Method and apparatus for adjusting brightness of an LCD display

Number of patents in Portfolio can not be more than 2000

United States of America Patent

APP PUB NO 20040001076A1
SERIAL NO

10224647

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method for adjusting the brightness of an LCD display has the steps of: (a) dividing an adjustable brightness range of the LCD display into three stages, a high brightness stage, a normal brightness stage and a low brightness stage, (b) determining which stage of said three stages has corresponded to a brightness adjust command, (c) adjusting luminance intensity of an LCD panel or luminance intensity of a lamp based on the brightness adjust command. An apparatus for performing the method has a microprocessor to receive the brightness adjust command, a PWM unit coupled to the microprocessor to adjust the current intensity of the lamp, and a voltage level controller coupled to the microprocessor to adjust the voltage level applied on the LCD panel.

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Patent Owner(s)

Patent OwnerAddress
CHUNTEX ELECTRONIC CO LTD6F NO 2 ALLEY 6 LANE 235 PAO CHIAO RD HSIN TIEN TAIPEI HSIEN R O C

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Leng, Chung-Ming Chung Li City, TW 13 146
Ling, Yu-Ping Ping Chen City, TW 1 11

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