Patents by Inventor Hirondo Nakatogawa
Hirondo Nakatogawa 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: 11874572Abstract: According to one embodiment, an electronic device includes an imaging device, and a liquid crystal panel including a display portion overlapping the imaging device, wherein the liquid crystal panel includes a first pixel overlapping the imaging device, an opening portion provided in the first pixel, a second pixel adjacent to the first pixel, and a third pixel adjacent to the second pixel, the third pixel includes a first coloring layer, a second coloring layer and a third coloring layer, and the second pixel does not include the coloring layer or includes a transparent resinous layer.Type: GrantFiled: July 25, 2022Date of Patent: January 16, 2024Assignee: Japan Display Inc.Inventor: Hirondo Nakatogawa
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Publication number: 20230380243Abstract: According to one embodiment, an electronic apparatus includes a display panel on which a first pixel including a first light emitting element which emits light of a first color, a second pixel including a second light emitting element which emits light of a second color, and a third pixel including a third light emitting element which emits light of a third color are arranged, and an imaging device receiving light through the display panel. At least one of the first to third pixels which overlap with the imaging device in planar view is arranged with an interval different from an interval of the first to third pixels which do not overlap with the imaging device in planar view.Type: ApplicationFiled: May 16, 2023Publication date: November 23, 2023Inventor: Hirondo NAKATOGAWA
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Publication number: 20230284508Abstract: According to one embodiment, an electronic apparatus includes a display panel in which a first pixel including a first light emitting element configured to emit light of a first color, a second pixel including a second light emitting element configured to emit light of a second color, and a third pixel including a third light emitting element configured to emit light of a third color are arranged, and an imaging element configured to receive light via the display panel. The first to third pixels are disposed at positions overlapping the imaging element. The display panel includes a reflective layer that is not formed at a position facing the first light emitting element, and is formed at positions facing the second and third light emitting elements.Type: ApplicationFiled: March 1, 2023Publication date: September 7, 2023Inventor: Hirondo NAKATOGAWA
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Patent number: 11749224Abstract: According to one embodiment, a level shift circuit includes a first input terminal, a second input terminal, an output terminal, a first level shift unit, a first inverter, a second level shift unit, a second inverter, and first to fourth switching elements. The first level shift unit outputs a first output voltage and a reference voltage. The second level shift unit outputs the reference voltage and a second output voltage.Type: GrantFiled: March 16, 2022Date of Patent: September 5, 2023Assignee: Japan Display Inc.Inventor: Hirondo Nakatogawa
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Publication number: 20230221601Abstract: According to one embodiment, a camera module includes an imaging device, a liquid crystal panel having an incident light control area, and a lens. The liquid crystal panel has a plurality of electrodes located in the incident light control area. The imaging device acquires information of light transmitted through the incident light control area of the liquid crystal panel and the lens.Type: ApplicationFiled: March 16, 2023Publication date: July 13, 2023Inventors: Yoshiro AOKI, Akio TAKIMOTO, Hiroyuki KIMURA, Miharu MATSUSHIMA, Hirondo NAKATOGAWA, Hitoshi TANAKA
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Patent number: 11599000Abstract: According to one embodiment, a display panel includes scanning lines, signal lines, a pixel switching element, a pixel electrode, and a first control switch including first control switching elements. Each of the first control switching elements is composed of a transistor and includes a gate electrode, a source electrode, and a drain electrode. The scanning lines electrically connected to the gate electrodes of the first control switching elements are different from each other. The drain electrodes of the first control switching elements are electrically bundled and are connected to power source voltage output terminal of the first control switch.Type: GrantFiled: June 27, 2022Date of Patent: March 7, 2023Assignee: Japan Display Inc.Inventors: Hirondo Nakatogawa, Yoshiro Aoki
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Publication number: 20230058518Abstract: According to one embodiment, an imaging device includes a housing, an illumination device, an optical system that has at least one lens, a liquid crystal panel, and an imaging element that constitutes a camera together with the optical system. The incident light control area of the liquid crystal panel has a first region, a second region located so as to be shifted from the first region, and a third region other than the first region and the second region.Type: ApplicationFiled: August 17, 2022Publication date: February 23, 2023Inventor: Hirondo NAKATOGAWA
