Insulating Layer Patents (Class 349/138)
  • Patent number: 12243500
    Abstract: An array substrate has a display area and a bonding region. The display area includes a distal region, a proximal region, and a middle region therebetween. The array substrate includes a base, a common electrode located in the display area, a connecting lead disposed outside the distal region, a conductive frame at least partially surrounding the display area, and at least one first common signal line, at least one second common signal line and at least one third common signal line. The first common signal line, the second common signal line and the third common signal line are respectively coupled to portions of the common electrode located in the distal region, the proximal region and the middle region. The first common signal line is coupled to the connecting lead. The connecting lead and the portion of the common electrode located in the distal region are coupled to the conductive frame.
    Type: Grant
    Filed: April 4, 2024
    Date of Patent: March 4, 2025
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiao Wang, Yan Yan, Yu Ma
  • Patent number: 12228826
    Abstract: The present disclosure relates to the field of display technology, in particular, to an array substrate and a display device. The array substrate includes: a first substrate; a transistor, formed on the first substrate; an organic insulation layer, formed on the first substrate and covering the transistor; a spacer, formed on a side of the organic insulation layer away from the first substrate, where an orthographic projection of the spacer on the first substrate at least partially overlaps with an orthographic projection of the transistor on the first substrate.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: February 18, 2025
    Assignees: WUHAN BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jingang Liu, Yuanhui Guo, Xia Shi, Peng Jiang, Yanping Liao
  • Patent number: 12225758
    Abstract: A display device includes: a resin layer on the circuit layer including a groove surrounding and separating a display area; light-emitting elements on an upper surface of the resin layer so as to emit light with luminances controlled by the currents; a sealing layer covering the light-emitting elements; a second substrate above the sealing layer; a sealing material provided between the sealing layer and the second substrate so as to surround the display area and the groove; and a filling layer surrounded by the sealing material between the sealing layer and the second substrate. The groove is formed along a line describing a shape that is inscribed in a rectangle and not in contact with corners of the rectangle as viewed in a direction vertical to the upper surface of the resin layer.
    Type: Grant
    Filed: October 12, 2023
    Date of Patent: February 11, 2025
    Assignee: Japan Display Inc.
    Inventors: Takayasu Suzuki, Toshihiro Sato
  • Patent number: 12197102
    Abstract: Disclosed are a liquid crystal lens component and a driving method therefor, and a display device. The method includes: applying a common voltage signal to a second electrode; and applying a driving signal to a first electrode, which includes: in two image frames that are adjacent to each other, applying driving signals with opposite polarities to the first electrode in one liquid crystal lens unit; in one image frame, applying driving signals with the same polarity to the plurality of first sub-electrodes in a same first electrode group, applying driving signals with the same polarity to the plurality of first sub-electrodes in a same second electrode group, applying positive voltage driving signals to partial first sub-electrodes of all first sub-electrodes in the liquid crystal lens component, and applying negative voltage driving signal to the remaining first sub-electrodes of all the first sub-electrodes in the liquid crystal lens component.
    Type: Grant
    Filed: November 29, 2021
    Date of Patent: January 14, 2025
    Assignee: BOE Technology Group Co., Ltd.
    Inventors: Zhongxiao Li, Weili Zhao, Jing Yu
  • Patent number: 12178025
    Abstract: A display apparatus includes a display panel configured to display an image from one surface of the display panel; a first rigid member disposed at another surface of the display panel; a first adhesive layer disposed at an upper portion of the first rigid member; a first heat-dissipation layer disposed at an upper portion of the first adhesive layer; and an extension part extending from the first heat-dissipation layer and covering a lateral surface of the display panel.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: December 24, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Junjae Lee, Chanhyeok Park, Suchan Kwon
  • Patent number: 12169336
    Abstract: According to an aspect, an optical element includes: a first substrate including a first electrode; a second substrate stacked on the first substrate and including a second electrode; a liquid crystal layer provided between the first substrate and the second substrate; a sealing member extending along an outer periphery of the liquid crystal layer; a first spacer provided on an inner side of the sealing member; and a conductive column provided on an outer side of the sealing member and electrically connecting the first electrode and the second electrode. The conductive column and the first spacer include the same material.
    Type: Grant
    Filed: April 7, 2023
    Date of Patent: December 17, 2024
    Assignee: Japan Display Inc.
