Liquid crystal display device using dual light units

Details Liquid crystal display device using dual light units Liquid crystal display device using dual light units

2006-04-11

2006-04-11

Dudek, James A. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S064000, C349S065000

Reexamination Certificate

active

07027113

ABSTRACT:
An LCD includes a liquid crystal panel, first and second polarizing plates attached to opposing surfaces of the liquid crystal panel, a first front light unit over a front side of the liquid crystal panel, a second front light unit over a rear side of the liquid crystal panel, a first film disposed between the first polarizing plate and the first front light unit, for receiving a surrounding light and directing the surrounding light toward the rear side of the liquid crystal panel, and a diffusion sheet disposed between the second polarizing plate and the second front light unit.

REFERENCES:
patent: 2001/0004275 (2001-06-01), Umemoto et al.
patent: 2001/0007489 (2001-07-01), Umemoto et al.
patent: 2003/0043315 (2003-03-01), Umemoto et al.
patent: 2005/0046768 (2005-03-01), Wu
patent: 1113310 (2001-07-01), None
patent: 1020010095035 (2001-11-01), None
patent: 1020030047575 (2003-06-01), None

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