| 摘要 |
[Object] To perform driving control of an electro-optical device by current driving at a high precision and to reduce the number of components. [Solving Means] Along a data line to which pixel circuits 10 are connected between a driving power source Vx and a driver 4a, a conversion transistor 12 formed of a diode-connected transistor is inserted between the driving power source Vx and the pixel circuits 10. The conversion transistor 12 is used in common among the pixel circuits 10. Each pixel circuit is formed of a driving transistor which forms a current mirror circuit with the conversion transistor 12, a control transistor driven by a scanning driver 4, for turning on and off the connection between the conversion transistor 12 and the driving transistor, and a capacitive device for holding a voltage applied to the gate of the driving transistor by the control transistor. The driving transistor causes current corresponding to the voltage held by the capacitive device to flow into an organic electroluminescent device.
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