Patents by Inventor Kazuyuki Sunohara
Kazuyuki Sunohara 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: 10153244Abstract: According to an aspect, a display device includes: a substrate including a display region and a non-display region surrounding the display region; at least one driver IC including connecting terminals with a first surface fixed to face the non-display region; first wires supplying a signal to the display region; first bumps connected with the first wires; second wires transferring a signal to and from outside; second bumps connected with the second wires; and inspection wires. The connecting terminals of the driver IC include first connecting terminals overlapping the first or second bumps in plan view, and second connecting terminals not overlapping the first or second bumps in plan view. The inspection wires include a connecting conductor between themselves and at least one of the second connecting terminals. The inspection wires are pulled out to an outside of the driver IC in plan view.Type: GrantFiled: March 24, 2017Date of Patent: December 11, 2018Assignee: Japan Display Inc.Inventors: Tetsuya Okamae, Shinji Yamakawa, Kazuyuki Sunohara
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Publication number: 20170285376Abstract: According to an aspect, a display device includes: a substrate including a display region and a non-display region surrounding the display region; at least one driver IC including connecting terminals with a first surface fixed to face the non-display region; first wires supplying a signal to the display region; first bumps connected with the first wires; second wires transferring a signal to and from outside; second bumps connected with the second wires; and inspection wires. The connecting terminals of the driver IC include first connecting terminals overlapping the first or second bumps in plan view, and second connecting terminals not overlapping the first or second bumps in plan view. The inspection wires include a connecting conductor between themselves and at least one of the second connecting terminals. The inspection wires are pulled out to an outside of the driver IC in plan view.Type: ApplicationFiled: March 24, 2017Publication date: October 5, 2017Inventors: Tetsuya OKAMAE, Shinji YAMAKAWA, Kazuyuki SUNOHARA
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Publication number: 20150286089Abstract: An LCD device according to a group of embodiments comprises: a display panel comprising array and counter substrates, as well as a liquid-crystal layer and a sealing material that are interposed between the substrates adhered with each other; a light illuminating the display panel; a framework covering at least front and end faces of a peripheral part of the display panel; and a resin layer that covers the end faces of the display panel throughout their whole dimensions in a thickness direction of the display panel; and contour of the resin layer on its outside being smoothly curved along the thickness direction, in a section cut in the thickness direction.Type: ApplicationFiled: April 7, 2015Publication date: October 8, 2015Applicant: Japan Display Inc.Inventors: Ayano SOEJIMA, Kazuyuki Sunohara, Daigo Fujita, Shin Morita
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Patent number: 9082360Abstract: A liquid crystal display device includes an array substrate, a counter substrate and a liquid crystal layer held between the array substrate and the counter substrate. A display portion having a plurality of pixels arranged in a matrix is formed of the substrates and the liquid crystal layer. Each of the pixels includes a pixel electrode and a counter electrode arranged opposing to the pixel electrode. A driving portion is formed on the array substrate to supply a pixel voltage to the pixel electrode. A correcting circuit is formed on the array substrate to correct the voltage supplied to the pixel electrode by adding a predetermined DC voltage to the voltage supplied to the pixel electrode corresponding to gradations to be displayed in the pixel.Type: GrantFiled: September 8, 2010Date of Patent: July 14, 2015Assignee: JAPAN DISPLAY INC.Inventors: Yukio Tanaka, Tetsuya Kawamura, Kenji Nakao, Atsushi Mizuyoshi, Kazutaka Fukushima, Kazuyuki Sunohara, Hidetaka Noriyama
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Patent number: 8610856Abstract: According to one embodiment, a liquid crystal display device includes a first gate line, a second gate line, a common line, a first electrode, an insulation film, and a second electrode. The common line includes a first edge, which has a non-linear shape and is formed at a first distance from the first gate line, and a second edge, which is formed at a second distance, which is shorter than the first distance, from the second gate line. The first electrode is disposed between the first gate line and the second gate line and put in contact with the common line. The insulation film is disposed above the first electrode. The second electrode is disposed above the insulation film, opposed to the first electrode, extending immediately above the first edge of the common line, and having a slit formed therein.Type: GrantFiled: July 5, 2011Date of Patent: December 17, 2013Assignee: Japan Display Inc.Inventors: Kazuyuki Sunohara, Youichi Asakawa
