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.

Date of Patent:
Mar. 15, 2016

Filed:

Feb. 05, 2014
Applicant:

Wistron Corporation, New Taipei, TW;

Inventors:

Chin-Yung Liu, New Taipei, TW;

Ming-Hung Tsai, New Taipei, TW;

Assignee:

Wistron Corporation, New Taipei, TW;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F21V 7/04 (2006.01); F21V 8/00 (2006.01); G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
G02B 6/0033 (2013.01); G02B 6/0001 (2013.01); G02B 6/0096 (2013.01); G02F 1/133615 (2013.01);
Abstract

A backlight module includes a back plate, an optical film, a light source and optical microstructures. The back plate has a supporting surface. The optical film is disposed on the back plate. The supporting surface and the optical film have a gap therebetween. The light source disposed on the supporting surface is adapted to emit light toward the optical microstructures. Each optical microstructure includes first and second transparent structures. The first transparent structure connected to the supporting surface has front and rear ends. The front end facing toward the light source has a first concave surface. The rear end facing away from the light source has a convex surface. The second transparent structure connected to the first transparent structure has front and rear surfaces tilted in relative to the supporting surface. The front surface faces toward the light source, and the rear surface faces away from the light source.


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