Interdigited (comb-shaped) Electrodes Patents (Class 349/141)
  • Patent number: 11397358
    Abstract: The present application discloses display substrate having a base substrate; an insulating layer on the base substrate; and an electrode layer on a side of the insulating layer distal to the base substrate and having a plurality of electrode blocks. The insulating layer has a first side distal to the base substrate and a second side opposite to the first side and proximal to the base substrate. Each of the plurality of electrode blocks has a third side distal to the base substrate and a fourth side opposite to the third side and proximal to the base substrate. The first side of the insulating layer in the inter-electrode block region has a first height relative to a surface of the base substrate greater than a second height of the fourth side of an adjacent electrode of the plurality of electrode blocks relative to the surface of the base substrate.
    Type: Grant
    Filed: February 2, 2018
    Date of Patent: July 26, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Feng Zhang, Zhijun Lv, Wenqu Liu, Liwen Dong, Shizheng Zhang, Ning Dang
  • Patent number: 11391978
    Abstract: A detection device is provided and includes a first substrate; a plurality of detection electrodes arranged in a first direction and a second direction intersecting the first direction, and located in a display region; a second substrate facing the first substrate; a first conductive layer provided in a peripheral region located outside the display region in planar view, and including a plurality of wires forming a mesh-like pattern; and a second conductive layer electrically coupled to the first conductive layer, the second substrate being located between the second conductive layer and the first substrate, wherein the first conductive layer is arranged to be part of an electrically connected loop around the display region.
    Type: Grant
    Filed: April 5, 2021
    Date of Patent: July 19, 2022
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Koji Ishizaki
  • Patent number: 11366362
    Abstract: A pixel electrode, an array substrate, and a display device are disclosed. The pixel electrode includes electrode regions and at least one hollow region distributed between the electrode regions. The hollow region includes a main body part and two ending parts located at two ends of the main body part, at least one ending part is an inflated portion having a width, and a width of the main body part is smaller than the width of the inflated portion. By using the present disclosure, the transparence is improved and the contrast and the power consumption are improved accordingly.
    Type: Grant
    Filed: August 22, 2019
    Date of Patent: June 21, 2022
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Shidi Xiao
  • Patent number: 11347107
    Abstract: The present disclosure provides an array substrate and a method for manufacturing the same, and a display device. The array substrate includes a plurality of pixel units arranged in a matrix, each the pixel unit includes a plurality of pixel regions, each pixel region is provided with a display electrode having a slit; a plurality of data lines, each of the data lines includes a plurality of data line segments, any two adjacent data line segments are electrically coupled to each other; in each of the pixel units, each of a part of the pixel regions has a display electrode whose slit is parallel to a data line segment adjacent to this display electrode in the data lines; each of another part of the pixel regions has a display electrode whose slit is non-parallel to a data line segment adjacent to this display electrode in the data lines.
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: May 31, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunping Long, Yong Qiao, Xinyin Wu
  • Patent number: 11341924
    Abstract: It is an object of the present invention to provide a display device in which problems such as an increase of power consumption and increase of a load of when light is emitted are reduced by using a method for realizing pseudo impulsive driving by inserting an dark image, and a driving method thereof. A display device which displays a gray scale by dividing one frame period into a plurality of subframe periods, where one frame period is divided into at least a first subframe period and a second subframe period; and when luminance in the first subframe period to display the maximum gray scale is Lmax1 and luminance in the second subframe period to display the maximum gray scale is Lmax2, (½) Lmax2<Lmax1<( 9/10) Lmax2 is satisfied in the one frame period, is provided.
    Type: Grant
    Filed: July 9, 2020
    Date of Patent: May 24, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasunori Yoshida, Hajime Kimura
  • Patent number: 11333814
    Abstract: A layered body including a polarizer material film that is a product of stretching in one or more directions, and a substrate film provided on the polarizer material film, the substrate film being a product of stretching in one or more directions, wherein a stretching ratio X of the polarizer material film is 1.5 or more and 5.5 or less, a thickness T2 is 20 ?m or less, the thickness T2 being a thickness of the polarizer material film as a result of free end uniaxial stretching of the layered body at a stretching ratio 6.0/X, an angle ?2 formed by a stretching direction of the polarizer material film and a stretching direction of the substrate film is less than 1°, and a stretching ratio Y of the substrate film is smaller than the stretching ratio X of the polarizer material film.
