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:
Oct. 24, 2017

Filed:

Jul. 29, 2015
Applicant:

Omron Corporation, Kyoto, JP;

Inventors:

Norikazu Kitamura, Osaka, JP;

Yoshimasa Osumi, Kyoto, JP;

Yasuhiro Tanoue, Shiga, JP;

Yoshihiko Takagi, Kyoto, JP;

Norihisa Kanzaki, Shiga, JP;

Masayuki Shinohara, Kyoto, JP;

Junya Fujita, Aichi, JP;

Takamitsu Ishikawa, Aichi, JP;

Takeshi Kakinuma, Gifu, JP;

Jun Kishimoto, Gifu, JP;

Masaaki Hiramatsu, Aichi, JP;

Assignee:

OMRON Corporation, Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0016 (2013.01); G02B 6/0036 (2013.01);
Abstract

A display device has a liquid crystal panel that switches between a transparent state and an opaque state, a first light source, a light guide plate arranged on a back surface of the liquid crystal panel and made of a transparent material, the light guide plate having an incident surface facing the first light source and an outgoing surface facing the back surface of the liquid crystal panel, propagating light emitted from the first light source and incident through the incident surface, and outputting the light toward the liquid crystal panel from the outgoing surface, and a second light source configured to illuminate an object arranged on an opposite side to the liquid crystal panel with the light guide plate interposed therebetween.


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