Patents Examined by Richard H Kim
  • Patent number: 10598992
    Abstract: A pixel array including a first common line, a first conductive line, a first connection line, a second common line, a second conductive line, a third common line, and a first connection structure is provided. The first common line is located on a first side of a first scan line. The first conductive line includes a first extending portion and a second extending portion. The first connection line crosses the first scan line so as to electrically connect the first extending portion to the second extending portion. The second common line is located on a first side of a second scan line. The second conductive line includes a third extending portion and a fourth extending portion. The first connection structure electrically connect the second common line to the third common line.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: March 24, 2020
    Assignee: Au Optronics Corporation
    Inventors: Jia-Hong Wang, Ya-Ling Hsu, Chen-Hsien Liao
  • Patent number: 10598989
    Abstract: In a liquid crystal apparatus, a second substrate is provided with a base layer and an optical compensation layer. A surface of the base layer faces a first substrate and is provided with a plurality of first inclined surfaces. A surface of the optical compensation layer faces the first substrate and is provided with a plurality of second inclined surfaces having a shape reflected with a shape of the plurality of first inclined surfaces. The base layer is provided with boundary grooves between adjacent ones of the first inclined surfaces. The plurality of first inclined surfaces each have a high portion having a maximum height and a low portion having a minimum height when viewed from the second substrate. The high portion is provided with a second flat portion. Between the second flat portion and the low portion, an inclined portion having a height continuously changing is provided.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: March 24, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Junichi Wakabayashi
  • Patent number: 10578932
    Abstract: According to an aspect, a liquid crystal display device includes: a first substrate and a second substrate that face each other; a liquid crystal layer provided between the first substrate and the second substrate; and a first electrode and a second electrode provided between the first substrate and the liquid crystal layer. The first electrode includes: at least an electrode base portion that extends in a first direction; and a plurality of comb-shaped portions that protrude from the electrode base portion at a fixed distance away from each other, and extend in a second direction different from the first direction. Each comb-shaped portion has a coupling portion layered on or under the electrode base portion.
    Type: Grant
    Filed: November 23, 2016
    Date of Patent: March 3, 2020
    Assignee: Japan Display Inc.
    Inventors: Masaya Tamaki, Toshiharu Matsushima
  • Patent number: 10578912
    Abstract: A touch sensitive active privacy screen, includes an apparatus having an electroactive privacy layer (122) of a display device. The electroactive privacy layer (122) is configured to restrict a propagation direction of light emission associated with a display layer (124) of the display device. The restriction of propagation is generated by micro louvers (412) formed in the electroactive privacy layer (122).
    Type: Grant
    Filed: September 30, 2016
    Date of Patent: March 3, 2020
    Assignee: INTEL CORPORATION
    Inventors: Thomas A. Nugraha, Dong Yeung Kwak, Jue Li, Chieko Uemizu
  • Patent number: 10571745
    Abstract: Provided is a quantum dot (QD) film for backlight unit, which includes a first protective film, a second protective film, a QD material layer, and a transmission/reflection film. The first and second protective films are disposed in opposite to each other and the QD material layer is interposed between the first and second protective films. The transmission/reflection film is disposed at the side of the second protective film facing away from the first protective film for reflecting a part of an incident light and transmitting the other part of incident light. Also provided is a backlight unit having such QD film and a liquid crystal display for enhancing the utilization of QD material and the brightness of the light emitted from the backlight unit, and preventing the backlight unit from emitting light with blue tone.
    Type: Grant
    Filed: April 13, 2018
    Date of Patent: February 25, 2020
    Assignee: HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventor: Xiaoyu He
  • Patent number: 10564481
    Abstract: A method for aligning liquid crystals is provided, and includes steps of providing a first substrate, forming a first electrode layer and a first alignment film on the first substrate; a second substrate, forming a second electrode layer and a second alignment film on the first substrate; forming a liquid crystal layer between the first alignment film and the second alignment film; providing an electrode plate and disposing the electrode plate on a side of the first substrate away from the first electrode layer; and applying a driving voltage between the electrode plate and the second electrode layer to align on the liquid crystal layer.
