Patents Assigned to Japan Display Inc.
  • Publication number: 20220252947
    Abstract: According to one embodiment, an electronic device includes a first camera, a first polarizer, a second polarizer, and a liquid crystal panel disposed between the first polarizer and the second polarizer. The liquid crystal panel includes a first scanning line, a first signal line intersecting the first scanning line, a first switching element electrically connected to the first scanning line and the first signal line, and a first control electrode electrically connected to the first switching element. The first control electrode overlaps the first camera, and is disposed in an annular first region.
    Type: Application
    Filed: May 2, 2022
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventors: Yoshiro Aoki, Hiroyuki Kimura
  • Publication number: 20220252944
    Abstract: According to one embodiment, a display device includes a first substrate with a first alignment film, a second substrate with a second alignment film, and a liquid crystal layer interposed therebetween. The first substrate has first and second electrodes. An initial alignment direction of liquid crystal molecules of the liquid crystal layer is parallel to a first direction or a direction orthogonal to the first direction. The second electrode includes comblike electrodes extending parallel to the first direction and a connecting portion which connects the comblike electrodes. The connecting portion includes a projection which projects in a second direction more than an outermost comblike electrode.
    Type: Application
    Filed: April 25, 2022
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventor: Toshiharu MATSUSHIMA
  • Publication number: 20220255024
    Abstract: In a display device including a flexible display panel, the risk of disconnection of a wiring due to bending is reduced. A display panel includes display function layer including display elements and a wiring on one major surface of a base material having flexibility. The display panel includes, on the one major surface of the base material, an organic-film-covered wiring area where the surface of the wiring is covered with an organic planarization film that is an organic insulating film in direct contact with the wiring. The display panel includes, in the plane thereof, a display area where the display elements are arranged and a component mounting area that is a peripheral area located outside the display area. As the organic-film-covered wiring area, a curved area is provided in the peripheral area.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventor: Masumi NISHIMURA
  • Publication number: 20220252951
    Abstract: According to one embodiment, a viewing angle control element includes a first substrate, a second substrate, and an electrolyte layer. The first substrate includes a first transparent substrate, a first light-shielding portion and a second light-shielding portion provided between the first transparent substrate and the electrolyte layer, a first transparent insulating layer provided between the first light-shielding portion and the second light-shielding portion, and a first transparent electrode. The first transparent electrode includes a first electrode portion overlapping the first light-shielding portion, a second electrode portion overlapping the second light-shielding portion, and an opening portion overlapping the first transparent insulating layer.
    Type: Application
    Filed: April 28, 2022
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventors: Masaaki KABE, Jin HIROSAWA
  • Publication number: 20220253111
    Abstract: An electronic device includes a substrate having a first surface and a second surface opposite the first surface and including an input terminal part on the first surface, a wiring substrate having a flexibility connected to the input terminal part, and an electronic component on the second surface of the substrate. The wiring substrate has an opening through the wiring substrate, and the opening overlaps with the electronic component when the wiring substrate is bent to a side of the second surface of the substrate.
    Type: Application
    Filed: April 26, 2022
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventors: Keisuke ASADA, Hideaki ABE, Kota UOGISHI, Kazuyuki YAMADA
  • Publication number: 20220250014
    Abstract: According to one embodiment, a liquid crystal display device includes an array substrate, a counter-substrate, a negative liquid crystal layer including liquid crystal molecules, a retardation film attached to a surface of the array substrate, a first polarizer attached to the retardation film and having a first absorption axis, a second polarizer attached to a surface of the counter-substrate, and having a second absorption axis which is parallel to a direction of initial alignment of the liquid crystal molecules and perpendicular to the first absorption axis, a cover member located opposite to the second polarizer, and ultraviolet curing resin which bonds the second polarizer and the cover member to each other.
    Type: Application
    Filed: March 25, 2022
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventor: Keiji TAGO
  • Publication number: 20220252934
    Abstract: The purpose of the present invention is to realize a lighting device of thin, low power consumption and small light distribution angle. The present invention takes the following structure to realize the above task: A lighting device comprising: a disc shaped light guide, having a main surface and a rear surface, including a first hole at a center, a disc shaped reflection sheet, disposed at the rear surface side of the light guide, including a second hole at a center, a prism sheet, disposed at the main surface side of the light guide, including a concentric first prism array, wherein a reflection mirror is set in the first hole of the light guide at the side near to the prism sheet, an LED is set opposing to the reflection mirror.
