Method and Apparatus of Color Adjustment for a Display Device

A color adjustment device for a display device, the color adjustment device comprising:

• a receiving terminal for receiving a composite video signal including a first chrominance signal and a first luminance signal;
• a signal generation unit coupled to the receiving terminal for generating a hue signal and a saturation signal according to at least the first chrominance signal;
• an intensity mapping unit coupled to the signal generation unit for generating an intensity gain parameter according to the hue signal and the saturation signal;
• a saturation mapping unit coupled to the signal generation unit for generating a saturation gain parameter according to the hue signal;
• a hue mapping unit coupled to the signal generation unit for generating a hue deviation parameter according to the hue signal;
• a luminance adjustment unit coupled to the receiving terminal and the intensity mapping unit for adjusting the first luminance signal according to the intensity gain parameter, for generating a second luminance signal;
• and
• a chrominance adjustment unit coupled to the receiving terminal, the saturation mapping unit and the hue mapping unit for adjusting the first chrominance signal according to the hue deviation parameter and a mixed parameter generated according to the saturation gain parameter, for generating a second chrominance signal.