Patents Assigned to Sakai Display Products Corporation
  • Patent number: 11158804
    Abstract: According to a flexible light-emitting device production method of the present disclosure, after an intermediate region (30i) and flexible substrate regions (30d) of a plastic film (30) of a multilayer stack (100) are divided from one another, the interface between the flexible substrate regions (30d) and a glass base (10) is irradiated with lift-off light. The multilayer stack (100) is separated into a first portion (110) and a second portion (120) while the multilayer stack (100) is in contact with a stage (212). The first portion (110) includes a plurality of light-emitting devices (1000) which are in contact with the stage (212). The light-emitting devices (1000) include a plurality of functional layer regions (20) and the flexible substrate regions (30d). The second portion (120) includes the glass base (10) and the intermediate region (30i).
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: October 26, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Kohichi Tanaka
  • Patent number: 11148510
    Abstract: A shading device comprises: a shading member formed using a dimming glass plate capable of changing light transmittance, the shading member having a plate shape; a display apparatus being capable of transmitting light and disposed on a surface of the shading member, the surface being to face an operator during use of the shading member, in such a manner that a display portion faces the operator; an image pickup device to pick up, as an image, a region which an opposite surface of the surface faces, and generate image pickup data; a data processing circuit to generate display image data to be displayed on the display portion during use of the shading member, based on the image pickup data generated by the image pickup device; and a switch to change light transmittance of the dimming glass plate.
    Type: Grant
    Filed: August 3, 2020
    Date of Patent: October 19, 2021
    Assignee: Sakai Display Products Corporation
    Inventor: Katsuhiko Kishimoto
  • Patent number: 11152442
    Abstract: By using an a-Si layer with low electron mobility in a TFT for driving an organic EL display device, the present invention solves problems stemming from uneven laser irradiation and suppresses the occurrence of non-uniform color and luminance. In the present invention, a first conductor film (26a) forming a drain electrode and a second conductor film (25a) forming a source electrode are disposed such that respective portions (26a1 . . . , 25a1 . . . ) of the first conductor film (26a) and the second conductor film (25a) are arranged in an alternating manner along a prescribed direction.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: October 19, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Yukiya Nishioka
  • Patent number: 11151957
    Abstract: This display device is provided with: a gate driver that drives a display panel; and a control circuit that controls driving of the gate driver. The control circuit is provided with: a Voltage supply circuit that supplies a Voltage to the gate driver; and a current detection circuit that detects a current to be supplied to the gate driver. The display device reduces, in stages, the voltage to be supplied to the gate driver, and detects the current to be supplied to the gate driver, and in the cases where the detected current is equal to or lower than a predetermined value or a current increase is detected, the display device acquires a first voltage being supplied to the gate driver, and sets a second voltage as a drive voltage for driving the gate driver, said second voltage being obtained by adding a predetermined voltage to the acquired first voltage.
    Type: Grant
    Filed: April 27, 2017
    Date of Patent: October 19, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Yoshiyuki Shimizu, Shuji Uemura
  • Patent number: 11145839
    Abstract: An organic EL display device includes an element substrate including a substrate, plurality of organic EL elements supported by the substrate and respectively located in the plurality of pixels, and bank layer defining each of the plurality of pixels; and thin film encapsulation structure covering the plurality of pixels. The bank layer has an inclining surface enclosing each of the plurality of pixels. The thin film encapsulation structure includes a first inorganic barrier layer, organic barrier layer including a plurality of solid portions in contact with a top surface of the first inorganic barrier layer, and second inorganic barrier layer in contact with the top surface of the first inorganic barrier layer and top surfaces of the plurality of solid portions. The plurality of solid portions include pixel periphery solid portions each extending from a portion on the inclining surface to a peripheral area in the corresponding pixel.
    Type: Grant
    Filed: March 24, 2020
    Date of Patent: October 12, 2021
    Assignee: Sakai Display Products Corporation
    Inventor: Katsuhiko Kishimoto
  • Patent number: 11145269
    Abstract: A display apparatus comprises: a display panel; a scanning line drive unit; a plurality of data line drive units to output a data line signal to target data lines; and a timing control unit. A first correction time is set individually for each data line drive unit and a second correction time is set individually for each target data line. The timing control unit transmits the image signal to each data line drive unit, with a delay by the first correction time from a transmission start time for a group of pixels lined up in a row direction based on a first clock signal, and each data line drive unit outputs the data line signal with a delay by the second correction time from an output reference time for target pixels being connected to the target data lines based on a second clock signal synchronized with the first clock signal.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: October 12, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Haruhito Yabuki
  • Patent number: 11142385
    Abstract: A container (100) comprises: an accommodation member (10) that includes a base surface member (12) that defines a base surface of an accommodation space (10s), and a side surface member (14) that defines a side surface of the accommodation space; and a protection member (20a) that has a receiving surface that abuts an object to be accommodated. The side surface member (14) includes a cutaway section (15a) that faces the accommodation space (10s). The protection member (20a) includes: an inner member (22a) provided with a receiving section that has a receiving surface (23); and an outer member (32a) disposed between the inner, member (22a) and the side surface member (14) and fitting together with the inner member (22a) so as to be able to slide in a direction that intersects the base surface.
