Back light device and a liquid crystal display applying thereof

Liquid crystal cells – elements and systems – Particular structure – Particular illumination

Reexamination Certificate

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Details

C349S067000, C349S095000

Reexamination Certificate

active

06867829

ABSTRACT:
A back light device. This back light device includes a light guide plate and a plurality of lamps, wherein the light guide plate has a first plane and a second plane opposite the first plane. The back light device of this invention has a plurality of arc-shaped recess regions to implement the lamps inside so that light from the lamps can be uniformly emitted by the light guide plate through the arc-shaped recess regions. Thus, a liquid crystal display implemented with the back light device can be uniformly lit.

REFERENCES:
patent: 4330813 (1982-05-01), Deutsch
patent: 5278545 (1994-01-01), Streck
patent: 6469755 (2002-10-01), Adachi et al.
patent: 09-005742 (1997-01-01), None
patent: 10-133027 (1998-05-01), None

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