Patent ID: 8471790

Claim:
A display device including a display unit having pixels, each of which includes a luminescence element that individually becomes luminous depending on a current amount and a pixel circuit for controlling a current applied to the luminescence element according to a voltage signal, scan lines which supply a selection signal for selecting pixels to be luminous to the pixels in a predetermined scanning cycle, and data lines which supply to the pixels the voltage signal according to an input picture signal, the pixels, the scan lines, and the data lines arranged in a matrix pattern, the display device comprising: an average luminance calculator for calculating average luminance for a predetermined period of the input picture signal; and a luminous time setter for setting an effective duty depending on the calculated average luminance by the average luminance calculator, the effective duty regulating for each one frame a luminous time for which the luminescence element is luminous, wherein the luminous time setter sets the effective duty such that a luminescence amount regulated by a preset reference duty and possible maximum luminance of the picture signal equals to a luminescence amount regulated by the set effective duty and the average luminance.