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Patent number: 8363192Abstract: A liquid crystal display device includes a liquid crystal display panel having an active area in which pixels are arranged in a matrix including first and second signal lines and connecting lines. The second signal lines and connecting lines extend in a column direction in the active area. The first signal lines extend in a row direction so as to cross the second signal lines and the connecting lines. The first signal lines are connected to the connecting lines through contact portions provided at the cross area where the first signal lines cross with the connecting lines interposing an insulating layer. The second signal lines and the connecting lines are pulled out from the active area to a signal supply source provided at outside of the active area without detouring in a peripheral region of the display panel.Type: GrantFiled: September 17, 2009Date of Patent: January 29, 2013Assignee: Japan Display Central Inc.Inventors: Kazuhiro Takahashi, Masanobu Nonaka, Masanori Ando, Kazuyuki Sunohara
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Publication number: 20120019759Abstract: According to one embodiment, a liquid crystal display device includes a first gate line, a second gate line, a common line, a first electrode, an insulation film, and a second electrode. The common line includes a first edge, which has a non-linear shape and is formed at a first distance from the first gate line, and a second edge, which is formed at a second distance, which is shorter than the first distance, from the second gate line. The first electrode is disposed between the first gate line and the second gate line and put in contact with the common line. The insulation film is disposed above the first electrode. The second electrode is disposed above the insulation film, opposed to the first electrode, extending immediately above the first edge of the common line, and having a slit formed therein.Type: ApplicationFiled: July 5, 2011Publication date: January 26, 2012Inventors: Kazuyuki SUNOHARA, Youichi ASAKAWA
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Publication number: 20110122114Abstract: A liquid crystal display device includes an array substrate, a counter substrate and a liquid crystal layer held between the array substrate and the counter substrate. A display portion having a plurality of pixels arranged in a matrix is formed of the substrates and the liquid crystal layer. Each of the pixels includes a pixel electrode and a counter electrode arranged opposing to the pixel electrode. A driving portion is formed on the array substrate to supply a pixel voltage to the pixel electrode. A correcting circuit is formed on the array substrate to correct the voltage supplied to the pixel electrode by adding a predetermined DC voltage to the voltage supplied to the pixel electrode corresponding to gradations to be displayed in the pixel.Type: ApplicationFiled: September 8, 2010Publication date: May 26, 2011Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Yukio Tanaka, Tetsuya Kawamura, Kenji Nakao, Atsushi Mizuyoshi, Kazutaka Fukushima, Kazuyuki Sunohara, Hidetaka Noriyama
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Publication number: 20100066967Abstract: A liquid crystal display device includes a liquid crystal display panel having an active area in which pixels are arranged in a matrix including first and second signal lines and connecting lines. The second signal lines and connecting lines extend in a column direction in the active area. The first signal lines extend in a row direction so as to cross the second signal lines and the connecting lines. The first signal lines are connected to the connecting lines through contact portions provided at the cross area where the first signal lines cross with the connecting lines interposing an insulating layer. The second signal lines and the connecting lines are pulled out from the active area to a signal supply source provided at outside of the active area without detouring in a peripheral region of the display panel.Type: ApplicationFiled: September 17, 2009Publication date: March 18, 2010Applicant: Toshiba Mobile Display Co., Ltd.Inventors: Kazuhiro TAKAHASHI, Masanobu Nonaka, Masanori Ando, Kazuyuki Sunohara
