Patent ID: 11967278
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 6:
7. The display substrate according to claim 6, wherein the pixel unit comprises a pixel circuit and a light emitting device, the pixel circuit comprising: a first reset sub-circuit, a second reset sub-circuit, a data writing sub-circuit, a threshold compensation sub-circuit, a light emitting control sub-circuit, and a driving transistor;
the first reset sub-circuit is coupled to an initialization voltage terminal, a control electrode of the driving transistor and a corresponding scanning control signal line, and is configured to write an initialization voltage provided by the initialization voltage terminal to the control electrode of the driving transistor in response to the control of a scanning control signal provided by the scanning control signal line;
the second reset sub-circuit is coupled to the initialization voltage terminal, a first terminal of the light emitting device and a corresponding reset signal line, and is configured to write the initialization voltage to the first terminal of the light emitting device in response to the control of the reset signal line;
the data writing sub-circuit is coupled to a first electrode of the driving transistor, a corresponding data line and a corresponding scanning signal line, and is configured to write a data voltage provided by the data line to the first electrode of the driving transistor in response to the control of the scanning signal line;
the threshold compensation sub-circuit is coupled to a second operating voltage terminal, the control electrode of the driving transistor, the first electrode of the driving transistor, a second electrode of the driving transistor and the corresponding scanning signal line, and is configured to write a data compensation voltage, which is equal to a sum of the data voltage and a threshold voltage of the driving transistor, to the control electrode of the driving transistor in response to the control of the scanning signal line;
the light emitting control sub-circuit is between the second electrode of the driving transistor and the first terminal of the light emitting device, is coupled to the light emitting control signal line, and is configured to enable a conduction between the second electrode of the driving transistor and the first terminal of the light emitting device in response to the control of the light emitting control signal provided by the light emitting control signal line;
the driving transistor is configured to output a corresponding driving current in response to the control of the data compensation voltage; and
a second terminal of the light emitting device is coupled to a first operating voltage terminal.