Patents Assigned to Sakai Display Products Corporation
  • Patent number: 11038155
    Abstract: A film formation apparatus according to an embodiment comprising: a substrate holder for holding a substrate in a standing position relative to the horizontal plane, the substrate having a vapor deposition surface on which a vapor deposition layer is formed; and an evaporation source to supply a vapor deposition material onto the vapor deposition surface while moving relative to the substrate holder upward and/or downward, the evaporation source being disposed in a region which the vapor deposition surface of the substrate held by the substrate holder is to face. The substrate holder is configured to hold the substrate in an inclined orientation relative to the vertical plane such that the upper end of the substrate is located away from the evaporation source. The apparatus further comprises an adjustment means for reducing a variation in the thickness of the vapor deposition layer, which results from the inclination of the substrate.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: June 15, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Hidenori Ogata, Susumu Sakio, Katsuhiko Kishimoto
  • Patent number: 11024831
    Abstract: A display apparatus comprises: a display panel to control emission or transmission of light; a support comprising a surface on which the display panel is placed; and a holding member that is adhered onto the surface and engages with an edge of the display panel to hold the display panel at a given position of the surface. The holding member comprises a front surface portion formed using a light-transmitting material to cover a display surface of the display panel and a frame portion provided, on a first surface of the front surface portion, along an edge of the front surface portion. The first surface is directed to the display surface. The front surface portion comprises a first functional layer having a given function related to propagation of light on the first surface or on a second surface opposite the first surface.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: June 1, 2021
    Assignee: Sakai Display Products Corporation
    Inventor: Katsuhiko Kishimoto
  • Patent number: 11024503
    Abstract: To provide a laser annealing device capable of performing annealing whereby electron mobility is different depending on the part, a mask, a thin film transistor, and a laser annealing method. A laser annealing device of the present invention is provided with a mask in which a plurality of openings are formed along the scanning direction, moves a substrate in the scanning direction, and irradiates the substrate with laser light via the openings. The openings respectively have first opening regions, which are aligned in the scanning direction, and which have a same shape, and some of the openings among the openings respectively have second opening regions continuous to the first opening regions in the predetermined direction with respect to the first opening regions.
    Type: Grant
    Filed: March 4, 2016
    Date of Patent: June 1, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Hidetoshi Nakagawa
  • Patent number: 11024246
    Abstract: A display apparatus is disclosed. The display apparatus according to one embodiment comprises: a display panel comprising a plurality of pixels arranged in a matrix, a plurality of scanning lines, and a plurality of data lines; a timing control unit to generate a scanning line clock signal in which a level transition is repeated; a plurality of scanning line drive units to successively output a scanning line signal based on the scanning line clock signal to the scanning lines; and a signal correcting unit to correct either one of the scanning line clock signal and the scanning line signal such that time differences between a timing of one level transition of the scanning line clock signal and a timing of a level transition of the scanning line signal based on the one level transition substantially match among the scanning line signals output by respective scanning line drive units.
    Type: Grant
    Filed: November 1, 2019
    Date of Patent: June 1, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Shuhei Haga
  • Patent number: 11024677
    Abstract: An organic-EL display apparatus comprises: a substrate comprising a first electrode; an organic layer formed of organic materials so as to form a plurality of pixels arrayed in a matrix form, the organic material being vapor-deposited on the first electrode; and a second electrode formed on the organic layer. Each of the plurality of pixels comprises at least three sub-pixels having substantially rectangular shapes; a first sub-pixel and a second sub-pixel among the at least three sub-pixels are arranged in parallel with each other such that a long side of the first sub-pixel and a long side of the second sub-pixel are substantially parallel with each other; and a third sub-pixel among the at least three sub-pixels is formed such that a long side of the third sub-pixel is substantially parallel with a short side of the first sub-pixel and a short side of the second sub-pixel.
