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).
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Publication number: 20240094578Abstract: 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: ApplicationFiled: November 29, 2023Publication date: March 21, 2024Inventor: Syou YANAGISAWA
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Patent number: 11867997Abstract: 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: GrantFiled: April 23, 2021Date of Patent: January 9, 2024Assignee: Japan Display Inc.Inventor: Syou Yanagisawa
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Publication number: 20210240034Abstract: 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: ApplicationFiled: April 23, 2021Publication date: August 5, 2021Inventor: Syou YANAGISAWA
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Patent number: 11009738Abstract: 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: GrantFiled: October 14, 2019Date of Patent: May 18, 2021Assignee: Japan Display Inc.Inventor: Syou Yanagisawa
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Publication number: 20200041833Abstract: 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: ApplicationFiled: October 14, 2019Publication date: February 6, 2020Inventor: Syou YANAGISAWA
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Patent number: 10488698Abstract: 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: GrantFiled: October 21, 2016Date of Patent: November 26, 2019Assignee: Japan Display Inc.Inventor: Syou Yanagisawa
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Patent number: 10451913Abstract: 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: GrantFiled: December 19, 2016Date of Patent: October 22, 2019Assignee: Japan Display Inc.Inventor: Syou Yanagisawa
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Patent number: 10168541Abstract: 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: GrantFiled: March 28, 2016Date of Patent: January 1, 2019Assignee: Japan Display Inc.Inventors: Takahiro Ochiai, Keita Sasanuma, Syou Yanagisawa, Shinichirou Oka, Kouichi Shirai
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Patent number: 10048552Abstract: 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: GrantFiled: August 11, 2016Date of Patent: August 14, 2018Assignee: Japan Display Inc.Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Hiroyuki Abe, Takayuki Suzuki
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Patent number: 10042193Abstract: 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: GrantFiled: April 21, 2017Date of Patent: August 7, 2018Assignee: Japan Display Inc.Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Nobuyuki Ishige
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Patent number: 9954013Abstract: 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: GrantFiled: April 1, 2016Date of Patent: April 24, 2018Assignee: Japan Display Inc.Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Nobuyuki Ishige
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Publication number: 20170363966Abstract: 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: ApplicationFiled: June 7, 2017Publication date: December 21, 2017Inventors: Keita SASANUMA, Hideki KURIYAMA, Kohei HANASAKI, Syou YANAGISAWA, Kentaro AGATA
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Publication number: 20170219858Abstract: 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: ApplicationFiled: April 21, 2017Publication date: August 3, 2017Inventors: Tomonori NISHINO, Syou YANAGISAWA, Kentaro AGATA, Nobuyuki ISHIGE
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Patent number: 9690125Abstract: 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: GrantFiled: February 5, 2014Date of Patent: June 27, 2017Assignee: Japan Display Inc.Inventors: Syou Yanagisawa, Nobuyuki Ishige, Tomonori Nishino, Kentaro Agata
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Patent number: 9664932Abstract: 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: GrantFiled: April 26, 2016Date of Patent: May 30, 2017Assignee: Japan Display Inc.Inventors: Tomonori Nishino, Syou Yanagisawa, Kentaro Agata, Nobuyuki Ishige
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Publication number: 20170097539Abstract: 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: ApplicationFiled: December 19, 2016Publication date: April 6, 2017Inventor: Syou YANAGISAWA
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Patent number: 9581841Abstract: 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: GrantFiled: December 18, 2013Date of Patent: February 28, 2017Assignee: Japan Display Inc.Inventor: Syou Yanagisawa
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Publication number: 20170038635Abstract: 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: ApplicationFiled: October 21, 2016Publication date: February 9, 2017Inventor: Syou YANAGISAWA
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Publication number: 20160349581Abstract: 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: ApplicationFiled: August 11, 2016Publication date: December 1, 2016Inventors: Tomonori NISHINO, Syou YANAGISAWA, Kentaro AGATA, Hiroyuki ABE, Takayuki SUZUKI
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Patent number: 9507199Abstract: 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: GrantFiled: July 22, 2013Date of Patent: November 29, 2016Assignee: Japan Display Inc.Inventor: Syou Yanagisawa