Patent ID: 7012586

Claim:
An image display device comprising: an image display portion in which a plurality of pixels are arranged in a matrix; a plurality of signal lines wired in said image display portion to carry a voltage signal to said pixels; and a drive circuit to control voltage on each said signal line, wherein each said pixel comprises a light emitting element and a pixel circuit which controls the intensity of light emission of said light emitting element, the image display device is equipped with a pixel circuit voltage detecting circuit for placing the pixel circuit included in each said pixel in at least one of a disconnection state from said signal line, a connection state to said signal line, and resistive connection state wherein said pixel circuit connects to said signal line with a sufficiently higher value of resistance than in said connection state, and the image display device is equipped with a voltage addition means to add the voltage on said signal line and a signal voltage corresponding to image data to be displayed and output a sum voltage to said signal line again.