    Type: Grant
    Filed: August 20, 2020
    Date of Patent: June 1, 2021
    Assignee: Sakai Display Products Corporation
    Inventor: Nobuo Saito
  • Patent number: 11017701
    Abstract: A correction data generating device is a device generating correction data for correcting input grayscale level vs. luminance characteristics of a plurality of pixels included in a display region of a display panel, and includes a display controller supplying each of the plurality of pixels with display signal voltages corresponding to two or more grayscale levels; an acquisition portion acquiring two or more luminances of each of the plurality of pixels supplied with the display signal voltages respectively corresponding to the two or more grayscale levels; a specification portion specifying, among the plurality of pixels, at least one abnormal pixel, the input grayscale level vs.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 25, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Junichi Sawahata
  • Patent number: 11016322
    Abstract: A method for attaching display panel comprises: preparing a frame-shaped body comprising a first rod-like member and two second rod-like members, the two second rod-like members being substantially parallel to each other and crossing the first rod-like member; bonding the first rod-like member and the two second rod-like members to a given plane surface or a given curved surface; and moving a display panel having a width to be supported between the two second rod-like members from one of the ends of two second rod-like members towards the first rod-like member along a first surface of the two second rod-like members and a second surface of the two second rod-like members, the first surface and the second surface facing each other.
    Type: Grant
    Filed: October 7, 2020
    Date of Patent: May 25, 2021
    Assignee: Sakai Display Products Corporation
    Inventor: Katsuhiko Kishimoto
  • Patent number: 11016353
    Abstract: A display apparatus includes thin-film transistors respectively provided for pixels arranged in a matrix form, one or more driving circuits provided at a side of one end of the display panel, a plurality of signal lines to each connect more than one of the plurality of thin-film transistors arranged in one line in the matrix form to the driving circuit, a plurality of spare lines formed to be connectable to any of the plurality of signal lines in an outer area of a display panel, and arranged separated from one another in an opposing region in the outer area, the opposing region being opposed to the driving circuits across the display area, and a metal pattern overlapping a first spare line and a second spare line with an insulating layer therebetween, so as to be connectable to the first spare line arranged in a first region and the second spare line arranged in a second region.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: May 25, 2021
    Assignee: Sakai Display Products Corporation
    Inventor: Hidetoshi Nakagawa
  • Patent number: 11011593
    Abstract: This organic EL display apparatus is equipped with a substrate that has a surface with a drive circuit being formed on the surface and comprising a thin film transistor, a planarizing layer that makes the surface of the substrate planar by covering the drive circuit, and an organic light-emitting element that is formed upon the surface of the planarizing layer and is electrically connected to the drive circuit. The planarizing layer includes a first inorganic insulating layer being deposited upon the drive circuit, an organic insulating layer being deposited upon the first inorganic insulating layer, and a second inorganic insulating layer being deposited upon the organic insulating layer. The surface of the second inorganic insulating layer that faces the opposite direction from the organic insulating layer has an arithmetic mean roughness of no more than 50 nm.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 18, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Katsuhiko Kishimoto
  • Patent number: 11013122
    Abstract: This electrical connection structure for wiring boards comprises: a plurality of wiring boards which are arranged along one side of a display panel and distribute electric power and/or an electric signal for driving the display panel; and a connector which is mounted on the wiring boards adjacent to each other, and electrically connects the wiring boards via a belt-like wiring material. Terminal connecting region and connector fixing region of the wiring board are configured to enable both first mounting of the connector with a direction in which the belt-like wiring material is inserted from the display panel end and second mounting of the connector with a direction in which the belt-like wiring material is inserted from an end opposite to the display panel. Thus, the present invention provides an electrical connection structure for wiring boards, in which an insertion direction of a connector can be reversed.
