Patents Examined by Jonathan Y Jung
  • Patent number: 11029562
    Abstract: A liquid crystal display device comprises a liquid crystal panel and a backlight unit under the liquid crystal panel and including a circuit board; a plurality of LED packages mounted on the circuit board; an encapsulation member over the circuit board and covering the plurality of LED packages; and a multi-pattern sheet over the encapsulation member and including a glass complex body containing a phosphor and a plurality of diffusion patterns on an upper surface of the glass complex body, wherein the plurality of diffusion patterns include at least one first pattern corresponding to an LED package and at least one second pattern corresponding to a portion between adjacent LED packages.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: June 8, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Rok-Hee Lee, Yong-Seok Kwak, Il-Soo Kim
  • Patent number: 11016344
    Abstract: A liquid crystal display includes a first display panel and a second display panel facing each other, a driver connecting line disposed on the first display panel, a driving circuit part connected to the driver connecting line, a backlight unit disposed adjacent to the first display panel, a reinforcing part overlapping the driver connecting line and disposed adjacent to at least one side of the second display panel, a second polarizer disposed on the second display panel, and a film layer disposed on the second polarizer and the reinforcing part. The second polarizer overlaps a top surface of the second display panel and does not overlap a top surface of the reinforcing part.
    Type: Grant
    Filed: May 17, 2019
    Date of Patent: May 25, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jae-Hwan Jeon, Sang Hwan Lee, Ki Seok Cha
  • Patent number: 11009758
    Abstract: A display panel displaying an image includes a first substrate, a second substrate disposed opposite the first substrate, electric optical substance sealed between the first substrate and the second substrate, a transistor disposed on the first substrate and supplying an electric signal to the electric optical substance and including an oxide semiconductor film as an activating layer, and a light blocking film disposed on the second substrate and blocking visible light from transmitting therethrough, the light blocking film having a hole in a position overlapping the transistor in a plan view.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: May 18, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yoshimasa Chikama, Jun Nishimura, Yoshiharu Hirata
  • Patent number: 11003027
    Abstract: A liquid crystal display includes: a first pixel and a second pixel for displaying different colors, the first pixel and the second pixel each including a first sub-pixel electrode receiving a first voltage; a second sub-pixel electrode receiving a second voltage; an insulating layer disposed between the first sub-pixel electrode and the second sub-pixel electrode; and a common electrode receiving a common voltage. A first portion of the first sub-pixel electrode and a second portion of the second sub-pixel electrode overlap each other, a difference between the first voltage and the common voltage is larger than a difference between the second voltage and the common voltage, and a ratio of the second voltage to the first voltage for the first pixel is different from a ratio of the second voltage to the first voltage for the second pixel.
    Type: Grant
    Filed: March 5, 2020
    Date of Patent: May 11, 2021
    Inventors: Min-Joo Han, Hyo Sik Kim, Kyu Su Ahn, Dan Bi Yang, Hee Hwan Lee, Hoon Kim, Ki Chui Shin
  • Patent number: 11002998
    Abstract: A backlight system controls a viewing angle in a switchable privacy display system that achieves a strong private mode and enhanced brightness in the private and public modes as compared to conventional configurations. The backlight system includes a first backlight unit that emits light from a non-viewing side of the backlight system toward a viewing side of the backlight system; a second backlight unit located on a viewing side of the first backlight unit that emits light toward the viewing side of the backlight system; and a privacy optic that includes a liquid crystal material and is located on a non-viewing side of the second backlight unit and between the first backlight unit and the second backlight unit, wherein the privacy optic operates to transmit light from the first backlight unit in a limited viewing angle range.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: May 11, 2021
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Hywel Hopkin, Nathan James Smith
  • Patent number: 11003007
    Abstract: A light modulating device including: a light transmissive plate having a curved surface; a light modulating cell; and an optically transparent adhesive film which is disposed between the curved surface of the light transmissive plate and the light modulating cell and attaches one side of the light modulating cell to the curved surface of the light transmissive plate.
    Type: Grant
    Filed: March 21, 2017
    Date of Patent: May 11, 2021
    Assignee: DAI NIPPON PRINTING CO., LTD.
