公开(公告)号：US20230375874A1

公开(公告)日：2023-11-23

申请号：US18318122

申请日：2023-05-16

Applicant: Japan Display Inc. ,  OSAKA UNIVERSITY

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

IPC: G02F1/1335 ,  G02F1/1337 ,  G02F1/13363

CPC classification number: G02F1/133543 ,  G02F1/133703 ,  G02F1/133636

Abstract: According to one embodiment, a liquid crystal optical element comprises a transparent substrate comprising a first main surface and a second main surface opposed to the first main surface, an alignment film disposed on the second main surface, and a liquid crystal layer overlapping the alignment film and comprising a cholesteric liquid crystal and an additive exhibiting a liquid crystalline property. Refractive anisotropy of the additive is greater than refractive anisotropy of the liquid crystal layer.

公开(公告)号：US20230375764A1

公开(公告)日：2023-11-23

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

IPC: G02B5/30 ,  G02B5/18 ,  C09K19/36 ,  C09K19/54

CPC classification number: G02B5/3016 ,  G02B5/1833 ,  G02B5/1857 ,  C09K19/36 ,  C09K19/54

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.

公开(公告)号：US20230258849A1

公开(公告)日：2023-08-17

申请号：US18304810

申请日：2023-04-21

Applicant: Japan Display Inc. ,  OSAKA UNIVERSITY

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

IPC: G02B5/18 ,  G02B5/30

CPC classification number: G02B5/1833 ,  G02B5/3016 ,  G02B5/208

Abstract: According to one embodiment, a liquid crystal optical element includes a substrate, a first alignment film, a second alignment film opposite to the first alignment film, a spacer between the substrate and the second alignment film, and a liquid crystal layer in contact with the first alignment film and the second alignment film. The liquid crystal layer includes liquid crystal molecules including a plurality of first liquid crystal molecules arranged along a boundary surface with the first alignment film and a plurality of second liquid crystal molecules arranged along a boundary surface with the second alignment film, and is cured in a state where alignment directions of the liquid crystal molecules are fixed.

公开(公告)号：US20240106132A1

公开(公告)日：2024-03-28

申请号：US18530249

申请日：2023-12-06

Applicant: Japan Display Inc.

Inventor： Mitsutaka OKITA ,  Shinichiro OKA

IPC: H01Q15/14 ,  H01Q21/24

CPC classification number: H01Q15/148 ,  H01Q21/245

Abstract: According to one embodiment, an intelligent reflecting surface includes a first substrate, a second substrate, a sealing material, a liquid crystal layer, and a first transfer. The first substrate includes a plurality of patch electrodes, and a first power supply pad. The second substrate includes a common electrode, and a first power receiving pad electrically connected to the common electrode. The first transfer is in contact with the first power supply pad and the first power receiving pad. An uppermost layer of the first power supply pad, which is in contact with the first transfer, is formed of a transparent conductive material. The first power receiving pad is formed of a transparent conductive material. The common electrode is formed of metal.

公开(公告)号：US20240085746A1

公开(公告)日：2024-03-14

申请号：US18509747

申请日：2023-11-15

Applicant: Japan Display Inc.

Inventor： Shigesumi ARAKI ,  Mitsutaka OKITA ,  Daiichi SUZUKI ,  Shinichiro OKA

IPC: G02F1/1343 ,  G02F1/1368

CPC classification number: G02F1/134381 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2203/02

Abstract: An intelligent reflecting surface includes a substrate having a first surface including a first side and a reflective region including a plurality of reflective elements arranged on the first surface, a plurality of reflective elements separated from each other by a first interval and arranged at a first pitch in a first direction and a second direction orthogonal to the first direction. Twice a distance from the first side to a first reflective element adjacent to the first side among the plurality of reflective elements is a sum of an integral multiple of the first pitch and the first interval.

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：US20230221603A1

公开(公告)日：2023-07-13

申请号：US18184725

申请日：2023-03-16

Applicant: Japan Display Inc.

Inventor： Yosuke HYODO ,  Shinichiro OKA ,  Hirofumi OHIRA

IPC: G09G3/36

CPC classification number: G09G3/3677 ,  G09G2320/0626

Abstract: According to one embodiment, a display device includes a first display panel, a second display panel and an adhesive layer which adheres the first and second display panels. The first display panel includes a first scanning line, a first signal line, a first pixel electrically connected to the first scanning line and the first signal line, and the first pixel includes a first pixel electrode including first line portions extending parallel to the first signal line. The second display panel includes a second scanning line, a second signal line, and a second pixel electrically connected to the second scanning line and the second signal line, and the second pixel includes a second pixel electrode including second line portions intersecting the second signal line in plan view.

公开(公告)号：US20220397783A1

公开(公告)日：2022-12-15

申请号：US17664721

申请日：2022-05-24

Applicant: Japan Display Inc.

Inventor： Yosuke HYODO ,  Shinichiro OKA ,  Hirofumi OHIRA

IPC: G02F1/1347 ,  G02F1/1339 ,  G02F1/1362 ,  G02F1/1343

Abstract: According to one embodiment, a display device includes a first display panel, a second display panel and an adhesive layer which adheres the first and second display panels. The first display panel includes a first scanning line, a first signal line, a first pixel electrically connected to the first scanning line and the first signal line, and the first pixel includes a first pixel electrode including first line portions extending parallel to the first signal line. The second display panel includes a second scanning line, a second signal line, and a second pixel electrically connected to the second scanning line and the second signal line, and the second pixel includes a second pixel electrode including second line portions intersecting the second signal line in plan view.

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：US20220187646A1

公开(公告)日：2022-06-16

申请号：US17545512

申请日：2021-12-08

Applicant: Japan Display Inc.

Inventor： Lu JIN ,  Yosuke HYODO ,  Shinichiro OKA

IPC: G02F1/13357 ,  G02F1/1335

Abstract: According to one embodiment, an illumination device includes a first liquid crystal element opposed to a light emitting region, a second liquid crystal element including a first main surface and a second main surface, a first phase difference layer disposed on the second main surface, a second phase difference layer disposed on the second main surface and adjacent to the first phase difference layer, and a diffusion layer opposed to the first phase difference layer and the second phase difference layer. Each of the first liquid crystal element and the second liquid crystal element has a plurality of liquid crystal molecules, and is cured in a state in which an alignment direction of the liquid crystal molecules has continuously changed in plane.