公开(公告)号：US20250068010A1

公开(公告)日：2025-02-27

申请号：US18808373

申请日：2024-08-19

Applicant: Japan Display Inc.

Inventor： Koichi IGETA ,  Kasumi HASE ,  Yoshiro AOKI

IPC: G02F1/1335 ,  G02F1/1339

Abstract: A liquid crystal panel has a hole allowing light to pass through or to be shielded, and suppresses an influence on the light passing through the hole. A liquid crystal panel includes: a first substrate having a flat plate shape; a second substrate arranged to face the first substrate; a light shielding film spreading along an inner surface of the second substrate and having the hole formed therein; a plurality of spacers arranged on an outer side of a region between the substrates, the region corresponding to the hole; and a liquid crystal sandwiched between the first substrate and the second substrate. The second substrate is held such that a distance from the first substrate becomes larger as coming closer to the hole, and the portion corresponding to the hole has a shape protruding in a direction extending from the first substrate to the second substrate.

公开(公告)号：US20240045274A1

公开(公告)日：2024-02-08

申请号：US18366099

申请日：2023-08-07

Applicant: Japan Display Inc.

Inventor： Koichi IGETA ,  Tenfu NAKAMURA ,  Kentaro OKUYAMA

IPC: G02F1/1339 ,  G02F1/1362 ,  G02F1/1334 ,  G02F1/1333

CPC classification number: G02F1/1339 ,  G02F1/136286 ,  G02F1/1334 ,  G02F1/133305

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.

公开(公告)号：US20220260868A1

公开(公告)日：2022-08-18

申请号：US17736137

申请日：2022-05-04

Applicant: Japan Display Inc.

Inventor： Koichi IGETA ,  Hirotaka IMAYAMA

IPC: G02F1/1339 ,  G02F1/1335

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.

公开(公告)号：US20210088829A1

公开(公告)日：2021-03-25

申请号：US17115106

申请日：2020-12-08

Applicant: Japan Display Inc.

Inventor： Koichi IGETA ,  Hidehiro SONODA

IPC: G02F1/1333 ,  G02F1/1362 ,  G02F1/1337 ,  G02F1/1339

Abstract: A display apparatus (DSP1) includes: a flexible substrate (10) configured to include a region (DA1) and a region (DA2) on its surface; a liquid crystal film (LQ); and a photolytic alignment film configured to be in contact with the liquid crystal film (LQ). A material of the alignment film (AL1) in the region (DA1) is different from a material of the alignment film (AL2) in the region (DA2).

公开(公告)号：US20250052937A1

公开(公告)日：2025-02-13

申请号：US18795401

申请日：2024-08-06

Applicant: Japan Display Inc. ,  OSAKA UNIVERSITY

Inventor： Koichi IGETA ,  Junji KOBASHI ,  Yasushi TOMIOKA ,  Shinichiro OKA ,  Hiroyuki YOSHIDA

IPC: G02B5/30 ,  C09K19/30 ,  C09K19/36 ,  C09K19/50

Abstract: According to one embodiment, a liquid crystal optical element includes a transparent substrate, and a liquid crystal layer which faces the transparent substrate and has a cholesteric liquid crystal and an additive exhibiting liquid crystallinity. Refractive anisotropy of the additive is less than refractive anisotropy of the liquid crystal layer.

公开(公告)号：US20240015993A1

公开(公告)日：2024-01-11

申请号：US18346277

申请日：2023-07-03

Applicant: Japan Display Inc.

Inventor： Shinichiro OKA ,  Koichi IGETA ,  Yasuyuki YAMADA ,  Hiroumi KINJO

IPC: H10K30/87 ,  H10K30/50 ,  G02F1/1337

CPC classification number: H10K30/87 ,  H10K30/50 ,  G02F1/133753

Abstract: According to one embodiment, a photovoltaic cell device includes a transparent substrate including a first main surface and a second main surface opposed to the first main surface, a liquid crystal layer disposed on the second main surface side of the transparent substrate and including a cholesteric liquid crystal including liquid crystal molecules, and photovoltaic cells disposed on at least one of the first main surface side and the second main surface side of the transparent substrate, each formed into a strip shape, and arranged with a predetermined gap between the photovoltaic cells.