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: May 17, 2022
    Assignee: ZEON CORPORATION
    Inventors: Hiromu Mashima, Takamichi Inomata
  • Patent number: 11327377
    Abstract: A display device includes: a pixel electrode; and a storage electrode line surrounding the pixel electrode. The storage electrode line includes a first horizontal portion at a lower portion of the pixel electrode and extending in a first direction, a second horizontal portion at an upper portion of the pixel electrode and extending in the first direction, a first vertical portion extending toward the second horizontal portion from the first horizontal portion, and a second vertical portion extending toward the first horizontal portion from the second horizontal portion. The first horizontal portion and the second horizontal portion are electrically connected to each other and receive a same voltage, and the first vertical portion is not directly connected to the second horizontal portion, and/or the second vertical portion is not directly connected to the first horizontal portion.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: May 10, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventor: Yoo Mi Ra
  • Patent number: 11296168
    Abstract: The present invention provides a display panel. The display panel includes at least three sub-pixel regions. The sub-pixel regions are arranged along a direction of a scan line. A channel region of each driving TFT in the same sub-pixel region has a same width-to-length ratio. Along a direction from a signal input end to a signal output end of the scan line, the width-to-length ratio of the channel region of each driving TFT of any of the sub-pixel regions is smaller than that of a previous one of the sub-pixel regions.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: April 5, 2022
    Inventors: Kuo Gao, Baixiang Han
  • Patent number: 11282910
    Abstract: The present disclosure provides an array substrate, a manufacturing method thereof, and a display device. The array substrate includes: a base substrate, a gate on the base substrate, a conductive wire above the base substrate, a first insulating layer on the gate and the base substrate, and a shielding structure on the base substrate. A first orthographic projection of the conductive wire on the base substrate is spaced apart from a second orthographic projection of the gate on the base substrate. A third orthographic projection of the shielding structure on the base substrate is located between the first orthographic projection and the second orthographic projection. The shielding structure is used to at least partially shield a crosstalk of the conductive wire to the gate.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: March 22, 2022
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Li Wang, Libin Liu
  • Patent number: 11281040
    Abstract: A display device is provided and includes first substrate; gate lines extending on first substrate; data lines extending in a direction crossing gate lines; first electrode on first substrate; insulating film on first electrode; second electrode on insulating film, facing first electrode and including connection electrode arranged in parallel with data lines and comb electrodes arranged in parallel with gate lines and slits arranged between comb electrodes; second substrate facing first substrate; liquid crystal layer provided between first and second substrates; and light shielding portion extending along extending direction of gate lines, wherein comb electrodes connected to connection electrode, length of each of slits in extending direction is longer than width of slits in direction orthogonal to extending direction, and in plan view, one of comb electrodes overlaps with light shielding portion.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: March 22, 2022
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Patent number: 11281060
    Abstract: According to one embodiment, a display device includes a first common electrode, a second common electrode spaced apart from the first common electrode, a first signal line overlapping the first common electrode and the second common electrode, a first metal line overlapping the first signal line and the first common electrode, and a second metal line overlapping the first signal line and the second common electrode and spaced apart from the first metal line. The first metal line includes an extension portion extending between the first common electrode and the second common electrode.
    Type: Grant
    Filed: July 2, 2020
    Date of Patent: March 22, 2022
    Assignee: Japan Display Inc.
    Inventor: Masateru Morimoto
  • Patent number: 11256147
    Abstract: An array substrate and a display panel are provided. Each of sub-pixels is provided with a plurality of display domains. A first electrode retaining wall and a second electrode retaining wall are respectively disposed on both sides of the display domain, and the first electrode retaining wall is electrically connected to pixel electrodes. The second electrode retaining wall is electrically connected to common electrodes, and a horizontal electric field is generated between the first electrode retaining wall and the second electrode retaining wall, such that liquid crystal units in the display domain are aligned horizontally, thereby improving transmittance of the sub-pixels.
    Type: Grant
    Filed: November 8, 2019
    Date of Patent: February 22, 2022
    Inventor: Jiangchuan Chen
  • Patent number: 11256152
    Abstract: A liquid crystal display device includes: a plurality of scan lines and signal lines on one of a pair of substrates arranged to be opposed to each other with a liquid crystal layer sandwiched therebetween, the scan lines and signal lines extending in different directions; and an orientation film, pixel electrode, insulating layer and common electrode, the orientation film being rubbed in a rubbing direction having a given inclination with respect to a pixel arrangement direction. The pixel electrode is partitioned by the scan lines and signal lines and has subpixels made up of first and second regions. The first region has a plurality of slit-shaped openings having a given inclination in a first direction with respect to the rubbing direction. The second region has a plurality of slit-shaped openings having a given inclination in a second direction with respect to the rubbing direction.
    Type: Grant
    Filed: November 11, 2020
    Date of Patent: February 22, 2022
    Assignee: Japan Display Inc.
