公开(公告)号：US20240310634A1

公开(公告)日：2024-09-19

申请号：US18605855

申请日：2024-03-15

Applicant: Japan Display Inc.

Inventor： Yasuhiro TAKAHASHI ,  Shinichi KOMURA ,  Jin HIROSAWA

IPC: G02B27/01 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13363

CPC classification number: G02B27/0172 ,  G02B5/3016 ,  G02B5/3083 ,  G02B6/0068 ,  G02F1/133524 ,  G02F1/133615 ,  G02F1/133638 ,  G02B2027/0105 ,  G02B2027/0136 ,  G02B2027/0174

Abstract: According to one embodiment, a display device includes a display module configured to emit display light which is linearly polarized light, a first retardation film, a holographic optical element which is configured to reflect first circularly polarized light having a specific incident angle and transmit light having an incident angle which is different from the specific incident angle, a second retardation film, a reflective polarizer which is configured to reflect first linearly polarized light and transmit second linearly polarized light, a third retardation film, and a lens element which has a lens effect of condensing first circularly polarized light and converting first circularly polarized light into second circularly polarized light.

公开(公告)号：US20240249694A1

公开(公告)日：2024-07-25

申请号：US18414631

申请日：2024-01-17

Applicant: Japan Display Inc.

Inventor： Koichi OKUDA ,  Shinichi KOMURA

IPC: G09G3/36

CPC classification number: G09G3/3648 ,  G09G2320/02

Abstract: A display device includes a display panel, an optical element configured to collect light emitted from the display panel to user's eyes, and a drive circuit configured to drive the display panel based on an image signal having information on an image. The drive circuit generates a corrected image obtained by applying correction to the image to cause distortion, based on distortion caused by the optical element, and displays the corrected image on the display panel.

公开(公告)号：US20240184110A1

公开(公告)日：2024-06-06

申请号：US18526293

申请日：2023-12-01

Applicant: Japan Display Inc.

Inventor： Yasuhiro TAKAHASHI ,  Shinichi KOMURA

IPC: G02B27/01

CPC classification number: G02B27/0101 ,  G02B2027/0118

Abstract: According to an aspect, a head up display includes, inside a case: a display panel that is configured to emit light to project an image; a first mirror that is configured to reflect light having passed through the display panel; and a semi-reflective mirror provided between the display panel and the first mirror. The semi-reflective mirror includes a cholesteric liquid crystal layer that is configured to transmit light from the display panel and reflect light from the first mirror. An acute angle is formed between a surface of the semi-reflective mirror through which light from the display panel is transmitted and a surface of the display panel through which light from the display panel is emitted.

公开(公告)号：US20240142827A1

公开(公告)日：2024-05-02

申请号：US18492859

申请日：2023-10-24

Applicant: Japan Display Inc.

Inventor： Jin HIROSAWA ,  Shunichi KIMURA ,  Toshiharu MATSUSHIMA ,  Yuji MAEDE ,  Shinichi KOMURA

IPC: G02F1/1343

CPC classification number: G02F1/134309

Abstract: According to one embodiment, an optical control element comprises a first substrate, a second substrate, a liquid crystal layer arranged between the first substrate and the second substrate, the first substrate include a first electrode, a second electrode provided on the first electrode, and a high-resistance layer provided on the first electrode and the second electrode, wherein the second substrate comprises a third electrode, a plurality of circular apertures are provided in each of the second electrodes, and lines connecting centers of the plurality of apertures constitute a triangle.

公开(公告)号：US20230144819A1

公开(公告)日：2023-05-11

申请号：US17981558

申请日：2022-11-07

Applicant: Japan Display Inc.

Inventor： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC: F21V8/00

CPC classification number: G02B6/0036 ,  G02B6/0045 ,  G02B6/0068

Abstract: According to one embodiment, an illumination device includes a light guide including a first main surface, a second main surface, a first side surface, and a second side surface, a plurality of convex portions provided on the second main surface, and a first light source element and a second light source element opposing the first side surface and the second side surface, respectively, and when an incident angle of a main ray of the light propagating in the light guide is expressed by θ, a diffusion angle of the light is δ, an angle of the convex portion of the light guide is α, a critical angle of the light guide is θc, and an angle which satisfies (90°−θc) is β0, a relationship: ((β0+δ)/3)

公开(公告)号：US20230114307A1

公开(公告)日：2023-04-13

申请号：US17962548

申请日：2022-10-10

Applicant: Japan Display Inc.

