Patents by Inventor Mitsutaka Okita
Mitsutaka Okita 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: 20170102600Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.Type: ApplicationFiled: December 21, 2016Publication date: April 13, 2017Inventors: Shigesumi ARAKI, Mitsutaka OKITA, Kazuhiro NISHIYAMA, Yoshitoshi KIDA, Koji ISHIZAKI, Kohei AZUMI, Hiroshi MIZUHASHI
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Patent number: 9482895Abstract: According to one embodiment, a liquid crystal display device includes array substrate, counter substrate and liquid crystal layer. The array substrate includes a plurality of pixel electrodes, a plurality of gate lines, a plurality of source lines, a plurality of switching elements, a gate driver, and a source driver. The counter substrate includes a color filter. In each frame period, gradation signals of given polarity are applied to a plurality of pixel electrodes facing the transparent filter, while gradation signals of the reverse polarity are applied to a plurality of pixel electrodes facing the green filter.Type: GrantFiled: June 6, 2014Date of Patent: November 1, 2016Assignee: Japan Display Inc.Inventors: Mitsutaka Okita, Kazuhiro Nishiyama
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Publication number: 20160306237Abstract: According to one embodiment, a display device, includes a first main pixel including a first sub-pixel, a second sub-pixel which is arranged in a first direction of the first sub-pixel, and a third sub-pixel which is arranged in a second direction of the first sub-pixel and the first direction of the second sub-pixel, and a second main pixel including a fourth sub-pixel which is arranged in the second direction of the third sub-pixel, a fifth sub-pixel which is arranged in the first direction of the fourth sub-pixel and the second direction of the second sub-pixel, and a sixth sub-pixel which is arranged in the first direction of the fourth sub-pixel and the second direction of the fifth sub-pixel.Type: ApplicationFiled: April 4, 2016Publication date: October 20, 2016Applicant: Japan Display Inc.Inventor: Mitsutaka OKITA
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Patent number: 9459508Abstract: According to one embodiment, a display device includes a first signal line, a second signal line, a first switching element, a second switching element, an insulating film, a first contact hole, a second contact hole, a first pixel electrode and a second pixel electrode. The first contact hole is formed in the insulating film, and located between the first signal line and the second signal line. The second contact hole is formed in the insulating film, located opposite to the first contact hole with respect to the second signal line, and also located side by side with the first contact hole in the first direction.Type: GrantFiled: December 10, 2015Date of Patent: October 4, 2016Assignee: Japan Display Inc.Inventor: Mitsutaka Okita
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Publication number: 20160259476Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.Type: ApplicationFiled: May 12, 2016Publication date: September 8, 2016Inventors: Shigesumi ARAKI, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi
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Publication number: 20160231616Abstract: A display device is provided that inhibits color mixture between adjacent subpixels and allows for obtaining a high-quality image. The display device includes a display area on which a light-blocking metal layer, a black matrix, and a plurality of subpixels are arranged, wherein the plurality of subpixels are arranged adjacent to one another via a black matrix as seen vertically from above, the black matrix and the light-blocking metal layer are arranged to overlap each other as seen vertically from above, and the light-blocking metal layer 130 is arranged on the bank of an organic flattened film.Type: ApplicationFiled: April 14, 2016Publication date: August 11, 2016Inventors: Noriyoshi KANDA, Shigesumi ARAKI, Mitsutaka OKITA, Hirohisa MIKI
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Publication number: 20160195782Abstract: A display device includes a scanning line extending in a first direction and a scanning line extending in a second direction. The signal line extends in a zigzag manner in the second direction by running tilted at a first predetermined angle with respect to the second direction for every plurality of pixels and running tilted at a second predetermined angle with respect to the second direction for every plurality of pixels.Type: ApplicationFiled: December 31, 2015Publication date: July 7, 2016Inventors: Shiegesumi ARAKI, Mitsutaka OKITA, Kazuhiro NISHIYAMA
