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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.:

US 11067798 B1

PDFFull Text
Date of Patent:
Jul. 20, 2021

Filed:

Sep. 13, 2016

Head-up display device

Applicant:

Denso Corporation, Kariya, JP;

Inventors:

Yu Togasaki, Kariya, JP;

Takahiro Nambara, Kariya, JP;

Assignee:

DENSO CORPORATION, Kariya, JP;

Attorney:

Harness, Dickey & Pierce, P.L.C.

Primary Examiner:

Jessica M Merlin

Assistant Examiner:

Mark D Teets

Int. Cl.
CPC ...
G02B 27/01 (2006.01); B60K 35/00 (2006.01); G02F 1/1335 (2006.01); G02F 1/13357 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0101 (2013.01); B60K 35/00 (2013.01); G02F 1/133528 (2013.01); G02F 1/133536 (2013.01); G02F 1/133606 (2013.01); B60K 2370/155 (2019.05); B60K 2370/31 (2019.05); B60K 2370/334 (2019.05); G02B 2027/0118 (2013.01); G02F 1/133607 (2021.01);
Abstract

A head-up display device that displays a virtual image to be viewable by an occupant in a movable body includes: a light source part which emits light source light; a liquid crystal panel integrally having a pair of polarizers for liquid crystals and a liquid crystal layer disposed between the polarizers in a stacked state; and an additional polarizer arranged in an optical path between the light source part and the liquid crystal panel. The additional polarizer and the pair of polarizers for liquid crystals have properties of transmitting polarized light along a transmission axis and shielding polarized light along a shielding axis which intersects the transmission axis. The additional polarizer is arranged such that the transmission axis and the shielding axis respectively match those of a polarizer for liquid crystals adjacent to the light source part, of the pair of polarizers for liquid crystals.

Find Patent Forward Citations

Togasaki, Yu. (2021). Head-up display device (U.S. Patent No. 11067798). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11067798

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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