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公开(公告)号：US11604384B2
公开(公告)日：2023-03-14
申请号：US17655085
申请日：2022-03-16
Applicant: Japan Display Inc.
Inventor： Junji Kobashi , Shinichiro Oka , Yasushi Tomioka , Koichi Igeta
IPC: G02F1/1337
Abstract: According to one embodiment, a liquid crystal element includes a transparent substrate including a first main surface, a plurality of structures disposed on the first main surface and arranged along one direction, an alignment film disposed on a surface of each of the structures and a liquid crystal layer containing a cholesteric liquid crystal and in contact with the alignment film, and the helical axis of the cholesteric liquid crystal is inclined with respect to the first main surface, each of the plurality of structures includes a first surface inclined with respect to the first main surface, in the plurality of structures, the first surfaces are parallel to each other, and the alignment film is interposed between the first surface and the liquid crystal layer.
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公开(公告)号：US20180307089A1
公开(公告)日：2018-10-25
申请号：US15946799
申请日：2018-04-06
Applicant: Japan Display Inc.
Inventor： Koichi Igeta , Toshiharu Matsushima
IPC: G02F1/1333 , G02F1/1337 , G02F1/1335 , G02F1/1343 , H05K1/18
CPC classification number: G02F1/133345 , G02F1/13338 , G02F1/133512 , G02F1/133514 , G02F1/1337 , G02F1/134309 , G02F2201/121 , G02F2201/123 , H05K1/189
Abstract: According to one embodiment, a liquid crystal display device includes first and second substrates and a liquid crystal layer. The first substrate includes scanning lines, signal lines, first and second electrodes and a light-shielding layer. One of the first and second electrodes is a pixel electrode, and the other one is a common electrode. The first electrode includes branch areas and an axis area. A gap area is provided between the adjacent branch areas. The light-shielding layer includes first portions overlapping the branch area or the gap area. The first portions are arranged at a position closer to the liquid crystal layer than the scanning and signal lines in the first substrate.
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公开(公告)号：US10002557B2
公开(公告)日：2018-06-19
申请号：US15599946
申请日：2017-05-19
Applicant: Japan Display Inc.
Inventor： Koichi Igeta
CPC classification number: G09G3/2074 , G02F1/133 , G02F1/136213 , G02F1/136286 , G09G3/18 , G09G3/3607 , G09G3/3677 , G09G3/3685 , G09G2300/0408 , H01L25/04
Abstract: In one embodiment, a display device includes first and second substrates, a liquid crystal layer, a display area, a surrounding area, a light-shielding layer overlapping the surrounding area, a voltage supply line in the surrounding area and extending in a first direction, and first and second electrodes provided in the surrounding area and connected to the voltage supply line. The first and second electrodes are alternately arranged in either the first direction or a second direction crossing the first direction. Further, a first voltage supplied to the first electrode is different from a second voltage supplied to the second electrode.
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14.发明授权公开(公告)号：US08885136B2
公开(公告)日：2014-11-11
申请号：US14278795
申请日：2014-05-15
Applicant: Japan Display Inc.
Inventor： Yosuke Hyodo , Koichi Igeta , Toshiki Kaneko , Noboru Kunimatsu , Hidehiro Sonoda
IPC: G02F1/1339 , G02F1/1337
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 having organic and alignment films, a second substrate adhered to the first substrate by a sealant which surrounds a pixel region, a columnar spacer formed on the second substrate defining a distance between the first substrate and the second substrate, and a recessed portion formed in the organic film of the pixel region, the recessed portion facing to the columnar spacer. The recessed portion has a convex portion at a bottom of the recessed portion, and a height of a top of the convex portion from the first substrate is lower than a height of an upper surface of the organic film from the first substrate. A thickness of an alignment film on the convex portion is smaller than a thickness of the bottom of the recessed portion, and a top of the columnar spacer is in contact with the convex portion.
