Patent ID: 8508556

Claim:
An image display method adapted to a display apparatus comprising a display panel and a backlight module, comprising: analyzing a brightness distribution of an original image to generate an image brightness value; generating an external brightness value according to an intensity value of an external light around the display panel; setting a backlight adjustment factor according to the external brightness value, the image brightness value, and a maximum brightness value; analyzing the image brightness value to set a reference turning point of a brightness conversion coordinate according to an analysis result, wherein the reference turning point is related to the backlight adjustment factor (back_dim) and the maximum brightness value; setting a plurality of relative turning points of the brightness conversion coordinate according to the analysis result, the reference turning point, and a plurality of predetermined slopes; sequentially connecting the reference turning point and the relative turning points with an origin of the brightness conversion coordinate as a starting point, so as to form a brightness conversion curve; correcting a plurality of brightness factors corresponding to a plurality of original gray scale values in the original image according to the brightness conversion curve, and generating a plurality of corresponding corrected gray scale values according to the corrected brightness factors; and resetting the original image by using the connected gray scale values, and adjusting a backlight of the backlight module for displaying the original image by using the backlight adjustment factor.