    Inventors: Daisuke Ito, Hideyuki Omori
  • Patent number: 11231624
    Abstract: A pixel structure, a display panel and a display device are provided. The pixel structure includes a first electrode layer and a second electrode layer. The first electrode layer includes a first plate-shaped electrode and first strip-shaped electrodes; the first strip-shaped electrodes include at least two first strip-shaped structures, and each adjacent two of the first strip-shaped structures have a first slit formed therebetween; the second electrode layer includes a second plate-shaped electrode and second strip-shaped electrodes, wherein the second strip-shaped electrodes include at least two second strip-shaped structures, and each adjacent two of the second strip-shaped structures have a second slit formed therebetween.
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: January 25, 2022
    Assignee: HKC CORPORATION LIMITED
    Inventor: Huai Liang He
  • Patent number: 11226520
    Abstract: A display substrate includes: a plurality of sub-pixel regions at a first base substrate, each of the plurality of sub-pixel regions including a light-blocking region and aperture regions located at opposing sides of the light-blocking region; and a first transparent electrode and a second transparent electrode within each of the plurality of sub-pixel regions, configured to drive a liquid crystal layer; wherein the first transparent electrode includes a first electrode unit located inside the light-blocking region and including a plurality of first sub-electrodes, wherein each of the plurality of first sub-electrodes are separated from two adjacent first sub-electrodes by a separation distance; and wherein the separation distance between two adjacent first sub-electrodes nearest to a center line of the light-blocking region is smaller than the separation distance between two adjacent first sub-electrodes nearest to an edge of the light-blocking region.
    Type: Grant
    Filed: May 15, 2019
    Date of Patent: January 18, 2022
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Detao Zhao, Li Xiao, Lei Wang, Dongni Liu, Liang Chen, Jifeng Tan, Minghua Xuan, Xiaochuan Chen
  • Patent number: 11226529
    Abstract: A liquid crystal display device includes an active matrix substrate, a counter substrate, and a liquid crystal layer. The active matrix substrate includes a top gate type oxide semiconductor TFT a plurality of gate wiring lines a plurality of source and an interlayer insulating layer The counter substrate includes a plurality of columnar spacers provided on a second substrate. Each columnar spacer is disposed in an intersecting region where the gate wiring line and the source wiring line intersect. A front face of the active matrix substrate on the liquid crystal layer side includes a plurality of first ridges overlapping the plurality of gate wiring lines and a plurality of second ridges overlapping the plurality of source wiring lines.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: January 18, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Keisuke Yoshida, Kohhei Tanaka
  • Patent number: 11221521
    Abstract: Provided is a display device including an array substrate, a pixel, a dimming element, and a counter substrate. The pixel is located over the array substrate and includes a first electrode, a second electrode, and a liquid crystal layer over the first electrode and the second electrode. The dimming element is located over the array substrate and includes a third electrode, the liquid crystal layer over the third electrode, and a fourth electrode over the liquid crystal layer. The counter substrate is located over the fourth electrode.
    Type: Grant
    Filed: March 13, 2020
    Date of Patent: January 11, 2022
    Assignee: Japan Display Inc.
    Inventors: Shigesumi Araki, Toshiharu Matsushima, Shinichi Komura
  • Patent number: 11215891
    Abstract: An active matrix substrate includes: a substrate; lower bus lines and upper bus lines; a lower insulating layer positioned between the lower bus lines and the upper bus lines; an oxide semiconductor TFT that are disposed in each pixel region and have an oxide semiconductor layer disposed on the lower insulating layer; pixel electrodes disposed in each pixel region; and wiring connection units arranged in a non-display region. Each wiring connection unit includes: a lower conductive layer formed using the same conductive film as the lower bus lines; an insulating layer that extends on the lower conductive layer and includes the lower insulating layer. The lower bus lines and the lower conductive layer have a first laminated structure including a metal layer and a transparent conductive layer that covers an upper surface and a side surface of the metal layer.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: January 4, 2022
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Hideki Kitagawa, Yoshihito Hara, Masaki Maeda, Yoshiharu Hirata, Tatsuya Kawasaki, Teruyuki Ueda, Hajime Imai, Tohru Daitoh
  • Patent number: 11204531
    Abstract: The present disclosure provides an array substrate and a display panel, where the array substrate includes: a plurality of pixel structures, each of the pixel structures comprises at least one pixel region, wherein a signal wire is provided at a side of the pixel region, and a pixel electrode is provided in the pixel region, a shield electrode being in a same layer as the pixel electrode is provided at a side of the pixel electrode proximal to the signal wire, and the shield electrode is electrically coupled to a common electrode line. The technical solution of the present disclosure can improve the chaos in electric field at the edge of the area of the pixel region between the pixel electrode and the signal wire, and it is beneficial to reduce light leakage and increase the aperture ratio.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: December 21, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunping Long, Yong Qiao, Xinyin Wu
  • Patent number: 11187943
    Abstract: The present application discloses a fringe field driven liquid crystal display panel. The fringe field driven liquid crystal display panel includes a first substrate having a first glass layer and a first alignment film on the first glass layer; a second substrate facing the first substrate and having a second glass layer and a second alignment film on the second glass layer; and a liquid crystal layer between the first alignment film and the second alignment film. A first main optical axis of the first glass layer and a second main optical axis of the second glass layer are non-parallel to each other and have an included angle ?. The first alignment film and the second alignment film have non-parallel rubbing angles, configured to reduce light leakage and color shift in the fringe field driven liquid crystal display panel.