    Type: Application
    Filed: March 1, 2022
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventors: Makoto HASEGAWA, Nobuyuki SUZUKI, Masafumi OKADA
  • Publication number: 20220253167
    Abstract: A touch detecting system includes a detection panel that generates a detection signal based on a received transmitter signal and an object placed in proximity to a detection panel. The detection signal includes information about the object. A receiver circuit receives the detection signal and includes a control circuit that determines, each time a transmitter start signal becomes active, a delay time to add when generating an adaptive control signal. The transmitter start signal indicates a start of operation of the transmitter signal. A mixer circuit receives the detection signal and the adaptive control signal, and outputs a demodulated detection signal based on the detection signal and the adaptive control signal. An output circuit receives the demodulated detection signal and outputs an output detection signal that includes the information about the object placed in proximity to the detection panel.
    Type: Application
    Filed: February 8, 2021
    Publication date: August 11, 2022
    Applicant: Japan Display Inc.
    Inventor: Chung-Kai CHEN
  • Patent number: 11409398
    Abstract: An input device is provided and includes substrate; first metal mesh shape electrodes provided on layer of substrate; second metal mesh shape electrodes provided on same layer of the substrate as first metal mesh shape electrodes; second metal connection electrodes each of which connects adjacent two of second metal mesh shape electrodes on same layer as first metal mesh shape electrodes; insulating film covering second metal connection electrodes; first transparent connection electrodes each of which connects adjacent two of first metal mesh shape electrodes on insulating film; and protective film covering first metal mesh shape electrodes, second metal mesh shape electrodes, and first transparent connection electrodes.
    Type: Grant
    Filed: September 1, 2020
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Hayato Kurasawa, Hiroshi Mizuhashi
  • Patent number: 11409392
    Abstract: Included are a first cover base including an alkali glass layer, a first alkali-free glass layer provided on one face of the alkali glass layer, and a second alkali-free glass layer provided on another face of the alkali glass layer and a sensor that is provided on the first alkali-free glass layer of the first cover base and includes a plurality of first electrodes configured to detect the unevenness of a surface of an object to be detected that comes into contact with or close to the first cover base and a switching element. At least the first electrodes are formed above the first alkali-free glass layer and in a transmissive area that passes an image.
    Type: Grant
    Filed: May 11, 2021
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Shoji Hinata, Toshinori Uehara, Hiroshi Mizuhashi, Yuji Suzuki, Yasuhiro Kanaya
  • Patent number: 11410976
    Abstract: A display device includes a substrate, a first pixel region including a first light emitting element group over the substrate, a second pixel region including a second light emitting element group over the substrate and adjacent to the first light emitting element group, and a partition wall between the first light emitting element group and the second light emitting element. A height of the partition wall is larger than heights of a plurality of emitting elements included in each of the first light emitting element group and the second light emitting element group.
    Type: Grant
    Filed: August 6, 2020
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventor: Hideaki Abe
  • Patent number: 11409167
    Abstract: According to one embodiment, a liquid crystal display comprising a first substrate, a second substrate opposed the first substrate, a liquid crystal layer between the first substrate and the second substrate, a light-shielding layer including a first light-shield formed along a first direction and a second light-shield formed along a second direction and crossing the first light-shield, and a spacer which maintains a gap between the first substrate and the second substrate, the spacer overlapping a crossing region where the first light-shield and the second light-shield cross each other and including an exposed region outside the light-shielding layer in a planar view.
    Type: Grant
    Filed: May 7, 2021
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventor: Masaya Tamaki
  • Patent number: 11409165
    Abstract: A liquid crystal display device includes: a TFT substrate formed with an alignment film on a pixel; a counter substrate disposed opposite to the TFT substrate and formed with an alignment film on a top surface on the TFT substrate side; and a liquid crystal sandwiched between the TFT substrate and the counter substrate. In the liquid crystal display device, the alignment film is configured of a first alignment film layer contacting the liquid crystal layer and having at least one kind of polyimide and a second alignment film layer formed below the first alignment film layer and having at least one kind of polyimide, the first alignment film layer is a material that is enabled to provide liquid crystal alignment regulating force by applying polarized light, and the first alignment film layer and the second alignment film layer contain a common polyimide structure.
    Type: Grant
    Filed: July 22, 2020
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventor: Yasuo Imanishi
  • Patent number: 11408766
    Abstract: According to an aspect, a detection device includes: a substrate; a plurality of photodiodes arranged on the substrate; a protective film that covers the photodiodes; a plurality of lenses provided so as to overlap the respective photodiodes; a first light-blocking layer that is provided between the photodiodes and the lenses and is provided with first openings in regions overlapping the respective photodiodes; and a second light-blocking layer that is provided between the first light-blocking layer and the lenses and is provided with second openings in regions overlapping the respective photodiodes and the respective first openings. The first light-blocking layer is provided with slits in regions overlapping gaps between the photodiodes adjacent to each other, and the second light-blocking layer is provided so as to be continuous across the photodiodes adjacent to each other and is provided so as to overlap the slits.
