Patent ID: 7102600

Claim:
An electronic device, comprising: a wiring line; a plurality of unit circuits connected to the wiring line; a first transistor connected to the wiring line, of which a gate voltage is specified according to the amount of current flowing through the wiring line; and a resistor which is connected one of (a) between a gate electrode and a drain end of the first transistor or (b) between a drain end of the first transistor and a driving power source, each unit circuit including a second transistor having a “p” conductivity type, that forms a current mirror with the first transistor, and the second transistor connected to an electroluminescent device, wherein a unit circuit for emitting one of red, green or blue light is connected to a wiring line and a first transistor for a single color in order that as a gain coefficient of the single color unit circuit is adjusted, light emitted from a color electroluminescent device of the unit circuit is separately adjusted for each color.