    Type: Grant
    Filed: June 15, 2017
    Date of Patent: November 30, 2021
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jaegeon You, Xinxing Wang
  • Patent number: 11175542
    Abstract: A liquid crystal display device is provided, which includes a thin film transistor including an oxide semiconductor layer, a first electrode layer, a second electrode layer having an opening, a light-transmitting chromatic-color resin layer between the thin film transistor and the second electrode layer, and a liquid crystal layer. One of the first electrode layer and the second electrode layer is a pixel electrode layer which is electrically connected to the thin film transistor, and the other of the first electrode layer and the second electrode layer is a common electrode layer. The light-transmitting chromatic-color resin layer is overlapped with the pixel electrode layer and the oxide semiconductor layer of the thin film transistor.
    Type: Grant
    Filed: November 12, 2020
    Date of Patent: November 16, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Tetsuji Ishitani, Daisuke Kubota
  • Patent number: 11170725
    Abstract: A display device includes: a plurality of pixel electrodes having a long shape and arranged at least in a long side direction of the plurality of pixel electrodes; a common electrode overlapping the plurality of pixel electrodes with an insulating film interposed therebetween; an image wiring line extending in a short side direction of the plurality of pixel electrodes, arranged such that two of the image wiring lines are sandwiched between two pixel electrodes of the plurality of pixel electrodes, and supplying an image signal to each of the two pixel electrodes; and a common wiring line extending in the short side direction, arranged to sandwich one of the plurality of pixel electrodes together with the image wiring line in the long side direction, connected to the common electrode, and including a portion formed of a portion of the same conductive film as the image wiring line.
    Type: Grant
    Filed: April 16, 2020
    Date of Patent: November 9, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masahiro Yoshida
  • Patent number: 11163198
    Abstract: A pixel structure includes a switch element on a substrate, a first electrode, and a second electrode. The first electrode includes first to third trunk portions and first to fourth branch portions. The third trunk portion is located between the first and second trunk portions. The first branch portions are connected to the first trunk portion. The second and third branch portions are connected to the third trunk portion. The fourth branch portions are connected to the second trunk portion. The second electrode includes fourth and fifth trunk portions and the fifth to eighth branch portions. The fourth trunk portion overlaps a gap between the first and second branch portions. The fifth trunk portion overlaps a gap between the third and fourth branch portions. The fifth and sixth branch portions are connected to the fourth trunk portion. The seventh and eighth branch portions are connected to the fifth trunk portion.
    Type: Grant
    Filed: May 21, 2020
    Date of Patent: November 2, 2021
    Assignee: Au Optronics Corporation
    Inventors: Wei-Ming Cheng, Min-Hsuan Chiu, Chien-Hsien Wu, Syuan-Ling Yang, Seok-Lyul Lee
  • Patent number: 11164928
    Abstract: Provided is a flexible organic electroluminescent device and a method for fabricating the same. In the flexible electroluminescent device, line hole patterns are formed on surfaces of a plurality of inorganic layers positioned in a pad region in which a flexible printed circuit board is connected to prevent a path of cracks caused by repeated bending and spreading of the organic electroluminescent device from spreading to the interior of the device.
    Type: Grant
    Filed: December 10, 2019
    Date of Patent: November 2, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Su Ho Kim, Sang Bae Kim, Jun Tae Jeon, Yong Sam Lee
  • Patent number: 11163199
    Abstract: According to an aspect, a liquid-crystal display device includes a first substrate, a second substrate, and a liquid-crystal layer. The first substrate includes a first electrode and a second electrode, and one of the first electrode and the second electrode is a pixel electrode provide, the first electrode includes an electrode base portion extending in a first direction and comb tooth portions extending in a second direction and protruding in a comb teeth shape from the electrode base portion with a predetermined distance interposed therebetween, and adjacent comb tooth portions include adjacent comb tooth portions having a relation in which a first long side of one comb tooth portion closest to a boundary between pixels is not parallel to a first long side of the other comb tooth portion.
