives a transistor in a plan view in the green sub-pixel. Furthermore, a superposed width of a light shielding film with a red pixel region in the Y-axis direction is larger than a superposed width of the light shielding film with a green pixel region in the Y-axis direction.
    Type: Grant
    Filed: May 29, 2018
    Date of Patent: October 22, 2019
    Assignee: Japan Display Inc.
    Inventor: Tadayoshi Katsuta
  • Patent number: 10416514
    Abstract: The present disclosure provides a pixel circuit and a liquid crystal display circuit. The pixel circuit comprises a gate line, a data line, a first common line, a second common line, a first primary field-effect transistor (FET), a second primary FET, a first secondary FET, and a second secondary FET. A voltage of the first common line is different from a voltage of the second common line.
    Type: Grant
    Filed: November 24, 2017
    Date of Patent: September 17, 2019
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Qiming Gan
  • Patent number: 10409127
    Abstract: According to one embodiment, a display device includes pixel circuits arranged in a matrix in a display area, and the pixel circuits each includes a display element, a capacitor which applies voltage to at least one of electrodes of the display element, a first switch which supplies voltage to the capacitor when in an on state, a second switch which is set in an off state with the first switch when the first switch is in the off state, and sets the capacitor in a floating state.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: September 10, 2019
    Assignee: Japan Display Inc.
    Inventor: Yoshiro Aoki
  • Patent number: 10338430
    Abstract: There is provided a liquid crystal display apparatus having the following feature: although the liquid crystal display apparatus has a step between its display screen and outermost surface, the step is hardly recognized; and the liquid crystal display apparatus can achieve bright display. A liquid crystal display apparatus according to the present invention includes a liquid crystal cell; a first polarizer arranged on a back surface side of the liquid crystal cell; a second polarizer arranged on a viewer side of the liquid crystal cell; a cover sheet arranged on a viewer side of the second polarizer, the cover sheet having an opening portion at a position corresponding to a display region of the liquid crystal cell; and a third polarizer arranged on a viewer side of the cover sheet to cover the opening portion, wherein the opening portion of the cover sheet is filled with a pressure-sensitive adhesive.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: July 2, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Eiko Suefusa, Yoshitsugu Kitamura, Keisuke Kimura, Seiji Umemoto
  • Patent number: 10338431
    Abstract: A liquid crystal display apparatus includes a liquid crystal cell; a first polarizer arranged on a back surface side of the liquid crystal cell; a second polarizer arranged on a viewer side of the liquid crystal cell; a cover sheet arranged on a viewer side of the second polarizer, the cover sheet having a transmission portion at a position corresponding to a display region of the liquid crystal cell; a first optical compensation layer arranged on a viewer side of the cover sheet, the first optical compensation layer having an Re(550) of from 100 nm to 180 nm; and a third polarizer arranged on a viewer side of the first optical compensation layer, wherein an angle formed by a slow axis direction of the first optical compensation layer and an absorption axis direction of the third polarizer is from 35° to 55° or from 125° to 145°.
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: July 2, 2019
    Assignee: NITTO DENKO CORPORATION
    Inventors: Katsunori Takada, Eiko Suefusa, Yoshitsugu Kitamura, Keisuke Kimura, Seiji Umemoto
  • Patent number: 10304873
    Abstract: It is an object to decrease the number of transistors connected to a capacitor. In a structure, a capacitor and one transistor are included, one electrode of the capacitor is connected to a wiring, and the other electrode of the capacitor is connected to a gate of the transistor. Since a clock signal is input to the wiring, the clock signal is input to the gate of the transistor through the capacitor. Then, on/off of the transistor is controlled by a signal which synchronizes with the clock signal, so that a period when the transistor is on and a period when the transistor is off are repeated. In this manner, deterioration of the transistor can be suppressed.
    Type: Grant
    Filed: June 18, 2018
    Date of Patent: May 28, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 10292485
    Abstract: This disclosure generally relates to a hammock strap. The hammock strap includes an elongated length of strap material that is separated into a first strap and a second strap. The first strap and the second strap are woven together at one or more separation points to form eyelets between the first strap and the second strap.
    Type: Grant
    Filed: January 23, 2018
    Date of Patent: May 21, 2019
    Assignee: Kammok Holdings, LLC
    Inventor: Tyler Conlin
  • Patent number: 10254610
    Abstract: A 3T pixel structure is provided. The 3T pixel structure includes: a substrate, on which a lower common electrode and a scan line are positioned; a first dielectric layer, positioned on the lower common electrode, the scan line and the substrate; a charge-sharing thin film transistor (TFT), including a source, a drain, and a gate, the source and the drain of the charge-sharing TFT being positioned on the first dielectric layer; a data line, positioned on the first dielectric layer; a second dielectric layer, positioned on the source, the drain, the data line of the charge-sharing TFT and the first dielectric layer; and an upper common electrode, positioned on the second dielectric layer. The second dielectric layer has a source hole to allow the upper common electric layer to contact the first source and electrically connect to the first source through the source hole.
