| 摘要 |
A pixel circuit has a light emitting diode, a driving transistor, a capacitor, and a first switch. The light emitting diode had a first end to receive a first supply voltage. The driving transistor has a source and drain respectively receiving a second supply voltage and coupled to a second end of the light emitting diode. The capacitor has a first end coupled to a gate of the driving transistor and a second end receiving a reference voltage. The first switch is controlled by a first scan signal to couple the source of the driving transistor to the second end of the capacitor. The pixel circuit operates in a pre-charge period, a programming period, and an emission period sequentially, and the first scan signal is asserted to turn on the first switch during the pre-charge and emission periods.
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