Patents by Inventor Yuki KURAMOTO
Yuki KURAMOTO 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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Patent number: 9759955Abstract: A liquid crystal display device includes: a TFT substrate including a TFT, an organic passivation film formed to cover the TFT, and an alignment film; and a counter substrate including a spacer and an alignment film. The TFT substrate and the counter substrate are bonded with a sealing material in a seal portion, with a liquid crystal interposed between the two substrates. A wall-like structure is formed in the seal portion of the counter substrate, in a direction parallel to a side of the counter substrate. A concave portion of the organic passivation film is formed at a position corresponding to the wall-like structure of the TFT substrate, in a direction parallel to the side of the TFT substrate. With this structure, a gap between the wall-like structure and the TFT substrate is increased to facilitate the movement of the sealing material before curing, to form the sealing material uniformly.Type: GrantFiled: July 24, 2014Date of Patent: September 12, 2017Assignee: Japan Display Inc.Inventors: Tomokazu Ishikawa, Yuki Kuramoto, Saori Sugiyama
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Publication number: 20170235167Abstract: A liquid crystal display device has pixels in a TFT substrate, each of the pixels has a TFT. An organic insulting film 108 is formed to cover the TFT. A first electrode 109 and a second electrode 111 are formed above the organic insulting film 108 with an inorganic insulating film 110 placed between the first electrode 109 and the second electrode 111. An alignment film is formed on the first electrode 109 and the second electrode 111. The second electrode 111 connects with the TFT through a contact hole formed in the organic insulating film 108. A cross section of the organic insulating film 108 that includes the contact hole and is parallel to the second direction has a convex section and a concave section 70 at a bank located near the contact hole, the convex section being located closer to the contact hole than the concave section 70.Type: ApplicationFiled: February 3, 2017Publication date: August 17, 2017Inventors: Tomokazu ISHIKAWA, Yuki KURAMOTO, Hiroshi MIYAIRI, Ryota KOBAYASHI, Katsuto SUGIMOTO
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Patent number: 9726938Abstract: Red pixels (R), blue pixels (B) and green pixels (G) are formed in parallel. First columnar spacers 10 and second columnar spacers 20 are formed on a first substrate. The distance between the first substrate and a second substrate in a normal state is determined by the first columnar spacers 10. The diameter of a light blocking film corresponding to each first columnar spacer 10 is greater than the diameter of a light blocking film corresponding to each second columnar spacer 20. The first columnar spacer 10 is not formed at a boundary between a green pixel (G) and a red pixel (R) or a boundary between a green pixel (G) and a blue pixel (B). The second columnar spacer 20 is formed at a boundary between pixels irrespective of the pixel color. Thus, appropriate color balance can be attained with ease without having a drop in the luminance.Type: GrantFiled: October 13, 2015Date of Patent: August 8, 2017Assignee: Japan Display Inc.Inventors: Saori Sugiyama, Takanori Nakayama, Yuki Kuramoto
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Patent number: 9696592Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.Type: GrantFiled: August 4, 2015Date of Patent: July 4, 2017Assignee: Japan Display Inc.Inventors: Tomonori Nishino, Masato Shimura, Tomokazu Ishikawa, Yuki Kuramoto, Satoshi Hashimoto
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Publication number: 20160306224Abstract: According to one embodiment, a display device comprises a display panel and a polarizing plate. The display panel comprises a display area, a non-display area surrounding the display area, and a light-shielding layer arranged in the display area and the non-display area. The polarizing plate is provided on a surface of the display panel, and including an end portion located in the non-display area. In this display device, the light-shielding layer opposite to the end portion of the polarizing plate is at least partially removed.Type: ApplicationFiled: April 4, 2016Publication date: October 20, 2016Applicant: Japan Display Inc.Inventors: Tomokazu ISHIKAWA, Yuki Kuramoto, Haruki Yamada, Katsuhiro Kato
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Publication number: 20160259189Abstract: A liquid crystal display device is provided in which color unevenness can be reduced and inhibited in the peripheral display area even when the display device has a narrow frame. In the liquid crystal display device, liquid crystal sandwiched between a TFT substrate and a CF substrate and sealed by a seal is disposed in a frame portion. The CF substrate has a BM, a color resist film, an OC, an alignment film, and a wall that inhibits the alignment film from expanding outward. In the area where the wall is disposed, the BM and color resist film on the CF substrate are removed.Type: ApplicationFiled: May 18, 2016Publication date: September 8, 2016Inventor: Yuki KURAMOTO
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Publication number: 20160246093Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: ApplicationFiled: May 3, 2016Publication date: August 25, 2016Inventors: Takahiro OCHIAI, Yuki KURAMOTO, Masahiro HOSHIBA