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Publication number: 20160187751Abstract: According to one embodiment, a display device includes a first signal line, a second signal line, a first switching element, a second switching element, an insulating film, a first contact hole, a second contact hole, a first pixel electrode and a second pixel electrode. The first contact hole is formed in the insulating film, and located between the first signal line and the second signal line. The second contact hole is formed in the insulating film, located opposite to the first contact hole with respect to the second signal line, and also located side by side with the first contact hole in the first direction.Type: ApplicationFiled: December 10, 2015Publication date: June 30, 2016Applicant: Japan Display Inc.Inventor: Mitsutaka OKITA
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Publication number: 20160178962Abstract: According to one embodiment, a liquid crystal display panel includes a first substrate, a second substrate, a liquid crystal layer, a first color filter and a second color filter. The first substrate includes an organic insulating film, a first pixel electrode and a second pixel electrode. The organic insulating film includes a first projection portion located opposite to the boundary between the first color filter and the second color filter, extending along the boundary, and projecting toward the second substrate.Type: ApplicationFiled: December 2, 2015Publication date: June 23, 2016Applicant: Japan Display Inc.Inventor: Mitsutaka OKITA
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Publication number: 20160170276Abstract: According to one embodiment, a display device comprises a first substrate, the first substrate includes a gate line, first to third source lines, a first pixel electrode located between the first source line and the second source line and electrically connected with a first switching element, a second pixel electrode located between the first source line and the second source line and electrically connected with a second switching element, and a third pixel electrode intersecting the gate line, adjacent to the first pixel electrode and the second pixel electrode to sandwich the second source line and the third source line, and electrically connected with a third switching element.Type: ApplicationFiled: November 13, 2015Publication date: June 16, 2016Applicant: Japan Display Inc.Inventor: Mitsutaka OKITA
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Publication number: 20160172377Abstract: A display device includes: a scan line extending in a first direction; first, second and third signal lines extending in a second direction; a first sub-pixel connected to the scan line and the first signal line; a second sub-pixel connected to the scan line and the second signal line; and a third sub-pixel connected to the scan line and the third signal line. The second signal line disposed between the first sub-pixel and the third sub-pixel is formed by a different layer so as to overlap with the third signal line as viewed in a plan view.Type: ApplicationFiled: December 2, 2015Publication date: June 16, 2016Inventor: Mitsutaka OKITA
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Patent number: 9367165Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.Type: GrantFiled: October 7, 2014Date of Patent: June 14, 2016Assignee: Japan Display Inc.Inventors: Shigesumi Araki, Mitsutaka Okita, Kazuhiro Nishiyama, Yoshitoshi Kida, Koji Ishizaki, Kohei Azumi, Hiroshi Mizuhashi
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Publication number: 20160139469Abstract: A display device includes: first and second drain electrodes; an organic insulating film; an inorganic insulating film formed on the organic insulating film; and first and second pixel electrodes formed on the inorganic insulating film. The organic insulating film includes an organic insulating film opening spanning the first drain electrode and the second drain electrode. The inorganic insulating film covering the organic insulating film includes first and second inorganic insulating film openings. The first pixel electrode is connected to the first drain electrode via the first inorganic insulating film opening. The second pixel electrode is connected to the second drain electrode via the second inorganic insulating film opening.Type: ApplicationFiled: November 18, 2015Publication date: May 19, 2016Inventors: Mitsutaka OKITA, Noriyoshi KANDA, Toshiyuki HIGANO
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Patent number: 9341901Abstract: A display device is provided that inhibits color mixture between adjacent subpixels and allows for obtaining a high-quality image. The display device includes a display area on which a light-blocking metal layer, a black matrix, and a plurality of subpixels are arranged, wherein the plurality of subpixels are arranged adjacent to one another via a black matrix as seen vertically from above, the black matrix and the light-blocking metal layer are arranged to overlap each other as seen vertically from above, and the light-blocking metal layer 130 is arranged on the bank of an organic flattened film.Type: GrantFiled: July 16, 2015Date of Patent: May 17, 2016Assignee: Japan Display Inc.Inventors: Noriyoshi Kanda, Shigesumi Araki, Mitsutaka Okita, Hirohisa Miki
