Liquid crystal display device wherein light guide plate...

Details Liquid crystal display device wherein light guide plate... Liquid crystal display device wherein light guide plate...

2007-11-20

2007-11-20

Qi, Mike (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S061000, C362S035000, C362S026000

Reexamination Certificate

active

10952809

ABSTRACT:
A liquid crystal display device has a uniform viewing angle and a reduced cost of a production. The liquid crystal display device includes a light guide plate converting the light from a lamp into a surface light to irradiate the liquid crystal display panel. Multiple patterns, each of the patterns being formed in the light guide plate, have a first curvature of a first sectional surface and a second curvature of a second sectional surface which are different from each other.

REFERENCES:
patent: 5584556 (1996-12-01), Yokoyama et al.
patent: 6752505 (2004-06-01), Parker et al.
patent: 2004/0130912 (2004-07-01), Miyashita
patent: 2004/0141103 (2004-07-01), Kotchick et al.
patent: 2005/0024846 (2005-02-01), Yu et al.

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