Patent ID: 8169385

Claim:
An image display device having a plurality of pixel circuits arranged in a matrix form, each of the pixel circuits comprising: a current-driven type light-emitting element; a driver transistor for supplying an electric current to the current-driven type light-emitting element; a holding capacitor for holding a voltage that determines an amount of the electric current supplied from the driver transistor; and a writing switch for writing a voltage corresponding to an image signal into the holding capacitor, wherein the transistor formed in each of the pixel circuits is an N-channel transistor, each of the pixel circuits further comprises an enable switch disposed in a current path supplying the electric current to the current-driven type light-emitting element and a supplementary capacitor for controlling changes in voltage of a terminal of the holding capacitor at one end opposite another terminal connected with the writing switch, the current-driven type light-emitting element is connected between a source of the driver transistor and a low-voltage side power line, the enable switch is connected between a drain of the driver transistor and a high-voltage side power line, and the supplementary capacitor is connected between the drain of the driver transistor and a predetermined power line.