Back light device for crystal liquid display

Details Back light device for crystal liquid display Back light device for crystal liquid display

1998-07-01

2000-02-22

Spyrou, Cassandra

Illumination

Revolving

362 26, 362 27, 362330, 362331, 362339, 385146, F21V 704

Patent

active

060272228

ABSTRACT:
A back light device for a liquid crystal display is provided, which comprises diffusing prisms formed on the surface of the light guide plate, and the apical angle of the diffusing prism is set in the range of 65-85 degrees for a uniform and brighter illumination using the same light source.

REFERENCES:
patent: 5408388 (1995-04-01), Kobayashi et al.
patent: 5831774 (1998-11-01), Toshima et al.
patent: 5890791 (1999-04-01), Saito

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