The disclosure provides an electronic device and a display method thereof. The electronic device includes a display panel and a light source module. The light source module is disposed at a side of the display panel. The light source module includes a first group of light-emitting units and a second group of light-emitting units that are alternately arranged, wherein the first group of light-emitting units and the second group of light-emitting units emit a light alternately, and each of a plurality of display pixels is adapted to alternately receive the light from the first group of light-emitting units and the second group of light-emitting units.