Inventor： Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA ,  Hiroaki KIJIMA

IPC: H01S5/40

Abstract: According to one embodiment, an illumination device includes a light guide including an upper surface, a lower surface and a light entering surface, a first light emitting portion, a second light emitting portion, and a third light emitting portion. A first surface, a second surface, a third surface and a fourth surface of the upper surface are arranged in this order in a first direction. A width of the first surface is less than a width of the second surface, and the width of the second surface is less than a width of the third surface. An angle between the light entering surface and the first surface is an acute angle. The first light emitting portion, the second light emitting portion and the third light emitting portion face the light entering surface.

公开(公告)号：US20220365271A1

公开(公告)日：2022-11-17

申请号：US17663043

申请日：2022-05-12

Applicant: Japan Display Inc.

Inventor： Hiroaki KIJIMA ,  Shinichi KOMURA ,  Koichi OKUDA ,  Ken ONODA

IPC: F21V8/00

Abstract: According to one embodiment, an illumination device includes a first light guide including a first main surface, a second main surface, a first side surface and a second side surface, a first light source and a first layer including a first prism provided on the second side surface. The first prism protrudes from the second main surface toward the opposite side to the first main surface and has a cross-sectional shape of a triangle with a first slope and a second slope. The incident angle of light emitted from the first light source and entering the first light guide from the second side surface, the angle between the first slope and the first direction, and the angle between the first slope and the second slope are set to values that satisfy the predetermined conditions, respectively.

公开(公告)号：US20220221763A1

公开(公告)日：2022-07-14

申请号：US17708166

申请日：2022-03-30

Applicant: Japan Display Inc.

Inventor： Shunichi KIMURA ,  Toshiharu MATSUSHIMA ,  Shinichi KOMURA

IPC: G02F1/1343 ,  G02F1/1335

Abstract: The purpose of the present invention is to realize a high contrast display with liquid crystal display device using a liquid crystal light valve. A representative structure is as follows. A liquid crystal display device includes a liquid crystal display panel, a backlight, and a liquid crystal light valve; the light valve includes a plurality of first electrodes extending in a first direction and formed on the first substrate; a first insulating film is formed on the first electrode; a plurality of second electrodes are formed in a matrix at predetermined intervals on the first insulating film; a second insulating film is formed on the second electrodes; a plurality of third electrodes extending in a second direction are formed on the second insulating film; the liquid crystal is sandwiched between the third electrodes and the second substrate; the predetermined interval between the second electrodes is 2 to 10 μm.

公开(公告)号：US20220163855A1

公开(公告)日：2022-05-26

申请号：US17666793

申请日：2022-02-08

Applicant: Japan Display Inc.

Inventor： Yoshiro AOKI ,  Shinichi KOMURA ,  Kazuhide MOCHIZUKI

IPC: G02F1/1362 ,  H04M1/02

Abstract: According to one embodiment, an electronic device includes a liquid crystal panel and a camera. The liquid crystal panel includes a display area and an incident light control area. The camera overlaps the incident light control area. The incident light control area includes a first annular light-shielding portion and a second annular light-shielding portion formed inside the first annular light-shielding portion.

公开(公告)号：US20180107029A1

公开(公告)日：2018-04-19

申请号：US15730076

申请日：2017-10-11

Applicant: Japan Display Inc.

Inventor： Ken ONODA ,  Shinichi KOMURA ,  Youichi ASAKAWA ,  Toshihiko FUKUMA

IPC: G02F1/01 ,  F21V8/00 ,  G02F1/1335

CPC classification number: G02F1/0105 ,  G02B6/003 ,  G02B6/0036 ,  G02F1/133514 ,  G02F1/133526 ,  G02F1/133528 ,  G02F1/133615 ,  G02F2001/133607

Abstract: According to one embodiment, an illumination device includes a first member, a second member, a first light source. The first member includes a first prism array including first prisms aligned in a first direction. The second member includes a second prism array including second prisms aligned in a second direction. The second member disposed more closely to a first A side than to the first member. The first light source disposed more closely to a second A side than to the second member to apply a parallel light beam to a second B side. The parallel light beam from the first light source is made incident on the second prism array and incident on the first prism array without passing through a light guide.