Backlight module having a plurality of groups of concentric...

Details Backlight module having a plurality of groups of concentric... Backlight module having a plurality of groups of concentric...

2007-10-01

2010-11-02

O Shea, Sandra L (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S612000, C362S615000, C362S619000

Reexamination Certificate

active

07824092

ABSTRACT:
A backlight module includes a light source and a light guide plate. The light source includes a light-emitting surface and at least two mean points. The light guide plate includes an incident surface, an emitting surface adjacent to the incident surface, a reflecting surface opposite to the emitting surface, and at least two groups of microstructures formed on the reflecting surface. Each group of microstructures is arranged concentric relative to a respective mean point of the light-emitting surface of the light source.

REFERENCES:
patent: 6036327 (2000-03-01), Blonder et al.
patent: 6582095 (2003-06-01), Toyoda
patent: 2001/0053075 (2001-12-01), Parker et al.
patent: 2002/0163790 (2002-11-01), Yamashita et al.
patent: 2005/0253980 (2005-11-01), Saito et al.
patent: 2007/0019435 (2007-01-01), Sakurai et al.
patent: 1680853 (2005-10-01), None
patent: 1797106 (2006-10-01), None
patent: 2004-53665 (2004-02-01), None
patent: 2004-111384 (2004-04-01), None

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