Pixel mapping method for liquid crystal panel and backlight module

The invention discloses a pixel mapping method for a liquid crystal panel and a backlight module, and belongs to the technical field of liquid crystal display. The pixel mapping method comprises the following steps: determining the number of pixels in a row of an image to be displayed, the number of pixels in a column of the image to be displayed, and the number of transverse backlight partitions and the number of longitudinal backlight partitions of a backlight module; judging whether the sum result is an integer or not, and executing respectively; rounding the result or the result to obtain or; calculating the number of row pixels which are not mapped to the backlight partition in each row in the to-be-displayed image; or calculating the number of column pixels which are not mapped to the backlight partition in each column in the to-be-displayed image; calculating the number of periods of transverse backlight partitions or the number of periods of longitudinal backlight partitions in ...