The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Mar. 18, 2025

Filed:

Feb. 15, 2024
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Koichi Igeta, Tokyo, JP;

Shinichiro Oka, Tokyo, JP;

Yasushi Tomioka, Tokyo, JP;

Junji Kobashi, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02F 1/1347 (2006.01);
U.S. Cl.
CPC ...
G02B 5/3016 (2013.01); G02F 1/13471 (2013.01);
Abstract

According to one embodiment, a liquid crystal optical element including a first substrate including a first transparent substrate, a first alignment film, and a first liquid crystal layer which includes first cholesteric liquid crystals, and which reflects part of light incident through the first transparent substrate toward the first transparent substrate, a second substrate including a second transparent substrate, a second alignment film, and a second liquid crystal layer which includes second cholesteric liquid crystals, and which reflects part of light transmitted through the first liquid crystal layer toward the first transparent substrate, and a transparent adhesive layer which adheres the first substrate and the second substrate.


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