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公开(公告)号：US12078891B2
公开(公告)日：2024-09-03
申请号：US18367116
申请日：2023-09-12
Applicant: JAPAN DISPLAY INC.
Inventor： Kojiro Ikeda , Takeo Koito , Koichi Nagao , Shinichiro Tanaka
IPC: G02F1/1337 , G02F1/1343 , G02F1/1347
CPC classification number: G02F1/1337 , G02F1/134309 , G02F1/1347 , G02F2201/124
Abstract: According to one embodiment, a liquid crystal device includes a first liquid crystal cell and a second liquid crystal cell. The first liquid crystal cell and the second liquid crystal cell each include a first strip electrode, a second strip electrode, a third strip electrode and a fourth strip electrode. The extension direction of each of the first strip electrode and the second strip electrode in the first liquid crystal cell is different from the extension direction of each of the first strip electrode and the second strip electrode in the second liquid crystal cell. The extension direction of each of the first strip electrode and the second strip electrode is orthogonal to the extension direction of each of the third strip electrode and the fourth strip electrode.
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公开(公告)号：US12078557B2
公开(公告)日：2024-09-03
申请号：US17572753
申请日：2022-01-11
Applicant: Japan Display Inc.
Inventor： Hitoshi Tanaka
CPC classification number: G01L1/146 , G06F3/0414 , G06F3/0445 , G06F2203/04105
Abstract: According to an aspect, a force sensor includes: a plurality of first electrodes that are arranged along a substrate; an elastic body that is in contact with the first electrodes; a second electrode that is in contact with the elastic body, the elastic body being interposed between the second electrode and the first electrodes; and a third electrode that is provided on the substrate side of the second electrode and configured to be electrically coupled to the second electrode. The elastic body includes a conductive particle that electrically couples the first electrodes and the second electrode when force is applied that causes the first electrodes and the second electrode to be approached. The third electrode has a continuous lattice shape that separates at least the first electrodes adjacent in one direction from each other.
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公开(公告)号：US20240290861A1
公开(公告)日：2024-08-29
申请号：US18435094
申请日：2024-02-07
Applicant: Japan Display Inc.
Inventor： Hajime WATAKABE , Masashi TSUBUKU , Toshinari SASAKI , Takaya TAMARU , Marina MOCHIZUKI , Ryo ONODERA , Masahiro WATABE
IPC: H01L29/49 , H01L29/66 , H01L29/786
CPC classification number: H01L29/4908 , H01L29/66969 , H01L29/78648 , H01L29/7869
Abstract: A semiconductor device according to an embodiment includes: a first gate electrode; a first insulating layer on the first gate electrode; an oxide semiconductor layer on the first insulating layer; a second insulating layer on the oxide semiconductor layer; and a second gate electrode on the second insulating layer. The first insulating layer includes a first layer including silicon and nitrogen, a second layer including silicon and oxygen, and a third layer including aluminum and oxygen. A thickness of the first layer is 10 nm or more and 190 nm or less. A thickness of the second layer is 10 nm or more and 100 nm or less. A total thickness of the first layer and the second layer is 200 nm or less. A thickness of the third layer 1 nm or more and 10 nm or less.
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公开(公告)号：US20240290134A1
公开(公告)日：2024-08-29
申请号：US18659213
申请日：2024-05-09
Applicant: Japan Display Inc.
Inventor： Shigesumi ARAKI , Kazuki MATSUNAGA , Akio TAKIMOTO
IPC: G06V40/13 , H01L27/146
CPC classification number: G06V40/1318 , H01L27/14625 , H01L27/14678
Abstract: According to an aspect, a detection device includes: a photosensor including light-receiving elements; a front light including a light guide plate and a light source configured to emit light to a first side surface of the light guide plate; and an optical filter layer provided between the light-receiving elements and the front light. The optical filter layer includes light guide paths and a light-blocking portion. A first opening of each light guide path closest to the light-receiving elements is offset in a direction more away from the light source than a second opening of the light guide path farthest from the light-receiving elements. The light guide plate includes a scattering portion on the optical filter layer side. A first peak of an intensity of first light emitted from the detection surface of the light guide plate is observed to be tilted toward a side opposite to the first side surface.
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公开(公告)号：US20240288961A1
公开(公告)日：2024-08-29
申请号：US18656751
申请日：2024-05-07
Applicant: Japan Display Inc.
Inventor： Makoto HAYASHI
CPC classification number: G06F3/0412 , G06F3/04166 , G06F3/0446
Abstract: A display device is provided and includes a touch sensor with electrodes configured to operate in a touch detection period and in a display period; and pixels with pixel electrodes, wherein at least one of the electrodes has thin line portions and protruding electrode portions, the thin line and protruding electrode portions are arranged alternately in a first direction, the thin line portions have a first width in a second direction intersecting the first direction, the protruding electrode portions have a second width in the second direction, and the first width is smaller than the second width.
