The invention relates to a simulated large display screen used in washer, especially providing two kinds of simulate display screen used in washer screen and relative operation method. Wherein, said display screen comprises a magnetic mirror and a computer plate (working layer). The inventive display screen has better display effect, which can replace liquid crystal display screen to combine the display and operation button, and can display the data of water level, program, washing, poaching, dewatering, and left time; the display and the operation button are in one screen; the invention can support people to operate according to the screen, to complete whole washing process.