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公开(公告)号：US12135457B2
公开(公告)日：2024-11-05
申请号：US18430928
申请日：2024-02-02
Applicant: Japan Display Inc. , OSAKA UNIVERSITY
Inventor： Koichi Igeta , Shinichiro Oka , Yasushi Tomioka , Junji Kobashi , Hiroyuki Yoshida
Abstract: According to one embodiment, a liquid crystal optical element includes an optical waveguide including a first main surface and a second main surface opposed to the first main surface, an alignment film disposed on the second main surface, a liquid crystal layer which overlaps the alignment film, which includes cholesteric liquid crystals, and which reflects at least part of light incident through the optical waveguide toward the optical waveguide, and a transparent first protective layer which overlaps the liquid crystal layer, and which is formed of a water-soluble polymer or a fluorine-based resin.
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公开(公告)号：US11982825B2
公开(公告)日：2024-05-14
申请号：US18319000
申请日：2023-05-17
Applicant: Japan Display Inc. , OSAKA UNIVERSITY
Inventor： Koichi Igeta , Shinichiro Oka , Yasushi Tomioka , Hiroyuki Yoshida
CPC classification number: G02B5/3016 , C09K19/36 , C09K19/54 , G02B5/1833 , G02B5/1857
Abstract: According to one embodiment, a liquid crystal optical element includes a transparent substrate including a main surface, an alignment film disposed on the main surface, and a liquid crystal layer overlapping the alignment film and including a cholesteric liquid crystal including liquid crystal molecules stacked helically and an additive exhibiting a liquid crystalline property. In the liquid crystal layer, a reflective surface along which alignment directions of the liquid crystal molecules are identical is inclined with respect to the main surface.
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3.发明授权公开(公告)号：US09182634B2
公开(公告)日：2015-11-10
申请号：US14532591
申请日：2014-11-04
Applicant: Japan Display Inc.
Inventor： Yosuke Hyodo , Koichi Igeta , Toshiki Kaneko , Noboru Kunimatsu , Hidehiro Sonoda
IPC: G02F1/1339 , G02F1/1337 , G02F1/1333 , G02F1/1368 , G02F1/1341
CPC classification number: G02F1/13394 , G02F1/133371 , G02F1/13378 , G02F1/1339 , G02F1/1341 , G02F1/1368 , G02F2001/13398 , G02F2001/13415 , G02F2201/50
Abstract: A display device includes a first substrate, a second substrate and liquid crystals therebetween, the first substrate having a flat portion, an alignment film, and a concavo-convex pedestal formed in a pixel region, wherein the concavo-convex pedestal having at least two convex portions and recessed portions, and the at least two convex portions of the concavo-convex pedestal are at a position lower than a position of the flat portion. A thickness of the alignment film on the convex portions is less than a thickness of the alignment film on the recessed portions, and a second substrate has a columnar spacer which contacts the at least two convex portions of the concavo-convex pedestal.
Abstract translation: 显示装置包括第一基板，第二基板和它们之间的液晶，第一基板具有平坦部分，取向膜和形成在像素区域中的凹凸基座，其中所述凹凸基座具有至少两个 凸部和凹部，凹凸台的至少两个凸部位于比平坦部的位置低的位置。 凸部上的取向膜的厚度小于凹部上的取向膜的厚度，第二基板具有与凹凸台的至少两个凸部接触的柱状间隔件。
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公开(公告)号：US09035869B2
公开(公告)日：2015-05-19
申请号：US13901996
申请日：2013-05-24
Inventor： Koichi Igeta , Toshiki Asakura
IPC: G09G3/34 , G02F1/1343 , G02F1/1333 , G02F1/1335 , G09G3/36
CPC classification number: G02F1/134336 , G02F1/133371 , G02F1/133514 , G09G3/3648 , G09G2300/0439 , G09G2300/0452
Abstract: The present invention provides a liquid crystal display device which includes a first pixel and a second pixel which are arranged close to each other and are allocated to the same color, and color filters which differ in color tone and are formed on the first pixel and the second pixel, wherein a voltage for driving liquid crystal of the first pixel and a voltage for driving liquid crystal of the second pixel are controlled independently from each other.
Abstract translation: 本发明提供了一种液晶显示装置，其包括彼此靠近并分配给相同颜色的第一像素和第二像素，以及在第一像素和第一像素上形成的色调不同的滤色器 第二像素，其中用于驱动第一像素的液晶的电压和用于驱动第二像素的液晶的电压被彼此独立地控制。
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公开(公告)号：US12111543B2
公开(公告)日：2024-10-08
申请号：US18366099
申请日：2023-08-07
Applicant: Japan Display Inc.
