Patents Examined by Dung T. Nguyen
  • Patent number: 11644709
    Abstract: According to one embodiment, a display device includes a first substrate including a light-shielding layer and a conductive line having a first side surface and a second side surface on a side opposite to the first side surface, a second substrate opposed to the first substrate, a polymer dispersed liquid crystal layer held between the first substrate and the second substrate, and including a polymer and liquid crystal molecules, and a light-emitting element opposed to an end portion of at least one of the first substrate and the second substrate, wherein the first side surface is closer to the light-emitting element than the second side surface, and the light-shielding layer covers at least the first side surface of the conductive line.
    Type: Grant
    Filed: June 2, 2022
    Date of Patent: May 9, 2023
    Assignee: Japan Display Inc.
    Inventors: Tae Kurokawa, Kentaro Okuyama
  • Patent number: 11630347
    Abstract: According to one embodiment, a display device includes a first transparent substrate having a first side surface extending over a first area, a second area and a third area, a second transparent substrate opposed to the first transparent substrate in the third area, a polymer dispersed liquid crystal layer, a first wiring board mounted with a first light-emitting element in the first area, a second wiring board mounted with a second light-emitting element in the second area, a first terminal connected to a power supply in the first area, a second terminal connected to the second wiring board in the second area, and a first conductive layer arranged on the first side surface and connected to the first terminal and the second terminal.
    Type: Grant
    Filed: July 7, 2021
    Date of Patent: April 18, 2023
    Assignee: Japan Display Inc.
    Inventors: Takayuki Imai, Masayuki Ikari
  • Patent number: 11624956
    Abstract: The present disclosure provides a display panel and a display device including the same, in which heights of at least some of metal terminals in a flexible circuit board bonding pad increase in a direction away from a driving chip. Therefore, more space is reserved for connecting traces between the metal terminals and the driving chip, thereby avoiding occurrence of a display abnormality caused by short-circuiting between the connecting traces due to limitation of space for setting the connecting traces and avoiding the metal terminals being too close to a fan-out trace area in order to reduce impedance.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: April 11, 2023
    Assignee: Wuhan China Star Optoelectronics Technology Go., Ltd.
    Inventor: Yantao Lu
  • Patent number: 11624954
    Abstract: A display device includes: a plurality of pixel electrodes arranged in the display region of a first substrate; a color filter provided on a second substrate opposing the first substrate and overlapping the pixel electrode; a planarization insulating layer provided on the color filter; a common electrode provided on the planarization insulating layer and having an opening; a spacer arranged between the pixel electrode and the common electrode; and a light-shielding layer provided between the first substrate and the pixel electrode and overlapping the spacer.
    Type: Grant
    Filed: September 20, 2021
    Date of Patent: April 11, 2023
    Assignee: Japan Display Inc.
    Inventor: Kenji Tanase
  • Patent number: 11624957
    Abstract: An electro-optical panel including a display region includes a first terminal group including a plurality of first terminals arranged along a first side of a liquid crystal panel; and a second terminal group disposed between the first terminal group and the display region and including a plurality of second terminals arranged along the first side, in which the number of the plurality of second terminals is smaller than the number of the plurality of first terminals.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: April 11, 2023
    Assignee: SEIKO EPSON CORPORATION
    Inventor: Shinsuke Fujikawa
  • Patent number: 11614663
    Abstract: A display device includes a first substrate, a second substrate facing the first substrate, and a sealing layer respectively including first, second and third side surfaces coplanar with each other; a first recess defined recessed from each of the first side surface, the second side surface and the third side surface; a first conductive pattern in the first recess; and a first driver facing each of the first side surface, the second side surface and the third side surface. At the first recess: the first conductive pattern is exposed to outside the first substrate, the second substrate and the sealing layer, and the first driver is electrically connected to the first conductive pattern.
    Type: Grant
    Filed: January 29, 2021
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jingwan Jang, Ho Sup Choi, Sungwoo Lee, Kyung-Hwa Lim
  • Patent number: 11604389
    Abstract: A flexible display apparatus including a flexible display panel, a driving chip and a hot-melt protective layer is provided. The flexible display panel has a display area and a bonding area located outside the display area. The driving chip is disposed on the bonding area of the flexible display panel via at least one flexible circuit board. The hot-melt protective layer is disposed on the display area and a portion of the flexible circuit board. The hot-melt protective layer locates on a top surface of the flexible display panel.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: March 14, 2023
    Assignee: E Ink Holdings Inc.
    Inventor: Lih-Hsiung Chan
  • Patent number: 11597880
    Abstract: A polymer film is provided, the polymer film comprises a liquid crystal polymer, comprising a soluble liquid crystal polymer and an insoluble liquid crystal polymer; and a polyimide polymer, accounting for 5 wt % or more of the polymer film. A method for manufacturing the polymer film is also provided, the method for manufacturing the polymer film comprises steps: providing a liquid crystal polymer powder, a particle size of the liquid crystal polymer powder is 0.1 um to 20 um; providing a liquid crystal polymer glue, a solid content of which is greater than 3 wt %; providing a polyamic acid glue; mixing the liquid crystal polymer powder, the liquid crystal polymer glue and the polyamic acid glue into a mixed solution, the mixed solution is made into a gel film, and the gel film is baked at a temperature of 300° C. to form a polymer film.
