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:
Dec. 24, 2013

Filed:

Oct. 18, 2011
Applicants:

Tai-cherng Yu, New Taipei, TW;

Da-wei Lin, New Taipei, TW;

Inventors:

Tai-Cherng Yu, New Taipei, TW;

Da-Wei Lin, New Taipei, TW;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G09F 13/04 (2006.01); F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A backlight module includes a light guide plate and a plurality of light sources. The light guide plate includes a wedge-shaped light incident part and a flat panel. The wedge-shaped light incident part and the flat panel have a common bottom surface. The height of the wedge-shaped light incident part is greater than that of the flat panel. The wedge-shaped light incident part includes a light incident surface perpendicular to the bottom surface and a sloped surface sloping relative to the light incident surface and connects to the flat panel. The sloped surface defines a plurality of V-shaped grooves for preventing light leak. The flat panel includes a light emitting surface opposite to the bottom surface. The plurality of light sources is positioned adjacent to the light incident surface.


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