Patents by Inventor Kohji Yabuta
Kohji Yabuta 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: 20210004095Abstract: A touchscreen panel module includes: a separation film removable, a first adhesive layer, a touch-sensor unit shaped in a form of a film and detecting an input position, and a protective film for protecting the touch-sensor unit stacked on top of another in stated order; and an exposure portion partially exposing a surface of the touch-sensor unit from the separation film and the first adhesive layer.Type: ApplicationFiled: June 29, 2020Publication date: January 7, 2021Inventors: RYO MATSUDA, KOHJI YABUTA
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Patent number: 10725600Abstract: A position input device includes electrodes formed of metal with a belt-like shape, extended along a first direction, and arranged with a space therebetween along a second direction that is orthogonal to the first direction, lines each electrically connected to one end of each of the electrodes in the first direction to receive a signal, dummy electrodes formed of metal with a belt-like shape and each disposed in a space between the electrodes that are adjacent, and dummy lines each coupled to an end of each of the dummy electrodes in the first direction in an electrically disconnected state. The electrodes, the lines, the dummy electrodes, and the dummy lines each include a front side surface and a back side surface in a plane along the first direction and the second direction, and at least one of the front side surface and the back side surface is blackened.Type: GrantFiled: June 7, 2019Date of Patent: July 28, 2020Assignee: SHARP KABUSHIKI KAISHAInventors: Yuhji Saai, Kohji Yabuta, Takeshi Kameda, Ryo Matsuda
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Publication number: 20190391705Abstract: A position input device includes electrodes formed of metal with a belt-like shape, extended along a first direction, and arranged with a space therebetween along a second direction that is orthogonal to the first direction, lines each electrically connected to one end of each of the electrodes in the first direction to receive a signal, dummy electrodes formed of metal with a belt-like shape and each disposed in a space between the electrodes that are adjacent, and dummy lines each coupled to an end of each of the dummy electrodes in the first direction in an electrically disconnected state. The electrodes, the lines, the dummy electrodes, and the dummy lines each include a front side surface and a back side surface in a plane along the first direction and the second direction, and at least one of the front side surface and the back side surface is blackened.Type: ApplicationFiled: June 7, 2019Publication date: December 26, 2019Inventors: Yuhji SAAI, Kohji YABUTA, Takeshi KAMEDA, Ryo MATSUDA
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Publication number: 20190384455Abstract: A touch panel display device includes a display panel and a touch panel. The touch panel includes a plurality of first electrodes, at least one set of auxiliary electrodes, and a plurality of second electrodes. The touch panel further includes a plurality of first wires connected to ends of the plurality of first electrodes and the at least one set of auxiliary electrodes, and a plurality of second wires connected to ends of the plurality of second electrodes. Some of the plurality of first electrodes and the remaining electrodes have ends opposite to each other in an extending direction of the first electrodes and respectively connected to the first wires. The one set of auxiliary electrodes are provided between the first electrodes adjacent to each other and having opposite ends connected to the first wires, and have opposite ends connected to corresponding ones of the first wires.Type: ApplicationFiled: June 11, 2019Publication date: December 19, 2019Inventors: Takeshi KAMEDA, Kohji YABUTA, Yuhji SAAI, Ryo MATSUDA
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Patent number: 10175834Abstract: A touch panel (a position input device) includes a trace group including traces arranged at intervals, and an electrode portion including a driving electrode and a detection electrode. The traces, the driving electrode, and the detection electrode are made of a light transmissive conductive film. The driving electrode and the detection electrode are arranged adjacent to the trace group and include a slit extending along the traces.Type: GrantFiled: January 8, 2015Date of Patent: January 8, 2019Assignee: Sharp Kabushiki KaishaInventors: Tomotoshi Tsujioka, Shinichi Miyazaki, Kohji Yabuta, Mikihiro Noma