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Patent Agency Ranking
公开(公告)号：US20240288303A1
公开(公告)日：2024-08-29
申请号：US18659181
申请日：2024-05-09
Applicant: Japan Display Inc.
Inventor： Kazuki MATSUNAGA , Akio TAKIMOTO , Shigesumi ARAKI
CPC classification number: G01J1/0407 , G01J1/42
Abstract: According to an aspect, a detection device includes: a plurality of photodiodes arranged on a substrate; a front light including a light guide plate disposed so as to overlap the photodiodes and a light source configured to emit light to a side surface of the light guide plate; and an optical filter layer provided between the photodiodes and the light guide plate of the front light. The optical filter layer includes a plurality of light guide paths that at least partially overlap the photodiodes, and a light-blocking portion having higher absorptance of the light than the light guide paths. The detection device includes a reflective layer that is provided between the light guide plate and the optical filter layer and overlaps the light-blocking portion of the optical filter layer.
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187.发明授权公开(公告)号：US12074382B2
公开(公告)日：2024-08-27
申请号：US17388573
申请日：2021-07-29
Applicant: Japan Display Inc.
Inventor： Mitsutaka Okita
CPC classification number: H01Q3/36 , H01Q19/10 , H01Q21/065
Abstract: According to one embodiment, a method of driving a phased array antenna, includes applying voltages to phase control electrodes in a first period such that radio waves to be emitted from antennas are in a same phase in a first emission direction, and applying the voltages to the phase control electrodes in a second period such that the radio waves to be emitted from the antennas are held in the same phase in the first emission direction. An absolute value of the voltage applied in the second period is different from an absolute value of the voltage applied in the first period, in each of the phase control electrodes.
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公开(公告)号：US12072595B2
公开(公告)日：2024-08-27
申请号：US18503351
申请日：2023-11-07
Applicant: Japan Display Inc.
Inventor： Akihiro Hanada , Toshihide Jinnai , Isao Suzumura , Hajime Watakabe , Ryo Onodera
IPC: G02F1/1368 , G02F1/1362 , H01L29/786 , H10K50/86 , H10K59/131
CPC classification number: G02F1/1368 , G02F1/136209 , G02F1/136277 , G02F1/136286 , H01L29/78633 , H01L29/78672 , H10K50/865 , H10K59/131
Abstract: A display device including: a substrate; a first thin film transistor of polysilicon semiconductor, a second thin film transistor of oxide semiconductor; a first light shading film opposing to the polysilicon semiconductor, and a second light shading film opposing to the oxide semiconductor; a first insulating film, a second insulating film which is constituted from plural insulating films, and a third insulating film superposed in this order; a first through hole penetrating the second insulating film and not penetrating the first insulating film and the third insulating film; a second through hole penetrating the first insulating film and the third insulating film; the first light shading film connects with a first conductive component, a part of the first conductive component exists on the third insulating film, through the second through hole.
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公开(公告)号：US20240280864A1
公开(公告)日：2024-08-22
申请号：US18654148
申请日：2024-05-03
Applicant: Japan Display Inc.
Inventor： Gen KOIDE , Hiroyuki ABE , Kazune MATSUMURA
IPC: G02F1/1345 , G02F1/1362 , G09G3/36
CPC classification number: G02F1/13452 , G02F1/1345 , G02F1/136286 , G09G3/3677 , G09G2300/0426
Abstract: According to an aspect, a display device includes: a first substrate having a first side and a second side opposed to the first side; a display region provided with pixels; a first partial peripheral region between the first side and the display region; a second partial peripheral region between the second side and the display region; a plurality of signal lines configured to supply signals to switching elements in the pixels; a plurality of first terminals provided in the first partial peripheral region and configured to be electrically coupled to a driver integrated circuit; a plurality of second terminals provided in the second partial peripheral region and configured to be supplied with signals for inspection; and a first coupling circuit provided between the first terminals and the display region in the first partial peripheral region and configured to switch between coupling and decoupling the signal lines and the second terminals.
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190.发明公开公开(公告)号：US20240280859A1
公开(公告)日：2024-08-22
申请号：US18650442
申请日：2024-04-30
Applicant: Japan Display Inc.
Inventor： Keisuke TAKANO
IPC: G02F1/1337 , G02F1/1333 , G02F1/1335 , G02F1/1339 , G02F1/1343 , G02F1/1368
CPC classification number: G02F1/1337 , G02F1/133345 , G02F1/133512 , G02F1/1339 , G02F1/134309 , G02F1/1368 , G02F1/133742 , G02F2201/121 , G02F2201/123 , G02F2201/40 , G02F2202/10
Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first alignment film covering a pixel electrode, a second substrate including a second alignment film covering a second common electrode, a sealant attaching the first substrate and the second substrate, and a liquid crystal layer held between the first alignment film and the second alignment film, wherein the first alignment film and the second alignment film are formed of a material in which a principal chain is composed of silica (SiO2), and extend at a position overlapping the sealant between an inner face and an outer face of the sealant.
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