Patents by Inventor Syou Yanagisawa

Syou Yanagisawa has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20240094578
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Application
    Filed: November 29, 2023
    Publication date: March 21, 2024
    Inventor: Syou YANAGISAWA
  • Patent number: 11867997
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Grant
    Filed: April 23, 2021
    Date of Patent: January 9, 2024
    Assignee: Japan Display Inc.
    Inventor: Syou Yanagisawa
  • Publication number: 20210240034
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 5, 2021
    Inventor: Syou YANAGISAWA
  • Patent number: 11009738
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Grant
    Filed: October 14, 2019
    Date of Patent: May 18, 2021
    Assignee: Japan Display Inc.
    Inventor: Syou Yanagisawa
  • Publication number: 20200041833
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Application
    Filed: October 14, 2019
    Publication date: February 6, 2020
    Inventor: Syou YANAGISAWA
  • Patent number: 10488698
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: November 26, 2019
    Assignee: Japan Display Inc.
    Inventor: Syou Yanagisawa
  • Patent number: 10451913
    Abstract: The liquid crystal display panel according to the present invention is a liquid crystal display panel LCD wherein a CF substrate S1 on which color filters are formed and a TFT substrate S2 on which thin film transistor circuits are formed are layered on top of each other with liquid crystal being sealed between the two substrates, characterized in that a black light blocking region BM is formed in a frame portion of the CF substrate S1, and an identification mark M drawn as a negative pattern is provided to a part of the light blocking region, and a metal film MT1 is provided to the TFT substrate S2 in such a location as to block light that transmits through the identification mark.
    Type: Grant
    Filed: December 19, 2016
    Date of Patent: October 22, 2019
    Assignee: Japan Display Inc.
    Inventor: Syou Yanagisawa
  • Patent number: 10168541
    Abstract: A three-dimensional display device prevents a barrier wire breakage failure and includes a parallax barrier panel resistant to static electricity. The 3D display device has a liquid crystal parallax barrier panel disposed over a display panel. The parallax barrier panel has a first substrate having an electrode formed flat thereon and a second substrate having a display area, the first substrate and the second substrate having liquid crystal sandwiched therebetween. The second substrate has barrier electrodes extending in a first direction and arrayed at a first pitch in a second direction, has a first bus electrode extending in the second direction outside the display area along a first side thereof, and has a second bus electrode extending in the second direction outside the display area along a second side thereof opposite to the first side. The barrier electrodes are connected to the first and the second bus electrodes.
    Type: Grant
    Filed: March 28, 2016
    Date of Patent: January 1, 2019
    Assignee: Japan Display Inc.
    Inventors: Takahiro Ochiai, Keita Sasanuma, Syou Yanagisawa, Shinichirou Oka, Kouichi Shirai
  • Patent number: 10048552
    Abstract: This invention envisages flexible wiring substrate terminals serving to connect with the wires for preventing dielectric breakdown caused by static electricity during the manufacturing process, and reducing the number of the flexible wiring substrate terminals. On a mother TFT substrate, signal lines extend over each liquid crystal cell in a manner flanking a scribe line between the adjacent liquid crystal cells. The signal lines of each liquid crystal cell are connected with connecting lines striding the scribe line. This reduces the number of static electricity countermeasure wires extending from the flexible wiring substrate terminals of each liquid crystal cell. Once completed, the individual liquid crystal cells are separated from one another, with no adverse effects caused by the connecting lines.
    Type: Grant
    Filed: August 11, 2016
    Date of Patent: August 14, 2018
    Assignee: Japan Display Inc.
    Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Hiroyuki Abe, Takayuki Suzuki
  • Patent number: 10042193
    Abstract: An object of the present invention is to protect exposed inspection pads with a conductive tape when the application of resin is ceased and to enhance the reliability of the inspection pads. A liquid crystal display device is provided with a transparent electrode formed on a superficial side of a CF board, a grounded electrode, an inspection pad and a switching device between the inspection pad and a signal line or a scanning line respectively formed in a terminal area a TFT board and a conductive tape that electrically connects the transparent electrode of the CF board, the grounded electrode and the inspection pad respectively of the TFT board.
    Type: Grant
    Filed: April 21, 2017
    Date of Patent: August 7, 2018
    Assignee: Japan Display Inc.
    Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Nobuyuki Ishige
  • Patent number: 9954013
    Abstract: This invention aims at reducing the probability of short-circuiting between terminals in a display device in which an IC driver is connected by COG. Terminals for connection with the IC driver are formed in a terminal region of a TFT substrate (100). The terminals are each comprised of a terminal metal (60), a first through-bole formed in a first insulation film (107), a second through-hole formed in a second insulation film (109), a first ITO (20) formed in the first through-hole and being in contact with the terminal metal (60), and a second ITO (30) formed over the first ITO (20). The second ITO (30) is formed within an area where the second ITO is in contact with the first ITO but is not formed outside the second through-hole. This ensures that the distance between the ITOs of the adjacent terminals can be enlarged, whereby the probability of short-circuiting between the terminals can be lowered.
    Type: Grant
    Filed: April 1, 2016
    Date of Patent: April 24, 2018
    Assignee: Japan Display Inc.
    Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Nobuyuki Ishige
  • Publication number: 20170363966
    Abstract: The invention provides a display device that allows formation of the boundary of exposure at an arbitrary position on its substrate. A display device includes: a display area; a terminal; and a wire formed between the display area and the terminal and connected to the terminal. The wire includes a first part, a second part, and a third part. The first part extends in a first direction. The second part and the third part extend in a direction different from the first direction. The first part is located between the second and third parts and includes a protruding portion protruding in a second direction perpendicular to the first direction.
