Patents by Inventor Masaya Tamaki
Masaya Tamaki 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: 20190130854Abstract: According to one embodiment, a display device, includes a first main pixel including first to third sub-pixels, a second main pixel including fourth to sixth sub-pixels, a display driver which produces video signals to be written to the respective sub-pixels of the first and second main pixels and supplies the video signals to the respective sub-pixels via signal lines, any one of the first to third sub-pixels and any one of the fourth to sixth sub-pixels sharing one of the signal lines.Type: ApplicationFiled: December 26, 2018Publication date: May 2, 2019Applicant: Japan Display Inc.Inventors: Masaya TAMAKI, Tsutomu Harada, Hirotaka Hayashi
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Publication number: 20190121187Abstract: According to one embodiment, a liquid crystal display comprising a first substrate, a second substrate opposed the first substrate, a liquid crystal layer between the first substrate and the second substrate, a light-shielding layer including a first light-shield formed along a first direction and a second light-shield formed along a second direction and crossing the first light-shield, and a spacer which maintains a gap between the first substrate and the second substrate, the spacer overlapping a crossing region where the first light-shield and the second light-shield cross each other and including an exposed region outside the light-shielding layer in a planar view.Type: ApplicationFiled: December 17, 2018Publication date: April 25, 2019Inventor: Masaya Tamaki
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Patent number: 10249251Abstract: According to an aspect, a display device includes: a display unit a plurality of pixels performing that perform color reproduction by combining outputs of sub-pixels; an illumination unit including a first light source, a second light source, and a third light source; a measuring unit that measures intensity of light included in external light other than the light from the illumination unit; and a control unit that controls the intensity of the light to be emitted from each of the first light source, the second light source, and the third light source and controls gradation values of the respective sub-pixels based on the intensity of the external light measured by the measuring unit.Type: GrantFiled: July 21, 2016Date of Patent: April 2, 2019Assignee: Japan Display Inc.Inventors: Tatsuya Yata, Takayuki Nakanishi, Masaya Tamaki
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Publication number: 20190066634Abstract: A display device includes: sub-pixels each including a memory block including memories; memory selection line groups each including memory selection lines electrically coupled to the memory blocks in the sub-pixels that belong to the corresponding row; a memory selection circuit configured to concurrently output memory selection signals to the memory selection line groups; a potential line; a conduction switch provided for at least one memory in the memory block on a one-to-one basis; and an operating-memory conduction circuit configured to output, to the conduction switch, an operation signal for determining whether to electrically couple or uncouple the potential line and the corresponding one memory. Each memory is capable of storing sub-pixel data therein when being coupled to the potential line. Each sub-pixel displays an image based on the sub-pixel data stored in one memory in the sub-pixel according to the memory selection line supplied with the memory selection signal.Type: ApplicationFiled: August 8, 2018Publication date: February 28, 2019Inventors: Masaya TAMAKI, Yutaka MITSUZAWA, Takayuki NAKAO, Yutaka OZAWA
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Patent number: 10210825Abstract: According to one embodiment, a display device, includes a first main pixel including first to third sub-pixels, a second main pixel including fourth to sixth sub-pixels, a display driver which produces video signals to be written to the respective sub-pixels of the first and second main pixels and supplies the video signals to the respective sub-pixels via signal lines, any one of the first to third sub-pixels and any one of the fourth to sixth sub-pixels sharing one of the signal lines.Type: GrantFiled: March 21, 2016Date of Patent: February 19, 2019Assignee: Japan Display Inc.Inventors: Masaya Tamaki, Tsutomu Harada, Hirotaka Hayashi
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Patent number: 10191334Abstract: According to one embodiment, a liquid crystal display comprising a first substrate, a second substrate opposed the first substrate, a liquid crystal layer between the first substrate and the second substrate, a light-shielding layer including a first light-shield formed along a first direction and a second light-shield formed along a second direction and crossing the first light-shield, and a spacer which maintains a gap between the first substrate and the second substrate, the spacer overlapping a crossing region where the first light-shield and the second light-shield cross each other and including an exposed region outside the light-shielding layer in a planar view.Type: GrantFiled: March 9, 2017Date of Patent: January 29, 2019Assignee: Japan Display Inc.Inventor: Masaya Tamaki
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Patent number: 10191322Abstract: A display capable of obtaining high luminance in white display and an electronic unit are provided. The display includes: a reflective display panel; and an optical laminate disposed on the display panel, in which the optical laminate includes a plurality of anisotropic scattering films, and transmittances in a scattering central axis direction of two or more films of the plurality of anisotropic scattering films are different from each other.Type: GrantFiled: November 12, 2015Date of Patent: January 29, 2019Assignee: Japan Display Inc.Inventors: Masaya Tamaki, Yoko Fukunaga
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Publication number: 20190018537Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.Type: ApplicationFiled: September 7, 2018Publication date: January 17, 2019Inventors: Kazuyuki KOBAYASHI, Hayato KURASAWA, Hiroshi MIZUHASHI, Masaya TAMAKI, Takeo KOITO, Koji NOGUCHI
