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:
Mar. 19, 2024
Filed:
Sep. 24, 2019
Nitto Denko Corporation, Ibaraki, JP;
NITTO DENKO CORPORATION, Ibaraki, JP;
Abstract
A head-up display apparatus that is excellent in viewability. A head-up display apparatus according to an embodiment of the present invention includes: a display unit configured to emit projection light, the display unit including a display cell, and a first polarizing plate with a retardation layer, which is arranged on an emission side of the display cell, and which includes a polarizer and a first retardation layer in the stated order from a display cell side; at least one reflector configured to reflect the projection light; and a second polarizing plate with a retardation layer, which is arranged on a reflection surface of the reflector, and which includes a polarizer and a second retardation layer in the stated order from a reflector side. The first retardation layer and the second retardation layer each have an in-plane retardation Re(550) of from 100 nm to 200 nm.