    Inventor: Yusuke Hagiwara
  • Patent number: 10996524
    Abstract: A display device with low power consumption and high display quality is provided. The display device includes first and second electrodes. One pixel includes a region in which the distance between the first electrode and the second electrode is constant and a region in which the distance varies; this structure allows the switching operation of liquid crystal to start in a predetermined region, thereby improving the stability of the operation of the liquid crystal. A pixel region is divided into two regions in which the liquid crystals are aligned in the two respective directions when switching is performed, whereby viewing angle characteristics are improved. Furthermore, the supply of a potential to a third electrode suppresses alignment disorder of the liquid crystal and improves the display quality.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: May 4, 2021
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Yusuke Kubota, Daisuke Kubota
  • Patent number: 10996506
    Abstract: A polyhedron type display device includes: a plurality of liquid crystal panels connected to each other to constitute a polyhedral shape; a light source housing at a center of mass of the polyhedral shape; a light source unit accommodated in the light source housing, the light source unit emitting a light to supply the light to the plurality of liquid crystal panels; a light source supporting pillar connecting and supporting the light source housing and the plurality of liquid crystal panels; a structure supporting pedestal supporting the light source supporting pillar; a supporting panel supporting the plurality of liquid crystal panels; a radiating pillar connected to the light source unit and emitting a heat of the light source unit; and a protecting cover covering and protecting the radiating pillar.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: May 4, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: Sun-Woong Kim, Dong-Seok Lee, Su-Jin Chang, Yeong-Eun Son
  • Patent number: 10989956
    Abstract: A display device includes a light source, a light-directing element, a reflective display element, and a microlens array. The light-directing element is disposed on the transmission path of a lighting beam provided by the light source for projecting the lighting beam toward the first direction. The reflective display element includes a plurality of micro-image units, wherein each micro-image unit converts the lighting beam projected from the light-directing element into an sub-image beam and reflects the sub-image beam. The microlens array is disposed on the transmission path of the sub-image beams, wherein the light-directing element is located between the microlens array and the reflective display element. The microlens array includes a plurality of microlenses. Each sub-image beam pass throughs the light-directing element and is projected to an aperture by the corresponding microlens, and the sub-image beams pass through the aperture to form an image beam.
    Type: Grant
    Filed: February 1, 2019
    Date of Patent: April 27, 2021
    Assignee: Coretronic Corporation
    Inventors: Yi-Chien Lo, Hsin-Hsiang Lo, Chuan-Chung Chang, Fu-Ming Chuang
  • Patent number: 10976596
    Abstract: An element substrate of an electro-optical device (substrate for an electro-optical device) includes a first lens and a second lens. The first lens is formed between a first substrate and a switching element, and the second lens is formed between the switching element and a pixel electrode. The second lens includes a second lens concave surface and a second lens-forming lens layer. The second lens concave surface is recessed in a surface of an interlayer insulating film. The second lens-forming lens layer is filled in the inside of the second lens concave surface. The interlayer insulating film includes a contact hole in a location not overlapping, in a plan view, with the second lens concave surface. The contact hole electrically couples the pixel electrode to the switching element.
    Type: Grant
    Filed: August 28, 2018
    Date of Patent: April 13, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Satoshi Ito
  • Patent number: 10969642
    Abstract: Stable, macroscopic single-crystal chiral liquid crystal compositions are described. The compositions include a single-crystal chiral liquid crystal material on a patterned surface. The patterned surface seeds a particular crystallographic orientation at the substrate-liquid crystal interface. Also described are methods of forming the single-crystal chiral liquid crystal compositions.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: April 6, 2021
    Assignee: The University of Chicago
    Inventors: Juan Jose de Pablo, Paul Franklin Nealey, Xiao Li, Jose A. Martinez-Gonzalez, Monirosadat Sadati, Rui Zhang, Ye Zhou
  • Patent number: 10962839
    Abstract: The liquid crystal display panel includes in the following order from a viewing surface side to a back surface side: a first polarizer; a first ?/4 retardation layer; a first substrate; a second ?/4 retardation layer; a liquid crystal layer; a second substrate; and a second polarizer, the liquid crystal display panel being in a transverse electric field mode, the first substrate including a color filter layer in a display region, the second ?/4 retardation layer being a single layer covering the color filter layer and including a first retardation portion in an end region of the display region and a second retardation portion in a central region of the display region, the first retardation portion having a greater thickness than the second retardation portion, and the first retardation portion and the second retardation portion differing from each other in in-plane retardation by 10 nm or less.
    Type: Grant
    Filed: November 28, 2018
    Date of Patent: March 30, 2021
    Assignee: SHARP KABUSHIKI KAISHA
    Inventors: Yuichi Kawahira, Kiyoshi Minoura, Akira Sakai, Takako Koide, Masahiro Hasegawa, Koji Murata
  • Patent number: 10948791
    Abstract: A liquid crystal device including a base member that is transmissive, a pixel electrode that is transmissive, a first insulator that is transmissive and that is disposed between the base member and the pixel electrode, and a second insulator that is transmissive and that surrounds and abuts the first insulator in a plan view from a thickness direction of the base member. The first insulator includes a first portion having a refractive index higher than a refractive index of the second insulator, and a second portion positioned between the base member and the first portion and having a refractive index lower than the refractive index of the first portion and higher than the refractive index of the second insulator.
