The present disclosure provides a method capable of switching display modes with a display screen having a plurality of pixels. The method includes: providing a selection interface on the display, wherein the selection interface provides a first display setting and a second display setting; determining whether the first display setting or the second display setting is selected, wherein when the first display setting is selected, the controller controls to display an image content with the plurality of pixels of the display; when the second display setting is selected, the plurality of pixels of the display are merged into a plurality of merges Pixel group to display image content.