    Type: Application
    Filed: June 7, 2017
    Publication date: December 21, 2017
    Inventors: Keita SASANUMA, Hideki KURIYAMA, Kohei HANASAKI, Syou YANAGISAWA, Kentaro AGATA
  • Publication number: 20170219858
    Abstract: An object of the present invention is to protect exposed inspection pads with a conductive tape when the application of resin is ceased and to enhance the reliability of the inspection pads. A liquid crystal display device is provided with a transparent electrode formed on a superficial side of a CF board, a grounded electrode, an inspection pad and a switching device between the inspection pad and a signal line or a scanning line respectively formed in a terminal area a TFT board and a conductive tape that electrically connects the transparent electrode of the CF board, the grounded electrode and the inspection pad respectively of the TFT board.
    Type: Application
    Filed: April 21, 2017
    Publication date: August 3, 2017
    Inventors: Tomonori NISHINO, Syou YANAGISAWA, Kentaro AGATA, Nobuyuki ISHIGE
  • Patent number: 9690125
    Abstract: A display device includes a display area and a terminal area formed outside the display area. The display area has a plurality of scanning lines and a plurality of video signal lines that cross the scanning lines. The terminal area has a first terminal having a semiconductor chip connected thereto, a first line, a second line, and an inspection thin-film transistor. The inspection thin-film transistor has a gate electrode connected to the first line, a source electrode connected to the second line, and a drain electrode. The first terminal is connected to any of the plurality of scanning lines and the plurality of video signal lines.
    Type: Grant
    Filed: February 5, 2014
    Date of Patent: June 27, 2017
    Assignee: Japan Display Inc.
    Inventors: Syou Yanagisawa, Nobuyuki Ishige, Tomonori Nishino, Kentaro Agata
  • Patent number: 9664932
    Abstract: An object of the present invention is to protect exposed inspection pads with a conductive tape when the application of resin is ceased and to enhance the reliability of the inspection pads. A liquid crystal display device is provided with a transparent electrode formed on a superficial side of a CF board, a grounded electrode, an inspection pad and a switching device between the inspection pad and a signal line or a scanning line respectively formed in a terminal area a TFT board and a conductive tape that electrically connects the transparent electrode of the CF board, the grounded electrode and the inspection pad respectively of the TFT board.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 30, 2017
    Assignee: Japan Display Inc.
    Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Nobuyuki Ishige
  • Publication number: 20170097539
    Abstract: The liquid crystal display panel according to the present invention is a liquid crystal display panel LCD wherein a CF substrate S1 on which color filters are formed and a TFT substrate S2 on which thin film transistor circuits are formed are layered on top of each other with liquid crystal being sealed between the two substrates, characterized in that a black light blocking region BM is formed in a frame portion of the CF substrate S1, and an identification mark M drawn as a negative pattern is provided to a part of the light blocking region, and a metal film MT1 is provided to the TFT substrate S2 in such a location as to block light that transmits through the identification mark.
    Type: Application
    Filed: December 19, 2016
    Publication date: April 6, 2017
    Inventor: Syou YANAGISAWA
  • Patent number: 9581841
    Abstract: A display device is configured to provide a crack detection line running from a first crack detection terminal along a side of a TFT substrate to extend to a second crack detection terminal. A switching transistor for switching between an image display and crack detection is provided at a side opposite a terminal portion between the crack detection line and a video signal line. The crack that may cause disconnection in the crack detection line is detected by turning the switching transistor on, and applying the voltage for lighting inspection to the first crack detection terminal and the second crack detection terminal sequentially in this order.
    Type: Grant
    Filed: December 18, 2013
    Date of Patent: February 28, 2017
    Assignee: Japan Display Inc.
    Inventor: Syou Yanagisawa
  • Publication number: 20170038635
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Application
    Filed: October 21, 2016
    Publication date: February 9, 2017
    Inventor: Syou YANAGISAWA
  • Publication number: 20160349581
    Abstract: This invention envisages flexible wiring substrate terminals serving to connect with the wires for preventing dielectric breakdown caused by static electricity during the manufacturing process, and reducing the number of the flexible wiring substrate terminals. On a mother TFT substrate, signal lines extend over each liquid crystal cell in a manner flanking a scribe line between the adjacent liquid crystal cells. The signal lines of each liquid crystal cell are connected with connecting lines striding the scribe line. This reduces the number of static electricity countermeasure wires extending from the flexible wiring substrate terminals of each liquid crystal cell. Once completed, the individual liquid crystal cells are separated from one another, with no adverse effects caused by the connecting lines.
    Type: Application
    Filed: August 11, 2016
    Publication date: December 1, 2016
    Inventors: Tomonori NISHINO, Syou YANAGISAWA, Kentaro AGATA, Hiroyuki ABE, Takayuki SUZUKI
  • Patent number: 9507199
    Abstract: A black matrix is formed to an edge of a counter substrate. Then, a BM slit, which is an area where the black matrix is not present, is formed in the periphery of a seal material in order to prevent water or moisture from penetrating from the interface between the counter substrate and the black matrix. Then, a light shielding metal is formed in a layer other than a lead line layer, on the side of a TFT substrate, in order to prevent light from leaking from the BM slit. With this structure, it is possible to prevent the light from leaking from the BM slit around a screen. As a result, the degradation of the contrast can be prevented in the periphery of the screen.
    Type: Grant
    Filed: July 22, 2013
    Date of Patent: November 29, 2016
    Assignee: Japan Display Inc.
    Inventor: Syou Yanagisawa