Patents Examined by Phu Vu
  • Patent number: 11604373
    Abstract: The invention relates to an electrically controllable viewing angle switch device and a display apparatus. The switch device includes a first substrate, a second substrate, a liquid crystal layer, spacers, a first alignment film, a second alignment film, a first polarizer, and a second polarizer and has a light transmission region. The second substrate is disposed opposite to the first substrate. The liquid crystal layer and the spacers are located between the first substrate and the second substrate in the light transmission region. The spacers are fixed on the first or second substrate. The first polarizer and the second polarizer are disposed on opposite sides of the liquid crystal layer. The axial directions of the transmission axis of the first polarizer and the transmission axis of the second polarizer are parallel or perpendicular to the alignment direction of the first alignment film and the second alignment film.
    Type: Grant
    Filed: April 21, 2021
    Date of Patent: March 14, 2023
    Assignee: Coretronic Corporation
    Inventors: Yang-Ching Lin, Chung-Yang Fang, Ping-Yen Chen
  • Patent number: 11579489
    Abstract: A display apparatus includes a liquid crystal panel, a light source configured to provide light to the liquid crystal panel, and an optical member disposed between the liquid crystal panel and the light source. The optical member includes a diffuser sheet that is configured to diffuse the light from the light source, and a deformation preventing layer including a first material having a lower expansion or contraction rate than the diffuser sheet.
    Type: Grant
    Filed: March 11, 2021
    Date of Patent: February 14, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Naewon Jang, Daeyoung Kim, Byoungjin Cho, Kilhong Lee
  • Patent number: 11579484
    Abstract: The present specification relates to a film for compensating for a viewing angle, which comprises a base substrate; a pattern layer; and an optical layer, and in which the pattern layer has a first surface comprising a flat surface and a second surface facing the first surface, and the second surface comprises a plurality of protrusions comprising a curved surface, thereby improving a contrast ratio and a viewing angle and decreasing a color band phenomenon, and a polarizing plate comprising the same, and a display device comprising the same.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: February 14, 2023
    Inventors: Sunghak Bae, Sangcholl Han, Byung Mook Kim, Dae Hee Lee, Youngjin Kim
  • Patent number: 11573464
    Abstract: In a display device having high reliability, even if being a narrow framing type, and a method for manufacturing thereof, having a display panel, being made up with a first substrate 101 and a second substrate 201, which are adhered with using a seal 301, a main SOC 302 is disposed like a wall, on a peripheral end portion of the first substrate 101 and the second substrate 201, and the seal 301 is disposed inwardly of the main SOC 302. Also, in a method for manufacturing thereof, the main SOC 302 is formed in a region including a cutting plane between the display panel regions neighboring with, and on the cutting plane is made the cutting thereof.
    Type: Grant
    Filed: April 12, 2022
    Date of Patent: February 7, 2023
    Assignee: Japan Display Inc.
    Inventor: Eisuke Hatakeyama
  • Patent number: 11573442
    Abstract: The present disclosure relates to a module structure of a liquid crystal display, the module structure includes a panel glass assembly, a backlight assembly and a display housing retaining wall; an accommodating space formed by the display housing retaining wall accommodates the panel glass assembly and the backlight assembly; the panel glass assembly includes a front glass sheet, a rear glass sheet and a sealant for sealing a liquid crystal accommodating space between the front glass sheet and the rear glass sheet. The module structure is characterized in that, a filling gap is provided between outer peripheral surfaces of the front glass sheet and the rear glass sheet of the panel glass assembly and an inner peripheral surface of the display housing retaining wall facing the outer peripheral surfaces; and a panel edge protective adhesive is filled in the filling gap. The present disclosure also relates to a manufacturing process of the module structure.
    Type: Grant
    Filed: July 9, 2021
    Date of Patent: February 7, 2023
    Assignee: Schneider Electric Industries SAS
    Inventors: Weihe Fei, Zhaocai Wang
  • Patent number: 11573457
    Abstract: The present disclosure relates to an array substrate comprising a substrate body provided, on a perimeter edge thereof, with a sealant coating region to be coated with a sealant, and the sealant coating region comprises a first region provided with a metal trace structure, and further comprises a region provided with a metal structure, a difference between an area of the metal structure and that of the metal trace structure being smaller than a threshold.
    Type: Grant
    Filed: February 27, 2020
    Date of Patent: February 7, 2023
    Assignee: BOE TECHNOLOGY GROUP CO., LTD.
    Inventors: Chunping Long, Hui Li
  • Patent number: 11561426
    Abstract: The present application provides an optical film. By controlling transmittance of a liquid crystal layer comprising a radical initiator for the maximum absorption wavelength of the radical initiator, the present application can provide an optical film having a liquid crystal layer having excellent resistance to external stimuli and excellent optical properties. Such an optical film can have various forms and can be used in various fields.