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Publication number: 20160018708Abstract: A display device is provided that inhibits color mixture between adjacent subpixels and allows for obtaining a high-quality image. The display device includes a display area on which a light-blocking metal layer, a black matrix, and a plurality of subpixels are arranged, wherein the plurality of subpixels are arranged adjacent to one another via a black matrix as seen vertically from above, the black matrix and the light-blocking metal layer are arranged to overlap each other as seen vertically from above, and the light-blocking metal layer 130 is arranged on the bank of an organic flattened film.Type: ApplicationFiled: July 16, 2015Publication date: January 21, 2016Inventors: Noriyoshi KANDA, Shigesumi ARAKI, Mitsutaka OKITA, Hirohisa MIKI
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Publication number: 20150301381Abstract: If a divided area of common electrode layers is positioned on a source line, a leakage electric field on the source line has an effect on a liquid crystal layer through the divided area of the common electrode layers. A display device includes an array substrate and a counter substrate. The array substrate includes scanning signal wiring layers, video signal wiring layers, pixel electrode layers arranged in a layer higher than the video signal wiring layers, and common electrode layers arranged in a layer higher than the pixel electrode layers. The common electrode layers are arranged in positions covering the video signal wiring layers in a plan view. The common electrode layers are divided in the extending direction of the video signal line.Type: ApplicationFiled: April 16, 2015Publication date: October 22, 2015Inventor: Mitsutaka OKITA
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Publication number: 20150205161Abstract: If a black matrix is thinned down in order to increase the aperture ratio, color mixture is likely to occur in which during monochromatic representation a desired color from relevant sub-pixels and a different color from adjacent sub-pixels appear to be mixed together when viewed obliquely. A display device includes a display panel and a light source. The display panel includes an array substrate, an opposite substrate, and a liquid crystal layer. The opposite substrate includes a first light blocking layer and a colored layer. The array substrate includes a second light blocking layer and a signal wiring layer. The first light blocking layer, the second light blocking layer, and the signal wiring layer are disposed between sub-pixels of different colors. The second light blocking layer is disposed close to the liquid crystal layer. A distance between top surfaces of the first and second light blocking layers is decreased.Type: ApplicationFiled: January 22, 2015Publication date: July 23, 2015Applicant: Japan Display Inc.Inventors: Mitsutaka OKITA, Kazuhiro Nishiyama
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Patent number: 9030635Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first electrode, a stage including an electrode formation surface, a switching element, a second electrode and a first vertical alignment film. The second substrate includes a third electrode and a second vertical alignment film. The electrode formation surface is positioned closer to the second substrate than a portion of the first vertical alignment film, which opposes the first electrode.Type: GrantFiled: September 13, 2013Date of Patent: May 12, 2015Assignee: Japan Display Inc.Inventors: Emi Higano, Mitsutaka Okita, Daiichi Suzuki, Kenji Nakao, Kazuhiro Nishiyama
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Publication number: 20150097192Abstract: A display device is configured that the common electrode wiring layer is divided in a source wiring layer direction, the metal wiring layer is disposed above the source wiring layer at a position in contact with the upper part of the common electrode wiring layer, and the metal wiring layer is not disposed at a position where the common electrode wiring layer is divided. Alternatively, the metal wiring layer is not disposed at a position between the same colors as those at the division position of the common electrode wiring layer.Type: ApplicationFiled: October 7, 2014Publication date: April 9, 2015Inventors: Shigesumi ARAKI, Mitsutaka OKITA, Kazuhiro NISHIYAMA, Yoshitoshi KIDA, Koji ISHIZAKI, Kohei AZUMI, Hiroshi MIZUHASHI
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Publication number: 20150042912Abstract: According to one embodiment, a liquid crystal display apparatus includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first electrode, a wall portion, a switching element, a second electrode and a vertical alignment film. The second substrate includes a third electrode and a second vertical alignment film. The second electrode includes a wall electrode provided on a wall electrode formation surface forming a side surface of the wall portion.Type: ApplicationFiled: August 8, 2014Publication date: February 12, 2015Applicant: Japan Display Inc.Inventors: Emi Higano, Mitsutaka Okita, Daiichi Suzuki, Kazuhiro Nishiyama