The present disclosure relates to a light guide plate and a fabricating method thereof, an array substrate and a fabricating method thereof, and a display device. In the light guide plate provided in the present disclosure, in a region corresponding to a first display region for arranging a gate driven circuit, more net-dots are provided or the diameter of net-dots is set to be larger, such that the luminance of outgoing light from the light guide plate in this region can be increased, thereby weakening the luminance difference between the corresponding display region and other display region.