Backlight unit and liquid crystal display device including...

Details Backlight unit and liquid crystal display device including... Backlight unit and liquid crystal display device including...

2008-12-24

2011-11-15

Briggs, Nathanael R (Department: 2871)

Illumination

Edge lighted panel

Light guide

C349S062000, C362S623000

Reexamination Certificate

active

08057088

ABSTRACT:
A backlight unit for a liquid crystal display panel includes a lamp, a plurality of optical sheets, a light guide that guides light from the lamp toward the optical sheets, and a reflector facing a rear surface of the light guide. The light guide includes a first plurality of geometric shapes at the rear surface thereof that substantially directs the light incident on the light guide toward the optical sheets, and a second plurality of geometric shapes at a peripheral portion of the rear surface thereof to prevent the reflector from sticking to the light guide, a density of the second plurality of geometric shapes is less than the density of the first plurality of geometric shapes.

REFERENCES:
patent: 2004/0145915 (2004-07-01), Kim et al.
patent: 2009/0122229 (2009-05-01), Kim et al.
patent: 1412609 (2003-04-01), None
patent: 1421729 (2003-06-01), None

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