In an organic EL display device, a power loss of a driver transistor is suppressed and heating and power consumption of the display device is reduced. A plurality of R pixels is provided with a first power supply circuit, a plurality of G pixels is provided with a second power supply circuit and a plurality of B pixels is provided with a third power supply circuit. The first power supply circuit generates a voltage PVDD-R and a voltage CV-R. The second power supply circuit generates a voltage PVDD-G and a voltage CV-G. Also the third power supply circuit generates a voltage PVDD-B and a voltage CV-B. Each of the voltages generated by the power supply circuits is independently controlled by a micro processing unit in order for the white balance adjustment.