公开(公告)号：US20220308402A1

公开(公告)日：2022-09-29

申请号：US17655676

申请日：2022-03-21

Applicant: Japan Display Inc.

Inventor： Shinichiro OKA ,  Yasushi TOMIOKA ,  Koichi IGETA ,  Junji KOBASHI

IPC: G02F1/1337 ,  G02F1/1335

Abstract: According to one embodiment, a liquid crystal optical element includes a substrate, a plurality of structures, a first liquid crystal layer including a plurality of liquid crystal molecules having alignment directions fixed, and a second liquid crystal layer including a plurality of liquid crystal molecules having alignment directions fixed. In an area overlapping a groove, a first director of the first liquid crystal layer extends along the groove, and a second director of the second liquid crystal layer is uniformly aligned with the first director of the second surface side, on the third surface side, and turns in planar view.

公开(公告)号：US20180252970A1

公开(公告)日：2018-09-06

申请号：US15877699

申请日：2018-01-23

Applicant: Japan Display Inc.

Inventor： Yasushi IWAKABE ,  Jin HIROSAWA ,  Koichi IGETA

IPC: G02F1/1343 ,  G09G3/36 ,  G09G3/20 ,  G02F1/1335 ,  G02F1/1333

CPC classification number: G02F1/134309 ,  G02F1/133512 ,  G02F1/134363 ,  G02F2001/134372 ,  G09G3/001 ,  G09G3/3648 ,  G09G2300/0426

Abstract: A display device includes: a light shielding film; a plurality of image lines and a plurality of scanning lines present on an insulating base material; a pixel electrode and a common electrode present in a sub-pixel area surrounded by the plural image lines and the plural scanning lines in a plan view; and a liquid crystal layer driven by an electric field generated between the pixel electrode and the common electrode. A shape of the pixel electrode in a light transmission area surrounded by the light shielding film is a linear shape having no bending portion. The common electrode is overlapped on the plural image lines and the plural scanning lines, and has an opening overlapped on the pixel electrode. Further, each liquid crystal molecule of the liquid crystal layer has a positive dielectric constant. The sub-pixel area has a width of 13 μm or less.

公开(公告)号：US20170337864A1

公开(公告)日：2017-11-23

申请号：US15599946

申请日：2017-05-19

Applicant: Japan Display Inc.

Inventor： Koichi IGETA

IPC: G09G3/20 ,  G09G3/18 ,  G02F1/133 ,  H01L25/04 ,  G09G3/36

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.

公开(公告)号：US20170108750A1

公开(公告)日：2017-04-20

申请号：US15274677

申请日：2016-09-23

Applicant: Japan Display Inc.

Inventor： Koichi IGETA ,  Masateru MORIMOTO

IPC: G02F1/1362 ,  G02F1/1339 ,  G02F1/1343 ,  G02F1/1368 ,  G02F1/1333

CPC classification number: G02F1/136286 ,  G02F1/133345 ,  G02F1/13394 ,  G02F1/134309 ,  G02F1/134336 ,  G02F1/1368 ,  G02F2001/134372 ,  G02F2201/121 ,  G02F2201/123 ,  G02F2202/103 ,  G02F2202/104

Abstract: A liquid crystal display device includes a thin-film transistor (TFT) substrate and a counter substrate disposed opposite to the TFT substrate. The TFT substrate has a scanning line, a video signal line, and a TFT formed thereon, the TFT being connected to the scanning line and video signal line. The TFT substrate and the counter substrate sandwich liquid crystal therebetween. The TFT substrate has a first electrode connected to the TFT, an insulating film, and a second electrode disposed opposite to the first electrode with the insulating film interposed therebetween. The TFT substrate further has a third electrode formed in the same layer as that of the scanning line. The second electrode has an opening formed between the third electrode and the liquid crystal. The opening has a diameter parallel to a direction in which the scanning line extends and a diameter perpendicular to the scanning line extending direction.