    Type: Grant
    Filed: November 10, 2017
    Date of Patent: February 18, 2020
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Sikun Hao
  • Patent number: 10564485
    Abstract: The present invention provides a liquid crystal display panel, which comprises a color film substrate, an array substrate and a liquid crystal layer sandwiched between the color film substrate and the array substrate, said array substrate has a pixel electrode where a surface is disposed with a number of recesses and a number of terraces, said number of recesses and said number of terraces are disposed in evenly intersectional arrangement, said respective recess is located at a position between two interconnected pixels, said respective recess is disposed with a first spacer, said respective terrace is disposed with a second spacer, a height of said first spacer protruded from said terrace is larger than a height of said second spacer protruded from said terrace, said first spacers and said second spacers are extended into the liquid crystal layer, for support of between said color film substrate and said array substrate.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: February 18, 2020
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventors: Xiaoxiao Wang, Peng Du
  • Patent number: 10558069
    Abstract: A display device includes a panel member, a flexible substrate, and a tap. The flexible substrate includes a substrate body and a substrate extending portion. The substrate body is disposed in an area of a surface of the panel member inner than an outer peripheral edge portion of the surface. The substrate extension portion is extended from an outer peripheral edge portion of the substrate body. The substrate extension portion includes an overlapping portion overlapping a section of the outer peripheral edge portion of the surface. The tape is pasted to the area inner than the outer peripheral edge portion of the surface. The tape covers the substrate extension portion that is folded back to the substrate body from an opposite side from the substrate body such that the overlapping portion does not overlap the outer peripheral edge portion of the surface to hold the substrate extension portion.
    Type: Grant
    Filed: June 5, 2019
    Date of Patent: February 11, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Shinji Tomokawa, Takafumi Matsuda, Akiyoshi Takaoka
  • Patent number: 10558070
    Abstract: A transmissive-type liquid crystal display device includes a base material having transmissivity, a light-shielding body having a grid pattern in a plan view seen from a thickness direction of the base material, a pixel electrode, a first insulator that is provided to cover the light-shielding body and has transmissivity, and a second insulator that is disposed in contact with the first insulator between the base material and the pixel electrode and has transmissivity. A refractive index of the second insulator is higher than a refractive index of the first insulator. An outer edge of a surface of the second insulator on the pixel electrode side overlaps the light-shielding body in the plan view.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: February 11, 2020
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yukihiro Sugiura
  • Patent number: 10558102
    Abstract: A method for forming a liquid crystal display panel and a liquid crystal display panel are provided. The method includes using a mask for the patterning of the second metal layer and using the mask to pattern the common electrode on the second substrate. As a result, the common electrode includes a hollow region formed thereon. The hollow region is the same as the pattern of the second metal layer. Therefore, the capacitance between the second metal layer and the common electrode can be reduced. The problem of horizontal crosstalk is mitigated. The display quality of the liquid crystal display panel is enhanced.
    Type: Grant
    Filed: November 16, 2017
    Date of Patent: February 11, 2020
    Assignee: SHENZHEN CHINA STAR OPTOELECTRONICS SEMICONDUCTOR DISPLAY TECHNOLOGY CO., LTD.
    Inventor: Fengling Bian
  • Patent number: 10551691
    Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in a pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.
    Type: Grant
    Filed: May 10, 2019
    Date of Patent: February 4, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hak Sun Chang, Eun-Kil Park, Hyun-Ho Kang, Jang Wi Ryu, Seung-Suk Yang, Ki Chul Shin, Se Hyun Lee, Jae-Soo Jang, Hyo Ju Jung
  • Patent number: 10551686
    Abstract: In a liquid crystal display device including a TFT substrate and a counter substrate, when an organic passivation film is not formed in the TFT substrate, the distance between the TFT substrate and the counter substrate in the display area of a liquid crystal display panel is provided by a cylindrical spacer. Also, the distance in the area where pixels, scan lines, and image signal lines are not formed within the liquid crystal display panel is provided by the cylindrical spacer. In this case, it is necessary to form a mount. The layer structure of the mount is the same as that of the TFT substrate with which the cylindrical spacer in the display area comes into contact. This makes it possible to equalize the distance of the liquid crystal layer of the liquid crystal display panel without an increase in production cost, and to prevent uneven brightness or color.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: February 4, 2020
    Assignee: Japan Display Inc.