    Type: Grant
    Filed: May 18, 2017
    Date of Patent: October 12, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Kazuki Nakamichi
  • Patent number: 11143927
    Abstract: The present invention has: a reflective liquid crystal display element (30) that is formed in a first region (R) on a TFT substrate (20) and having at least the upper surface thereof comprising an inorganic insulating film (25b), and that has a reflective electrode (31), a liquid crystal layer (32), and a counter electrode (33); and a light-emitting element (40) that is formed in a second region (T) above the insulating layer of the TFT substrate, and that has a first electrode (41), a light-emitting layer (43), and a second electrode (44). In addition, the light-emitting element has an encapsulating layer (45) formed of an inorganic insulating layer that covers the entirety of each light-emitting region, and an end portion of the encapsulating layer is bonded to the inorganic insulating film of the insulating layer.
    Type: Grant
    Filed: June 11, 2018
    Date of Patent: October 12, 2021
    Assignees: SAKAI DISPLAY PRODUCTS CORPORATION, SHARP KABUSHIKI KAISHA
    Inventors: Katsuhiko Kishimoto, Yozo Narutaki, Shinji Shimada, Kiyoshi Minoura
  • Patent number: 11131888
    Abstract: In a display panel, all of a plurality of directors of liquid crystal composition composing the liquid crystal layer are essentially perpendicular to the first alignment film and the second alignment film in the absence of applied voltage. A liquid crystal layer included in each of a plurality of unit pixels arranged in a matrix along a row direction and along a column direction has a single alignment state. A director of liquid crystal composition located at a central portion in a first unit pixel that is one of the plurality of unit pixels is in an opposite orientation with respect to a director of liquid crystal composition located at a central portion in a second unit pixel that is in a same row or a same column as the first unit pixel.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: September 28, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Atsuko Maeda, Shintaro Yamada, Katsumi Kondo, Hideki Nakagawa, Toshihiro Yamashita
  • Patent number: 11133333
    Abstract: A thin film transistor according to an embodiment of the present invention includes: a gate electrode supported by a substrate; a gate insulating layer covering the gate electrode; a silicon semiconductor layer being provided on the gate insulating layer and having a crystalline silicon region, the crystalline silicon region including a first region, a second region, and a channel region located between the first region and the second region, such that the channel region, the first region, and the second region overlap the gate electrode via the gate insulating layer; an insulating protection layer disposed on the silicon semiconductor layer so as to cover the channel region and allow the first region and the second region to be exposed; a source electrode electrically connected to the first region; and a drain electrode electrically connected to the second region. The channel region is lower in crystallinity than the first region and the second region.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: September 28, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Yuta Sugawara, Masakazu Tanaka, Nobutake Nodera, Takao Matsumoto
  • Patent number: 11127726
    Abstract: According to a flexible light-emitting device production method of the present disclosure, after an intermediate region (30i) and flexible substrate regions (30d) of a plastic film (30) of a multilayer stack (100) are divided from one another, the interface between the flexible substrate regions (30d) and a glass base (10) is irradiated with lift-off light. The multilayer stack (100) is separated into a first portion (110) and a second portion (120) while the multilayer stack (100) is in contact with a 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 regions (30d). The second portion (120) includes the glass base (10) and the intermediate region (30i).
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: September 21, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Kazunobu Mameno, Kohichi Tanaka
  • Patent number: 11117729
    Abstract: A bottom surface member of a container defines an xy-plane, and a side surface member defines an xz-plane and aan yz-plane. A protective member includes a receiving part that has a first receiving surface parallel to the xz-plane and a second receiving surface parallel to the yz-plane, and a supporting part formed with the receiving part. The supporting part has a first flat plate section parallel to the xz-plane, a second flat plate section parallel to the yz-plane, and a third flat plate section parallel to the xy-plane. The receiving part has a fourth flat plate section that has the first receiving surface and is parallel to the xz-plane, a fifth flat plate section parallel to the yz-plane, a sixth flat plate section facing the fourth flat plate section with a gap therebetween, and a seventh flat plate section that has the second receiving surface.
    Type: Grant
    Filed: September 8, 2017
    Date of Patent: September 14, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Takashi Uchida
  • Patent number: 11119357
    Abstract: A display apparatus (1) comprises: a display panel (3); an optical sheet (4) having rectangular shape; and a support member (5) having a slider (S) supporting at least one side (41a) of the optical sheet, wherein the support member (5) has a support part (51) to which the slider (S) is slidably mounted, the optical sheet (4) has a fixing part to be fixed to the slider (S), the fixing part being provided along an end region positioned from a central region of the at least one side (41a) of the optical sheet (4) toward an end of the at least one side (41a) of the optical sheet (4), and the slider (S) slides with respect to the support part (51) in accordance with expansion and contraction of the optical sheet (4) in a direction along the at least one side (41a) of the optical sheet (4).
