Patent ID: 8421925

Claim:
A display device, comprising: a video signal receiver, for receiving video signals; a scaling engine, coupled to the video signal receiver, for modulating a resolution of an image frame of the video signals; a color engine, coupled to the scaling engine, comprising a local adjusting unit, for dividing pixels of the image frame of the video signals into multiple pixel groups according to color hue of the pixels in a HSI color space, in which H represents hue; S represents saturation; and I represents intensity, and adjusting color hue of a specific pixel group of the pixel groups having color hue in a predetermined range that is a part of a full range of color hue by moving the pixels of the specific pixel group from a region to another region of the HSI color space without changing color axes of the HSI color space, so as to locally adjust the color hue of the pixels of the specific pixel group under the HSI color space without moving any other pixel groups other than the specific pixel group of the whole image frame under the HSI color space; an output stage, coupled to the color engine, for outputting the adjusted video signals; and a panel, coupled to the output stage, for displaying the adjusted video signals.