    Inventors: Takeo Koito, Kojiro Ikeda, Tae Kurokawa
  • Patent number: 12153312
    Abstract: The present invention provides an array substrate and a liquid crystal display. The liquid crystal display panel provided by the embodiment of the present application comprises an array substrate. The array substrate reduces the pretilt angle conflict between two adjacent areas by canceling the main electrode of the buffer area, or setting projection part on the array substrate after canceling the main electrode of the buffer area, adding DBS electrodes, etc. This prevents the problem of mutual obstruction of liquid crystal molecules when deflecting, thereby improving dark mass and solving the problem of uneven display.
    Type: Grant
    Filed: September 7, 2021
    Date of Patent: November 26, 2024
    Assignees: HUZHOU CHINA STAR OPTOELECTRONICS DISPLAY CO., LTD., TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yanan Wang
  • Patent number: 12105918
    Abstract: Provided is a display device including a display panel having a plurality of pixel regions, a first insulating layer on the display panel, having a first refractive index, and having a plurality of first openings defined in regions which overlap the plurality of pixel regions, a second insulating layer directly on the first insulating layer and having a plurality of second openings defined in regions which correspond to the plurality of first openings, and a third insulating layer covering the display panel, the first insulating layer, and the second insulating layer and having a second refractive index higher than the first refractive index, wherein the third insulating layer may overlap the plurality of pixel regions on a plane.
    Type: Grant
    Filed: February 10, 2023
    Date of Patent: October 1, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jungha Son, Gee-Bum Kim, Sangwoo Kim, Kijune Lee, Taekyung Ahn, Byung Han Yoo, Jaeik Lim, Chaungi Choi
  • Patent number: 12092932
    Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.
    Type: Grant
    Filed: January 10, 2024
    Date of Patent: September 17, 2024
    Assignee: Japan Display Inc.
    Inventors: Yasushi Tomioka, Yosuke Hyodo, Hidehiro Sonoda, Noboru Kunimatsu
  • Patent number: 12078885
    Abstract: A display device may include a display panel including an active area displaying an image and a peripheral area surrounding the active area, pad parts disposed on a side surface of the display panel, a light blocking layer disposed on a portion of the peripheral area adjacent to the side surface of the display panel, and circuit units electrically connected to the pad parts.
    Type: Grant
    Filed: December 30, 2022
    Date of Patent: September 3, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myong-Soo Oh, Minsung Kim, Heejong Shin, Juno Song
  • Patent number: 12069922
    Abstract: The present disclosure relates to a display device. The display device according to an exemplary embodiment of the present disclosure includes a substrate including an active area including a plurality of sub-pixels and a non-active area surrounding the active area; a plurality of transistors disposed in the plurality of sub-pixels, respectively; a plurality of first power supply lines connected to the plurality of sub-pixels; and a plurality of second power supply lines disposed to intersect the plurality of first power supply lines and made of the same material as gate electrodes of the plurality of transistors. Therefore, it is possible to improve the luminance of the display device and suppress the occurrence of mura.
    Type: Grant
    Filed: June 14, 2023
    Date of Patent: August 20, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: JeHyung Park, Sangjin Kim
  • Patent number: 12059703
    Abstract: A method is provided for coating a surface of a material with a film of porous coordination polymer. A first substrate having a first surface to be coated is positioned in a processing chamber such that the first surface is placed in an opposing relationship to a second surface. The second surface may be provided by a wall of the processing chamber, or in some cases the second surface may be provided by a second substrate to be coated. The first substrate is held such that a gap exists between the first and second surfaces, and the gap is filled with at least one reaction mixture comprising reagents sufficient to form the crystalline film on at least the first surface. A thin gap (e.g., less than 2 mm) between the first and second surfaces is effective for producing a high quality film having a thickness less than 100 ?m. Confining the volume of the reaction mixture to a thin layer adjacent the substrate surface significantly reduces problems with sedimentation and concentration control.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: August 13, 2024
    Assignee: MATRIX SENSORS, INC.
    Inventors: David K Britt, Paul R Wilkinson, Steven Yamamoto
  • Patent number: 12032254
    Abstract: A display substrate, a display panel and a display apparatus. The display substrate including: a substrate having a display area; a plurality of sub-pixels arranged in an array and located in the display area of the substrate; and a plurality of data lines arranged in the display area of the substrate; the plurality of data lines extend in a column direction of the sub-pixels, and a column of sub-pixels are electrically connected with at least one of the plurality of data lines; and for at least one of the plurality of data lines, a side of an orthographic projection of the at least one of the plurality of data lines on the substrate facing orthographic projections of sub-pixels electrically connected with the at least one of the plurality of data lines has a plurality of first concave-convex structures.
