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. 07, 2020
Filed:
Dec. 06, 2018
Nano Precision Taiwan Limited, Hsinchu County, TW;
Fang-Hsuan Su, Hsin-Chu, TW;
Fu-Chiang Hsu, Hsin-Chu, TW;
Wan-Jung Li, Hsin-Chu, TW;
Shih-Yuan Liu, Hsin-Chu, TW;
Chia-Hua Chen, Hsin-Chu, TW;
Chi-Tang Hsieh, Hsin-Chu, TW;
Nano Precision Taiwan Limited, Hsinchu County, TW;
Abstract
A projection screen including a light absorbing film and a projection film is provided. The light absorbing film includes a transparent layer and a plurality of light absorbing microstructures, where the light absorbing microstructures are embedded in the transparent layer and arranged at intervals, each of the light absorbing microstructures is asymmetrical to a reference plane, the transparent layer has two surfaces opposite to each other, and the reference plane passes through a geometric center of each of the light absorbing microstructures and is parallel to each of the surfaces, and there is a space between each of the light absorbing microstructures and each of the surfaces. The projection film and the light absorbing film are stacked on each other. A light absorbing film is also provided, and the projections screen and the light absorbing film have good optical quality.