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Patent number: 9971439Abstract: A configuration of a touch-panel-equipped display device in which the occurrence of moire can be suppressed is provided. A touch-panel-equipped display device (1) includes: a color filter layer (121) that includes a plurality of pixels (PX) arranged in matrix along a first direction and a second direction that intersect at a right angle; and a sensor pattern layer (1220) that includes a plurality of electrodes (1220) arranged along the second direction at a predetermined sensor interval (SY) and is disposed so as to overlap the color filter layer (121) in a plan view. Each of the plurality of pixels (PX) includes n color filters (121R, 121G, 121B) that transmit light in different wavelength regions from one another, where n represents an integer of 3 or more. The n color filters are arranged at predetermined subpixel intervals (CSFY) along the second direction.Type: GrantFiled: February 26, 2015Date of Patent: May 15, 2018Assignee: SHARP KABUSHIKI KAISHAInventors: Takatoshi Kira, Tomotoshi Tsujioka, Shinichi Miyazaki, Kohji Yabuta
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Publication number: 20170083136Abstract: A configuration of a touch-panel-equipped display device in which the occurrence of moire can be suppressed is provided. A touch-panel-equipped display device (1) includes: a color filter layer (121) that includes a plurality of pixels (PX) arranged in matrix along a first direction and a second direction that intersect at a right angle; and a sensor pattern layer (1220) that includes a plurality of electrodes (1220) arranged along the second direction at a predetermined sensor interval (SY) and is disposed so as to overlap the color filter layer (121) in a plan view. Each of the plurality of pixels (PX) includes n color filters (121R, 121G, 121B) that transmit light in different wavelength regions from one another, where n represents an integer of 3 or more. The n color filters are arranged at predetermined subpixel intervals (CSFY) along the second direction.Type: ApplicationFiled: February 26, 2015Publication date: March 23, 2017Inventors: Takatoshi KIRA, Tomotoshi TSUJIOKA, Shinichi MIYAZAKI, Kohji YABUTA
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Patent number: 9529462Abstract: A touch panel (2) includes: a glass substrate (4); X-direction electrodes and Y-direction electrodes (14) provided above the glass substrate (4); lines (15) provided above the glass substrate (4) and electrically connected with the X- and Y-direction electrodes (14); an insulating resin layer (12) covering the X- and Y-direction electrodes (14) and lines (15); and a conductive layer (23) provided above the insulating resin layer (12) to allow static electricity entering the panel from the outside to flow therethrough.Type: GrantFiled: October 28, 2013Date of Patent: December 27, 2016Assignee: Sharp Kabushiki KaishaInventors: Masayuki Hata, Kohji Yabuta, Kosuke Nagata, Shinichi Miyazaki, Tomotoshi Tsujioka, Mikihiro Noma
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Publication number: 20160299603Abstract: A touch panel (a position input device) includes a trace group including traces arranged at intervals, and an electrode portion including a driving electrode and a detection electrode. The traces, the driving electrode, and the detection electrode are made of a light transmissive conductive film. The driving electrode and the detection electrode are arranged adjacent to the trace group and include a slit extending along the traces.Type: ApplicationFiled: January 8, 2015Publication date: October 13, 2016Applicant: Sharp Kabushiki KaishaInventors: Tomotoshi TSUJIOKA, Shinichi MIYAZAKI, Kohji YABUTA, Mikihiro NOMA
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Patent number: 9316858Abstract: A liquid crystal display device includes a liquid crystal display panel, a functional panel, a photo curable adhesive, a transparent electrode, and a light blocking line. The liquid crystal panel includes a display area to display an image and a non-display area surrounding the display area. The functional panel is attached to the liquid crystal panel, and includes a display overlapping area overlapping with the display area and a display non-overlapping area overlapping with the non-display area in a plan view. The photo curable adhesive is arranged between the panels and cured by light applied thereto. The transparent electrode is arranged in the display overlapping area and made of light transmissive conductive material. The light blocking line is arranged in the display non-overlapping area and made of light shielding metal material. The light blocking line partially has a light-transmission cutout that is configured to allow the light to pass therethrough.Type: GrantFiled: April 13, 2012Date of Patent: April 19, 2016Assignee: SHARP KABUSHIKI KAISHAInventors: Kohji Yabuta, Tomotoshi Tsujioka, Kosuke Nagata, Mikihiro Noma, Masayuki Hata, Kiyoshi Inada, Hideaki Takizawa, Masahiro Kihara