    Type: Grant
    Filed: February 19, 2021
    Date of Patent: July 9, 2024
    Assignees: Hefei BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Qi Liu, Wei Zhang, Zhenkun Yu, Benzhi Xu, Jilei Gao, Xipeng Wang, Yonggang Zhang, Bin Li, Chao Li
  • Patent number: 12007587
    Abstract: The present disclosure provides a grating including: a first substrate including stacked first and second electrode layers each including strip-shaped electrodes with an identical width, strip-shaped electrodes in the first and second electrode layers arranged alternately; a second substrate opposite to the first substrate with a liquid crystal layer therebetween; driving modules for driving the strip-shaped electrodes to form light shading parts and light transmission parts, one light shading part and one adjacent light transmission part defining a grating unit, at least one grating unit defining a grating part, the driving modules arranged in one-to-one correspondence with the grating parts; and a control module for generating driving signals in one-to-one correspondence with the driving modules according to a distance between the human eyes and the grating, thereby changing a width of the grating unit corresponding to a crosstalk position. A 3D display device and a grating driving method are provided.
    Type: Grant
    Filed: November 18, 2020
    Date of Patent: June 11, 2024
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jinye Zhu, Sen Ma, Zhichong Wang, Tao Hong, Junxing Yang, Jing Yu, Tianyang Han
  • Patent number: 11994779
    Abstract: An electronic device includes a conductive structure, a first insulation layer and a second insulation layer. The first insulation layer is disposed on the conductive structure. The second insulation layer is disposed on the first insulation layer. The first insulation layer includes a first hole, and the first hole overlaps a part of the conductive structure. The second insulation layer includes a second hole, and the first hole and the second hole at least partially overlap. A width of the second hole is less than a width of the first hole.
    Type: Grant
    Filed: February 20, 2023
    Date of Patent: May 28, 2024
    Assignee: INNOLUX CORPORATION
    Inventor: Chun-Hsien Lin
  • Patent number: 11990482
    Abstract: An array substrate and an electronic device are disclosed. The electronic device includes a display panel including an array substrate. The array substrate includes a first insulating layer provided with a plurality of first via holes, a second insulating layer provided with a plurality of second via holes, and a second electrode layer includes a second electrode. An orthographic projection of at least one of the second via hole or the second electrode on the substrate is staggered from an orthographic projection of the first via hole on the substrate, so that a short between the first electrode and the second electrode can be prevented.
    Type: Grant
    Filed: September 18, 2021
    Date of Patent: May 21, 2024
    Assignee: WUHAN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Wei Tang
  • Patent number: 11978743
    Abstract: The present disclosure relates to a TFT array substrate and a display panel including the same.
    Type: Grant
    Filed: November 11, 2021
    Date of Patent: May 7, 2024
    Assignee: Everdisplay Optronics (Shanghai) Co., Ltd
    Inventors: Keitaro Yamashita, Yoshihiro Morimoto
  • Patent number: 11971637
    Abstract: A display device includes wires that are coupled to driver terminals that are able to be coupled to a driver integrated circuit (IC) and that are provided along a first direction and extending so as to spread toward outsides in the first direction as the wires are directed toward a second direction orthogonal to the first direction; and dummy wires that are provided along the wires on one outside and another outside in the first direction of the wires and that are not coupled to the driver terminals and the wires, wherein a number of the dummy wires on the one outside and a number of the dummy wires on the other outside are respectively three or more, the dummy wires extend in parallel with the wires, and a width of the dummy wire is equal to a width of the wire.
    Type: Grant
    Filed: September 14, 2021
    Date of Patent: April 30, 2024
    Assignee: Japan Display Inc.
    Inventors: Koji Yamamoto, Naoyuki Obinata, Kengo Shiragami
  • Patent number: 11971635
    Abstract: A U-shaped unit and a liquid crystal element with U-shaped coplanar electrode units provided by the invention are capable of increasing a horizontal electric field intensity in a power supply state, so that when the invention is applied to be used as a liquid crystal driving element, a required horizontal electric field intensity can be achieved with a lower driving voltage to reduce a required driving power when the liquid crystal element is used as a display screen, thereby achieving an effect of power saving.
