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:
Jan. 21, 2025
Filed:
Mar. 05, 2024
Sharp Display Technology Corporation, Kameyama, JP;
Yuichi Kawahira, Kameyama, JP;
Masahiro Hasegawa, Kameyama, JP;
Ryosuke Saigusa, Kameyama, JP;
Jianeng Xu, Kameyama, JP;
Akira Sakai, Kameyama, JP;
Sharp Display Technology Corporation, Kameyama, JP;
Abstract
A color filter includes a frame portion in which the reflectance of light incident from the transparent substrate side is less than the reflectance of light incident from the overcoat layer side and an opening portion in which the reflectance of light incident from the transparent substrate side is greater than the reflectance of light incident from the overcoat layer side. The color filter satisfies n×d<α×A+β×A+γ, where nis the refractive index of the transparent base coat layer, dnm is the film thickness of the transparent base coat layer, and A is the opening ratio of the color filter, and where A, α, β, and γ respectively satisfy A=(area of the opening portion)/(area of an active area), α=436.7×n−837.2, β=−315.8×n+523.7, and γ=−358.3×n+771.8.