Method for simultaneously adjusting brightness and contrast...

Details Method for simultaneously adjusting brightness and contrast... Method for simultaneously adjusting brightness and contrast...

2005-02-17

2009-06-02

Nguyen, Chanh (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

Intensity or color driving control

C345S102000

Reexamination Certificate

active

07542057

ABSTRACT:
An apparatus for simultaneously adjusting brightness and contrast of a display includes: a key (1) for receiving a luminance instruction inputted by a user; an SCM (Single Chip Microprocessor) (2) for obtaining a luminance value corresponding to the instruction, and for calculating a brightness value and a contrast value according to the obtained luminance value; an AID (Analog/Digital) converter (3) for converting the brightness value and the contrast value into respective voltage pulse signals; a signal amplifier (4) for adjusting the amplitude sizes of the voltage pulse signals, and outputting the voltage pulse signals as LVDS (Low Voltage Differential Signals); a back light controller (5) for receiving the LVDS, and controlling video output of the adjusted brightness and contrast; a display screen (6) for displaying luminance values and images according to the adjusted brightness and the contrast; and a power source (7). A related method is also disclosed.

REFERENCES:
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patent: 7193597 (2007-03-01), Sunohara
patent: 2002/0024529 (2002-02-01), Miller et al.

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