| 摘要 |
Provided are a pixel driving circuit, a driving method, an array substrate and a display apparatus. The pixel circuit comprises: a data line, a gate line, a first power line, a second power line, a reference signal line, a light emitting device, a driving transistor, a storage capacitor, a reset unit, a data writing unit, a compensation unit and a light emitting control unit. The pixel driving circuit can compensate and eliminate the display nonuniformity caused by the threshold voltage difference of the driving transistors. |
| 主权项 |
1. A pixel driving circuit, comprising: a data line, a gate line, a first power line, a second power line, a reference signal line, a light emitting device, a driving transistor, a storage capacitor, a reset unit, a data writing unit, a compensation unit and a light emitting control unit; wherein
the data line is configured to provide a data voltage; the gate line is configured to provide a scanning voltage; the first power line is configured to provide a first power voltage, the second power line is configured to provide a second power voltage, and the reference signal line is configured to provide a reference voltage; the reset unit is connected with the storage capacitor, and the reset unit is configured to reset the voltage across the storage capacitor to a predetermined signal voltage; the data writing unit is connected with the gate line, the data line and a second terminal of the storage capacitor, and the data writing unit is configured to write information comprising the data voltage to the second terminal of the storage capacitor, the compensation unit is connected with a first terminal of the storage capacitor and the driving transistor, and the compensation unit is configured to write information comprising the threshold voltage of the driving transistor and the first power voltage to the first terminal of the storage capacitor; the light emitting control unit is connected with the reference signal line, the second terminal of the storage capacitor, the driving transistor and the light emitting device, and the light emitting control unit is configured to write the reference voltage to the second terminal of the storage capacitor; the first terminal of the storage capacitor is connected with a gate of the driving transistor, and the storage capacitor is configured to transfer information comprising the data voltage to the gate of the driving transistor; the driving transistor is connected with the first power line, the light emitting device is connected with the second power line, and the driving transistor is configured to drive the light emitting device to emit light. |
