公开(公告)号：US10175533B2

公开(公告)日：2019-01-08

申请号：US15701492

申请日：2017-09-12

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Yudai Numata

IPC: F21V7/04 ,  G02F1/1335 ,  F21V8/00

Abstract: According to one embodiment, a display device includes a display module which emits display light, an optical element which transmits or reflects the display light, a reflective element which retroreflects the display light reflected from the optical element, and a first light-guide which imparts directivity toward the optical element to the display light emitted from the display module.

公开(公告)号：US20180239190A1

公开(公告)日：2018-08-23

申请号：US15866527

申请日：2018-01-10

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Takeo Koito

IPC: G02F1/1335 ,  G02B5/126

CPC classification number: G02F1/133553 ,  G02B5/126 ,  G02B27/2292 ,  G02F1/133528 ,  G02F1/133536 ,  G02F2001/133548

Abstract: According to one embodiment, a display device includes a display which emits display light, an optical element including a transmission axis which transmit first linearly polarized light, which reflects second linearly polarized light crossing the transmission axis and a retroreflective element which retroreflects the display light, and the retroreflective element includes a first portion including a first surface, a second portion including a second surface and a third portion disposed between the first surface and the second surface, and an angle made by the first surface and the second surface is greater than 0° and less than 180°.

公开(公告)号：US10048495B2

公开(公告)日：2018-08-14

申请号：US15168773

申请日：2016-05-31

Applicant: Japan Display Inc.

Inventor： Takeo Koito ,  Yudai Numata

IPC: G02B5/30 ,  G02B27/00 ,  G02B5/124 ,  G02F1/1335 ,  G02F1/13363 ,  G02F1/1343

Abstract: According to one embodiment, a display device, includes a retroreflective element includes a base, and first and second retroreflectors each retroreflecting light made incident without transmitting the base, and a retarder element disposed between a display module and a polarizing element and between the retroreflective element and the polarizing element, the first and second retroreflectors being adjacent to each other, each of the first and second retroreflectors includes a recess portion on a side facing the retarder element.

公开(公告)号：US09989776B2

公开(公告)日：2018-06-05

申请号：US15471598

申请日：2017-03-28

Applicant: Japan Display Inc.

Inventor： Yudai Numata ,  Takeo Koito

IPC: G02B27/22 ,  G02B5/124 ,  G02B27/26 ,  G02B5/30

CPC classification number: G02B27/2292 ,  G02B5/124 ,  G02B5/3058 ,  G02B5/3083 ,  G02B27/26

Abstract: According to one embodiment, a display device includes a display module which emits display light, a polarizing element including a transmission axis which transmits first linearly polarized light, the polarizing element reflecting second linearly polarized light intersecting the transmission axis, and an optical element includes a retroreflector which retroreflects light reflected from the polarizing element, the optical element being curved, and includes a first portion which is concave, and a second portion which is convex and is connected to the first portion.