Patents Assigned to Japan Display Inc.
  • Publication number: 20210225897
    Abstract: According to one embodiment, a display device includes first semiconductor layers crossing a first scanning line in a non-display area, the first semiconductor layers being a in number, second semiconductor layers crossing a second scanning line in the non-display area, the second semiconductor layers being b in number, and an insulating film disposed between the first and second semiconductor layers and the first and second scanning lines, wherein a and b are integers greater than or equal to 2, and a is different from b, and the first and second semiconductor layers are both entirely covered with the insulating film.
    Type: Application
    Filed: April 2, 2021
    Publication date: July 22, 2021
    Applicant: Japan Display Inc.
    Inventor: Masato NAKAMURA
  • Publication number: 20210223465
    Abstract: According to one embodiment, a display device includes a first transparent substrate including a first main surface, a second transparent substrate including a first end portion, a liquid crystal layer containing strip-shaped polymers and liquid crystal molecules, a third transparent substrate including a second end portion and a second main surface, a first light-emitting element and a first light guide. The first light guide includes a first surface and a second surface. A height from the first main surface to the second surface is less than a height from the first main surface to the second main surface.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Japan Display Inc.
    Inventors: Yudai NUMATA, Kentaro OKUYAMA
  • Publication number: 20210223897
    Abstract: According to an aspect, a display device with a sensor includes: a substrate including a display region and a peripheral region on a periphery of the display region; detection electrodes arranged in a row-column configuration in the display region; and detection lines coupled to the respective detection electrodes. A shape of the substrate in a plan view includes a curve of a curved portion. The detection electrodes include a first electrode and a second electrode having a shape different from that of the first electrode in a plan view. The second electrode is juxtaposed with the curved portion. The detection lines each include a first line coupled to the first electrode and a second line coupled to the second electrode. The second line passes from the display region across the peripheral region and extends to a position overlapping with the second electrode in a plan view.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Japan Display Inc.
    Inventors: Hiroyuki ABE, Yoshinori AOKI, Kazune MATSUMURA, Masateru MORIMOTO
  • Publication number: 20210223597
    Abstract: According to one embodiment, a display device includes a display panel including a first substrate, and a wiring board mounted on a mounting portion of the first substrate. The display panel includes a first terminal and a second terminal located in the mounting portion, a first alignment mark located in the mounting portion and located between the first terminal and the second terminal, a first wiring line connected to the first terminal, and a second wiring line connected to the second terminal. The wiring board includes a first connection wiring line connected to the first terminal, a second connection wiring line connected to the second terminal, and a second alignment mark located between the first connection wiring line and the second connection wiring line.
    Type: Application
    Filed: March 18, 2021
    Publication date: July 22, 2021
    Applicant: Japan Display Inc.
    Inventor: Yasushi NAKANO
  • Publication number: 20210223603
    Abstract: According to one embodiment, a display device includes a first substrate including an electrode, a second substrate overlaid on the first substrate, an optical sheet overlaid on the second substrate, a conductive member located between the second substrate and the optical sheet, and a connecting member making electric connection between the conductive member and the electrode. The first substrate includes a first region overlaid on the second substrate, and a second region extending more than the second substrate and including the electrode. The second substrate includes a substrate end portion located on a boundary between the first region and the second region and extending along a first direction. The connecting member is in contact with the electrode and the conductive member.
    Type: Application
    Filed: January 12, 2021
    Publication date: July 22, 2021
    Applicant: Japan Display Inc.
    Inventor: Yasushi NAKANO
  • Publication number: 20210223608
    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: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Japan Display Inc.
    Inventor: Yudai NUMATA
  • Publication number: 20210223615
    Abstract: A light shielding layer overlapping with a peripheral region of a display device includes extension portions each extending along a Y direction, bent portions located between the extension portions, and another extension portion located between the bent portions. In a region overlapping with the another extension portion, an enable line (first potential supply line), which supplies a potential to a plurality of scanning signal lines via a driving circuit (first driving circuit), goes through a wiring layer (first wiring layer) and another wiring layer (second wiring layer) made of a material having resistivity lower than that of the wiring layer.
    Type: Application
    Filed: April 5, 2021
    Publication date: July 22, 2021
    Applicant: Japan Display Inc.