Abstract translation: 显示装置包括具有有机和取向膜的第一基板，通过围绕像素区域的密封剂粘附到第一基板的第二基板，形成在第二基板上的形成在第一基板和第二基板之间的距离的柱状间隔件， 以及形成在像素区域的有机膜中的凹部，凹部与柱状间隔物相对。 凹部在凹部的底部具有凸部，凸部的与第一基板的顶部的高度比第一基板的有机薄膜的上表面的高度低。 凸部上的取向膜的厚度小于凹部的底部的厚度，柱状间隔件的顶部与凸部接触。
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公开(公告)号：US20140218651A1
公开(公告)日：2014-08-07
申请号：US14249644
申请日：2014-04-10
Inventor： Masahiro Ohkubo , Koichi Igeta , Go Saitou , Katsuhiro Kato
IPC: G02F1/1339
CPC classification number: G02F1/13394 , G02F1/133514 , G02F1/1339 , G02F2001/133519
Abstract: A liquid crystal display device including a liquid crystal display panel having, a first substrate, a second substrate, a sealing material provided between the first substrate and the second substrate, a liquid crystal layer sealed in a region surrounded by the sealing material between the first substrate and the second substrate. The first substrate includes a plurality of first cell regions having a pixel electrode and a thin film transistor arranged in a matrix, and the second substrate includes a protective film over the second substrate and a light blocking film coated with the protective film on a surface of the second substrate on the liquid crystal layer side.
Abstract translation: 一种液晶显示装置，包括具有第一基板，第二基板，设置在第一基板和第二基板之间的密封材料的液晶显示面板，液晶层，密封在第一和第二基板之间的密封材料包围的区域中 基板和第二基板。 第一基板包括具有排列成矩阵状的像素电极和薄膜晶体管的多个第一单元区域，第二基板包括在第二基板上的保护膜和在该表面上涂覆有保护膜的遮光膜 液晶层侧的第二基板。
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Patent Agency Ranking
公开(公告)号：US11573458B2
公开(公告)日：2023-02-07
申请号：US17736137
申请日：2022-05-04
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：US11550188B2
公开(公告)日：2023-01-10
申请号：US17448718
申请日：2021-09-24
Applicant: Japan Display Inc.
Inventor： Ayaka Higuchi , Koichi Igeta
IPC: G02F1/1337 , G02F1/1335 , G02F1/1339
Abstract: The purpose of the present invention is to realize the photo alignment film which has good alignment ability and good adhesive strength with the seal material. The structure of the invention is:
A liquid crystal display device including a first substrate, having pixel electrodes and a first alignment film, and a second substrate adhere to each other by seal material, and the liquid crystal being sealed inside, in which the first alignment film is formed from a first polyimide, which receives a photo alignment treatment, and a second polyimide, which does not receive the photo alignment treatment, the first polyimide exists 75 to 98 weight % at a surface of the first alignment film on the pixel electrode and at an interface with the seal material, the second polyimide increases gradually in going to depth direction from the surface of the first alignment film in a cross sectional view.-
公开(公告)号：US10310309B2
公开(公告)日：2019-06-04
申请号：US14815409
申请日：2015-07-31
Applicant: Japan Display Inc.
Inventor： Koichi Igeta , Hirotaka Imayama
IPC: G02F1/1339 , G02F1/1333 , G02F1/1362
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：US20180314113A1
公开(公告)日：2018-11-01
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
CPC classification number: G02F1/133723 , G02F1/133345 , G02F1/133788 , G02F1/1339 , G02F1/1345 , G02F1/13452 , G02F1/136286 , G02F1/1368 , G02F2001/133368 , G02F2001/134345 , G02F2001/13629 , G02F2201/501
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：US20160041436A1
公开(公告)日：2016-02-11
申请号：US14815409
申请日：2015-07-31
Applicant: Japan Display Inc.
Inventor： Koichi Igeta , Hirotaka Imayama
IPC: G02F1/1343 , G02F1/1335 , G02F1/1333
CPC classification number: G02F1/133308 , G02F1/1339 , G02F2001/133311
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.
Abstract translation: 为了提高显示装置的显示质量，显示装置包括显示部分和围绕显示部分周围的框架部分。 显示装置中的基板包括构成电路部的导体图案和覆盖导体图案的作为有机膜的绝缘膜。 绝缘膜延伸到基板的周边边缘。 在绝缘膜的角部形成有沿厚度方向贯通绝缘膜的狭缝。 狭缝形成在不与电路部分重叠的位置处。
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