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Publication number: 20190005904Abstract: A display device includes: a plurality of sub-pixels each including a memory block; a clock signal output circuit configured to output a plurality of clock signals having different frequencies; a selection circuit configured to select one of the clock signals as a selected clock signal; a plurality of memory selection line groups provided for respective rows; a memory selection circuit configured to output a memory selection signal concurrently to the memory selection line groups in synchronization with the selected clock signal, the memory selection signal being a signal for selecting one from a plurality of memories in each of the memory blocks; a common electrode to which a common potential common to the sub-pixels is supplied; and a common-electrode driving circuit configured to switch the common potential in synchronization with the reference clock signal and output the switched common potential.Type: ApplicationFiled: June 27, 2018Publication date: January 3, 2019Inventors: Yutaka MITSUZAWA, Takayuki NAKAO, Yutaka OZAWA, Masaya TAMAKI
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Patent number: 10152168Abstract: According to one embodiment, a sensor-equipped display device includes a display panel, a detection electrode, a conductive member arranged at intervals from the display panel and the detection electrode, and controller. In a first sense period, the controller drives a common electrode of the display panel or the detection electrode and extracts input position data from the detection electrode. In a second sense period, the controller drives the conductive member and extracts first input pressure data from a first electrode, the controller drives a second electrode and extracts second input pressure data from the conductive member, or the controller drives a third electrode and extracts third input pressure data from the third electrode.Type: GrantFiled: May 24, 2016Date of Patent: December 11, 2018Assignee: Japan Display Inc.Inventors: Kazuyuki Kobayashi, Hayato Kurasawa, Hiroshi Mizuhashi, Masaya Tamaki, Takeo Koito, Koji Noguchi
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Patent number: 10139946Abstract: An input device includes a first substrate, a light-emitting element unit, and third conductive layers. The first substrate includes first and second surfaces. The light-emitting element unit includes: first conductive layers formed in one layer on the second surface side; second conductive layers formed in one layer on the second surface side different from the layer of the first conductive layers; and a luminescent layer provided between the first and the second conductive layers and electrically in contact therewith. The third conductive layers are formed to be insulated from the first and the second conductive layers and not to intersect with the second conductive layers in planar view, and are configured to detect a change in an electric field between the first and the third conductive layers depending on coordinates of a proximity object at a position overlapping with the first conductive layers and the first surface in planar view.Type: GrantFiled: April 29, 2016Date of Patent: November 27, 2018Assignee: Japan Display Inc.Inventors: Takayuki Nakanishi, Tatsuya Yata, Masaya Tamaki
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Publication number: 20180329543Abstract: An input device includes a first substrate, a first light-emitting element unit, and a third electrode unit. The first substrate has a first surface and a second surface. The first light-emitting element includes a first electrode unit formed on the second surface, a second electrode unit formed in a layer different from that of the first electrode unit, and a luminescent layer electrically in contact with at least a part of the first electrode unit and a part of the second electrode unit, and formed between the first electrode unit and the second electrode unit. The third electrode unit is insulated from the first electrode unit and detects a change in an electric field between the first electrode unit and the third electrode unit depending on coordinates of a proximity object present at a position overlapping with the first surface in planar view.Type: ApplicationFiled: July 25, 2018Publication date: November 15, 2018Inventors: Takayuki NAKANISHI, Masaya TAMAKI, Tatsuya YATA
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Publication number: 20180308446Abstract: A display device includes: a plurality of sub-pixels each including a memory block that includes a plurality of memories each of which is configured to store sub-pixel data; a plurality of memory selection line groups provided to respective rows and each including a plurality of memory selection lines electrically coupled to the corresponding memory blocks in the sub-pixels that belong to a corresponding row; a memory selection circuit configured to simultaneously output a memory selection signal to the memory selection line groups, the memory selection signal being a signal for selecting one from the plurality of memories in each of the memory blocks. In accordance with the memory selection lines supplied with the memory selection signal, the sub-pixels display an image based on the sub-pixel data stored in memories in the respective sub-pixels, the memories each being one of the plurality of memories in the corresponding sub-pixel.Type: ApplicationFiled: April 10, 2018Publication date: October 25, 2018Inventors: Yutaka Mitsuzawa, Takayuki Nakao, Masaya Tamaki, Yutaka Ozawa
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Publication number: 20180239188Abstract: A display device includes a display surface with pixels including four sub-pixels of four colors, and being arrayed in a matrix of a first viewing angle direction and a second viewing angle direction orthogonal thereto. The first viewing angle direction in a direction parallel to the display surface of a main viewing angle direction that intersects with the display surface. A reflective member, first substrate, a second substrate facing the first substrate, a color filter with filters of four colors corresponding to the four sub-pixels, and a scattering member is provided on the second substrate. For the color filter, a change in transmittance of the filters per pixel in the main viewing angle direction is smaller than a change in transmittance of the filters per pixel in a direction orthogonal to the first viewing angle direction in the second viewing angle direction parallel to the display surface.Type: ApplicationFiled: April 18, 2018Publication date: August 23, 2018Inventors: Masaya TAMAKI, Yoko FUKUNAGA, Masashi MITSUI, Susumu KIMURA