    Type: Grant
    Filed: January 16, 2023
    Date of Patent: April 30, 2024
    Assignee: TUNGHAI UNIVERSITY
    Inventors: Chia-Yi Huang, Wei-Fan Chiang, Yi-Hong Shih
  • Patent number: 11953769
    Abstract: An electronic modulating device is provided, which includes a first substrate, an electrode, and an insulating layer. The electrode is disposed on the first substrate, wherein the electrode comprises an opening defining a top edge and a bottom edge of the electrode, and the opening has a central portion. The insulating layer is disposed on the electrode and within the opening. Wherein a thickness of the insulating layer at the bottom edge is greater than a thickness of the insulating layer at the central portion, and the electrode has a first inner side and at least a portion of the first inner side is uneven.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: April 9, 2024
    Assignee: INNOLUX CORPORATION
    Inventors: Liang-Yun Chiu, Tsung-Han Tsai
  • Patent number: 11946160
    Abstract: An apparatus and method is provided for coating a surface of a material with a film of porous coordination polymer. A first substrate having a first surface to be coated is positioned in a processing chamber such that the first surface is placed in a substantially opposing relationship to a second surface. In some embodiments, the second surface is provided by a wall of the processing chamber, and in other embodiments the second surface is provided by a second substrate to be coated. The first substrate is held such that a gap exists between the first and second surfaces, and the gap is filled with at least one reaction mixture comprising reagents sufficient to form the crystalline film on at least the first surface. A thin gap (e.g., having a thickness less than 2 mm) between the first and second surfaces is effective for producing a high quality film having a thickness less than 100 ?m.
    Type: Grant
    Filed: April 1, 2023
    Date of Patent: April 2, 2024
    Assignee: Matrix Sensors, Inc
    Inventors: David K Britt, Paul R Wilkinson, Steven Yamamoto
  • Patent number: 11906857
    Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: February 20, 2024
    Assignee: Japan Display Inc.
    Inventors: Yasushi Tomioka, Yosuke Hyodo, Hidehiro Sonoda, Noboru Kunimatsu
  • Patent number: 11874565
    Abstract: A display substrate, a manufacturing method thereof and a display device are provided. The display substrate includes a display region and a peripheral region surrounding the display region, and includes: a common electrode line extending in a first direction on a base substrate and arranged at the display region and the peripheral region; a first conductive pattern arranged at the peripheral region and electrically connected to the common electrode line; an insulation layer covering the first conductive pattern and the common electrode line, a via-hole being formed in the insulation layer, an orthogonal projection of the via-hole onto the base substrate not overlapping an orthogonal projection of the common electrode line onto the base substrate; and a second conductive pattern arranged at the peripheral region and at a side of the insulation layer distal to the first conductive pattern, and electrically connected to the first conductive pattern through the via-hole.
    Type: Grant
    Filed: December 30, 2020
    Date of Patent: January 16, 2024
    Assignees: Beijing BOE Display Technology Co., Ltd., BOE Technology Group Co., Ltd.
    Inventors: Chunguang Tian, Tianyu Xia, Xiaolong Li
  • Patent number: 11868576
    Abstract: A conducting structure is provided and includes a first layer; a first terminal on the first layer; a second layer overlapping the first layer via the first terminal; a second terminal on the second layer; a first hole which penetrates the second layer and the second terminal; an organic insulating layer located between the first terminal and the second layer, and having a second hole connected to the first hole; and a connecting material provided in the first and second holes to electrically connect the first terminal and the second terminal to each other, wherein a diameter of the second hole is greater than a diameter of the first hole.
    Type: Grant
    Filed: December 20, 2022
    Date of Patent: January 9, 2024
    Assignee: Japan Display Inc.
    Inventors: Shuichi Osawa, Shoji Hinata, Yoshikatsu Imazeki, Yoichi Kamijo, Yoshihiro Watanabe
  • Patent number: 11852937
    Abstract: The manufacturing yield of a display device is improved. The resistance of a display device to ESD is increased. The display device includes a substrate, a display portion, a connection terminal, a first wiring, and a second wiring. The first wiring is electrically connected to the connection terminal and includes a portion positioned between the connection terminal and the display portion. The second wiring is electrically connected to the connection terminal, is positioned between the connection terminal and an end portion of the substrate, and includes a portion in which a side surface is exposed at an end portion of the substrate. The display portion includes a transistor. The transistor includes a semiconductor layer, a gate insulating layer, and a gate electrode. The semiconductor layer and the second wiring include a metal oxide.
    Type: Grant
    Filed: July 13, 2022
    Date of Patent: December 26, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kenichi Okazaki, Yukinori Shima, Daisuke Kurosaki, Masataka Nakada
  • Patent number: 11837171
    Abstract: A gate driver includes: circuit parts having circuit elements thereon. The circuit parts are spaced apart from each other. Transparent parts are between the circuit parts. External light may pass through the transparent parts. Each of the circuit parts may include at least one circuit block. Each of the circuit blocks may be configured to perform the same function as others of the circuit blocks.