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Publication number: 20150253809Abstract: A touch panel (2) includes: a glass substrate (4); X-direction electrodes and Y-direction electrodes (14) provided above the glass substrate (4); lines (15) provided above the glass substrate (4) and electrically connected with the X- and Y-direction electrodes (14); an insulating resin layer (12) covering the X- and Y-direction electrodes (14) and lines (15); and a conductive layer (23) provided above the insulating resin layer (12) to allow static electricity entering the panel from the outside to flow therethrough.Type: ApplicationFiled: October 28, 2013Publication date: September 10, 2015Inventors: Masayuki Hata, Kohji Yabuta, Kosuke Nagata, Shinichi Miyazaki, Tomotoshi Tsujioka, Mikihiro Noma
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Patent number: 8797297Abstract: Disclosed is a liquid crystal display device (1) that is provided with a function of identifying the position of a subject to be detected (finger) in an image display region (12b) of a liquid crystal panel (10) by emitting light to the image display region (12b) and by detecting light reflected by the subject to be detected (finger). The liquid crystal display device is provided with a backlight (30) and a front light-emitting unit (40), which radiate light to the image display region (12b). The backlight (30) is disposed on the side of the liquid crystal panel (10) opposite to the image display surface (10a), and emits light to the image display region (12b) from the rear side of the liquid crystal panel (10). The front light-emitting unit (40) is disposed outside of the image display region (12b), and emits light to the image display region (12b) without having the liquid crystal panel (10) therebetween.Type: GrantFiled: January 26, 2011Date of Patent: August 5, 2014Assignee: Sharp Kabushiki KaishaInventors: Kohji Yabuta, Mikihiro Noma
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Publication number: 20140043569Abstract: A liquid crystal display device includes a liquid crystal display panel, a functional panel, a photo curable adhesive, a transparent electrode, and a light blocking line. The liquid crystal panel includes a display area to display an image and a non-display area surrounding the display area. The functional panel is attached to the liquid crystal panel, and includes a display overlapping area overlapping with the display area and a display non-overlapping area overlapping with the non-display area in a plan view. The photo curable adhesive is arranged between the panels and cured by light applied thereto. The transparent electrode is arranged in the display overlapping area and made of light transmissive conductive material. The light blocking line is arranged in the display non-overlapping area and made of light shielding metal material. The light blocking line partially has a light-transmission cutout that is configured to allow the light to pass therethrough.Type: ApplicationFiled: April 13, 2012Publication date: February 13, 2014Applicant: SHARP KABUSHIKI KAISHAInventors: Kohji Yabuta, Tomotoshi Tsujioka, Kosuke Nagata, Mikihiro Noma, Masayuki Hata, Kiyoshi Inada, Hideaki Takizawa, Masahiro Kihara
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Publication number: 20130027354Abstract: Disclosed is a liquid crystal display device (1) that is provided with a function of identifying the position of a subject to be detected (finger) in an image display region (12b) of a liquid crystal panel (10) by emitting light to the image display region (12b) and by detecting light reflected by the subject to be detected (finger). The liquid crystal display device is provided with a backlight (30) and a front light-emitting unit (40), which radiate light to the image display region (12b). The backlight (30) is disposed on the side of the liquid crystal panel (10) opposite to the image display surface (10a), and emits light to the image display region (12b) from the rear side of the liquid crystal panel (10). The front light-emitting unit (40) is disposed outside of the image display region (12b), and emits light to the image display region (12b) without having the liquid crystal panel (10) therebetween.Type: ApplicationFiled: January 26, 2011Publication date: January 31, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Kohji Yabuta, Mikihiro Noma
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Publication number: 20130010496Abstract: In an edge-light type LED backlight in which visible light LED light sources and non-visible light LED light sources are mounted on a FPC in a side-view type manner and light enters a light guide plate through a side surface, in order that visible light and non-visible light are efficiently guided into the light guide plate and the efficiency of light emission is enhanced, reflective members and that reflect and guide both the visible light and the non-visible light to an entrance portion are provided on a first surface side corresponding to the mounting surface side of the FPC and a second surface side corresponding to the back surface side of the FPC.Type: ApplicationFiled: January 24, 2011Publication date: January 10, 2013Applicant: SHARP KABUSHIKI KAISHAInventors: Katsuhiko Higashi, Kohji Yabuta, Mikihiro Noma, Takehiro Murao