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Publication number: 20230053949Abstract: According to one embodiment, an electronic apparatus includes a display panel on which a plurality of pixels are arranged, and an image capturing element configured to receive light through the display panel. The display panel includes a line formed in an area overlapping with the image capturing element and connected to the pixels. The line is shaped to meander in a plan view.Type: ApplicationFiled: August 12, 2022Publication date: February 23, 2023Inventors: Hirondo NAKATOGAWA, Yoshiro AOKI
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Publication number: 20220413329Abstract: According to one embodiment, a display panel includes scanning lines, signal lines, a pixel switching element, a pixel electrode, and a first control switch including first control switching elements. Each of the first control switching elements is composed of a transistor and includes a gate electrode, a source electrode, and a drain electrode. The scanning lines electrically connected to the gate electrodes of the first control switching elements are different from each other. The drain electrodes of the first control switching elements are electrically bundled and are connected to power source voltage output terminal of the first control switch.Type: ApplicationFiled: June 27, 2022Publication date: December 29, 2022Inventors: Hirondo NAKATOGAWA, Yoshiro AOKI
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Publication number: 20220365389Abstract: According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area, an incident light control area, and an emitted light control area. The camera includes a light-entering surface and a light source. The liquid crystal panel is configured to selectively transmit visible light emitted from the light source in the emitted light control area and to selectively transmit visible light from outside in order to cause visible light to enter the camera from the outside in the incident light control area.Type: ApplicationFiled: July 26, 2022Publication date: November 17, 2022Inventors: Yoshiro AOKI, Akio TAKIMOTO, Nobuyuki SUZUKI, Yoshiomi YOSHII, Hirondo NAKATOGAWA
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Publication number: 20220357625Abstract: According to one embodiment, an electronic device includes an imaging device, and a liquid crystal panel including a display portion overlapping the imaging device, wherein the liquid crystal panel includes a first pixel overlapping the imaging device, an opening portion provided in the first pixel, a second pixel adjacent to the first pixel, and a third pixel adjacent to the second pixel, the third pixel includes a first coloring layer, a second coloring layer and a third coloring layer, and the second pixel does not include the coloring layer or includes a transparent resinous layer.Type: ApplicationFiled: July 25, 2022Publication date: November 10, 2022Inventor: Hirondo NAKATOGAWA
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Publication number: 20220301511Abstract: According to one embodiment, a level shift circuit includes a first input terminal, a second input terminal, an output terminal, a first level shift unit, a first inverter, a second level shift unit, a second inverter, and first to fourth switching elements. The first level shift unit outputs a first output voltage and a reference voltage. The second level shift unit outputs the reference voltage and a second output voltage.Type: ApplicationFiled: March 16, 2022Publication date: September 22, 2022Applicant: Japan Display Inc.Inventor: Hirondo NAKATOGAWA
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Patent number: 10997902Abstract: A display device includes M number of first signal lines, a first pixel arranged corresponding to each of the M number of first signal lines, N number of second signal lines, a second pixel arranged corresponding to each of the N number of second signal lines (each of M and N is a natural number of 2 or more), a third signal line provided in a first region capable of transforming in response to an external force, and electrically connected to at least any one of the M number of first signal lines, a first connection control circuit electrically connecting the third signal line to any one of the N number of second signal lines, and a drive circuit supplying a signal to the first signal line for driving the second pixel when the third signal line is electrically connected to any one of the second signal lines.Type: GrantFiled: July 26, 2019Date of Patent: May 4, 2021Assignee: Japan Display Inc.Inventor: Hirondo Nakatogawa
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Patent number: 10990133Abstract: A flat portion includes a corner side that is provided between the first and second sides and of which a tangent intersects the first and second sides. An inclined portion includes a first portion that is bent along the first side, a second portion that is bent along the second side, and a third portion that is bent from the corner side. A flexible display panel includes a notch that is provided between the first and second portions and of which a gap spreads in a direction away from the flat portion in a state where the flexible display panel is laid flat. Facing sides of the notch facing each other are adjacent to each other in a state where the flexible display panel is bent.Type: GrantFiled: January 9, 2020Date of Patent: April 27, 2021Assignee: Japan Display Inc.Inventor: Hirondo Nakatogawa
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Publication number: 20200142449Abstract: A flat portion includes a corner side that is provided between the first and second sides and of which a tangent intersects the first and second sides. An inclined portion includes a first portion that is bent along the first side, a second portion that is bent along the second side, and a third portion that is bent from the corner side. A flexible display panel includes a notch that is provided between the first and second portions and of which a gap spreads in a direction away from the flat portion in a state where the flexible display panel is laid flat. Facing sides of the notch facing each other are adjacent to each other in a state where the flexible display panel is bent.Type: ApplicationFiled: January 9, 2020Publication date: May 7, 2020Applicant: Japan Display Inc.Inventor: Hirondo NAKATOGAWA
