1. An image displaying method, comprising: receiving original image information of a frame to be displayed; dividing each of raw pixels in a display panel into a plurality of virtual pixels based on a desired image resolution for displaying the frame to be displayed; wherein, each of the virtual pixels comprises part of the sub-pixels in each of the raw pixels; determining virtual image information for each of the virtual pixels when the image of the frame to be displayed is displayed based on weights of the respective sub-pixels in each of the virtual pixels, weights of the respective sub-pixels for compensation in the virtual pixels which are adjacent in rows and the original image information of the frame to be displayed; determining displaying image information required by the respective sub-pixels in each of the raw pixels according to a rule in which a difference between the virtual image information for each of the virtual pixels and the original image information is minimum, based on the determined virtual image information for each of the virtual pixels and the original image information; and performing displaying based on the determined displaying image information required by the respective sub-pixels in each of the raw pixels and the desired image resolution for displaying.