To decrease ununiformity of the light emitting intensity of a light emitting element, specially, of an organic EL element, and to improve the quality of image by connecting in series each of thin film transistors and light emitting elements and making the light emitting intensity of light emitting elements respectively different from each other.

Pulses are outputted from a shift resistor 101 and digital signals of digital signals supply lines 10210-10213 of Nos.1-3 bits are transmitted to source lines 10410-10413 of Nos.1-3 bits. Current transistors 10710-10713 which are the thin film transistors and the organic EL elements 10810-10813, which are current elements are each connected in series. Then, ON-OFF control of the current transistors 10710-10713 of Nos.0-3 bits is made by digital signals, and the organic EL elements 10810-10813 of Nos.0-3 bits become light emitting or non light emitting corresponding to the digital signals. In this case, areas of organic EL elements 10810-10813 bits are different with each other, so the light emitting intensity differs from each other and an area gradation system is made possible.