    Type: Grant
    Filed: November 19, 2021
    Date of Patent: December 5, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Sunghak Jo, Taehee Ko
  • Patent number: 11809035
    Abstract: A color filter substrate, a display panel and a display device are provided. The color filter substrate includes: a base substrate; a color conversion layer on the base substrate; a covering layer on a side of the color conversion layer away from the base substrate; and a polarizing layer on a side of the covering layer away from the base substrate. The polarizing layer includes a wire grid polarizer. The covering layer includes a first covering sub-layer and a second covering sub-layer, the first covering sub-layer is located on the side of the color conversion layer away from the base substrate, the second covering sub-layer is located on a side of the first covering sub-layer away from the base substrate, and a material of the first covering sub-layer is different from a material of the second covering sub-layer.
    Type: Grant
    Filed: January 11, 2021
    Date of Patent: November 7, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Ge Shi, Yujie Liu, Shi Shu, Wei Huang, Shiyu Zhang, Yuyao Wang, Yunsik Im, Xiaochuan Chen, Xue Dong, Ming Zhu, Song Yang
  • Patent number: 11789304
    Abstract: A display device is provided and includes first display area in which first pixel is provided; second display area in which second pixel is provided, second display area provided next to first display area; light shield surrounding first and second display areas, light shield having first slit surrounding first display area and second slit surrounding second display area; first sealant surrounding first and second display areas; and second sealant located between first and second display areas, second sealant having at least one opening which communicates first and second display areas to each other; wherein first slit is provided along first and second sealants and second slit is provided along first and second sealants, and part of first and second slits are parallelly extended along opening between first and second display areas.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: October 17, 2023
    Assignee: Japan Display Inc.
    Inventor: Koichiro Adachi
  • Patent number: 11774806
    Abstract: Liquid crystal display device is provided and includes first substrate having a first surface; second substrate having second surface opposed to and spaced from first surface; liquid crystal layer disposed between first and second surfaces, signal lines extending in parallel including first signal line; and spacers protruding from second surface to first surface, spacers including first spacer and second spacer adjacent to first spacer, wherein spacers overlap signal lines, first and second spacers overlap first signal line, and arrangement of spacers on one signal line is staggered, such that: center of first spacer shifts to right side of first signal line; and center of second spacer shifts to left side of first signal line.
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: October 3, 2023
    Assignee: Japan Display Inc.
    Inventor: Morikazu Nomura
  • Patent number: 11719983
    Abstract: The present disclosure provides a display panel, a manufacturing method thereof, and a display device. The display panel includes: a first medium and a first spacer wall between the first substrate and the second substrate, wherein the first sub-panel has filter pixels arranged at intervals, the first spacer wall is black and arranged along spaces between filter pixels, and a dielectric coefficient of the first spacer wall is greater than that of the first medium; and a second sub-panel on a light emergent side of the first sub-panel and including a second medium and a second spacer wall between the third substrate and the fourth substrate, wherein the second sub-panel has display pixels arranged at intervals, the second spacer wall is black and arranged along spaces between display pixels, and a dielectric coefficient of the second spacer wall is greater than that of the second medium.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: August 8, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Yang Yue, Qi Yao, Yong Yu, Hua Huang, Tong Yang, Shi Shu, Chuanxiang Xu, Xue Jiang, Haitao Huang, Xiang Li, Zhao Cui
  • Patent number: 11681188
    Abstract: An exemplary embodiment of the present inventive concept provides a display device including: a substrate; a metal layer disposed on the substrate; a pixel electrode disposed on the metal layer and including a protrusion overlapping the metal layer; a first insulating layer covering the metal layer and the pixel electrode; an extension of a drain electrode disposed on the first insulating layer and overlapping a portion of the protrusion; a second insulating layer covering the first insulating layer and the extension; and a pixel electrode connector disposed on the second insulating layer and overlapping the protrusion and the extension, wherein the first insulating layer and the second insulating layer include a first opening exposing an upper surface of the protrusion and an upper surface of the extension, and the pixel electrode connector contacts the upper surface of the extension and the upper surface of the protrusion through the first opening.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: June 20, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventor: In Woo Kim
  • Patent number: 11668982
    Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the dimeter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.