    Inventor: Tadayoshi KATSUTA
  • Patent number: 11068095
    Abstract: According to an aspect, a touch detection device includes: a plurality of drive electrodes arranged in parallel with each other; and a plurality of first touch detection electrodes arranged in parallel with each other and arranged at a portion not in contact with the drive electrodes and where the first touch detection electrode forms capacitance with a drive electrode to which a drive signal is output. The drive electrodes includes a drive electrode including a plurality of subdivided electrodes an arrangement pitch of which is finer than an arrangement pitch of the drive electrodes. The drive electrode including the subdivided electrodes is provided such that switching is enabled between a first mode in which the drive signal is collectively output to the subdivided electrodes of the drive electrode and a second mode in which the drive signal is individually output to each of the subdivided electrodes of the drive electrode.
    Type: Grant
    Filed: February 3, 2020
    Date of Patent: July 20, 2021
    Assignee: Japan Display Inc.
    Inventor: Koji Noguchi
  • Patent number: 11068098
    Abstract: A proximity detection device is provided and includes detection electrodes including a pair of extending portions that extends in a first direction; and a pair of connector portions that extends in a second direction intersecting the first direction, each of the pair of connector portions electrically connecting an end of one of the pair of extending portions to an end of the other one of the pair of extending portions, and a first dummy pattern portion surrounded by the pair of extending portions and the pair of connector portions, wherein the extending portions has a slit of bending lines having a slit bending angle, wherein the first dummy pattern portion is divided by first gaps of bending lines having a first bending angle, and wherein the slit bending angle and the first bending angle are the same.
    Type: Grant
    Filed: April 20, 2020
    Date of Patent: July 20, 2021
    Assignee: Japan Display Inc.
    Inventor: Koichiro Adachi
  • Patent number: 11068097
    Abstract: A display device including a substrate, a plurality of pixel electrodes arranged in a form of a matrix in a plane parallel with the substrate, a display functional layer exerting an image display function on a basis of an image signal supplied to the plurality of pixel electrodes, a driving electrode opposed to the plurality of pixel electrodes, and a plurality of detecting electrodes arranged in a form of a plane opposed to the driving electrode, separated and arranged at a pitch of a natural number multiple of an arrangement pitch of the pixel electrodes in one direction in the arrangement plane, and each capacitively coupled with the driving electrode.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: July 20, 2021
    Assignee: JAPAN DISPLAY INC.
    Inventors: Koji Ishizaki, Kouji Noguchi
  • Patent number: 11068107
    Abstract: A display device comprising: a plurality of pixel electrodes supplied with a pixel signal and a display functional layer configured to perform a display operation based on the pixel signal; a plurality of touch detection electrodes configured to output a touch detection signal and perform a touch detection operation; and a controller configured to control the display operation and the touch detection operation.
    Type: Grant
    Filed: March 16, 2020
    Date of Patent: July 20, 2021
    Assignee: Japan Display Inc.
    Inventor: Masaki Kubo
  • Patent number: 11069312
    Abstract: According to one embodiment, an electronic device includes a display panel having a plurality of pixels arranged in a matrix. Gray levels of the pixels are determined according to a gray level of a first frame, a gray level of a second frame and positions of the pixels in the matrix.
    Type: Grant
    Filed: June 8, 2020
    Date of Patent: July 20, 2021
    Assignee: Japan Display Inc.
    Inventor: Yoshihiro Watanabe
  • Patent number: 11067818
    Abstract: According to one embodiment, display device includes an optical member including a first main surface, and a second main surface on a side opposite to the first main surface, the optical member configured to form an image on a side of the second main surface with light incident from the first main surface, a reflective member including a reflective surface opposed to the first main surface, and a display portion located between the optical member and the reflective member, wherein the reflective member is arranged parallel to the optical member.
    Type: Grant
    Filed: February 27, 2019
    Date of Patent: July 20, 2021
    Assignee: Japan Display Inc.
    Inventors: Yudai Numata, Takeo Koito
  • Patent number: 11062111
    Abstract: According to an aspect, a fingerprint detection device includes: a substrate; a plurality of drive electrodes provided on one surface side of the substrate and arranged in a first direction; and a plurality of detection electrodes provided on the one surface side and arranged in a second direction intersecting the first direction. The detection electrodes intersect the drive electrodes in a normal direction of the substrate. Each of the detection electrodes includes: a plurality of first line portions; a plurality of second line portions extending in a direction intersecting the first line portions; and a plurality of bent portions each connecting one of the first line portions and one of the second line portions adjacent to the one of the first line portions to each other.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventors: Hayato Kurasawa, Yoshitaka Ozeki, Toshinori Uehara, Yuji Suzuki
  • Patent number: 11063154
    Abstract: The invention allows stable fabrication of a TFT circuit board used in a display device and having thereon an oxide semiconductor TFT. A TFT circuit board includes a TFT that includes an oxide semiconductor. The TFT has a gate insulating film formed on part of the oxide semiconductor and a gate electrode formed on the gate insulating film. A portion of the oxide semiconductor that is covered with the gate electrode 104 and a portion of the oxide semiconductor that is not covered with the gate electrode are both covered with a first interlayer insulating film. The first interlayer insulating film is covered with a first film 106, and the first film is covered with a first AlO film.
