Patents Assigned to Japan Display Inc.
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Publication number: 20240121893Abstract: According to an aspect, a stretchable device includes: a resin base member; and a signal line and a strain gauge stacked on the resin base member. The resin base member includes: a plurality of bodies disposed separately from each other; and a plurality of hinges that couple the bodies while meandering. The hinges each include: a plurality of bends that bend and are disposed between the bodies; and a base that linearly extends to couple one of the bodies to a corresponding one of the bends. The signal line includes: a bend signal line stacked on the bends; and a base signal line stacked on the base. The base signal line has an occupied area per unit length in a length direction of the signal line larger than the bend signal line when viewed in a stacking direction in which the signal line is stacked on the resin base member.Type: ApplicationFiled: October 4, 2023Publication date: April 11, 2024Applicant: Japan Display Inc.Inventors: Takumi SANO, Masatomo HISHINUMA, Yasushi TOMIOKA, Akio MURAYAMA, Shinichiro OKA
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Patent number: 11953712Abstract: According to one embodiment, a display device includes a display panel, a first light guide, and a second light guide. In the first light guide, a first main surface includes a first plane and first grooves between the first plane and a first side surface, a second main surface includes second grooves orthogonal to the first grooves, and a second plane between the second grooves and the first side surface. In the second light guide, a third main surface includes a third plane and third grooves located between the third plane and a fourth side surface, a fourth main surface includes fourth grooves orthogonal to the third grooves, and a fourth plane located between the fourth grooves and the fourth side surface.Type: GrantFiled: May 9, 2023Date of Patent: April 9, 2024Assignee: JAPAN DISPLAY INC.Inventors: Ken Onoda, Shinichi Komura, Koichi Okuda, Hiroaki Kijima
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Patent number: 11953771Abstract: According to one embodiment, a detection device includes a substrate and a plurality of sensor electrodes provided on the substrate, extending along a first direction and arranged to be spaced apart from each other along a second direction intersecting the first direction. The sensor electrodes form a plurality of detection areas extending in the first direction and a plurality of non-detection areas adjacent to the plurality of detection areas along the second direction, and a boundary between each of the detection areas and each respective one of the non-detection areas is not linear.Type: GrantFiled: June 3, 2022Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventor: Koichiro Adachi
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Patent number: 11953789Abstract: According to one embodiment, a liquid crystal display device includes a first substrate, a second substrate, a facing area, a liquid crystal layer, and a first spacer. The facing area includes a first area for displaying an image, a second area, and a frame-shaped frame area. The second substrate includes a light-shielding layer. The second area is an area having higher transparency than transparency of the first area. The liquid crystal layer is located in the second area, the frame area, and the first area. The first spacer is located in the second area and is provided on the first substrate or the second substrate.Type: GrantFiled: November 19, 2021Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventors: Tomokazu Ishikawa, Masaru Nakakomi
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Patent number: 11956893Abstract: According to one embodiment, a flexible substrate includes an insulating base material including an island-shaped portion, a first portion having a band shape and connected to the island-shaped portion, and a second portion having a band shape and connected to the island-shaped portion, and a wiring layer provided on the insulating base material. The first portion includes a first curved portion and a first straight portion connecting the island-shaped portion and the first curved portion, and the second portion includes a second curved portion and a second straight portion connecting the island-shaped portion and the second curved portion.Type: GrantFiled: October 14, 2021Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventor: Takumi Sano
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Patent number: 11955492Abstract: According to one embodiment, a display device includes a display panel including a display area for displaying an image, and the display panel includes an insulating substrate, a first electrode, a first organic insulating layer, an inorganic insulating layer, a pixel electrode, a second organic insulating layer, and a pad portion. The inorganic insulating layer includes a first opening for electrically connecting the first electrode to the pixel electrode. The second organic insulating layer includes a second opening for electrically connecting the pixel electrode to the pad portion. The pixel electrode is formed of a transparent conductive material.Type: GrantFiled: September 17, 2021Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventors: Yoshinori Aoki, Yasuhiro Kanaya, Akihiro Ogawa
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Patent number: 11953786Abstract: A lens portion of a display device includes: a first lens arranged between a light guide plate and a light-emitting element portion, and having a plurality of first prisms arranged on a first light-exiting surface; and a second lens arranged between the first lens and the light-emitting element portion, and having a plurality of second prisms arranged on a second light-exiting surface arranged at a position facing a light-entering surface. The first lens includes a plurality of diffusing prisms arranged on the light-entering surface and capable of diffusing light emitted from the second lens and introducing said light into the first lens.Type: GrantFiled: August 21, 2023Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventors: Motoki Tsuda, Naoyuki Asano, Kazuki Ichihara
