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:
Apr. 05, 2022
Filed:
Sep. 09, 2019
Nippon Kayaku Kabushiki Kaisha, Tokyo, JP;
Kouichi Tanaka, Tokyo, JP;
Tomoyuki Hayasaki, Tokyo, JP;
NIPPON KAYAKU KABUSHIKI KAISHA, Tokyo, JP;
Abstract
A head-up display system including an optical laminate having at least one substrate material and a half-wave plate, and a display unit that makes display light representing a display image into S-polarized light or P-polarized light and emits the S-polarized light or the P-polarized light. In the head-up display system, an angle formed by a polarization axis of the S-polarized light or the P-polarized light incident from a position inclined at not less than 45° and not more than 65° with respect to an axis perpendicular to a surface of the optical laminate and a slow axis of the half-wave plate is not less than 35° and not more than 44°.