    Type: Grant
    Filed: June 18, 2020
    Date of Patent: November 2, 2021
    Assignee: Japan Display Inc.
    Inventor: Toshiharu Matsushima
  • Patent number: 11156876
    Abstract: A curved display device including a display substrate, an opposite substrate, a liquid crystal layer, a pixel electrode, a common electrode, and a light blocking layer. The display substrate includes pixel areas included in a display area, and is curved along a first direction. The opposite substrate faces the display substrate and is coupled to the display substrate to be curved together with the display substrate. Domains are defined in each pixel area and arranged in a second direction crossing the first direction. Liquid crystal molecules in a first set of two domains, which are sequentially arranged and disposed adjacent to the light blocking layer, are aligned toward a first side of the display area, and liquid crystal molecules in a second set of two domains facing the first set of two domains are aligned toward the second side of the display area.
    Type: Grant
    Filed: June 24, 2019
    Date of Patent: October 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jeongman Son, Minwook Park, JinYoung Lee
  • Patent number: 11152600
    Abstract: An organic light-emitting diode (OLED) display panel and a manufacture method thereof are provided, which can enable the organic material encapsulated inside to have the function of removing water and oxygen, thereby further ensuring a reliable lifespan of the OLED display panel.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: October 19, 2021
    Assignee: Wuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventors: Yamei Bai, Jinchang Huang, Yu Gu, Jiajia Luo, Lin Yang, Xianjie Li
  • Patent number: 11150529
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, a dual passivation layer disposed between the first substrate and the second substrate. The dual passivation layer includes a first passivation layer and a second passivation layer. A refractive index of the first passivation layer is different from a refractive index of the second passivation layer.
    Type: Grant
    Filed: June 7, 2019
    Date of Patent: October 19, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jang-Kun Song, Yeon-Sik Ham, Kang-Woo Kim, Yeon-Mun Jeon, Jeong Hyun Lee
  • Patent number: 11139317
    Abstract: An array substrate, a touch panel and a manufacturing method of an array substrate are provided. The array substrate includes a base substrate and a plurality of gate lines, a plurality of data lines, a common electrode layer and a plurality of pixel units arranged in an array disposed on the base substrate. Each of the pixel units includes a plurality of sub-pixel units defined by gate lines and data lines disposed to intersect each other laterally and vertically. The common electrode layer includes a plurality of common electrode blocks that double as self-capacitance electrodes, each of the common electrode blocks is connected with at least one wire, and the wires are in the middle of sub-pixel units of a same column. The array substrate is configured to increase aperture ratio of pixel units.
    Type: Grant
    Filed: June 17, 2015
    Date of Patent: October 5, 2021
    Assignees: BOE Technology Group Co., Ltd., Beijing BOE Optoelectronics Technology Co., Ltd.
    Inventors: Haisheng Wang, Xue Dong, Hailin Xue, Xi Chen, Yingming Liu, Xiaoliang Ding, Weijie Zhao, Shengji Yang, Hongjuan Liu, Changfeng Li, Wei Liu
  • Patent number: 11131891
    Abstract: The present invention provides a liquid crystal display device of a transverse electric field mode that may inhibit internal reflection and realize proper black display to which coloring does not occur. The present invention provides a liquid crystal display device including a first linear polarizer, a first ?/4 retardation layer, a first substrate, a second ?/4 retardation layer configured with a different material from the first ?/4 retardation layer, a liquid crystal layer that contains liquid crystals which are horizontally aligned in a case where no voltage is applied, plural electrode pairs that generate a transverse electric field in the liquid crystal layer by a voltage being applied, a second substrate, a second linear polarizer, and a backlight. In a case where a color of light emitted from the backlight is expressed by using chromaticity coordinates (x, y) of an XYZ color system, both of x and y are 0.32 or greater.
    Type: Grant
    Filed: July 6, 2018
    Date of Patent: September 28, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Akira Sakai, Yuichi Kawahira, Koji Murata, Masahiro Hasegawa, Takako Koide, Kozo Nakamura, Kiyoshi Minoura
  • Patent number: 11119366
    Abstract: A liquid crystal display device includes a first substrate, a pixel electrode which is disposed on the first substrate and comprises a first sub-pixel electrode and a second sub-pixel electrode adjacent to the first sub-pixel electrode along a first direction, and a shielding electrode which is disposed on the same layer as the pixel electrode and comprises a first area having a first width and a second area having a second width which is smaller than the first width along a second direction which crosses the first direction, and the first sub-pixel electrode may be adjacent to the first area along the second direction, and the second sub-pixel electrode may be adjacent to the second area along the second direction.
