A display apparatus including a display panel and a display driver is provided. The display panel includes a sub-pixel repeat array. The sub-pixel repeat array is repeatedly arranged to form a pixel array on the display panel. The pixel array includes at least one map display unit. The display driver is coupled to the display panel. The display driver drives the display panel to display an image by using a sub-pixel rendering method. The image includes at least one specified intensity map. The map display unit includes a center sub-pixel unit and a plurality of neighboring sub-pixel units. The specified intensity map includes one or more white pixel points. In the map display unit, luminance summations of sub-pixels of different colors are equal. Furthermore, a display driving method is also provided.