Inventor： Koichi Igeta , Tenfu Nakamura , Kentaro Okuyama
IPC: G02F1/1339 , G02F1/1333 , G02F1/1334 , G02F1/1362
CPC classification number: G02F1/1339 , G02F1/133305 , G02F1/1334 , G02F1/136286
Abstract: According to one embodiment, a display device includes a first substrate, a second substrate opposed to the first substrate, a sealing member bonding the first substrate with the second substrate, and a liquid crystal layer between the first substrate and the second substrate. From an aspect, the sealing member includes a first sealing member surrounding a display area including a plurality of pixels, and a second sealing member formed of a same material as the first sealing member and arranged in the display area.
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Patent Agency Ranking
公开(公告)号：US11726363B2
公开(公告)日：2023-08-15
申请号：US17655684
申请日：2022-03-21
Applicant: Japan Display Inc.
Inventor： Koichi Igeta
IPC: G02F1/1335 , G02F1/1337
CPC classification number: G02F1/133553 , G02F1/133738 , G02F1/133746 , G02F2201/343
Abstract: According to one embodiment, a liquid crystal element includes a first transparent substrate, a second transparent substrate, and a first liquid crystal layer cured. The first liquid crystal layer contains first cholesteric liquid crystal and has a reflective surface which reflects first circularly polarized light having a first wavelength. A first helical axis of the first cholesteric liquid crystal is tilted in a uniform direction over an entire area of the first liquid crystal layer. Each of a first outer surface of the first transparent substrate and a second outer surface of the second transparent substrate forms an interface which totally reflects the first circularly polarized light reflected in the first liquid crystal layer.
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公开(公告)号：US11347112B2
公开(公告)日：2022-05-31
申请号：US17095928
申请日：2020-11-12
Applicant: Japan Display Inc.
Inventor： Koichi Igeta , Hirotaka Imayama
IPC: G02F1/1339 , G02F1/1335 , G02F1/1333
Abstract: To improve the display quality of a display device, the display device includes a display section and a frame section surrounding a periphery of the display section. A substrate in the display device includes a conductor pattern constituting a circuit section and an insulating film serving as an organic film covering the conductor pattern. The insulating film extends to a peripheral edge of the substrate. A slit, which penetrates the insulating film in a thickness direction, is formed in a corner part of the insulating film. The slit is formed at a position not overlapping the circuit section.
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公开(公告)号：US10795211B2
公开(公告)日：2020-10-06
申请号：US15949336
申请日：2018-04-10
Applicant: Japan Display Inc.
Inventor： Hidehiro Sonoda , Takenori Hirota , Noboru Kunimatsu , Koichi Igeta
IPC: G02F1/1337 , G02F1/1345 , G02F1/1339 , G02F1/1333 , G02F1/1362 , G02F1/1343 , G02F1/1368
Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first area and a second area, a second substrate opposing the first substrate but not opposing the second area, a sealing part which adheres the first substrate and the second substrate to each other, a liquid crystal layer located between the first substrate and the second substrate and surrounded by the sealing part, an alignment film disposed on the first substrate so as to be in contact with the liquid crystal layer and a terminal located in the second area and connected to an external circuit. In plan view, the alignment film includes an end located between the sealing part and the terminal.
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公开(公告)号：US12164190B2
公开(公告)日：2024-12-10
申请号：US18100008
申请日：2023-01-23
Applicant: Japan Display Inc.
Inventor： Koichi Igeta , Kasumi Hase , Yoshiro Aoki
IPC: G02F1/1335 , G02F1/1333
Abstract: According to one embodiment, a camera module includes a liquid crystal panel, an image sensor and an optical system. The liquid crystal panel is configured to display a coded aperture pattern. The optical system is interposed between the liquid crystal panel and the image sensor. The liquid crystal panel includes a liquid crystal layer containing liquid crystal molecules and dichroic dye molecules aligned following the liquid crystal molecules.
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公开(公告)号：US12124145B2
公开(公告)日：2024-10-22
申请号：US18362091
申请日：2023-07-31
Applicant: Japan Display Inc.
Inventor： Hiroumi Kinjo , Koichi Igeta , Shinichiro Oka
IPC: G02F1/137 , G02F1/1333 , G02F1/1335 , G02F1/1337
CPC classification number: G02F1/13718 , G02F1/133365 , G02F1/133536 , G02F1/133757 , G02F1/133761 , G02F1/133788
Abstract: According to one embodiment, a method of manufacturing a liquid crystal element, includes forming an alignment layer on a support, forming a cholesteric liquid crystal layer containing a plasticizer and having elasticity on the alignment layer, adhering a flexible substrate to the cholesteric liquid crystal layer via a first adhesive layer, peeling the cholesteric liquid crystal layer adhered to the flexible substrate, off from the support and the alignment layer, adhering the cholesteric liquid crystal layer to a rigid substrate via a second adhesive layer and removing the flexible substrate and the first adhesive layer.
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