    Inventor: Takahiro Nagami
  • Patent number: 10551678
    Abstract: A liquid crystal display device includes: a first polarizing plate; a first substrate; a first vertical alignment film; a liquid crystal layer; a second vertical alignment film; a second substrate; and a second polarizing plate, wherein a first retardation layer is disposed between the first polarizing plate and the liquid crystal layer and includes first and second areas having mutually different in-plane phase differences, a second retardation layer is disposed between the second polarizing plate and the liquid crystal layer and includes third and fourth areas having mutually different in-plane phase differences, the first and third areas overlap boundaries between at least four domains of liquid crystal molecules in a pixel region and have an in-plane phase difference in a predetermined range, and in-plane slow axes of the first and third areas and absorption axes of the first and second polarizing plates each have a predetermined azimuth.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: February 4, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Tsuyoshi Okazaki, Yuko Teraoka, Hiroshi Tsuchiya, Masanobu Mizusaki, Kiyoshi Minoura
  • Patent number: 10520775
    Abstract: The present disclosure relates to a liquid crystal display panel and a display device. The liquid crystal display panel includes a first substrate, a second substrate opposite to the first substrate, and a plurality of rectangular pixel inlays including at least two main photo spacers, the plurality of rectangular pixel arrays being disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: December 31, 2019
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Jaegeon You, Xinxing Wang
  • Patent number: 10514579
    Abstract: The display device includes a first substrate provided with a driver circuit region that is located outside and adjacent to a pixel region and includes at least one second transistor which supplies a signal to the first transistor in each of the pixels in the pixel region, a second substrate facing the first substrate, a liquid crystal layer between the first substrate and the second substrate, a first interlayer insulating film including an inorganic insulating material over the first transistor and the second transistor, a second interlayer insulating film including an organic insulating material over the first interlayer insulating film, and a third interlayer insulating film including an inorganic insulating material over the second interlayer insulating film. The third interlayer insulating film is provided in part of an upper region of the pixel region, and has an edge portion on an inner side than the driver circuit region.
    Type: Grant
    Filed: February 1, 2016
    Date of Patent: December 24, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasuharu Hosaka, Yukinori Shima, Kenichi Okazaki, Shunpei Yamazaki
  • Patent number: 10514580
    Abstract: The display device includes a first substrate provided with a driver circuit region that is located outside and adjacent to a pixel region and includes at least one second transistor which supplies a signal to the first transistor in each of the pixels in the pixel region, a second substrate facing the first substrate, a liquid crystal layer between the first substrate and the second substrate, a first interlayer insulating film including an inorganic insulating material over the first transistor and the second transistor, a second interlayer insulating film including an organic insulating material over the first interlayer insulating film, and a third interlayer insulating film including an inorganic insulating material over the second interlayer insulating film. The third interlayer insulating film is provided in part of an upper region of the pixel region, and has an edge portion on an inner side than the driver circuit region.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: December 24, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yasuharu Hosaka, Yukinori Shima, Kenichi Okazaki, Shunpei Yamazaki
  • Patent number: 10509257
    Abstract: The present disclosure relates to a manufacturing method of wire grid polarizers. The manufacturing method includes: forming a wire grid structure on a mold substrate, wherein the wire grid structure comprises a plurality of wire grids spaced apart from each other, bonding the wire grid structure with a carrier substrate by quantum-dot (QD) adhesive, wherein the QD adhesive includes QD material and adhesive, and detaching the wire grid structure from the mold substrate. The manufacturing process of the wire grid polarizers may be simplified and the yield rate may be enhanced. With the configuration, the color range, the brightness, and the optical performance of the display panel may be enhanced.
    Type: Grant
    Filed: May 17, 2017
    Date of Patent: December 17, 2019
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd
    Inventor: Minghui Li
  • Patent number: 10509269
    Abstract: Embodiments of the present disclosure disclose an array substrate, a liquid crystal display panel and a display device. A strip shaped transparent and electrically conductive shielding electrode is arranged above a gate line, and an outer contour of a projection of the shielding electrode on a base substrate surrounds a projection of the gate line on the base substrate, and the shielding electrode is insulated from both a pixel electrode and the gate line. The shielding electrode can shield the electrical field above the gate line.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 17, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Wenjun Xiao, Shijun Wang, Xi Chen, Xue Dong, Zhifu Li, Wenbo Jiang, Yanna Xue, Yue Li, Zhiying Bao, Zhenhua Lv, Yong Zhang, Lei Mi, Yue Geng
  • Patent number: 10510309
    Abstract: A display panel for displaying an image is provided with a plurality of pixels arranged in a matrix. Each pixel includes one or more units each including a plurality of subunits. Each subunit includes a transistor in which an oxide semiconductor layer which is provided so as to overlap a gate electrode with a gate insulating layer interposed therebetween, a pixel electrode which drives liquid crystal connected to a source or a drain of the transistor, a counter electrode which is provided so as to face the pixel electrode, and a liquid crystal layer provided between the pixel electrode and the counter electrode. In the display panel, a transistor whose off current is lower than 10 zA/?m at room temperature per micrometer of the channel width and off current of the transistor at 85° C. can be lower than 100 zA/?m per micrometer in the channel width.
    Type: Grant
    Filed: March 7, 2017
    Date of Patent: December 17, 2019
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Patent number: 10502996
    Abstract: A display motherboard and a method of cutting the same are provided, which relate to a display technology to form a display panel of narrow bezel.
    Type: Grant
    Filed: August 21, 2017
    Date of Patent: December 10, 2019
    Assignees: BOE TECHNOLOGY GROUP CO., LTD., CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD.
    Inventors: Zhuo Wang, Haoyuan Fan, Wulin Shen