    Type: Grant
    Filed: January 24, 2018
    Date of Patent: May 18, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Shinichi Nakamura
  • Patent number: 11008150
    Abstract: A storage container includes: a storage portion having a rectangular bottom portion, a side wall, and a hollow region; positioning members positioning a rectangular plate-like structural body inside the hollow region; positioning members positioning a rectangular plate-like structural body inside the hollow region; and grooves formed in the storage portion, each of the grooves being formed in the inner side surface at an inner corner of the bottom surface, and two of the grooves being formed at two inner corners adjacent to each other. Each of the positioning members is detachably fitted into the storage portion into corresponding one of grooves. Each of the positioning members includes a joint member in contact with one of the grooves and a contact member detachably fitted into each other. The contact member includes an engaged portion, a contact portion, and an intervening portion integrally formed with the contact portion.
    Type: Grant
    Filed: May 18, 2016
    Date of Patent: May 18, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Kazuki Nakamichi
  • Patent number: 11008646
    Abstract: A vapor deposition apparatus disclosed by an embodiment comprises: a vacuum chamber (8); a mask holder (15) for holding a deposition mask 1; a substrate holder (29) for holding a substrate for vapor deposition (2); an electromagnet (3) disposed above a surface; a vapor deposition source 5 for vaporizing or sublimating a vapor deposition material; and a heat pipe (7) including at least a heat absorption part (71) and a heat dissipation part (72), the heat absorption part being in contact with the electromagnet (3), and the heat dissipation part being derived to an outside of the vacuum chamber (8). The heat pipe (7) and the electromagnet (3) are in intimate contact with each other at an area of a contact part between the heat pipe (7) and the electromagnet (3), the area being equal to or more than a cross-sectional area within an inner perimeter of a coil (32).
    Type: Grant
    Filed: April 21, 2020
    Date of Patent: May 18, 2021
    Assignee: Sakai Display Products Corporation
    Inventors: Susumu Sakio, Katsuhiko Kishimoto
  • Patent number: 11011735
    Abstract: In a flexible OLED device production method, after an intermediate region and flexible substrate region of a plastic film of a multilayer stack are divided, the interface between the flexible substrate region and glass base is irradiated with laser light. The multilayer stack is separated into first and second portions while the multilayer stack is kept in contact with the stage. The first portion includes a plurality of OLED devices in contact with the stage. The OLED devices include a plurality of functional layer regions and the flexible substrate region. The second portion includes the glass base and intermediate region. The laser light is formed from a plurality of arranged laser light sources and irradiation intensity for at least part of the interface between the intermediate region and the glass base is lower than the irradiation intensity for the interface between the flexible substrate region and the glass base.
    Type: Grant
    Filed: January 21, 2020
    Date of Patent: May 18, 2021
    Assignee: Sakai Display Products Corporation
    Inventors: Katsuhiko Kishimoto, Kohichi Tanaka
  • Patent number: 11005082
    Abstract: An organic EL light-emitting element is provided in which, by means of an organic material that is a oligomer with a molecular weight of 300-5000, an organic layer coated film 25 is formed in a high-definition pixel pattern in the openings 23a of insulation banks 23 that are formed with a hydrophilic material; a manufacturing method of said organic EL light-emitting element is also provided. The coated film 25 is formed by dropwise injection of a liquid composition containing an organic material oligomer.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: May 11, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Yukiya Nishioka
  • Patent number: 11004682
    Abstract: Provided are a laser annealing apparatus, a laser annealing method, and a mask with which scan nonuniformity can be decreased. According to the present invention, all or some openings of a plurality of openings are configured so that a partial subregion of a prescribed region is irradiated with laser light. The plurality of openings are configured so that, between prescribed regions irradiated with laser light via a group of openings in one row arranged in a row direction and prescribed regions irradiated with laser light via a group of openings in another row arranged in the row direction, the number of times of laser light radiations in subregions having the same occupying region is the same, and at least two openings of a group of openings arranged in a column direction have different positions or shapes.