    Type: Grant
    Filed: June 25, 2020
    Date of Patent: September 14, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ho Kil Oh, Hoon Kim, Ki Chul Shin
  • Patent number: 11114500
    Abstract: A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located around the display area; a circuit element layer including a circuit element in each of the pixel areas and a reference voltage wiring in the non-display area, the reference voltage wiring being electrically coupled to the circuit element; and a display element layer including a first pixel electrode on the circuit element layer in each of the pixel areas, a second pixel electrode located opposite to the first pixel electrode, a plurality of light emitting elements between the first pixel electrode and the second pixel electrode, and a first wiring on the circuit element layer in the non-display area, wherein the first wiring is directly coupled to the reference voltage wiring in the non-display area.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: September 7, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Jun Lee, Hyo Chul Lee
  • Patent number: 11106096
    Abstract: By increasing an interval between electrodes which drives liquid crystals, a gradient of an electric field applied between the electrodes can be controlled and an optimal electric field can be applied between the electrodes. The invention includes a first electrode formed over a substrate, an insulating film formed over the substrate and the first electrode, a thin film transistor including a semiconductor film in which a source, a channel region, and a drain are formed over the insulating film, a second electrode located over the semiconductor film and the first electrode and including first opening patterns, and liquid crystals provided over the second electrode.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: August 31, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Hajime Kimura
  • Patent number: 11099681
    Abstract: A touch-sensitive control element for a vehicle interior comprises a partially transparent decorative part, a functional part and a light source, wherein the functional part is arranged between the decorative part and the light source and comprises a layer of several conductors. The functional part comprises at least one first region and at least one second region, wherein the light transmittance of said at least one second region is less than the light transmittance of said at least one first region.
    Type: Grant
    Filed: March 13, 2019
    Date of Patent: August 24, 2021
    Assignee: BCS AUTOMOTIVE INTERFACE SOLUTIONS GMBH
    Inventor: Harald Koehnlein
  • Patent number: 11079527
    Abstract: A display device including a housing including sidewalls and mounting surfaces at upper ends of the sidewalls; a display panel housed in the housing; and a cover window on the display panel, wherein the cover window includes an upper surface that faces outwardly in a direction in which light is emitted, a lower surface opposite to the upper surface, the lower surface being narrower than the upper surface, and side surfaces that slope inwardly from ends of the upper surface to ends of the lower surface, the side surfaces being at least partially bent, and wherein the side surfaces of the cover window are mounted on the mounting surfaces of the housing.
    Type: Grant
    Filed: April 3, 2019
    Date of Patent: August 3, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Seop Kim, Soon Sung Park
  • Patent number: 11073734
    Abstract: An array substrate includes: a base substrate, a gate line extending in a first direction, a data line extending in a second direction, and a pixel electrode layer, the first direction being substantially perpendicular to the second direction, the gate line and the data line defining a plurality of sub-pixel units, and a plurality of first and second common electrode lines electrically connected to each other and disposed in the same layer as the gate lines. The first common electrode line includes two first common electrode line first portions, and the second common electrode line extends in the second direction. The second common electrode line is located between and electrically connects the two first common electrode line first portions. The second common electrode line is located at a center line of the sub-pixel unit.
    Type: Grant
    Filed: June 4, 2020
    Date of Patent: July 27, 2021
    Assignees: CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Zhicai Xu, Ruilin Bi, Jiandong Guo, Zhulin Liu, Shouqiang Zhang, Kui Zhang
  • Patent number: 11067736
    Abstract: A directional privacy display may include a waveguide; and an array of light sources and spatial light modulator that operate in a time sequential manner. The waveguide may include light extraction features arranged to direct light from an array of light sources by total internal reflection to an array of viewing windows and a reflector arranged to direct light from the waveguide by transmission through extraction features of the waveguide to the same array of viewing windows. First and second phases may be temporally multiplexed with respective primary and secondary images and primary and secondary angular illumination distributions. An efficient and bright privacy display may be provided with obscured primary image visibility for off-axis observers.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: July 20, 2021
    Assignee: RealD Spark, LLC
    Inventors: Michael G Robinson, Graham J. Woodgate, Jonathan Harrold
  • Patent number: 11048135
    Abstract: It is an object of the present invention to apply a sufficient electrical field to a liquid crystal material in a horizontal electrical field liquid crystal display device typified by an FFS type. In a horizontal electrical field liquid crystal display, an electrical field is applied to a liquid crystal material right above a common electrode and a pixel electrode using plural pairs of electrodes rather than one pair of electrodes. One pair of electrodes includes a comb-shaped common electrode and a comb-shaped pixel electrode. Another pair of electrodes includes a common electrode provided in a pixel portion and the comb-shaped pixel electrode.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: June 29, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Hajime Kimura, Hideki Uochi
  • Patent number: 11042068
    Abstract: A display substrate and a manufacturing method thereof, and a display device are provided. The display substrate includes a base substrate, a plurality of pixel groups located on the base substrate and a first shading portion located between the plurality of pixel groups and the base substrate. Each of the plurality of pixel groups includes two pixel units, each of the plurality of pixel groups includes two opaque first common electrode strips and a second common electrode strip located between the two opaque first common electrode strips, an orthogonal projection of a space between the two opaque first common electrode strips on the base substrate falls within an orthogonal projection of the first shading portion on the base substrate.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: June 22, 2021
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhicai Xu, Wu Wang, Xiaoyuan Wang, Kui Zhang
  • Patent number: 11011725
    Abstract: A display panel and a mask plate are provided. The display panel includes a base substrate, a thin film transistor substrate disposed on the base substrate, a light-emitting layer disposed on the thin film transistor substrate, a cathode layer disposed on the light-emitting layer, a covering layer and a protective layer laminated on the cathode layer, and an encapsulation layer disposed on the protective layer. Wherein, the cathode layer is provided with a through hole penetrating the cathode layer, and the through hole is filled with a transparent layer.
