Method and apparatus for controlling the brightness of a display

Details Method and apparatus for controlling the brightness of a display Method and apparatus for controlling the brightness of a display

1997-08-01

2000-11-21

Shankar, Vijay

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

349 68, G09G 336, G02F 11335

Patent

active

061510084

ABSTRACT:
A method and apparatus of controlling the brightness level of an LCD display. The brightness of a display having two light bulbs may be controlled by illuminating only one bulb to provide a relatively low brightness level or by illuminating both bulbs to provide a relatively high brightness level. This method and apparatus may be particularly useful in AC/DC powered devices, as a single bulb may be lit when the device is operating on DC power to conserve battery power, and both bulbs may be lit when the device is operating on AC power to provide enhanced brightness.

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