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Patent number: 9372365Abstract: A liquid crystal display device is provided in which color unevenness can be reduced and inhibited in the peripheral display area even when the display device has a narrow frame. In the liquid crystal display device, liquid crystal sandwiched between a TFT substrate and a CF substrate and sealed by a seal is disposed in a frame portion. The CF substrate has a BM, a color resist film, an OC, an alignment film, and a wall that inhibits the alignment film from expanding outward. In the area where the wall is disposed, the BM and color resist film on the CF substrate are removed.Type: GrantFiled: August 6, 2014Date of Patent: June 21, 2016Assignee: JAPAN DISPLAY INC.Inventor: Yuki Kuramoto
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Publication number: 20160161778Abstract: There is achieved a liquid crystal display device having a smaller picture frame region and a seal part of improved reliability. A liquid crystal display device includes a TFT substrate having a display region and a terminal region and formed with an organic passivation film, a counter substrate attached to the TFT substrate through a seal part, and a liquid crystal contained inside the seal part. A hole is formed at a predetermined pitch on the organic passivation film of the TFT substrate corresponding to the seal part when viewed on a plane. When the hole is viewed on a plane, a shortest distance from the hole to the hole is four micrometers or greater and 12 micrometers or less at a height of h1=0.9×h2 from a bottom face of the hole, where a depth of the hole is defined as h2.Type: ApplicationFiled: December 3, 2015Publication date: June 9, 2016Inventors: Tomonori NISHINO, Masato SHIMURA, Tomokazu ISHIKAWA, Yuki KURAMOTO, Satoshi HASHIMOTO
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Patent number: 9360716Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: GrantFiled: June 3, 2015Date of Patent: June 7, 2016Assignee: JAPAN DISPLAY INC.Inventors: Takahiro Ochiai, Yuki Kuramoto, Masahiro Hoshiba
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Publication number: 20160147097Abstract: According to one embodiment, A display device includes a first substrate includes an inorganic insulating film, a first wiring formed above the inorganic insulating film, an organic insulating film located above the inorganic insulating film and the first wiring, and a driver electrically connected to the first wiring, a second substrate opposing the first substrate, and a sealant fixing the first substrate and the second substrate, wherein the sealant comprises a first seal portion formed along a first edge of the first substrate and a second seal portion which crosses the first seal portion, and the first seal portion has a first width, and the second seal portion has a second width, the first width being greater than the second width.Type: ApplicationFiled: November 17, 2015Publication date: May 26, 2016Applicant: Japan Display Inc.Inventors: Taiki MAKINO, Tomokazu ISHIKAWA, Yuki KURAMOTO
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Publication number: 20160103352Abstract: Red pixels (R), blue pixels (B) and green pixels (G) are formed in parallel. First columnar spacers 10 and second columnar spacers 20 are formed on a first substrate. The distance between the first substrate and a second substrate in a normal state is determined by the first columnar spacers 10. The diameter of a light blocking film corresponding to each first columnar spacer 10 is greater than the diameter of a light blocking film corresponding to each second columnar spacer 20. The first columnar spacer 10 is not formed at a boundary between a green pixel (G) and a red pixel (R) or a boundary between a green pixel (G) and a blue pixel (B). The second columnar spacer 20 is formed at a boundary between pixels irrespective of the pixel color. Thus, appropriate color balance can be attained with ease without having a drop in the luminance.Type: ApplicationFiled: October 13, 2015Publication date: April 14, 2016Inventors: Saori SUGIYAMA, Takanori NAKAYAMA, Yuki KURAMOTO
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Publication number: 20160041413Abstract: In order to avoid generation of black unevenness caused by the water intrusion into a liquid crystal display device, there is to provide a liquid crystal display device including a display area and a terminal portion, in which a TFT substrate with an organic passivation film formed and an opposite substrate are adhered to each other by a seal portion and a liquid crystal is enclosed there, wherein in the seal portion of the TFT substrate, a groove-shaped through-hole is formed in the organic passivation film to surround the display area, a water absorption layer formed of the same material in the same process as that of the organic passivation film is formed within the groove-shaped through-hole, and the water absorption layer is not covered with the inorganic insulating film.Type: ApplicationFiled: August 4, 2015Publication date: February 11, 2016Inventors: Tomonori NISHINO, Masato Shimura, Tomokazu Ishikawa, Yuki Kuramoto, Satoshi Hashimoto
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Publication number: 20160004114Abstract: The displacement between a TFT substrate and a counter substrate is prevented when an external pressing pressure is applied to a liquid crystal display device, and an alignment film is prevent from being shaved by a columnar spacer. A liquid crystal display device includes a first substrate having a recess and an upper part other than the recess, a second substrate having a first columnar spacer and a second columnar spacer, and a liquid crystal sandwiched between the substrates. The first columnar spacer contacts the upper part of the first substrate; the second columnar spacer is inserted into the recess of the first substrate, and a gap exists between a tip end portion of the second columnar spacer and a bottom part of the recess; and a height of the second columnar spacer is higher than a height of the first columnar spacer.Type: ApplicationFiled: July 1, 2015Publication date: January 7, 2016Inventor: Yuki KURAMOTO