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Publication number: 20200051495Abstract: A display device includes M number of first signal lines, a first pixel arranged corresponding to each of the M number of first signal lines, N number of second signal lines, a second pixel arranged corresponding to each of the N number of second signal lines (each of M and N is a natural number of 2 or more), a third signal line provided in a first region capable of transforming in response to an external force, and electrically connected to at least any one of the M number of first signal lines, a first connection control circuit electrically connecting the third signal line to any one of the N number of second signal lines, and a drive circuit supplying a signal to the first signal line for driving the second pixel when the third signal line is electrically connected to any one of the second signal lines.Type: ApplicationFiled: July 26, 2019Publication date: February 13, 2020Inventor: Hirondo NAKATOGAWA
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Patent number: 7746299Abstract: A display includes pixels arrange in a matrix. Each pixel includes a display element, a first drive current control circuit which is supplied with a first video signal and outputs a first drive current to the display element at magnitude corresponding to magnitude of the first video signal, and a second drive current control circuit which is supplied with a second video signal and outputs a second drive current to the display element at magnitude corresponding to magnitude of the second video signal. The display can set a ratio T1/T2 larger than 1, wherein T1 represents a time period over which the first drive current control circuit can output the first drive current to the display element, and T2 represents a time period over which the second drive current control circuit can output the second drive current to the display element.Type: GrantFiled: January 30, 2006Date of Patent: June 29, 2010Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Yoshiro Aoki, Hirondo Nakatogawa
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Patent number: 7333079Abstract: In an active matrix organic EL display including a drive control element which has a first terminal connected to a first power supply terminal, a control terminal, and a second terminal which outputs a driving current having a magnitude corresponding to the voltage between the first terminal and the control terminal, a capacitor which has one electrode connected to the control terminal and can maintain the voltage between the first terminal and the control terminal constant, and an organic EL element connected between the second terminal and a second power supply terminal, a plurality of switches connected in series are used as switches between the second terminal and the control terminal to obtain a perfect nonconductive state, and the switch on the control terminal side is set in the nonconductive state earlier than the remaining switch, thereby decreasing the potential shift amount generated by the capacitance of the switches themselves.Type: GrantFiled: July 22, 2005Date of Patent: February 19, 2008Assignee: Toshiba Matsushita Display Technology Co., Ltd.Inventors: Makoto Shibusawa, Yoshiro Aoki, Hirondo Nakatogawa
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Publication number: 20060290622Abstract: There are provided pixel units arrayed in a matrix, and a signal line driving circuit. The signal line driving circuit divides a 1 frame into a first period in which a video signal is supplied to the pixel unit of a high gray level and a second period in which a video signal is supplied to the pixel unit of a low gray level, supplies in the first period a video signal current, which has a current value that is A-times (A>0) higher than a current value corresponding to high-gray-level display, to the pixel unit of the high gray level, and supplies in the second period a video signal current, which has a current value that is N-times (N>A) higher than a current value corresponding to low-gray-level display, to the pixel unit of the low gray level, thus writing the video signal in the pixel unit.Type: ApplicationFiled: June 26, 2006Publication date: December 28, 2006Inventor: Hirondo NAKATOGAWA
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Publication number: 20060202919Abstract: A display includes pixels arrange in a matrix. Each pixel includes a display element, a first drive current control circuit which is supplied with a first video signal and outputs a first drive current to the display element at magnitude corresponding to magnitude of the first video signal, and a second drive current control circuit which is supplied with a second video signal and outputs a second drive current to the display element at magnitude corresponding to magnitude of the second video signal. The display can set a ratio T1/T2 larger than 1, wherein T1 represents a time period over which the first drive current control circuit can output the first drive current to the display element, and T2 represents a time period over which the second drive current control circuit can output the second drive current to the display element.Type: ApplicationFiled: January 30, 2006Publication date: September 14, 2006Inventors: Yoshiro Aoki, Hirondo Nakatogawa