    Type: Grant
    Filed: May 25, 2022
    Date of Patent: March 7, 2023
    Assignee: TAIMIDE TECHNOLOGY INCORPORATION
    Inventors: Yi-Hsueh Ho, Meng-Ying Tsai
  • Patent number: 11598995
    Abstract: A beam shaping device (1; 31) comprising first (3; 33) and second (4; 37) optically transparent substrates, a liquid crystal layer (2; 36) sandwiched there between, and first (5; 34) and second (6; 35) electrodes arranged on a side of the liquid crystal layer (2; 36) facing the first substrate (3; 34). The beam shaping device (1; 31) is controllable between beam-shaping states, each permitting passage of light through the beam-shaping device in a direction perpendicular thereto. The beam shaping device (1; 31) is configured in such a way that application of a voltage (V) across the first (5; 34) and second (6; 35) electrodes results in an electric field having a portion essentially parallel to the liquid crystal layer (2; 36) in a segment thereof between neighboring portions of the electrodes (5, 6; 34; 35) and extending substantially from the first substrate (3; 34) to the second (4; 35) substrate.
    Type: Grant
    Filed: October 11, 2019
    Date of Patent: March 7, 2023
    Assignee: Koninklijke Philips N.V.
    Inventors: Rifat Ata Mustafa Hikmet, Ties van Bommel, Thomas Caspar Kraan, Leon Hendrikus Christiaan Kusters, Siebe Tjerk DeZwart, Oscar Hendrikus Willemsen, Marcellinus Petrus Carolus Michael Krijn
  • Patent number: 11586075
    Abstract: A method for aligning molecular orientations of liquid crystals and/or polymeric materials into spatially variant patterns uses metamasks. When non-polarized or circularly polarized light is transmitted through or reflected by the metamasks, spatially varied polarization direction and intensity patterns of light can be generated. By projecting the optical patterns of the metamasks onto substrates coated with photoalignment materials, spatially variant molecular orientations encoded in the polarization and intensity patterns are induced in the photoalignment materials, and transfer into the liquid crystals. Possible designs for the metamask use nanostructures of metallic materials (e.g., rectangular nanocuboids of metallic materials arrayed on a transparent substrate).
    Type: Grant
    Filed: February 7, 2018
    Date of Patent: February 21, 2023
    Assignee: KENT STATE UNIVERSITY
    Inventors: Qi-Huo Wei, Hao Yu, Yubing Guo, Miao Jiang, Oleg D. Lavrentovich
  • Patent number: 11579500
    Abstract: A display device includes a first liquid crystal panel configured to display an image to be seen by the observer, and a second liquid crystal panel laid on the first liquid crystal panel. The second liquid crystal panel includes a black matrix defining pixels, opaque gate lines disposed to be distant from one another in a first direction, and opaque data lines disposed to be distant from one another in a second direction different from the first direction. Lines of the black matrix disposed to be distant from one another in the first direction and the gate lines constitute dark lines disposed at a specified pitch in the first direction. Lines of the black matrix disposed to be distant from one another in the second direction and the data lines constitute dark lines disposed at a specified pitch in the second direction.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: February 14, 2023
    Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
    Inventors: Takeshi Sasaki, Tsutomu Kadotani, Hidenori Ikeno
  • Patent number: 11579496
    Abstract: A display device may include a display panel having a display area and a non-display area located in a first direction from the display area, a printed circuit board located in the first direction from the non-display area and configured to generate a signal, a driving film connected to the non-display area of the display panel and configured to drive the display panel in response to the signal, and a connecting film having a first end connected to the non-display area of the display panel and a second end connected to the printed circuit board. The connecting film electrically connects the printed circuit board and the driving film.
    Type: Grant
    Filed: January 7, 2019
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sunghyun Kim, Namsoo Kang, Soonkyeong Kwon, Yoonsup Kim, Sewon Min, Kihyun Sung, JunYong Ahn
  • Patent number: 11573474
    Abstract: The present disclosure provides a display module and a display device. The display module includes: a substrate in which the substrate includes a first surface and a second surface that are arranged to face each other, and a plurality of side surfaces simultaneously connected to the first surface and the second surface; a display layer arranged on the first surface of the substrate; and a protection structure arranged at a connection position between two adjacent sides of the plurality of side surfaces of the substrate.
