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.
Patent No.:
Date of Patent:
Jul. 22, 2025
Filed:
Apr. 26, 2024
Applicant:
Japan Display Inc., Tokyo, JP;
Inventors:
Assignee:
Japan Display Inc., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 9/40 (2018.01); F21V 23/04 (2006.01); F21Y 113/00 (2016.01); G02F 1/1333 (2006.01); H05B 47/13 (2020.01);
U.S. Cl.
CPC ...
F21V 9/40 (2018.02); F21V 23/0471 (2013.01); H05B 47/13 (2020.01); F21Y 2113/30 (2023.05); G02F 1/133308 (2013.01);
Abstract
According to an aspect, an illumination device includes: a light distribution controller having a light distribution control region in which a transmission region of light is changeable; a plurality of types of light sources each disposed at a position facing the light distribution controller; and a controller configured to control operation of the light distribution controller and the plurality of types of light sources. The light distribution controller includes a plurality of liquid crystal panels stacked in a facing direction of the light distribution controller and the light source.