    Type: Grant
    Filed: July 13, 2017
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventors: Yohei Yamaguchi, Kazufumi Watabe, Tomoyuki Ariyoshi, Osamu Karikome, Ryohei Takaya
  • Patent number: 11062668
    Abstract: An electro-optical device includes first and second signal lines extending in first and second directions respectively on a component substrate; a pixel area disposed at a portion corresponding to an intersection of the first and second signal lines; a signal output circuit disposed outside the pixel area and outputs a driving signal to the first signal line and including circuit blocks arranged next to one another, wherein an outer peripheral edge of the pixel area has a curved or bent portion facing the signal output circuit, a first circuit block included in the circuit blocks is arranged along the curved or bent portion, and a second circuit block included in the circuit blocks and adjacent to the first circuit block is arranged so as to be displaced in the first direction from the first circuit block, and a lead-out area where the first and second circuit blocks are connected.
    Type: Grant
    Filed: June 19, 2020
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventors: Katsuya Anzai, Hideki Kawada, Hiroshi Matsuda, Yukitada Iwasaki
  • Patent number: 11061288
    Abstract: A liquid crystal display device includes a TFT substrate having a display region where pixels each having a TFT and a pixel electrode are formed in a matrix, a counter substrate having a display region where color filters of three colors are formed in a matrix, the TFT substrate and the counter substrate being bonded together with a sealing material in a seal portion at a periphery, and liquid crystal sealed between the TFT substrate and the counter substrate by the seal material. In the display region, a first insulation film, a first alignment film, a first columnar spacer, an overcoat film, a first color filter among the color filters of three colors are stacked in this order between the TFT substrate and the counter substrate.
    Type: Grant
    Filed: December 26, 2019
    Date of Patent: July 13, 2021
    Assignees: Japan Display Inc., Panasonic Liquid Crystal Display Co., Ltd.
    Inventors: Takashi Yamamoto, Tomoya Sugano, Takamitsu Kamada
  • Patent number: 11061275
    Abstract: According to one embodiment, an illumination device includes a light source module, and a reflector opposed to the light source module. The reflector includes a plurality of incidence openings on which light from the light source module is made incident, a plurality of emission openings opposed to the incidence openings, a plurality of reflective surfaces extending from the incidence openings to the emission openings, respectively, and reflective films formed on the reflective surfaces. The reflector includes a plurality of blocks, and the blocks are bonded to each other to form the reflector.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventor: Masayuki Mifune
  • Patent number: 11061506
    Abstract: A detection apparatus includes a substrate, a display area, a peripheral area, a plurality of electrodes, a plurality of terminals, a first wire, and a second wire. The display area is provided on the surface of the substrate. The peripheral area is provided outside the display area. The electrodes are provided to the display area. The terminals are provided in correspondence with the respective electrodes in the peripheral area. The first wire couples an electrode to a terminal. The second wire couples the electrode to the terminal to which the first wire is coupled.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: July 13, 2021
    Assignee: Japan Display Inc.
    Inventors: Koji Noguchi, Koji Ishizaki, Hayato Kurasawa
  • Publication number: 20210208447
    Abstract: According to one embodiment, a display device includes a display panel including a display surface and a rear surface located in an opposite side to the display surface, a support plate including a first main surface opposing the rear surface of the display panel, a second main surface located in an opposite side to the first main surface and a first opening opposing at least a central portion of the display panel, and an adhesive tape disposed on the second main surface so as to be overlaid on the first opening, and including a first adhesive region attached on the second main surface around the first opening and a second adhesive region located in the first opening and attached on the rear surface of the display panel.
    Type: Application
    Filed: March 22, 2021
    Publication date: July 8, 2021
    Applicant: Japan Display Inc.
    Inventors: Masaaki TAKUMA, Mao IZAWA, Hisanori KAWAKAMI, Susumu KIMURA