Patent ID: 9640109
Date: 2017-05-02
CPC Classifications: G09G

Claim:
1. A pixel driving circuit for driving a first light-emitting element and a second light-emitting element, first ends of the first light-emitting element and the second light-emitting element being configured to receive a first level, wherein the pixel driving circuit comprises a first pixel driving unit and a second pixel driving unit, wherein the first pixel driving unit comprises a first driving transistor, a first storage capacitor and a first driving control unit; a first end of the first storage capacitor is connected to a gate electrode of the first driving transistor, and a second end of the first storage capacitor is configured to receive a data voltage through the first driving control unit; the gate electrode of the first driving transistor is connected to a first electrode of the first driving transistor through the first driving control unit, the first electrode of the first driving transistor is configured to receive a second level through the first driving control unit, and a second electrode of the first driving transistor is configured to receive the first level through the first driving control unit, the second electrode of the first driving transistor is further connected to a second end of the first light-emitting element; and the first driving control unit is configured to charge and discharge the first storage capacitor through the second level, the data voltage and the first level, so as to apply a jumping voltage onto the data voltage at a first compensation stage, thereby to perform jumping compensation on a threshold voltage of the first driving transistor and control the first light-emitting element to emit light; and wherein the second pixel driving unit comprises a second driving transistor, a second storage capacitor and a second driving control unit; a first end of the second storage capacitor is connected to a gate electrode of the second driving transistor, and a second end of the second storage capacitor is configured to receive the data voltage through the first driving control unit; the gate electrode of the second driving transistor is connected to a first electrode of the second driving transistor through the second driving control unit, the first electrode of the second driving transistor is configured to receive the second level through the second driving control unit, and a second electrode of the second driving transistor is configured to receive the first level through the second driving control unit, and the second electrode of the second driving transistor is further connected to a second end of the second light-emitting element; and the second driving control unit is configured to charge and discharge the second storage capacitor through the second level, the data voltage and the first level, so as to apply a jumping voltage onto the data voltage at a second compensation stage, thereby to perform jumping compensation on a threshold voltage of the second driving transistor and control the second light-emitting element to emit light.