Pixel circuit, electro-optical device, and electronic apparatus

摘要

To accurately display a predetermined gray level. A first transistor T 1 and a second transistor T 2 are arranged in a first path 501 from a power line 41 to a constant-current circuit 301. A driving transistor Tdr and a current supply transistor Tc are arranged in a second path 502 from the power line 41 to an OLED element 51. A capacitor C 1 connected to the gate of the driving transistor and a capacitor C 2 connected to the gate of the current supply transistor Tc hold a voltage corresponding to a data current Idata-j flowing in the first path 501. The driving transistor Tdr controls a driving current flowing in the second path 502 in accordance with the voltage held in the capacitor C 1 . The current supply transistor Tc controls the driving current flowing in the second path 502 in accordance with the voltage held in the capacitor C 2.