    Type: Grant
    Filed: September 16, 2022
    Date of Patent: June 6, 2023
    Assignee: Japan Display Inc.
    Inventors: Yasushi Tomioka, Yosuke Hyodo, Hidehiro Sonoda, Noboru Kunimatsu
  • Patent number: 11664385
    Abstract: A display device includes a first transistor having an oxide semiconductor layer, a gate wiring opposite the oxide semiconductor layer, a gate insulating layer between the semiconductor layer and the gate wiring, a first insulating layer including at least one insulating layer having a first contact hole outside the gate wiring, a planarization film having a second contact hole overlapping the first contact hole, a first transparent conductive layer including an area overlapping the gate wiring, a second insulating layer covering a side of the second contact hole, a second transparent conductive layer in contact with the oxide semiconductor layer through the first and second contact hole, a first resin filling the first and second contact hole coated by the second transparent conductive layer, and a third transparent conductive layer on the second transparent conductive layer and the first resin.
    Type: Grant
    Filed: September 28, 2022
    Date of Patent: May 30, 2023
    Assignee: Japan Display Inc.
    Inventors: Yoshitaka Ozeki, Nobutaka Ozaki, Koshiro Moriguchi
  • Patent number: 11662639
    Abstract: The present disclosure discloses a display panel and a display device. A part of the display panel corresponding to each pixel unit includes a pixel electrode layer, a first metal layer, a second metal layer, and a common electrode layer. The second metal layer includes a first data line and a second data line. The common electrode layer includes a common electrode, a main slot disposed on the common electrode, and a first slot and a second slot respectively located at different longitudinal positions. The first slot overlaps the first data line relative to the pixel electrode layer, and the second slot overlaps the second data line relative to the pixel electrode layer.
    Type: Grant
    Filed: September 3, 2021
    Date of Patent: May 30, 2023
    Assignee: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Yi Liu
  • Patent number: 11645995
    Abstract: An array substrate has a display area and a bonding region. The display area includes a distal region away from the bonding region. The array substrate includes a base, a common electrode located in the display area, and at least one first common signal line and at least one feedback signal line that are disposed on the base. The at least one first common signal line and the at least one feedback signal line are coupled to a portion of the common electrode located in the distal region, and extend to the bonding region to be coupled to a circuit board. A feedback signal line transmits a common voltage signal of the portion of the common electrode located in the distal region to the circuit board. A first common signal line transmits a first compensation common voltage signal to the portion of the common electrode located in the distal region.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: May 9, 2023
    Assignees: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiao Wang, Yan Yan, Yu Ma
  • Patent number: 11643751
    Abstract: An apparatus and method is provided for coating a surface of a material with a film of porous coordination polymer. A first substrate having a first surface to be coated is positioned in a processing chamber such that the first surface is placed in a substantially opposing relationship to a second surface. In some embodiments, the second surface is provided by a wall of the processing chamber, and in other embodiments the second surface is provided by a second substrate to be coated. The first substrate is held such that a gap exists between the first and second surfaces, and the gap is filled with at least one reaction mixture comprising reagents sufficient to form the crystalline film on at least the first surface. A thin gap (e.g., having a thickness less than 2 mm) between the first and second surfaces is effective for producing a high quality film having a thickness less than 100 ?m.
    Type: Grant
    Filed: March 10, 2021
    Date of Patent: May 9, 2023
    Assignee: MATRIX SENSORS, INC.
    Inventors: David K Britt, Paul R Wilkinson, Steven Yamamoto
  • Patent number: 11609450
    Abstract: An electro-optical device includes a first member having a translucent property, a second member having a translucent property and opposed to the first member with a space being disposed therebetween, and a plurality of pixel electrodes provided at an opposite side from the first member with respect to the second member. The first member includes a substrate body. The second member includes a transparent film. A plurality of lens surfaces having a protruding curved surface and each overlapping, in plan view, with corresponding one of the plurality of pixel electrodes are formed at a surface of the second member that is opposed to the first member. A pillar that extends through the space and is in contact with the first member and the second member is provided between the first member and the second member. The space can be formed by removing a sacrificial layer provided between the first member and the second member.
    Type: Grant
    Filed: April 6, 2021
    Date of Patent: March 21, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yohei Sugimoto
  • Patent number: 11573447
    Abstract: A display device is provided and includes first display area including first pixel; second display area including second pixels and provided next to first display area; light shield surrounding first and second display areas separately, first slit provided in light shield, first sealant surrounding first and second display areas; and second sealant located between first and second display areas, wherein second sealant comprises at least one opening which communicates first and second display areas to each other, and first slit is provided along outer circumference of first display area and outer circumference of second display area, and overlaps base end of second sealant which is connected with first sealant.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: February 7, 2023
    Assignee: Japan Display Inc.