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Publication number: 20150268523Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: ApplicationFiled: June 3, 2015Publication date: September 24, 2015Inventors: Takahiro OCHIAI, Yuki Kuramoto, Masahiro Hoshiba
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Patent number: 9123858Abstract: A method for manufacturing a photoelectric conversion device including a first process where a plurality of pixel electrodes are formed on a dielectric layer; a second process where a light receiving layer that includes an organic material is formed on the plurality of pixel electrodes; and a third process where a counter electrode is formed on the light receiving layer. The first process includes a film forming process of a pixel electrode material on the dielectric layer; a patterning process of the film of the pixel electrode material; and a heating process for heating the substrate at 270° C. after the patterning process. Such process forming a photoelectric conversion device of a solid-state imaging device which also includes a signal reading circuit formed on the substrate, the signal reading circuit capable of reading out the signal according to a quantity of electric charges collected in the first electrode.Type: GrantFiled: March 27, 2013Date of Patent: September 1, 2015Assignee: FUJIFILM CorporationInventors: Tetsuro Mitsui, Yuki Kuramoto
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Patent number: 9122113Abstract: A liquid crystal display device includes a thin film transistor substrate, a counter substrate that faces the thin film transistor substrate, a liquid crystal composition that is arranged between the thin film transistor substrate and the counter substrate, an oriented film that arranges orientation of the liquid crystal composition contacting with the thin film transistor substrate, a seal material that seals the liquid crystal composition between the two substrates, and a driver circuit. The driver circuit has a light transmission area that is formed inside of the driver circuit, and is higher in light transmittance than an area in which a non-transparent conductive film forming the driver circuit is formed, and a high sealing property area in which the seal material and an insulating film come into direct contact with each other between the light transmission area and an outer edge of the thin film transistor substrate.Type: GrantFiled: November 15, 2012Date of Patent: September 1, 2015Assignee: JAPAN DISPLAY INC.Inventors: Takahiro Ochiai, Yuki Kuramoto, Masahiro Hoshiba
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Patent number: 8994132Abstract: A photoelectric conversion element includes an insulating film, a first electrode, a light receiving layer, and a second electrode. The first electrode is formed on the insulating film and is made of titanium oxynitride. The light receiving layer is formed on the first electrode and includes an organic material. A composition of the first electrode just before forming the light receiving layer meets (1) a requirement that an amount of oxygen contained in the whole of the first electrode is 75 atm % or more of an amount of titanium, or (2) a requirement that in a range of from the substrate side of the first electrode to 10 nm or a range of from the substrate side of the first electrode to ? of the thickness of the first electrode, an amount of oxygen is 40 atm % or more of an amount of titanium.Type: GrantFiled: September 26, 2011Date of Patent: March 31, 2015Assignee: FUJIFILM CorporationInventors: Tetsuro Mitsui, Yuki Kuramoto
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Publication number: 20150055067Abstract: It is desirable to provide a liquid crystal display device in which color unevenness can be reduced and inhibited in the peripheral display area even when the display device has a narrow frame. In the liquid crystal display device, liquid crystal 300 sandwiched between a TFT substrate and a CF substrate and sealed by a seal 400 is disposed in a frame portion 220. The CF substrate has a BM 102, a color resist film 107, an OC 103, an alignment film 104, and a wall 106 that inhibits the alignment film from expanding outward. In the area where the wall 106 is disposed, the BM 102 and color resist film 107 on the CF substrate are removed.Type: ApplicationFiled: August 6, 2014Publication date: February 26, 2015Inventor: Yuki KURAMOTO
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Publication number: 20150029432Abstract: A liquid crystal display device includes: a TFT substrate including a TFT, an organic passivation film formed to cover the TFT, and an alignment film; and a counter substrate including a spacer and an alignment film. The TFT substrate and the counter substrate are bonded with a sealing material in a seal portion, with a liquid crystal interposed between the two substrates. A wall-like structure is formed in the seal portion of the counter substrate, in a direction parallel to a side of the counter substrate. A concave portion of the organic passivation film is formed at a position corresponding to the wall-like structure of the TFT substrate, in a direction parallel to the side of the TFT substrate. With this structure, a gap between the wall-like structure and the TFT substrate is increased to facilitate the movement of the sealing material before curing, to form the sealing material uniformly.Type: ApplicationFiled: July 24, 2014Publication date: January 29, 2015Inventors: Tomokazu ISHIKAWA, Yuki KURAMOTO, Saori SUGIYAMA