    Type: Grant
    Filed: June 4, 2019
    Date of Patent: March 16, 2021
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Yutaka Tsuchiya
  • Patent number: 10942416
    Abstract: A method includes adjusting a focal length of an adaptive liquid lens that includes a layer of optical fluid on a substrate and in conjunction with adjusting the focal length of the adaptive liquid lens, adjusting a liquid crystal element coupled with the adaptive liquid lens. The method also includes transmitting light through the adaptive liquid lens and the liquid crystal element. Also disclosed is a hybrid lens including an adaptive liquid lens and a liquid crystal element coupled with the adaptive liquid lens. The liquid crystal element reduces optical artifacts caused by the adaptive liquid lens. The adaptive liquid lens includes a layer of optical fluid on a substrate, where a focal length of the adaptive liquid lens is adjustable.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: March 9, 2021
    Assignee: Facebook Technologies, LLC
    Inventors: Lu Lu, Andrew John Ouderkirk, Scott Charles McEldowney
  • Patent number: 10928666
    Abstract: Provided is a display device with enhanced uniformity of brightness. The display device includes a display panel, and a backlight unit configured to supply light to the display panel, wherein the display panel includes a liquid crystal panel with first and second surfaces opposite to each other, a first polarizing plate arranged on the first surface of the liquid crystal panel, a second polarizing plate arranged on the second surface of the liquid crystal panel, a light absorbing layer arranged on the second polarizing plate to absorb a portion of the light supplied from the backlight unit, and a light absorbing material included in the light absorbing layer to absorb light of particular wavelengths.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: February 23, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young Chol Lee, Wook-Jae Jeon, Il Yong Jung
  • Patent number: 10908443
    Abstract: A display device includes: a first frame including a frame portion covering a peripheral portion of a display panel; a second frame including a panel support sandwiching the display panel with the frame portion; an optical sheet being opposite to the display panel in a first direction, an outer peripheral end of the optical sheet being opposite to the panel support; a transparent substrate on which the optical sheet is disposed; a third frame including a main body having an accommodation space accommodating light emitting elements, and a substrate support extending from the main body to support the transparent substrate; and spacer members disposed between the panel support and the substrate support. The optical sheet and the panel support are disposed with a space interposed therebetween in the first direction, and each spacer member includes a restriction unit restricting movement of the transparent substrate in the first direction.
    Type: Grant
    Filed: June 25, 2018
    Date of Patent: February 2, 2021
    Assignees: PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD., PASONA KNOWLEDGE PARTNER INC.
    Inventor: Shuhei Yokota
  • Patent number: 10908449
    Abstract: A substrate includes a base, a first electrode provided on the base, and a plurality of transparent organic patterns provided on the first electrode. Part or whole of each of a plurality of color sub-pixel regions of the substrate does not overlap with a region where each of the plurality of the transparent organic patterns is located. Microcapsules are scattered in each of the plurality of transparent organic patterns, and each of the microcapsules includes a capsule shell and light-absorbing particles and light-reflecting particles which are moveable in the capsule shell. Moving directions of the light-absorbing particles are substantially opposite to moving directions of the light-reflecting particles under an action of an electric field having an electric field direction perpendicular to the base, and the first electrode is included in electrodes forming the electric field.
    Type: Grant
    Filed: July 30, 2018
    Date of Patent: February 2, 2021
    Assignees: BEIJING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Xiaojuan Wu, Chunlei Wang
  • Patent number: 10901252
    Abstract: A display device includes a display panel, a mold frame that has a support for a lower surface of the display panel, and a first side wall portion that vertically extends from the support; a flexible printed circuit board disposed outside the first side wall portion that connects the circuit board and the display panel; and a shielding case that includes a second bottom portion that covers a part of the flexible printed circuit board, and a third side wall portion that extends upward from the second bottom portion, is fastened to the first side wall portion and covers a part of the flexible printed circuit board. The first side wall portion has an opening, and the shielding case includes a hook that extends from the third side wall portion into the opening.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jingyu Sim, Kwangsun You, Dongjin Park, Junggil Oh, Wonchul Lee, Byoungjin Jin, Jonghyeon Choi
  • Patent number: 10895772
    Abstract: A liquid crystal display device includes: a substrate; a thin film transistor in a pixel region over the substrate; a common electrode over the thin film transistor; a pixel electrode connected to the thin film transistor; and a liquid crystal layer including a plurality of liquid crystal capsules over the common electrode and the pixel electrode, wherein each of the plurality of liquid crystal capsules includes a shell and a core having a plurality of liquid crystal molecules therein, and wherein a gap distance between the liquid crystal molecules in adjacent liquid crystal capsules is equal to or greater than 20 nm and equal to or smaller than 0.3 times of a capsule diameter of the adjacent liquid crystal capsules.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: January 19, 2021
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Kyeong-Jin Kim, Kyung-Su Ha, Eun-Woo Lee
  • Patent number: 10866459
    Abstract: Backlight module and display device are provided. The backlight module includes: a light-emitting area, a non-light-emitting area, at least one notch, a shell, a light source, and a light guide plate, wherein the light-emitting area includes a first edge and a second edge; the first edge includes a sub-edge; the light source is on at least one side of the light guide plate; the light-emitting area includes at least one compensation area adjacent to the notch, and the compensation area is on a side of the notch away from the light source; the light guide plate includes a first portion and a second portion, and the first portion is in the compensation area; a thickness of the first portion is greater than a thickness of the second portion; and a plurality of protrusions is on a side surface of the first portion facing toward the back plate.
    Type: Grant
    Filed: March 19, 2019
    Date of Patent: December 15, 2020
    Assignee: XIAMEN TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventor: Yatao Wang