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Publication number: 20070126358Abstract: A top emission organic EL display includes an array substrate including an insulating substrate, organic EL elements which are arranged on a main surface of the insulating substrate, and an outcoupling layer which extracts light components propagating in in-plane direction while causing multiple-beam interference from the organic EL element to make the light components travel in front of the organic EL element, and a sealing substrate facing and spaced apart from the organic EL elements. The display forms an enclosed space filled with an inert gas or evacuated between the sealing substrate and an element portion of the array substrate corresponding to the organic EL element. A distance between the element portion and the sealing substrate is 100 nm or longer.Type: ApplicationFiled: February 1, 2007Publication date: June 7, 2007Inventors: Satoshi OKUTANI, Hiroshi Sano, Kazuyuki Sunohara
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Patent number: 6940575Abstract: Provided is a liquid crystal display including an array substrate with first to third comb-shaped electrodes on a main surface thereof, a counter substrate with a common electrode that faces the first to third comb-shaped electrodes on a main surface thereof, a liquid crystal layer sandwiched between the array and counter substrates, and a color filter supported by one of the array and counter substrates and including first to third coloring layer facing the first to third comb-shaped electrodes, respectively, wherein the first comb-shaped electrode is different in shape and/or orientation from the second and third comb-shaped electrodes.Type: GrantFiled: September 16, 2004Date of Patent: September 6, 2005Assignee: Kabushiki Kaisha ToshibaInventors: Kazuyuki Sunohara, Yasushi Kawata, Yuuzo Hisatake, Kisako Ninomiya, Natsuko Fujiyama, Akio Murayama, Takeshi Yamaguchi
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Publication number: 20050036085Abstract: Provided is a liquid crystal display including an array substrate with first to third comb-shaped electrodes on a main surface thereof, a counter substrate with a common electrode that faces the first to third comb-shaped electrodes on a main surface thereof, a liquid crystal layer sandwiched between the array and counter substrates, and a color filter supported by one of the array and counter substrates and including first to third coloring layer facing the first to third comb-shaped electrodes, respectively, wherein the first comb-shaped electrode is different in shape and/or orientation from the second and third comb-shaped electrodes.Type: ApplicationFiled: September 16, 2004Publication date: February 17, 2005Inventors: Kazuyuki Sunohara, Yasushi Kawata, Yuuzo Hisatake, Kisako Ninomiya, Natsuko Fujiyama, Akio Murayama, Takeshi Yamaguchi
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Patent number: 6833899Abstract: Provided is a liquid crystal display including an array substrate with first to third comb-shaped electrodes on a main surface thereof, a counter substrate with a common electrode that faces the first to third comb-shaped electrodes on a main surface thereof, a liquid crystal layer sandwiched between the array and counter substrates, and a color filter supported by one of the array and counter substrates and including first to third coloring layer facing the first to third comb-shaped electrodes, respectively, wherein the first comb-shaped electrode is different in shape and/or orientation from the second and third comb-shaped electrodes.Type: GrantFiled: April 18, 2003Date of Patent: December 21, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Kazuyuki Sunohara, Yasushi Kawata, Yuuzo Hisatake, Kisako Ninomiya, Natsuko Fujiyama, Akio Murayama, Takeshi Yamaguchi
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Publication number: 20040100607Abstract: There is provided a liquid crystal display including a liquid crystal display cell, a circularly polarizing device facing the liquid crystal display cell, and a quarter wave plate interposed between the liquid crystal cell and the circularly polarizing device, wherein each pixel electrode of the liquid crystal display cell includes comb-shaped conductive layers differing from each other in the longitudinal direction of the comb-teeth and electrically connected to each other.Type: ApplicationFiled: August 12, 2003Publication date: May 27, 2004Inventors: Yasushi Kawata, Akio Murayama, Kazuyuki Sunohara, Yuuzo Hisatake, Takeshi Yamaguchi, Kisako Ninomiya, Natsuko Fujiyama
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Patent number: 6724457Abstract: A liquid crystal display device comprises a first substrate, a columnar spacer formed on the first substrate and exhibiting light shielding properties, an alignment film formed to covet at least a part of the columnar spacer, a second substrate arranged to face the first substrate with a predetermined gap provided by the columnar spacer between the first and second substrates, and a liquid crystal material arranged within the gap. The columnar spacer is tapered in the forward direction as viewed from the first substrate in that portion of the columnar spacer which is positioned closest to the second substrate and has the largest diameter portion in the region other than that region of the columnar spacer which is positioned closest to the first substrate.Type: GrantFiled: November 9, 2000Date of Patent: April 20, 2004Assignee: Kabushiki Kaisha ToshibaInventors: Kazuyuki Sunohara, Atsuyuki Manabe, Hiroyuki Nagata, Natsuko Maya, Akiko Toriyama