    Type: Grant
    Filed: December 15, 2016
    Date of Patent: May 11, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Yoshiaki Matsushima, Takeshi Uno, Yuta Sugawara, Kota Imanishi, Nobutake Nodera, Takao Matsumoto
  • Patent number: 11003004
    Abstract: A method for attaching display panel comprises: preparing a frame-shaped body comprising a first rod-like member and two second rod-like members, the two second rod-like members being substantially parallel to each other and crossing the first rod-like member; bonding the first rod-like member and the two second rod-like members to a given plane surface or a given curved surface; and moving a display panel having a width to be supported between the two second rod-like members from one of the ends of two second rod-like members towards the first rod-like member along a first surface of the two second rod-like members and a second surface of the two second rod-like members, the first surface and the second surface facing each other.
    Type: Grant
    Filed: August 21, 2020
    Date of Patent: May 11, 2021
    Assignee: Sakai Display Products Corporation
    Inventor: Katsuhiko Kishimoto
  • Patent number: 11005084
    Abstract: A method for manufacturing display apparatus comprises: forming a display panel by forming a plurality of display elements on a substrate having flexibility; providing a holding member at a part of or the entire of an outer edge of the display panel along the outer edge, the holding member engaging with an outer periphery of the display panel; preparing a supporting member having a surface on which the substrate of the display panel is to be placed; placing the substrate on the surface of the supporting member; bonding the holding member to the surface of the supporting member; and bringing the substrate into close contact with the surface of the supporting member at a strength lower than a bonding strength between the holding member and the surface of the supporting member.
    Type: Grant
    Filed: April 14, 2020
    Date of Patent: May 11, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Katsuhiko Kishimoto
  • Patent number: 10997906
    Abstract: The present invention is equipped with a substrate upon which a drive circuit containing a TFT, a planarization film, and an OLED are formed. The TFT is provided with a gate electrode, a drain electrode, a source electrode, and a semiconductor layer with regions serving as the channel and extends along a prescribed direction. The drain electrode and the source electrode are disposed such that respective portions of the drain electrode and the source electrode are arranged in an alternating manner along the prescribed direction. The connection between the drive circuit and the OLED is achieved via a conductor layer with a Ti layer and a Cu layer (Cu alloy layer) and is embedded in the interior of a contact hole formed in the planarization film, and the surface of the planarization film is formed with an arithmetic mean roughness Ra of no more than 50 nm.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: May 4, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Yukiya Nishioka
  • Patent number: 10996528
    Abstract: This display device is provided with: a plurality of pixels (3); a plurality of source lines (SL); a source drive circuit (12a); and a plurality of switches (40, 41). The plurality of pixels are arranged in a matrix, and form a display region (10a) in which an image is displayed. The plurality of source lines (SL) are wired in the row direction of the pixel matrix on the display region, and connected to the respective pixels. The source drive circuit has a plurality of signal lines (PL) through which signals supplied to the respective pixels via the source lines are outputted. The switches are provided between the source lines and the signal lines. More than one of the source lines are wired to the pixels in the same row in the matrix. The source lines (SLe, SLo) for pixels in the same row and one of the signal lines of the source drive circuit, are connected via the switches.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: May 4, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Haruhito Yabuki
  • Patent number: 10991919
    Abstract: According to a flexible light-emitting device production method of the present disclosure, after an intermediate region (30i) and a flexible substrate region (30d) of a plastic film (30) of a multilayer stack (100) are divided, the interface between the flexible substrate region (30d) and a glass base (10) is irradiated with lift-off light. The multilayer stack (100) is separated into the first portion (110) and the second portion (120) while the multilayer stack (100) is kept in contact with the stage (210). The first portion (110) includes a plurality of light-emitting devices (1000) which are in contact with the stage (210). The light-emitting devices (1000) include a plurality of functional layer regions (20) and the flexible substrate region (30d). The second portion (120) includes the glass base (10) and the intermediate region (30i).
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: April 27, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Katsuhiko Kishimoto