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:
Nov. 01, 2011
Filed:
Sep. 15, 2009
Ding-zheng Lin, Hsinchu, TW;
Yaw-ting Wu, Hsinchu, TW;
You-chia Chang, Hsinchu, TW;
Chun-hsiang Wen, Hsinchu, TW;
Jyi-tyan Yeh, Hsinchu, TW;
Ding-Zheng Lin, Hsinchu, TW;
Yaw-Ting Wu, Hsinchu, TW;
You-Chia Chang, Hsinchu, TW;
Chun-Hsiang Wen, Hsinchu, TW;
Jyi-Tyan Yeh, Hsinchu, TW;
Industrial Technology Research Institute, Hsinchu, TW;
Abstract
A lens unit and a projection screen made of the same are disclosed. The lens unit includes a micro lens having a light incident surface and a light emergent surface opposing to the light incident surface; a light absorbing layer formed on the light emergent surface of the micro lens and having a cavity formed therein; a scattering layer formed in the cavity of the light absorbing layer and including a transparent resin blended with scattering particles; and a reflective layer formed on the light absorbing layer and the scattering layer. The projection screen includes a plurality of the lens units, thereby achieving high contrast and high energy utilization efficiency of incident light with a large viewing angle.