    Type: Grant
    Filed: December 16, 2019
    Date of Patent: February 7, 2023
    Assignees: Chongqing BOE Smart Electronics System Co., Ltd., BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Tianlong Li, Zili Ou, Xuangang Li, Qiangeng Cheng, Ganggui Shi, Chuanbo Zou
  • Patent number: 11567376
    Abstract: the present application provides a display panel and manufacturing method thereof, the display panel includes: a substrate, which comprises a first substrate and a second substrate arranged oppositely; a black matrix layer, formed on the first substrate; an alignment layer, formed on the black matrix layer and the second substrate; a color filter layer, formed on the first substrate or the second substrate; a liquid crystal layer, formed between the first substrate and the second substrate; and an active switch, formed on the substrate; where at least one groove is formed on the black matrix layer, a shading layer is formed on the position of the substrate corresponding to the groove, and the area of the substrate in which the groove is orthogonally projected is fully covered by the area of the substrate in which the shading layer is orthogonally projected.
    Type: Grant
    Filed: December 12, 2017
    Date of Patent: January 31, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventor: Bei Zhou Huang
  • Patent number: 11561428
    Abstract: An optical device capable of varying transmittance, such that can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Grant
    Filed: April 25, 2018
    Date of Patent: January 24, 2023
    Inventors: Byoung Kun Jeon, Moon Soo Park, Seong Min Lee, Ji Hoon Park
  • Patent number: 11561427
    Abstract: A 3D liquid crystal display panel includes: a first substrate, a second substrate, and a first grating layer including grating openings arranged in an array for realizing 3D display; and a CF layer including a plurality of filter units arranged in an array, a black matrix disposed between adjacent filter units, and at least one light shielding strip disposed inside each of the filter units and dividing each of the filter units into a plurality of light transmitting regions. The 3D liquid crystal display panel is configured to apply voltages to the electrode layer to form a liquid crystal grating in the liquid crystal layer, and a collimated light incident to the liquid crystal layer passes through the liquid crystal grating and pass through the filter unit to form a monochromatic light, and then, is emitted out from the grating openings.
    Type: Grant
    Filed: April 29, 2019
    Date of Patent: January 24, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventor: Zhongxiao Li
  • Patent number: 11556023
    Abstract: An object includes an electro-optic display device provided with an optically active element, the optical properties thereof can be modified by applying an electric voltage or current between at least one electrode and one corresponding auxiliary electrode, between which the optically active element is disposed. The object further includes a middle part which delimits an opening closed by a crystal including a bottom surface beneath which the electro-optic display device is arranged. The crystal is provided with an opaque frame which is made remotely from the edges of the opening and which covers the contour of the electro-optic display device so as to conceal electrical connection elements. The electro-optic display device defines an active display area which is confined by the opaque frame, such that, when the electro-optic display device is activated and displaying information, a transparent area remains between the opaque frame and the edges of the opening.
    Type: Grant
    Filed: October 9, 2019
    Date of Patent: January 17, 2023
    Assignee: The Swatch Group Research and Development Ltd
    Inventors: Axel Schindler, Alain Hamm
  • Patent number: 11556025
    Abstract: A display substrate including a scan driving circuit, a scan line, and an insulating pattern. The scan driving circuit includes a connection electrode disposed on a plurality of insulating layers, a plurality of signal lines, and a stage circuit connected to the signal lines and overlaps a non-display area. The scan line overlaps a display area and is connected to the scan driving circuit. The insulating pattern is disposed on the insulating layers, covers the connection electrode, and makes contact with a sealant.
    Type: Grant
    Filed: October 6, 2020
    Date of Patent: January 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-seung Kim, Kyongsub Kim, Tae Seop Kim, Taehoon Kim
  • Patent number: 11543709
    Abstract: A display substrate including a base substrate having a display area and a non-display area around the display area, a plurality of gate lines disposed in the display area and extending in a first direction, a plurality of data lines disposed in the display area, insulated from the gate lines, and extending in a second direction crossing the first direction, and a plurality of data line extension portions extending from the data lines to the non-display area, in which each of the data line extension portions includes a first portion and a second portion disposed at a higher position than the first portion.
    Type: Grant
    Filed: September 3, 2020
    Date of Patent: January 3, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung-Kyu Lee, Hyunseong Kang, Suin Kim, Byeongjae Ahn, Gijung Lee, Byeonghoon Cho
  • Patent number: 11543714
    Abstract: A display device includes: a first panel including a first image-forming surface for forming a first image visually recognized by a user and a plurality of first pixels; a second panel including a second image-forming surface for forming a second image visually recognized by the user and a plurality of second pixels; and a half-wavelength plate located between the first image-forming surface and the second image-forming surface. The half-wavelength plate includes an optical axis, is configured to be capable of transmitting incident light from either one panel of the first panel and the second panel, and of emitting light as emission light to the other panel. A polarization direction of the emission light from the half-wavelength plate is determined based on a polarization direction of the incident light on the half-wavelength plate and a direction of the optical axis.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 3, 2023
    Assignee: KYOCERA Corporation
    Inventors: Kaoru Kusafuka, Mitsuhiro Murata