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Patent number: 11953773Abstract: A display device is provided and includes first substrate; first line extending in first direction on first substrate; second line extending in a second direction crossing the first lines; pixel electrode on the first substrate; insulating film on the pixel electrode; common electrode on the insulating film, including a first electrode arranged in a second direction and a plurality of second electrodes connected to the first electrode; second substrate facing first substrate; liquid crystal layer provided between first and second substrates; and wherein, in plan view, pixel electrode is rectangular in shape, and in plan view, part of first electrode overlaps second line.Type: GrantFiled: May 10, 2023Date of Patent: April 9, 2024Assignee: Japan Display Inc.Inventor: Toshiharu Matsushima
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Patent number: 11953373Abstract: According to one embodiment, a sensor device comprises a sensor configured to output a sense signal, a value the sense signal changing over time based on incident light, a first reset circuit configured to set the value of the sense signal to a reset value when the value of the sense signal exceeds a threshold, a counter configured to count a first number of times of reset by the first reset circuit, and an arithmetic operation circuit configured to calculate an amount of incident light of a certain period based on the value of the sense signal, the reset value, and the first number of times of reset.Type: GrantFiled: October 18, 2022Date of Patent: April 9, 2024Assignee: JAPAN DISPLAY INC.Inventors: Naoki Takada, Xingle Wang, Chung-Kai Chen
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Publication number: 20240112932Abstract: According to one embodiment, a manufacturing device of a display device includes a conveyance mechanism for conveying a processing substrate in a first direction, and first, second, third and fourth evaporation portions arranged in order in the first direction. The first evaporation portion includes a plurality of evaporation chambers for forming an organic layer. The second evaporation portion includes an evaporation chamber for forming an upper electrode. The third evaporation portion includes an evaporation chamber for forming a first transparent layer. The fourth evaporation portion includes an evaporation chamber for forming a second transparent layer having a refractive index less than a refractive index of the first transparent layer on the first transparent layer.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventors: Takanobu TAKENAKA, Hirofumi MIZUKOSHI, Masaru TAKAYAMA, Yuki HAMADA
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Publication number: 20240114751Abstract: According to an embodiment, a display device comprises a first substrate, a lower electrode, a rib including a pixel aperture, a partition on the rib, an organic layer covering the lower electrode, an upper electrode covering the organic layer, a first sealing layer formed of an inorganic material to continuously cover a thin film including the organic layer and the upper electrode, and the partition, a resin layer covering the first sealing layer, a second sealing layer formed of an inorganic material to cover the resin layer, a second substrate facing the second sealing layer, and an adhesive layer adhering the second sealing layer and the second substrate.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventor: Jun HANARI
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Publication number: 20240112617Abstract: According to one embodiment, a CMOS circuit includes a p-channel type transistor including a polycrystalline silicon layer and an n-channel type transistor including an oxide semiconductor layer, and the p-channel transistor and the n-channel transistor are complementarily connected to each other, and the polycrystalline silicon layer and the oxide semiconductor layer overlap each other in plan view.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventor: Kenji HARADA
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Publication number: 20240111183Abstract: According to one embodiment, a display device includes a first scanning line, a second scanning line, an inorganic insulating layer, a first projection located just above the first scanning line and disposed on the inorganic insulating layer, a second projection located just above the second scanning line and disposed on the inorganic insulating layer, a first color filter disposed on the inorganic insulating layer between the first projection and the second projection, an organic insulating layer covering the first projection, the second projection, and the first color filter. A width of the first projection is smaller than a width of the first scanning line. A width of the second projection is smaller than a width of the second scanning line.Type: ApplicationFiled: October 3, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventor: Junko NAGASAWA
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Publication number: 20240114616Abstract: According to an aspect, a stretchable device includes: a resin base member; and a strain gauge, a signal line, and an output line stacked on the resin base member. The resin base member includes: a plurality of bodies disposed separately from each other; and a plurality of hinges that couple the bodies adjacently disposed while meandering in an intersecting direction intersecting an imaginary line that couples the bodies adjacently disposed. The hinges include a first hinge and a second hinge that couple the bodies adjacently disposed. A meander length of the second hinge in the intersecting direction is longer than a meander length of the first hinge in the intersecting direction. The strain gauge is provided to the first hinge. The signal line and the output line are provided to the second hinge.Type: ApplicationFiled: October 3, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventors: Yosuke HYODO, Takumi SANO, Hiroumi KINJO, Masatomo HISHINUMA