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Patent number: 10055072Abstract: An input device includes a first substrate, a first light-emitting element unit, and a third electrode unit. The first substrate has a first surface and a second surface. The first light-emitting element includes a first electrode unit formed on the second surface, a second electrode unit formed in a layer different from that of the first electrode unit, and a luminescent layer electrically in contact with at least a part of the first electrode unit and a part of the second electrode unit, and formed between the first electrode unit and the second electrode unit. The third electrode unit is insulated from the first electrode unit and detects a change in an electric field between the first electrode unit and the third electrode unit depending on coordinates of a proximity object present at a position overlapping with the first surface in planar view.Type: GrantFiled: March 25, 2016Date of Patent: August 21, 2018Assignee: Japan Display Inc.Inventors: Takayuki Nakanishi, Masaya Tamaki, Tatsuya Yata
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Patent number: 10048548Abstract: A pixel array substrate structure includes: first and second planarizing films sequentially stacked on a substrate where a circuit unit is formed; and a relay wire formed between the first and second planarizing films, in which the relay wire electrically connects a first contact portion formed on the first planarizing film and connected to the circuit unit with a second contact portion formed at a position different from the first contact portion when seen from above, on the second planarizing film.Type: GrantFiled: November 30, 2015Date of Patent: August 14, 2018Assignee: Japan Display Inc.Inventors: Koichi Nagasawa, Masaya Tamaki, Shuji Hayashi, Masaaki Kabe, Yoko Fukunaga
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Publication number: 20180224969Abstract: An input device includes a first substrate, a light-emitting element, and a third electrode unit. The first substrate has first and second surfaces. The light-emitting element unit includes: a first conductive electrode unit including first conductive layers; a second conductive electrode unit including second conductive layers each having a size overlapping with the first conductive layer in planar view; and luminescent layers conducted with at least a part of the first electrode unit, each provided between the first and second electrode units and conducted with the first conductive layer and the second conductive layer overlapping with the first conductive layer in planar view. The third electrode unit is insulated from the first conductive layers and detects a change in an electric field between the first conductive layers and the third electrode unit depending on coordinates of a proximity object at a position overlapping with the first surface in planar view.Type: ApplicationFiled: March 29, 2018Publication date: August 9, 2018Inventors: Masaya TAMAKI, Takayuki NAKANISHI, Tatsuya YATA
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Publication number: 20180210284Abstract: According to an aspect, a lens sheet outputs light reflected by a reflector, the reflected light being a part of incident light having entered the lens sheet. When a first light intensity is an intensity of light entering the lens sheet at an incident angle from 70° to 90° inclusive with respect to a normal direction of a display surface and output from the lens sheet at an output angle from 0° to 40° inclusive toward an incident side with respect to the normal direction, and a second light intensity is an intensity of light entering the lens sheet at an incident angle from 10° to 40° inclusive with respect to the normal direction and output from the lens sheet at an output angle from 0° to 40° inclusive to the incident side with respect to the normal direction, the first light intensity is greater than the second light intensity.Type: ApplicationFiled: January 23, 2018Publication date: July 26, 2018Inventors: Yudai NUMATA, Masaya TAMAKI, Takeo KOITO
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Patent number: 10031365Abstract: According to one embodiment, a liquid crystal display device includes a first substrate unit including pixel electrodes arranged in a matrix configuration, a second substrate unit including counter electrodes, and a liquid crystal layer. The pixel electrodes include a first and a second pixel electrode arranged to be adjacent along one of the row direction or the column direction. An inter-pixel region is provided between the first and the second pixel electrodes. The counter electrodes include a first and a second opposing portion arranged to be adjacent along the other of the row direction or the column direction. An inter-counter electrode region is provided between the first and the second opposing portions. The inter-counter electrode region overlaps the inter-pixel region. A light-shielding layer is provided in the second substrate unit, and covers the inter-counter electrode region and the inter-pixel region.Type: GrantFiled: April 17, 2015Date of Patent: July 24, 2018Assignee: Japan Display Inc.Inventors: Masaya Tamaki, Hayato Kurasawa, Yasushi Kawata
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Publication number: 20180203307Abstract: A pixel array substrate structure includes: first and second planarizing films sequentially stacked on a substrate where a circuit unit is formed; and a relay wire formed between the first and second planarizing films, in which the relay wire electrically connects a first contact portion formed on the first planarizing film and connected to the circuit unit with a second contact portion formed at a position different from the first contact portion when seen from above, on the second planarizing film.Type: ApplicationFiled: March 13, 2018Publication date: July 19, 2018Inventors: Koichi Nagasawa, Masaya Tamaki, Shuji Hayashi, Masaaki Kabe, Yoko Fukunaga