Drive method and drive device of liquid crystal display

A drive method of a liquid crystal display, wherein the drive method comprises:

• receiving an image to display;
• selecting one color washout compensation mode from several different color washout compensation modes according to the user selection or the display mode, and implementing color washout compensation to the image to display;
• driving the liquid crystal panel to show the image to display after the color washout compensation;
• wherein the method comprises three color washout compensation ways, wherein the first color washout compensation way comprises steps of:
• implementing skin color detection to the image pixels of the image to display to determine nude pixel and non skin color pixel;
• setting different skin color weights for the nude pixel and the non skin color pixel;
• implementing the color washout compensation to the image to display according to the skin color weight;
• the second color washout compensation way comprises steps of:
• implementing high frequency detection to the image pixels of the image to display to determine color differences of the respective image pixels and the adjacent image pixels;
• respectively setting high frequency weights for the respective image pixels according to the color differences;
• implementing the color washout compensation to the image to display according to the high frequency weight;
• the third color washout compensation way comprises steps of:
• implementing block detection to the image pixels of the image to display to determine dimensions of color blocks where the image pixels are;
• respectively setting block weights for the respective image pixels according to the dimensions of the color blocks;
• implementing the color washout compensation to the image to display according to the block weight;
• wherein the several different color washout compensation modes are different color washout compensation ways or combinations of the different color washout compensation ways selected from the three aforesaid color washout compensation ways, or, different settings are implemented to at least one of the skin color weight, the high frequency weight and the block weight.

A drive device of a liquid crystal display, comprising:

• a receiving module, receiving an image to display;
• a color washout compensation module, selecting one color washout compensation mode from several different color washout compensation modes according to the user selection or the display mode, and implementing color washout compensation to the image to display;
• a drive module, driving the liquid crystal panel to show the image to display after the color washout compensation;
• wherein the drive device further comprises a skin color detection module, a high frequency detection module and a block detection module, for respectively achieving three kinds of color washout compensation ways below;
• wherein the skin color detection module is employed for implementing skin color detection to the image pixels of the image to display to determine nude pixel and non skin color pixel, and setting different skin color weights for the nude pixel and the non skin color pixel, wherein the color washout compensation module is further employed for implementing color washout compensation to the image to display according to the skin color weights;
• the high frequency detection module is employed for implementing high frequency detection to the image pixels of the image to display to determine color differences of the respective image pixels and the adjacent image pixels, and respectively setting high frequency weights for the respective image pixels according to the color differences, wherein the color washout compensation module is further employed to implement the color washout compensation according to the high frequency weights;
• the block detection module is employed for implementing block detection to the image pixels of the image to display to determine dimensions of color blocks where the image pixels are, and respectively setting block weights for the respective image pixels according to the dimensions of the color blocks, wherein the color washout compensation module is further employed to implement the color washout compensation according to the block weights;
• the several different color washout compensation modes are different color washout compensation ways or combinations of the different color washout compensation ways selected from the three aforesaid color washout compensation ways, or, different settings are implemented to at least one of the skin color weight, the high frequency weight and the block weight.