Backlight module having light guide plate with recesses

Details Backlight module having light guide plate with recesses Backlight module having light guide plate with recesses

2007-11-27

2010-11-02

May, Robert J (Department: 2885)

Illumination

Edge lighted panel

Light guide

C362S623000, C362S625000, C362S615000, C362S613000

Reexamination Certificate

active

07824094

ABSTRACT:
An exemplary backlight module (1) includes a light source (11) and a light guide plate (12). The light guide plate includes a light incident surface (121) to which the light source is placed adjacent, and a bottom surface (122) adjacent the light incident surface. The bottom surface defines a plurality of recesses (1222). Each recess defines a first slant (101) facing the light source and an arris (103) at a top of the first slant. The arris of the first slant at each recess is aligned substantially perpendicular to a main path of light beams that propagate from the light source to the recess.

REFERENCES:
patent: 6068382 (2000-05-01), Fukui et al.
patent: 6167182 (2000-12-01), Shinohara et al.
patent: 6454452 (2002-09-01), Sasagawa et al.
patent: 6685329 (2004-02-01), Kim et al.
patent: 6979112 (2005-12-01), Yu et al.
patent: 7507011 (2009-03-01), Ueno et al.
patent: 7517131 (2009-04-01), Hsieh
patent: 2008/0094853 (2008-04-01), Kim et al.

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