Display device and luminance compensation method therefor, and computer storage medium

A display device, comprising:

• a display panel, a liquid crystal grating layer located at a side of the display panel, and a luminance compensation module, wherein the display panel comprises a plurality of sub-pixels arranged in an array;
• and
• the luminance compensation module is configured to determine an irregular electric field region of a liquid crystal grating formed by the liquid crystal grating layer in a three-dimensional display mode;
• determine a luminance compensation coefficient of each sub-pixel according to a proportional relation between the sub-pixel and the irregular electric field region;
• and perform luminance compensation on each sub-pixel in the irregular electric field region according to the luminance compensation coefficient, and increase luminance of each sub-pixel in the irregular electric field region.