LCD with power saving features

Details LCD with power saving features LCD with power saving features

2006-09-19

2006-09-19

Nguyen, Dung T. (Department: 2871)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S062000

Reexamination Certificate

active

07110062

ABSTRACT:
Energy efficient transmissive and transreflective display devices use ambient light from a natural or artificial source to supplement light supplied by a backlight. Ambient light passes through a transmissive diffuser to a rear surface of a transmissive display panel. Additional energy efficiency is achieved by using one or more photo-sensors to detect the amount of ambient light and automatically adjusting the backlight intensity as a function of photo-sensor output. As a result, backlight intensity and power usage can be minimized while maintaining the viewability of images shown on the display.

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patent: 6184946 (2001-02-01), Ando et al.
“Chapter 1: The Growing World of LCDs” and other pages totaling 46 pages, downloaded from: http://www.sharp.co.jp/sc/library/lcd—e, Oct. 23, 1998.

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