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:
May. 13, 2014
Filed:
Nov. 07, 2011
Applicants:
Min-hsun Hsieh, Hsinchu, TW;
Chien-yuan Wang, Hsinchu, TW;
Inventors:
Min-Hsun Hsieh, Hsinchu, TW;
Chien-Yuan Wang, Hsinchu, TW;
Assignee:
Epistar Corporation, Hsinchu, TW;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2006.01); G02B 5/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
A light-spreading device is disclosed, wherein the light-spreading structure is formed with a wing-shaped protrusion part extending in a first direction and protruding in a different, second direction, such that light enters a surface on one side of the light-spreading structure, opposite to a recess located on another side of the light-spreading structure. The light-spreading structure also has an uneven surface associated with at least one of the wing-shaped protrusion part, the light-entering surface, and the recess.