Liquid crystal display with photodetectors having polarizing...

Details Liquid crystal display with photodetectors having polarizing... Liquid crystal display with photodetectors having polarizing...

2006-06-27

2006-06-27

Schechter, Andrew (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S061000, C349S096000, C362S611000

Reexamination Certificate

active

07068333

ABSTRACT:
The quantity of light from a backlight is monitored by a first photodetector, and the environment on the part of a user is monitored by a second photodetector disposed in the rear of a liquid crystal panel, not on the front thereof. It is possible to exclude the influence of external light from the user side on the first photodetector which detects the quantity of light from the backlight.

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