    Type: Grant
    Filed: July 29, 2021
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventor: Keiji Tago
  • Patent number: 11409145
    Abstract: According to one embodiment, a display device includes a first substrate including a first resin substrate having a first thermal expansion coefficient, and a first barrier layer having a second thermal expansion coefficient which is lower than the first thermal expansion coefficient, a second substrate including a second resin substrate having a third thermal expansion coefficient which is equal to the first thermal expansion coefficient, and a second barrier layer having a fourth thermal expansion coefficient which is lower than the third thermal expansion coefficient and is equal to the first thermal expansion coefficient, and a display element located between the first resin substrate and the second resin substrate.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventors: Arichika Ishida, Yasushi Kawata
  • Patent number: 11409399
    Abstract: There are provided a display panel with a touch detector that allows the touch detection electrodes to be less visible, a touch panel, and an electronic unit having the display panel with a touch detector. The display panel with a touch detector includes: a display layer including a plurality of display elements arranged side by side; and an electrode layer alternately segmented into first regions and second regions along a first direction, the electrode layer including a plurality of first slits arranged side by side to extend in a second direction, and a plurality of second slits each allowing an adjacent pair of the plurality of first slits in the second regions to be in communication with one another.
    Type: Grant
    Filed: December 14, 2020
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventors: Koji Ishizaki, Koji Noguchi, Masanobu Ikeda, Yasuyuki Matsui
  • Patent number: 11410451
    Abstract: A display panel including a display function layer displaying an image in a display area, a cover member including a first face and a second face disposed on an opposite side of the first face and faces the display panel, and a fingerprint sensor including a plurality of first detection electrodes disposed in a sensor base and configured to detect unevenness of an object brought into contact with or approaching the first face of the cover member, a shield electrode disposed to face the plurality of first detection electrodes and configured to suppress a change in capacitance between the first detection electrodes and the shield electrode, and switching elements disposed in correspondence with the first detection electrodes, the fingerprint sensor being arranged between the cover member and the display panel and arranged to overlap with the display area when viewed in a direction perpendicular to the first face are included.
    Type: Grant
    Filed: October 22, 2020
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventors: Toshinori Uehara, Yoshitoshi Kida, Hiroshi Mizuhashi, Hayato Kurasawa, Yuji Suzuki, Shoji Hinata, Toshiya Yamazaki
  • Patent number: 11410595
    Abstract: According to one embodiment, a display device includes a display area and a driver. Each of pixels includes a light emitting element and a drive transistor connected in series. An image signal includes a first luminance data and a second luminance data. The first luminance data is based on an average value of a gradation value of pixels, and is common among the pixels included in said one area. The second luminance data is, based on a difference between the gradation value and the average value, an independent luminance data of each of the pixels. The driver controls a common luminance time of the pixels based on the first luminance data, and controls a current value to be supplied to the luminance element of each of the pixels based on the second luminance data.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: August 9, 2022
    Assignee: Japan Display Inc.
    Inventors: Tetsuo Morita, Yasuhiro Ogawa
  • Publication number: 20220244589
    Abstract: According to one embodiment, an electronic apparatus includes a first liquid crystal panel, a second liquid crystal panel, a camera overlapping the first liquid crystal panel and the second liquid crystal panel and receiving light via the first liquid crystal panel and the second liquid crystal panel. The first liquid crystal panel includes a first liquid crystal layer, a first pixel electrode not overlapping the camera, and a second pixel electrode overlapping the camera. The second liquid crystal panel includes first transparent electrodes overlapping the camera, a second transparent electrode overlapping the first transparent electrodes, and a second liquid crystal layer disposed between the first transparent electrodes and the second transparent electrode.
    Type: Application
    Filed: April 12, 2022
    Publication date: August 4, 2022
    Applicant: Japan Display Inc.
    Inventor: Takeo KOITO
  • Publication number: 20220246764
    Abstract: The present invention addresses the problem of: realizing a TFT that uses an oxide semiconductor and that is capable of maintaining stable characteristics even in the case where the TFT is miniaturized; and realizing a display device that has high-definition pixels using such a TFT. To solve this problem, the present invention has the following configuration. A semiconductor device including an oxide semiconductor TFT formed using an oxide semiconductor film 109, the semiconductor device being characterized in that: the channel length of the oxide semiconductor TFT is 1.3 to 2.3 ?m; and the sheet resistance of a source region 1092 and a drain region 1091 of the oxide semiconductor film 109 is 1.4 to 20 K?/?.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Applicant: Japan Display Inc.
    Inventors: Isao SUZUMURA, Hajime WATAKABE, Akihiro HANADA, Ryo ONODERA, Tomoyuki ITO