Light guide plate and backlight module using the same

Details Light guide plate and backlight module using the same Light guide plate and backlight module using the same

2011-06-28

2011-06-28

Lee, Y My Quach (Department: 2885)

Illumination

Edge lighted panel

Light guide

C362S623000

Reexamination Certificate

active

07967493

ABSTRACT:
A light guide plate has a light incident surface, a light emitting surface and a bottom surface. The bottom surface or the light emitting surface has a plurality of light guide units disposed thereon. Each of the light guide units has a first curved surface and a second curved surface connected with the first curved surface. Both of the first curved surface and the second curved surface are concave surfaces or convex surfaces. In a cross section perpendicular to the light incident surface and passing through the first curved surface and the second curved surface, the first curved surface and the cross section intersect in a first curved line, and the second curved surface and the cross section intersect in a second curved line. A curvature radius of the first curved line is greater than that of the second curved line.

REFERENCES:
patent: 6752507 (2004-06-01), Wang et al.
patent: 6854855 (2005-02-01), Munro et al.
patent: 6971782 (2005-12-01), Nagakubo et al.
patent: 2009/0059621 (2009-03-01), Takahashi et al.
patent: 1664672 (2005-09-01), None

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