    Inventor: Koichiro Adachi
  • Patent number: 11573471
    Abstract: The present application provides an array substrate and a liquid crystal display panel. The array substrate includes: a substrate including a display area and a light-transmitting functional area; a buffer layer disposed on the substrate and covering the display area and the light-transmitting functional area; a thin film transistor array layer disposed on the buffer layer, the thin film transistor array layer is provided with an aperture, and the aperture and the light-transmitting functional area are aligned with each other; and a support filling structure disposed in the aperture.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: February 7, 2023
    Assignee: Wuhan China Star Optoelectronics Technology Co., Ltd.
    Inventors: Wei Tang, Gaiping Lu
  • Patent number: 11506924
    Abstract: A first organic insulating film is arranged in a circumference area outside an active area on a first substrate. A circumference color filter is arranged in the circumference area on a second substrate. A second organic insulating film covers the circumference color filter. A seal material is arranged between the first and second organic insulating films to attach the first substrate and the second substrate. The seal material extends up to a position in which end portions of the first and second substrates overlap. A first spacer is arranged between the first and second organic insulating films in the circumference area. The first spacer is arranged on an active area side in the seal material. A second spacer is formed between the first and second organic insulating films in a position in which the end portions of the substrates overlap.
    Type: Grant
    Filed: March 16, 2021
    Date of Patent: November 22, 2022
    Assignee: Japan Display Inc.
    Inventor: Ayumi Mori
  • Patent number: 11495772
    Abstract: A display substrate including: a base substrate with a display region, an encapsulation region and an edge region on a periphery of the encapsulation region, the edge region includes a bonding region on at least one side of the base substrate; a plurality of stacked inorganic film layers on a side of the base substrate; a plurality of first grooves, at the edge region, spaced apart from each other in a direction distal from the encapsulation region, and extending along a periphery of the base substrate, at least one of the plurality of first groove runs through at least one inorganic film layer of the plurality of inorganic film layers, and a distance between each first groove and the display region is larger than that between each first groove and an edge of the base substrate; and an organic layer.
    Type: Grant
    Filed: June 14, 2019
    Date of Patent: November 8, 2022
    Assignees: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BEIJING BOE TECHNOLOGY DEVELOPMENT CO., LTD.
    Inventors: Zhiliang Jiang, Pan Zhao
  • Patent number: 11480833
    Abstract: In a liquid crystal display device, a common electrode is formed on an organic passivation film, an interlayer insulating film is formed on the common electrode, a pixel electrode with a slit is formed on the interlayer insulating film, and a through hole is formed in the organic passivation film and the interlayer insulating film, so that the pixel electrode is connected to a source electrode of a TFT through the through hole. Further, the taper angle around the upper base of the through hole is smaller than the taper angle around the lower base. Thus, the alignment film material can easily flow into the through hole when the diameter of the through hole is reduced to connect the pixel and source electrodes, preventing display defects such as uneven brightness due to the absence of the alignment film or due to the alignment film irregularity around the through hole.
    Type: Grant
    Filed: September 15, 2021
    Date of Patent: October 25, 2022
    Assignee: Japan Display Inc.
    Inventors: Yasushi Tomioka, Yosuke Hyodo, Hidehiro Sonoda, Noboru Kunimatsu
  • Patent number: 11476283
    Abstract: According to one embodiment, a display device includes a switching element including a drain electrode, a first insulating film including a first through-hole penetrated to the drain electrode, and being formed of an organic insulating material, a first connection electrode which is in contact with the drain electrode at the first through-hole, and is formed of a metal material, a second insulating film which is located on the first insulating film, is formed of an organic insulating material, and includes a second through-hole penetrated to the first connection electrode, and a pixel electrode electrically connected to the first connection electrode.
    Type: Grant
    Filed: September 16, 2020
    Date of Patent: October 18, 2022
    Assignee: Japan Display Inc.
    Inventors: Motoharu Miyamoto, Yoshinori Aoki
  • Patent number: 11402698
    Abstract: According to one embodiment, a display device includes first to third scanning lines, first and a second protrusion portions disposed on the second scanning line and arranged in a first direction, third and seventh protrusion portions disposed on a side close to the third scanning line on the second scanning line, fourth and sixth protrusion portions disposed on a side close to the first scanning line on the second scanning line, and a fifth protrusion portion disposed between the first protrusion portion and the second protrusion portion. The third and sixth protrusion portions are arranged in the second direction, and the fourth and seventh protrusion portions are arranged in the second direction.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: August 2, 2022
    Assignee: Japan Display Inc.