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Patent number: 8350973Abstract: A liquid crystal display device (100) of the present invention includes: a liquid crystal panel (20) including: an active matrix substrate (21); a counter substrate (22); and a liquid crystal layer (23) provided between the active matrix substrate (21) and the counter substrate (22); and a backlight (10) illuminating the liquid crystal panel. The liquid crystal display device (100) has an area sensor function for detecting an external input position, and further includes a reflectance changing section (50) that reduces a reflectance of light from the backlight (10) in response to application of pressure on a panel surface (100a). The reflectance changing section (50) is configured so that in a state where no pressure is applied on the panel surface (100a), an air layer (50c) is formed between two elastic films (50a and 50b) whereas in a state where pressure is applied on the panel surface (100a), the two elastic films (50a and 50b) contact each other.Type: GrantFiled: April 17, 2009Date of Patent: January 8, 2013Assignee: Sharp Kabushiki KaishaInventors: Shinichi Miyazaki, Norikazu Hohshi, Masakazu Wada, Kengo Takahama, Toshiaki Nakagawa, Kohji Yabuta, Masayuki Hata
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Publication number: 20120194413Abstract: Disclosed is a display device in which deterioration in resolution may be suppressed when an image is being read, by reducing the diffusion of reflected light from a printed material, and in which a wide viewing angle may be achieved when an image is being displayed. The display device is provided with a display panel for reading and displaying image data. The display panel has a plurality of pixels provided with light receiving elements. A plate-shaped lens member is arranged on the display surface side of the display panel. A transparent section formed of material having a high refractive index and a colored section formed of material having a low refractive index are arranged alternately in the lens member when seen in plan view. In the cross section in the thickness direction, the transparent section has a trapezoidal shape which is wider on the display panel side, and the colored section has a shape which is narrower on the display panel side.Type: ApplicationFiled: May 12, 2010Publication date: August 2, 2012Applicant: SHARP KABUSHIKI KAISHAInventors: Kohji Yabuta, Mikihiro Noma, Takao Takada
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Publication number: 20110298757Abstract: A touch panel input system of the present invention includes a touch panel integrated liquid crystal display device (100) and an input pen (60) for carrying out an input with respect to the liquid crystal display device (100). The liquid crystal display device (100) includes a liquid crystal panel (20) that is provided with a plurality of light sensor elements (30) and a backlight (10) that is provided with an infrared LED (12) which emits infrared light. In the liquid crystal panel (20), an infrared light transmitting section (24a) for selectively transmitting light in an infrared region is provided above a corresponding one of the plurality of light sensor elements (30). An infrared light reflecting member (62) is provided at a tip of the input pen (60). This allows obtainment of a touch panel input system which enables detection with high accuracy.Type: ApplicationFiled: October 28, 2009Publication date: December 8, 2011Inventors: Masayuki Hata, Kohji Yabuta, Toshiaki Nakagawa, Toshiyuki Yoshimizu
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Publication number: 20110128467Abstract: A liquid crystal display device (100) of the present invention includes: a liquid crystal panel (20) including: an active matrix substrate (21); a counter substrate (22); and a liquid crystal layer (23) provided between the active matrix substrate (21) and the counter substrate (22); and a backlight (10) illuminating the liquid crystal panel. The liquid crystal display device (100) has an area sensor function for detecting an external input position, and further includes a reflectance changing section (50) that reduces a reflectance of light from the backlight (10) in response to application of pressure on a panel surface (100a). The reflectance changing section (50) is configured so that in a state where no pressure is applied on the panel surface (100a), an air layer (50c) is formed between two elastic films (50a and 50b) whereas in a state where pressure is applied on the panel surface (100a), the two elastic films (50a and 50b) contact each other.Type: ApplicationFiled: April 17, 2009Publication date: June 2, 2011Applicant: SHARP KABUSHIKI KAISHAInventors: Shinichi Miyazaki, Norikazu Hohshi, Masakazu Wada, Kengo Takahama, Toshiaki Nakagawa, Kohji Yabuta, Masayuki Hata