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:
Sep. 30, 2025
Filed:
Apr. 10, 2023
Applicant:
Benq Materials Corporation, Taoyuan, TW;
Inventors:
Assignee:
BenQ Materials Corporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 5/30 (2006.01); G02B 5/02 (2006.01); G02F 1/1335 (2006.01); H10K 59/80 (2023.01);
U.S. Cl.
CPC ...
G02B 5/3083 (2013.01); G02B 5/0273 (2013.01); G02F 1/133528 (2013.01); H10K 59/8793 (2023.02);
Abstract
An optical film applied for a viewing side of a display is disclosed. The optical film comprises a birefringent substrate with a birefringence difference not greater than 0.10 having a slow axis and a fast axis perpendicular to each other and an diffusing layer disposed on the birefringent substrate, wherein the total haze of the optical film ranges between 30% and 80% and the reflectivity of the optical film satisfies the relationship (R−R)≤1.0%, and R/(R−R)≥1.6, wherein Ris an average reflectivity of diffuse component and specular component of the optical film, and Ris an average reflectivity of diffuse component of the optical film.