    Type: Grant
    Filed: June 16, 2016
    Date of Patent: April 9, 2019
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiangwei Jiang
  • Patent number: 10229904
    Abstract: A protective circuit includes a non-linear element which includes a gate electrode, a gate insulating layer covering the gate electrode, a first oxide semiconductor layer overlapping with the gate electrode over the gate insulating layer, a channel protective layer overlapping with a channel formation region of the first oxide semiconductor layer, and a pair of a first wiring layer and a second wiring layer whose end portions overlap with the gate electrode over the channel protective layer and in which a conductive layer and a second oxide semiconductor layer are stacked. Over the gate insulating layer, oxide semiconductor layers with different properties are bonded to each other, whereby stable operation can be performed as compared with Schottky junction. Thus, the junction leakage can be reduced and the characteristics of the non-linear element can be improved.
    Type: Grant
    Filed: April 30, 2015
    Date of Patent: March 12, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Kengo Akimoto, Shigeki Komori, Hideki Uochi, Tomoya Futamura, Takahiro Kasahara
  • Patent number: 10162092
    Abstract: A display panel includes an array substrate, an opposite substrate facing the array substrate, and a liquid crystal layer between the substrates. The array substrate includes a first polarizer, a first insulating layer covering the first metal layer, a gate electrode on the first insulating layer, a gate insulation layer on the gate electrode, a channel layer on the gate insulation layer, source and drain electrodes on the channel layer, a protecting layer covering the source and drain electrodes and including a contact hole exposing the drain electrode, and a first electrode on the protecting layer and electrically connected to the drain electrode through the contact hole. The first polarizer includes a first substrate, a first antistatic layer on the first substrate and including a conductive material, and a first metal layer on the first antistatic layer and including a plurality of protrusions which form a wire grid pattern.
    Type: Grant
    Filed: November 4, 2015
    Date of Patent: December 25, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Gun Choi, Woo-Yong Sung, Tae-Woon Cha
  • Patent number: 10101853
    Abstract: Thin-film transistor circuitry for a display may include conductive layers such as transparent conductive layers and metal layers and may include dielectric layers. The dielectric layers may include buffer layers, interlayer dielectric, gate insulator, and organic planarization layers. The organic planarization layers may be patterned photolithographically to form vias, trenches, and other structures. Trenches may be formed by removing the planarization layer in a strip. When planarization material is removed for forming a trench or other structure, a step is formed in the planarization material. Metal lines such as data lines and other signal lines may cross steps in the planarization material. To prevent shorts between lines, a step may have protrusions that help eliminate metal etch residue. Vias may be reduced in depth by forming metal bumps and dielectric bumps under the vias and by forming other via structures.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: October 16, 2018
    Assignee: Apple Inc.
    Inventors: Yu Cheng Chen, Keitaro Yamashita, Abbas Jamshidi Roudbari, Hirokazu Yamagata, Ting-Kuo Chang
  • Patent number: 10008519
    Abstract: It is an object to decrease the number of transistors connected to a capacitor. In a structure, a capacitor and one transistor are included, one electrode of the capacitor is connected to a wiring, and the other electrode of the capacitor is connected to a gate of the transistor. Since a clock signal is input to the wiring, the clock signal is input to the gate of the transistor through the capacitor. Then, on/off of the transistor is controlled by a signal which synchronizes with the clock signal, so that a period when the transistor is on and a period when the transistor is off are repeated. In this manner, deterioration of the transistor can be suppressed.
    Type: Grant
    Filed: January 18, 2018
    Date of Patent: June 26, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 9941308
    Abstract: It is an object to decrease the number of transistors connected to a capacitor. In a structure, a capacitor and one transistor are included, one electrode of the capacitor is connected to a wiring, and the other electrode of the capacitor is connected to a gate of the transistor. Since a clock signal is input to the wiring, the clock signal is input to the gate of the transistor through the capacitor. Then, on/off of the transistor is controlled by a signal which synchronizes with the clock signal, so that a period when the transistor is on and a period when the transistor is off are repeated. In this manner, deterioration of the transistor can be suppressed.
    Type: Grant
    Filed: May 4, 2016
    Date of Patent: April 10, 2018
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 9921434
    Abstract: A liquid crystal display device includes, a first insulation substrate, a first subpixel electrode disposed on the first insulation substrate, an insulation layer disposed on the first subpixel electrode, a second subpixel electrode disposed on the insulation layer, a liquid crystal layer disposed on the second subpixel electrode, a common electrode disposed on the liquid crystal layer, and a second insulation substrate disposed on the common electrode. In the liquid crystal display device, the second subpixel electrode and the common electrode are spaced apart by a second distance in a second region in which the second subpixel electrode is disposed, the first subpixel electrode and the common electrode are spaced apart by a first distance in a first region in which the first subpixel electrode is disposed, excluding the second region, and the first distance and the second distance are different from each other.
    Type: Grant
    Filed: January 8, 2016
    Date of Patent: March 20, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Hoon Kim, Kyeong Jong Kim, Ki Chul Shin