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:
Dec. 02, 2025
Filed:
Jun. 14, 2023
Yazaki Corporation, Tokyo, JP;
Takafumi Yamase, Susono, JP;
YAZAKI CORPORATION, Tokyo, JP;
Abstract
A display device for a vehicle includes: a display, a polarization switching unit, a reflector, and a controller. The polarization switching unit includes a wave plate that can cause emission light of the display to be emitted while changing a polarization direction thereof, and a drive device that can rotate the wave plate between a position of not using polarizing sunglasses and a position of using polarizing sunglasses. The controller rotates the wave plate within a prescribed range, detects luminance values for each fixed rotation angle of the wave plate within a prescribed range from imaging information of an imaging device that transmits a principal component of transmitted light of the wave plate at a position of the eye box, and sets, as a correction angle, a rotation angle of the wave plate corresponding to a maximum luminance value among the luminance values.