    Type: Grant
    Filed: July 26, 2019
    Date of Patent: January 24, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jae Hong Park, Hyung Il Yang, Kee Young Lee, Keon Woo Kim, Sang Jo Bae, Woo Yong Cho, Sung Yoon Lee, Kyung Gu Lee
  • Patent number: 11556029
    Abstract: According to one embodiment, a display device includes a display panel including a first substrate including a first transparent substrate having a first main surface, a first opposite and a side surface, a second substrate including a second transparent substrate having a second main surface and a second opposite surface, and a liquid crystal layer located between the first substrate and the second substrate, a light emitting element opposed to the side surface, a third transparent substrate, and a transparent layer located between the display panel and the third transparent substrate and having a second refractive index that is lower than a first refractive index.
    Type: Grant
    Filed: March 23, 2022
    Date of Patent: January 17, 2023
    Assignee: Japan Display Inc.
    Inventor: Yudai Numata
  • Patent number: 11550184
    Abstract: The polarizing plate laminate according to an exemplary embodiment of the present disclosure includes: a polarizer; an adhesive agent layer or a bonding agent layer provided on the polarizer; a viewing angle compensation film provided on the adhesive agent layer or the bonding agent layer; and a base film provided on the viewing angle compensation film.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: January 10, 2023
    Assignee: LG Chem, Ltd.
    Inventors: Youngjin Kim, Kyun Do Park, Do Hyun Kim, Dae Hee Lee, Sunghak Bae, Han Min Seo
  • Patent number: 11550096
    Abstract: A transparent display module and a display device are provided. The transparent display module includes a first transparent substrate and a second transparent substrate that are arranged opposite to each other, a transparent display panel and a light source. The transparent display panel is arranged between the first transparent substrate and the second transparent substrate. The light guide plate is arranged between the transparent display panel and the second transparent substrate. The light source is arranged between the transparent display panel and the second transparent substrate, and the light source is located on the side of the light guide plate.
    Type: Grant
    Filed: July 13, 2020
    Date of Patent: January 10, 2023
    Assignees: Beijing BOE Optoelectronics Technology Co., Ltd., Beijing BOE Technology Development Co., Ltd.
    Inventors: Shouyang Leng, Rui Han, Zeyuan Tong, Qing Ma, Dong Cui, Zhipeng Zhang, Bin Long, Wenyang Li, Zan Zhang, Yue Zhai, Dong Guan, Weining Chi, Fengping Wang
  • Patent number: 11543718
    Abstract: To suppress a variation in characteristics of a transistor due to a released gas from an organic insulating film so that reliability of a display device is increased. The display device includes a transistor, an organic insulating film which is provided over the transistor in order to reduce unevenness due to the transistor, and a capacitor over the organic insulating film. An entire surface of the organic insulating film is not covered with components (a transparent conductive layer and an inorganic insulating film) of the capacitor, and a released gas from the organic insulating film can be released to the outside from exposed part of an upper surface of the organic insulating film.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: January 3, 2023
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Masatoshi Yokoyama, Shigeki Komori, Manabu Sato, Kenichi Okazaki, Shunpei Yamazaki
  • Patent number: 11543581
    Abstract: A liquid crystal display device includes a LCD panel having a first polarizer, a first substrate, a second substrate and a second polarizer are sequentially provided from a front surface side, a frame which surrounds the LCD panel and has a first opening having first to fourth sides, a planar light source disposed on the rear surface side of the LCD panel in the first opening, a plurality of optical sheet groups which are disposed between the planar light source and the LCD panel, and an adhesive layer which has a second opening formed along the first to fourth sides of the frame. A front surface side of the adhesive layer is adhered to the LCD panel along at least the first side, and a rear surface side of the adhesive layer is adhered to the plurality of optical sheet groups and the frame along at least the first side.
    Type: Grant
    Filed: March 28, 2022
    Date of Patent: January 3, 2023
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventor: Eiji Oohira
  • Patent number: 11543690
    Abstract: A display device is disclosed. The display device includes a display panel, a frame located at the rear of the display panel, an optical plate located between the frame and the display panel, a guide panel coupled to the frame, the guide panel being configured to support the optical plate, the guide panel being configured to provide a space between the optical plate and the frame, and a light source and a substrate configured to provide light to the optical plate in the space, wherein the display panel includes an active area configured to display an image and an inactive area configured not to display an image, the display panel is coupled to the optical plate via a first adhesive member, and the optical plate is fixed to the guide panel via a second adhesive member.
