Patent ID: 7154454

Claim:
A spontaneous light emitting display device with a driving circuit comprising: a selection line for selecting a pixel over which a luminance control is to be carried out, a luminance data line for supplying a voltage corresponding to a luminance, a first transistor made conducting or non-conducting in response to a signal of the selection line, first and second capacitors for holding a voltage from the luminance data line, a spontaneous light emitting element, a second transistor including a gate and a drain, the second transistor for controlling current supplied to the spontaneous light emitting element, a third transistor for connecting or blocking the gate and the drain of the second transistor, a first control signal line for supplying a signal voltage to control the third transistor to conduct or not to conduct, a fourth transistor for connecting or blocking the spontaneous light emitting element and the second transistor, a second control signal line for supplying a signal voltage to make the fourth transistor conduct or not conduct, a voltage supply line for supplying a voltage to the spontaneous light emitting element, and a switching element connected in parallel with the spontaneous light emitting element for short-circuiting the spontaneous light emitting element.