disclosed herein is a self light emission display device includes a buffer memory configured to delay the supply of pixel data to a self light emission panel , a lookup table configured to store all gradation values corresponding to a variable range of the pixel data and electric power values to be consumed for light emission respectively at the gradation values , in association with each other , and a power consumption calculator configured to add respective power consumption values of all pixels of a frame which are determined by referring to said lookup table to calculate a power consumption value of the frame .