DRIVE METHOD AND DRIVE DEVICE OF LIQUID CRYSTAL DISPLAY

摘要

The present invention provides a drive method and a drive device of a liquid crystal display, and the drive method comprises: receiving an image to display; 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; implementing the color washout compensation to the image to display according to the high frequency weight; driving the liquid crystal panel to show the image to display after the color washout compensation. With the aforesaid arrangement, the present invention can reduce the color washout under large view angle to promote the display effect of the large view angle.

主权项

1. A drive method of a liquid crystal display, wherein the drive method comprises:
receiving an image to display; 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, wherein the step of implementing high frequency detection to the image pixels of the image to display comprises: calculating absolute differences of the original gray scale values of the respective primary color components of the respective image pixels and the adjacent image pixels, and summing the absolute differences to acquire different gray scale sum values for different adjacent image pixels; selecting the maximum gray scale sum value in the gray scale sum values to represent the color difference. 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, wherein the step of implementing color washout compensation to the image to display according to the high frequency weight comprises: employing the original gray scale values of the respective primary color components of the respective image pixels of the image to display to respectively generate the first display gray scale value and the second display gray scale value, wherein the first display gray scale value and the second display gray scale value are employed to respectively control display brightnesses of two display pixels of the same color on the liquid crystal panel, and the first display gray scale value is larger than the second display gray scale value, wherein the high frequency weights are employed to set the ratio of the first display gray scale value and the second display gray scale value, to make that the ratio of the first display gray scale value and the second display gray scale value is smaller as the color difference is larger; driving the liquid crystal panel to show the image to display after the color washout compensation.