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:
Feb. 17, 2026

Filed:

Nov. 29, 2023
Applicant:

Japan Display Inc., Tokyo, JP;

Inventors:

Kojiro Ikeda, Tokyo, JP;

Takeo Koito, Tokyo, JP;

Tae Kurokawa, Tokyo, JP;

Assignee:

Japan Display Inc., Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1347 (2006.01); F21V 5/00 (2018.01); F21V 7/00 (2006.01); F21V 14/00 (2018.01); F21Y 107/10 (2016.01); F21Y 107/20 (2016.01); G02F 1/1343 (2006.01); G02F 1/29 (2006.01);
U.S. Cl.
CPC ...
G02F 1/1347 (2013.01); F21V 14/003 (2013.01); G02F 1/134309 (2013.01); G02F 1/13439 (2013.01); G02F 1/13471 (2013.01); G02F 1/29 (2013.01); F21V 5/007 (2013.01); F21V 7/0083 (2013.01); F21Y 2107/10 (2016.08); F21Y 2107/20 (2016.08);
Abstract

A lighting device includes a light source having a first optical element and a second optical element emitting directional light, and one liquid crystal optical element transmitting or diffusing the light emitted from the light source. The first and the second optical elements include a first and a second light exit surfaces, and the first and the second light exit surfaces are arranged to direct in different directions. The liquid crystal optical element has a second electrode group arranged adjacent to a first electrode group. The first electrode group has a first transparent electrode and a second transparent electrode. The second electrode group has a third transparent electrode and a fourth transparent electrode. A pitch at which the first transparent electrodes and the second transparent electrodes are alternately arranged is different from a pitch at which the third transparent electrodes and the fourth transparent electrodes are alternately arranged.


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