    Type: Grant
    Filed: August 28, 2019
    Date of Patent: May 18, 2021
    Inventor: Jiajia Sun
  • Patent number: 10996523
    Abstract: A display device is provided. The display device includes a display module and an antenna coil. The display panel has a first substrate, a second substrate, a common electrode layer, a TFT layer and a light modulating layer. The common electrode layer is disposed between the first substrate and the second substrate. The antenna coil is disposed on the side of the first substrate or the second substrate facing away from the light modulating layer. The orthogonal projection of the antenna coil on the light common electrode defines a contour of the antenna coil, wherein the common electrode layer is discontinuous along at least one part of the contour.
    Type: Grant
    Filed: February 20, 2020
    Date of Patent: May 4, 2021
    Assignee: AU OPTRONICS CORPORATION
    Inventors: Chia-Hua Hu, Chi-Hung Lu
  • Patent number: 10989965
    Abstract: A liquid crystal display device includes a TFT substrate and a counter substrate and a liquid crystal layer sandwiched therebetween. A scanning line, a video signal line, a thin film transistor connected to the scanning line and the video signal line, a pixel electrode connected to the thin film transistor, and a counter electrode are formed on the TFT substrate, and a columnar spacer formed on the counter substrate. The pixel and counter electrodes are transparent, and the liquid crystal layer is controlled by an electric field generated between the pixel and counter electrodes. The counter electrode contacts with a metal line having a first part which is extended in parallel with the scanning line and a second part which is extended in parallel with the video signal line, a width of the first part of the metal line being narrower than a width of the scanning line.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: April 27, 2021
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Hidehiro Sonoda, Chikae Matsui, Noboru Kunimatsu
  • Patent number: 10983401
    Abstract: A display panel includes a first substrate, a second substrate opposite to the first substrate, and a liquid crystal layer positioned between the first substrate and the second substrate. The first substrate includes a first base plate, plural scan lines and plural data lines formed on the first base plate and intersected each other, wherein two adjacent scan lines and two adjacent data lines define a pixels region. Each pixel region includes a first transparent conductive layer formed above the first base plate, an insulating layer formed on the first transparent conductive layer, and a second transparent conductive layer formed on the insulating layer. The second substrate includes a second base plate and a third transparent conductive layer formed on the second base plate.
    Type: Grant
    Filed: October 9, 2018
    Date of Patent: April 20, 2021
    Assignee: INNOLUX CORPORATION
    Inventors: Hsin-Yu Lee, Ching-Che Yang, Chen-Kuan Kao
  • Patent number: 10983558
    Abstract: A display device includes a display panel, a cover glass disposed on the display panel, and a biometric sensor device disposed below the display panel. The biometric sensor device includes a printed circuit board, a biometric sensor disposed on the printed circuit board, and a housing disposed on the printed circuit board and in which an opening is formed. The biometric sensor is disposed in the opening of the housing and is attached to a surface of the display panel through the housing.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: April 20, 2021
    Assignee: Samsung Electronics Co., Inc.