    Type: Grant
    Filed: October 23, 2020
    Date of Patent: January 3, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Sangmin Baek, Kitae Keum, Juyoung Joung
  • Patent number: 11543701
    Abstract: The present application relates to a lightness adjusting method for a display system. The method includes the steps of: writing a first driving signal into a display panel; controlling a first lens and a backlight module to be turned on simultaneously, where a plurality of light-emitting elements of the backlight module are turned on simultaneously, and the first lens and the plurality of light-emitting elements of the backlight module are turned on simultaneously; adjusting a first turn-on time of each light-emitting element; controlling a second lens and the backlight module to be turned on simultaneously, where the plurality of light-emitting elements of the backlight module are turned on simultaneously, and the second lens and the plurality of light-emitting elements of the backlight module are turned on simultaneously; and adjusting a second turn-on time of each light-emitting element.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 3, 2023
    Assignee: HKC CORPORATION LIMITED
    Inventor: Chih Tsung Kang
  • Patent number: 11543726
    Abstract: According to one embodiment, a display device including an insulating substrate, an organic film on the insulating substrate, and a switching element located between the insulating substrate and the organic film and including a semiconductor layer, a source electrode, and a drain electrode, the organic film including a first removed portion at a position overlapping the semiconductor layer between the source electrode and the drain electrode of the switching element.
    Type: Grant
    Filed: July 31, 2020
    Date of Patent: January 3, 2023
    Assignee: Japan Display Inc.
    Inventor: Yuki Yokotani
  • Patent number: 11536885
    Abstract: According to one embodiment, a display device includes a display panel configured to emit display light of linearly polarized light, a first semi-transparent element transmitting first circularly polarized light and reflecting second circularly polarized light, a first retardation film, a second semi-transparent element reflecting the first circularly polarized light and transmitting the second circularly polarized light, a second retardation film having a refractive anisotropy in which refractive indexes of directions orthogonal to each other in a plane are substantially equivalent to each other and a refractive index in a normal is different from a refractive index in a plane, and a first element having a lens action of condensing the second circularly polarized light.
    Type: Grant
    Filed: October 11, 2021
    Date of Patent: December 27, 2022
    Assignee: Japan Display Inc.
    Inventors: Shinichi Komura, Junji Kobashi, Koichi Okuda, Ken Onoda, Hiroaki Kijima
  • Patent number: 11536996
    Abstract: A display device is provided. The display device has a display side and includes: a first substrate and a second substrate. The first substrate has a first surface and a second surface, wherein the first surface is closer to the display side than the second surface. The second substrate is disposed opposite the first substrate. The second surface is located between the first surface and the second substrate, and the area of the first substrate is greater than the area of the second substrate in a top view direction. The first substrate has a side surface, and the side surface includes a chamfered structure.
    Type: Grant
    Filed: September 15, 2020
    Date of Patent: December 27, 2022
    Assignee: INNOLUX CORPORATION
    Inventors: Cheng-Hsia Kuo, Chia-Wei Yen
  • Patent number: 11531149
    Abstract: An optical (1a) includes a light-absorbing layer (10). The light-absorbing layer absorbs light in at least a portion of the near-infrared region. When light with a wavelength of 300 to 1200 nm is incident on the optical filter (1a) at an incident angle of 0°, the optical filter (1a) satisfies given spectral transmittance requirements. When an average of absolute values of differences each between a value of a normalized spectral transmittance for an incident angle x° and a value of a normalized spectral transmittance for an incident angle y° in the wavelength range of W nm to V nm (W<V) is expressed as ?TSx/yW-V, the optical filter (1a) satisfies requirements ?TS0/40380-530?3%, ?TS0/40450-650?3%, and ?TS0/40530-750?3%.
    Type: Grant
    Filed: December 5, 2018
    Date of Patent: December 20, 2022
    Assignee: Nippon Sheet Glass Company, Limited
    Inventors: Tomitaka Takagi, Katsuhide Shimmo
  • Patent number: 11527208
    Abstract: It is an object to decrease the number of transistors connected to a capacitor. In a structure, a capacitor and one transistor are included, one electrode of the capacitor is connected to a wiring, and the other electrode of the capacitor is connected to a gate of the transistor. Since a clock signal is input to the wiring, the clock signal is input to the gate of the transistor through the capacitor. Then, on/off of the transistor is controlled by a signal which synchronizes with the clock signal, so that a period when the transistor is on and a period when the transistor is off are repeated. In this manner, deterioration of the transistor can be suppressed.
    Type: Grant
    Filed: February 7, 2022
    Date of Patent: December 13, 2022
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Atsushi Umezaki
  • Patent number: 11526059
    Abstract: An array substrate and a liquid crystal display panel are provided. The array substrate includes data lines, scanning lines, common electrode lines, and pixels. Wherein, first areas corresponding to and adjacent to the data lines, second areas corresponding to and adjacent to the scanning lines, third areas corresponding to the common electrode lines, and fourth areas between adjacent rows of the pixels are provided with shield electrodes, and a disposition density of the shield electrodes corresponding to first sub-pixels is less than a disposition density of the shield electrodes corresponding to third sub-pixels. The present disclosure reduces dark-state light leakage phenomenon.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: December 13, 2022
    Assignee: Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
    Inventor: Wu Cao