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Publication number: 20240113174Abstract: A laminate includes an amorphous glass substrate, and an AlN layer formed on the amorphous glass substrate. The AlN layer is c-axis oriented on the amorphous glass substrate, a glass transition temperature (Tg) of the amorphous glass substrate is 720° C. to 810° C., a coefficient of thermal expansion (CTE) of the amorphous glass substrate is 3.5×10?6 [1/K] to 4.0×10?6 [1/K], and a softening point of the amorphous glass substrate is 950° C. to 1050° C.Type: ApplicationFiled: December 7, 2023Publication date: April 4, 2024Applicants: Japan Display Inc., MEIJO UNIVERSITYInventors: Masanobu IKEDA, Arichika ISHIDA, Satoshi KAMIYAMA, Motoaki IWAYA, Tetsuya TAKEUCHI
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Publication number: 20240113228Abstract: A semiconductor device according to an embodiment includes: an oxide insulating layer; an oxide semiconductor layer; a gate electrode; a gate insulating layer; and a first insulating layer, wherein the semiconductor device is divided into a first to a third regions, a thickness of the gate insulating layer in the first region is 200 nm or more, the gate electrode contacts the first insulating layer in the first region, the oxide semiconductor layer contacts the first insulating layer in the second region, an amount of impurities contained in the oxide semiconductor layer in the second region is greater than an amount of impurities contained in the oxide semiconductor layer in the first region, and an amount of impurities contained in the oxide insulating layer in the third region is greater than an amount of impurities contained in the oxide insulating layer in the second region.Type: ApplicationFiled: October 3, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventors: Hajime WATAKABE, Masashi TSUBUKU, Toshinari SASAKI, Akihiro HANADA, Takaya TAMARU
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Publication number: 20240114749Abstract: According to one embodiment, a display device includes first and second base electrodes, a rib, first and second lower electrodes, first and second organic layers, and an upper electrode. A peripheral portion of each of the first base electrode and the second base electrode is covered with the rib. Each of the first base electrode and the second base electrode is formed of a first metal material. A peripheral portion of each of the first lower electrode and the second lower electrode is located on the rib. Each of the first lower electrode and the second lower electrode is formed of a second metal material different from the first metal material. A thickness of the first lower electrode is different from a thickness of the second lower electrode.Type: ApplicationFiled: September 29, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventor: Kaichi FUKUDA
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Publication number: 20240113227Abstract: A method for manufacturing semiconductor device according to an embodiment includes: forming an oxide semiconductor layer above a substrate; forming a gate insulating layer above the oxide semiconductor layer; forming a metal oxide layer containing aluminum as a main component above the gate insulating layer; performing a heat treatment in a state where the metal oxide layer is formed above the gate insulating layer; removing the metal oxide layer after the heat treatment; and forming a gate electrode above the gate insulating layer.Type: ApplicationFiled: September 28, 2023Publication date: April 4, 2024Applicant: Japan Display Inc.Inventors: Hajime WATAKABE, Masashi TSUBUKU, Toshinari SASAKI, Akihiro HANADA, Takaya TAMARU
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Patent number: 11948522Abstract: According to an aspect, a display device includes: an image display panel having an image display surface on which display is to be controlled based on an image signal; a light source device that includes light sources provided corresponding to divided partial areas of the image display surface, and is configured to illuminate the image display surface; and a signal processor configured to calculate a light quantity of each light source for each of the partial areas. The signal processor is configured to calculate the light quantity for each partial area based on the image signal, set one of the partial areas as an adjustment target partial area for the light quantity, and adjust the light quantity in the adjustment target partial area when the light quantity of an adjacent partial area located around the adjustment target partial area is equal to or smaller than a predetermined value.Type: GrantFiled: September 16, 2021Date of Patent: April 2, 2024Assignee: Japan Display Inc.Inventors: Kazuhiko Sako, Tsutomu Harada
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Patent number: 11949048Abstract: According to one embodiment, an illumination device comprises a first mounting board including a plurality of first light emitting elements, a second mounting board including a plurality of second light emitting elements, and a first wiring board including a first wiring line electrically connected to at least one of the plurality of first light emitting elements and the plurality of second light emitting elements. The first mounting board and the second mounting board extend in a first direction and are arranged along a second direction intersecting the first direction. The first wiring board is superposed on the first mounting board and the second mounting board. The first wiring board has rigidity that is lower than rigidity of each of the first mounting board and the second mounting board.Type: GrantFiled: March 25, 2021Date of Patent: April 2, 2024Assignee: Japan Display Inc.Inventors: Masaaki Takuma, Mao Izawa