    Inventor: Koichiro Adachi
  • Patent number: 11401467
    Abstract: The present invention relates to a display device using a two-dimensional phase transition material including: a substrate; a metal layer formed on the substrate; an insulation layer formed on the metal layer; a transparent electrode layer formed on the insulation layer; a light absorption layer formed on the transparent electrode layer and formed of a phase transition material; and a passivation layer formed on the light absorption layer, wherein the light absorption layer undergoes reversible phase transition depending on any of temperature, magnetic field and electric field.
    Type: Grant
    Filed: December 11, 2019
    Date of Patent: August 2, 2022
    Assignee: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY
    Inventors: Kyoungsik Yu, Jung Hoon Park, Yeonghoon Jin, Youngjae Jeong, Taewon Park
  • Patent number: 11392004
    Abstract: The manufacturing yield of a display device is improved. The resistance of a display device to ESD is increased. The display device includes a substrate, a display portion, a connection terminal, a first wiring, and a second wiring. The first wiring is electrically connected to the connection terminal and includes a portion positioned between the connection terminal and the display portion. The second wiring is electrically connected to the connection terminal, is positioned between the connection terminal and an end portion of the substrate, and includes a portion in which a side surface is exposed at an end portion of the substrate. The display portion includes a transistor. The transistor includes a semiconductor layer, a gate insulating layer, and a gate electrode. The semiconductor layer and the second wiring include a metal oxide.
    Type: Grant
    Filed: November 25, 2019
    Date of Patent: July 19, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Kenichi Okazaki, Yukinori Shima, Daisuke Kurosaki, Masataka Nakada
  • Patent number: 11392001
    Abstract: The present invention provides a pixel structure and a liquid crystal display panel. The pixel structure includes a plurality of sub-pixels and a plurality of pixel electrodes, wherein a boundary of each of the sub-pixels has a hexagonal shape, each of the pixel electrodes includes at least three main electrodes disposed to intersect each other, all of the main electrodes intersect each other at an intersection, and the main electrodes define an area in each of the sub-pixels as a plurality of domains that are independent from each other.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: July 19, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao
  • Patent number: 11391995
    Abstract: A display device comprising: an array substrate; a counter substrate provided with color filters; and a liquid crystal layer between the array substrate and the counter substrate; wherein one surface of the array substrate includes a plurality of signal lines arranged side by side in a first direction with a gap interposed therebetween, a plurality of scanning lines arranged side by side in a second direction with a gap interposed therebetween, a first organic insulating film provided on the signal lines, and a second organic insulating film provided on the first organic insulating film; and each region surrounded by the corresponding scanning line and the corresponding signal line includes a semiconductor layer, a first contact conductive layer, a second contact conductive layer, and a first electrode.
    Type: Grant
    Filed: January 6, 2021
    Date of Patent: July 19, 2022
    Assignee: Japan Display Inc.
    Inventors: Motoharu Miyamoto, Tomokazu Ishikawa
  • Patent number: 11294214
    Abstract: According to one embodiment, a display device includes a first substrate including an electrode, a second substrate overlaid on the first substrate, an optical sheet overlaid on the second substrate, a conductive member located between the second substrate and the optical sheet, and a connecting member making electric connection between the conductive member and the electrode. The first substrate includes a first region overlaid on the second substrate, and a second region extending more than the second substrate and including the electrode. The second substrate includes a substrate end portion located on a boundary between the first region and the second region and extending along a first direction. The connecting member is in contact with the electrode and the conductive member.
    Type: Grant
    Filed: January 12, 2021
    Date of Patent: April 5, 2022
    Assignee: JAPAN DISPLAY INC.
    Inventor: Yasushi Nakano
  • Patent number: 11249567
    Abstract: A pad connection structure includes a substrate, a lower insulation layer formed on a top surface of the substrate, a pad electrode disposed on the lower insulation layer, and an upper insulation layer including an opening through which a top surface of the pad electrode. A step height via the opening is reduced by the lower insulation layer so that connecting reliability with a conductive connection structure is improved.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: February 15, 2022
    Assignee: DONGWOO FINE-CHEM CO., LTD.
    Inventors: Ju In Yoon, Jae Hyun Lee, Keon Kim