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: September 14, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Kazuki Nakamichi
  • Patent number: 11121262
    Abstract: A semiconductor device includes a thin film transistor including: a substrate 1; a gate electrode 2 supported on the substrate 1; a semiconductor layer 4 provided on the gate electrode with a gate insulating layer 3 therebetween, wherein the semiconductor layer includes a first region Rs, a second region Rd, and a source-drain interval region SG that is located between the first region and the second region and overlaps with the gate electrode as seen from a direction normal to the substrate; a first contact layer Cs in contact with the first region and a second contact layer Cd in contact with the second region; a source electrode 8s electrically connected to the first region with the first contact layer therebetween; and a drain electrode 8d electrically connected to the second region with the second contact layer therebetween, wherein: the semiconductor layer includes a crystalline silicon region 4c, and at least a portion of the crystalline silicon region is located in the source-drain interval region SG;
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: September 14, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Shigeru Ishida, Tomohiro Inoue, Ryohei Takakura
  • Patent number: 11114517
    Abstract: The present invention is equipped with: a substrate (10) that has a surface upon which a drive circuit containing a TFT (20) is formed; a planarizing layer (30) that makes the surface of the substrate (10) planar by covering the drive circuit; and an organic light emitting element (40) that is provided with a first electrode (41) formed upon the surface of the planarization film and connected to the drive circuit, an organic light emitting layer (43) formed upon the first electrode, and a second electrode (44) formed upon the organic light emitting layer. In addition, the planarizing layer (30) includes a first inorganic insulating layer (31) and an organic insulating layer (32) that are layered upon the drive circuit, and the surface of the organic insulating layer (32) is formed with an arithmetic mean roughness Ra of no more than 50 nm.
    Type: Grant
    Filed: March 28, 2018
    Date of Patent: September 7, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventor: Katsuhiko Kishimoto
  • Patent number: 11114650
    Abstract: According to a flexible OLED device production method of the present disclosure, after an intermediate region (30i) and flexible substrate regions (30d) of a plastic film (30) of a multilayer stack (100) are divided from one another, the interface between the flexible substrate regions (30d) and a glass base (10) is irradiated with laser light. The multilayer stack (100) is separated into a first portion (110) and a second portion (120) while the multilayer stack (100) is in contact with a stage (212). The first portion (110) includes a plurality of OLED devices (1000) which are in contact with the stage (212). The OLED devices (1000) include a plurality of functional layer regions (20) and the flexible substrate regions (30d). The second portion (120) includes the glass base (10) and the intermediate region (30i).
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: September 7, 2021
    Assignee: Sakai Display Products Corporation
    Inventors: Kohichi Tanaka, Katsuhiko Kishimoto
  • Patent number: 11107876
    Abstract: An organic EL device (100D) according to an embodiment of the present invention has: a substrate (1); a drive circuit layer (2) having a plurality or TFTs formed on the substrate; interlayer insulation layers (2Pa, 2Pb) formed on the drive circuit layer; an organic EL element layer (3) formed on the interlayer insulation layers; and a thin-film sealing structure (10DE) formed so as to cover the organic EL element layer. The interlayer insulation layers have contact holes (CH1, CH2). Contact parts (C1, C2) that connect the drive circuit layer and the organic EL element layer are formed inside the contact holes. The surface (2Pb_Sb) of the interlayer insulation layers and the surface (C_Sb) of the contact parts are flush, and the arithmetic average roughness Ra of the surfaces are 50 nm or less.
    Type: Grant
    Filed: April 26, 2018
    Date of Patent: August 31, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Yozo Narutaki
  • Patent number: 11101431
    Abstract: An organic EL light-emitting element is provided in which, by means of an organic material that is oligomeric, 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 to be hydrophilic; 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: August 24, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Yukiya Nishioka
  • Patent number: 11101455
    Abstract: A vapor deposition mask is provided with: a resin film, which has at least one of first to third opening patterns in which first to third openings, for forming first to third subpixels that configure one pixel of a display panel, are disposed with a fixed periodicity; and a metal support layer, which is bonded to the resin film and has an opening pattern for fourth openings that are formed so as to be able to encompass all of the first to third openings of the resin film. In regions of the resin film exposed by the fourth openings of the metal support layer, one or two of the first to third openings of the resin film are formed.
    Type: Grant
    Filed: February 9, 2021
    Date of Patent: August 24, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Kazunobu Mameno
  • Patent number: 11101438
    Abstract: According to a flexible light-emitting device production method of the present disclosure, after an intermediate region and flexible substrate regions of a plastic film of a multilayer stack are divided from one another, the interface between the flexible substrate regions and a glass base is irradiated with lift-off light. The multilayer stack is separated into a first portion and a second portion while the multilayer stack is in contact with a stage. The first portion includes a plurality of light-emitting devices which are in contact with the stage. The light-emitting devices include a plurality of functional layer regions and the flexible substrate regions. The second portion includes the glass base and the intermediate region. The stage has ejection holes in a region which is to face the intermediate region, from which a fluid is ejected in the separation step.
    Type: Grant
    Filed: May 9, 2018
    Date of Patent: August 24, 2021
    Assignee: SAKAI DISPLAY PRODUCTS CORPORATION
    Inventors: Katsuhiko Kishimoto, Yukiya Nishioka, Kohichi Tanaka