    Inventors: Hyun Woo Kim, Ji Hoon Park, Ji Hun Heo, Joo Han Kim, Jin Man Kim, Bong Jae Rhee, Se Young Jang
  • Patent number: 10976621
    Abstract: A display device is disclosed, which includes: a first substrate; a plurality of scan lines and a plurality of data lines, wherein the plurality of scan lines intersects with the plurality of data lines, the plurality of scan lines and the plurality of data lines are disposed above the first substrate, and the plurality of scan lines extend along a first direction; a common electrode disposed above the first substrate, wherein the common electrode has a first part extending along the first direction, a second part substantially parallels to the one of the plurality of data lines, and the first part connects to the second part.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: April 13, 2021
    Inventors: Chien-Hung Chen, Bo-Chin Tsuei, Hsia-Ching Chu, Mei-Chun Shih
  • Patent number: 10976626
    Abstract: A display device includes: an active matrix substrate including a plurality of pixels arrayed in a matrix shape, wherein the active matrix substrate includes, in each of the plurality of pixels, a TFT, an insulating layer substantially covering the TFT, a pixel electrode formed of a transparent conductive material and electrically connected to the TFT, a color filter located between the TFT and the pixel electrode, and an intermediate layer electrode formed of a transparent conductive material, at least partially located between the insulating layer and the color filter, and electrically connecting a drain electrode of the TFT to the pixel electrode, the pixel electrode is connected to the intermediate layer electrode at a contact hole formed in the color filter, and when viewed in a normal direction of a display surface, the contact hole at least partially overlaps a gate electrode of the TFT.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: April 13, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Kuniaki Okada, Keisuke Yoshida
  • Patent number: 10969527
    Abstract: A polarizing plate with retardation layers of the present invention includes a polarizer, a first retardation layer, and a second retardation layer in the staled order. The polarizer and the lust retardation layer are bonded to each other via a first adhesive layer, the first retardation layer and the second retardation layer are bonded to each other via a second adhesive layer, the first retardation layer and the second retardation layer each have a thickness of 5 ?m or less, and the second adhesive layer has an average refractive index of 1.55 or more, and a difference between the average refractive index of the second adhesive layer and an average refractive index of the first retardation layer, and a difference between the average refractive index of the second adhesive layer and an average refractive index of the second retardation layer are each less than 0.08.
    Type: Grant
    Filed: July 21, 2017
    Date of Patent: April 6, 2021
    Assignee: NITTO DENKO CORPORATION
    Inventors: Yuki Hasegawa, Ayaka Umemoto, Kentarou Takeda
  • Patent number: 10969885
    Abstract: An array substrate, a manufacturing method therefor, and a touch display panel are provided. The array substrate includes: a touch electrode, located on a base substrate and extending along a first direction; a pixel electrode, located on the base substrate, insulated from the touch electrode and including opposing outer edges, the outer edges being sequentially arranged along a second direction. In the second direction, the orthographic projection of the touch electrode on the base substrate is located between the orthographic projections of the outer edges of the pixel electrode on the base substrate. The array substrate prevents or reduces differences between coupling capacitances between the pixel electrode and signal lines on two sides thereof.
    Type: Grant
    Filed: August 3, 2018
    Date of Patent: April 6, 2021
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD. &, BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaona Liu, Yuqiong Chen, Mengjie Wang, Shuai Yuan, Chenchen Wu, Ning Li, Ziyi Zheng
  • Patent number: 10948787
    Abstract: A liquid crystal display device of the present invention includes, in the given order: a first substrate; a liquid crystal layer containing liquid crystal molecules; and a second substrate. The first substrate includes a first electrode, a second electrode closer to the liquid crystal layer than the first electrode is, and an insulating film between the first electrode and the second electrode. The second electrode is provided with openings including a first opening and a second opening adjacent to each other. The first opening and the second opening are independent of each other and are point-symmetrical to each other. The first opening and the second opening each have a shape including: curved portions that expand an opening periphery outward at the respective ends in the longitudinal direction; and paired protruding portions that allow the opening periphery to protrude partially in the lateral direction in the middle of the longitudinal direction.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: March 16, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Mitsuhiro Murata, Yosuke Iwata, Takuma Tomotoshi
  • Patent number: 10948766
    Abstract: Provided are a light source-side polarizing plate including primer layers having different refractive indexes for a liquid crystal display device, and a liquid crystal display device comprising the same, the polarizing plate comprising a polarizer and a protective film formed on a light incidence surface of the polarizer, wherein the protective film includes a first primer layer, a protective film substrate, and a second primer layer, which are sequentially laminated on the polarizer, and when a refractive index of the second primer layer is np2, a refractive index of the first primer layer is np1, and refractive indexes of the protective film substrate in x-axis and y-axis directions are nx and ny, each of the first primer layer and the second primer layer has a thickness of 60 nm to 120 nm, the refractive index difference np1?np2 of the first primer layer and the second primer layer is larger than 0 and equal to or smaller than 0.
    Type: Grant
    Filed: September 18, 2017
    Date of Patent: March 16, 2021
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Seok Jin Park