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Publication number: 20040004690Abstract: A liquid-crystal display device comprises an array substrate having pixel electrodes disposed on a main surface thereof, a counter substrate having a counter electrode disposed to face the pixel electrodes on the main surface of the array substrate, and a liquid-crystal layer held between the counter substrate and the array substrate. A pixel between the pixel electrode and the counter electrode is composed of four domains located around a center point of the pixel. Each of the domains includes stronger electric field regions and weaker electric field regions arranged alternately such that liquid-crystal molecules in the domains present four anisotropic alignment patterns deviated from each other by about 90°.Type: ApplicationFiled: May 2, 2003Publication date: January 8, 2004Inventors: Takeshi Yamaguchi, Kisako Ninomiya, Yasushi Kawata, Yuuzo Hisatake, Kazuyuki Sunohara, Natsuko Fujiyama, Akio Murayama
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Publication number: 20030197819Abstract: Provided is a liquid crystal display including an array substrate with first to third comb-shaped electrodes on a main surface thereof, a counter substrate with a common electrode that faces the first to third comb-shaped electrodes on a main surface thereof, a liquid crystal layer sandwiched between the array and counter substrates, and a color filter supported by one of the array and counter substrates and including first to third coloring layer facing the first to third comb-shaped electrodes, respectively, wherein the first comb-shaped electrode is different in shape and/or orientation from the second and third comb-shaped electrodes.Type: ApplicationFiled: April 18, 2003Publication date: October 23, 2003Inventors: Kazuyuki Sunohara, Yasushi Kawata, Yuuzo Hisatake, Kisako Ninomiya, Natsuko Fujiyama, Akio Murayama, Takeshi Yamaguchi
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Patent number: 6580226Abstract: A flat panel display device comprises a pair of substrates facing each other, a spacer, made of photosensitive material, for providing a gap between the pair of substrates, and a display medium arranged in the gap. At least one of the pair of substrates has a lightproof region including a linear portion. The spacer is arranged in the linear portion of the lightproof region. The spacer has a shape a longitudinal axis of which extends along the linear portion and which has a recessed portion narrower than the linear portion.Type: GrantFiled: November 15, 2000Date of Patent: June 17, 2003Assignee: Kabushiki Kaisha ToshibaInventors: Atsuyuki Manabe, Takeshi Yamamoto, Hitoshi Hato, Kazuyuki Sunohara
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Publication number: 20010055080Abstract: A liquid crystal display device of this invention includes a yellow guest-host liquid crystal layer, a magenta guest-host liquid crystal layer, and a cyan guest-host liquid crystal layer. The absorption spectrum of each color has at least two absorption peaks, and the absorbance of the second largest absorption peak is 80% or more that of the largest absorption peak.Type: ApplicationFiled: March 5, 1997Publication date: December 27, 2001Inventors: KATSUYUKI NAITO, HIROKI IWANAGA, AIRA HOTTA, KAZUYUKI SUNOHARA
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Patent number: 6239777Abstract: A display device includes a light guiding fixed electrode portion formed of a transparent material for guiding light incident from an exterior to the surface portion having a transparent conductive layer and then emitting the light, a flexible conductive light shielding plate arranged to face the transparent conductive layer of the light guiding fixed electrode portion and having one end fixed to pass the emitted light therethrough, and an electrostatic force generating circuit for applying a potential difference between the conductive light shielding plate and the transparent conductive layer to generate electrostatic force between the transparent conductive layer and the conductive light shielding plate, wherein the conductive light shielding plate is displaced according to the electrostatic force with one end thereof set as an axis to shield the surface portion of the light guiding fixed electrode portion when the potential difference is applied between the conductive light shielding plate and the transparType: GrantFiled: July 21, 1998Date of Patent: May 29, 2001Assignee: Kabushiki Kaisha ToshibaInventors: Atsushi Sugahara, Kazuyuki Sunohara, Haruhiko Okumura