Patent ID: 11935470
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 12:
13. A display device, comprising a plurality of sub-pixels arranged in an array, wherein each sub-pixel comprises a pixel circuit and a light-emitting element,
the pixel circuit comprises a driving sub-circuit, a data writing sub-circuit, a first light-emitting control sub-circuit, a second light-emitting control sub-circuit, a compensation sub-circuit, and a first reset sub-circuit, and is configured to generate a driving current to control the light-emitting element to emit light,
the driving sub-circuit comprises a control terminal, a first terminal, and a second terminal;
the data writing sub-circuit is electrically connected to the first terminal of the driving sub-circuit and a data signal terminal, and is configured to write a data signal of the data signal terminal into the first terminal of the driving sub-circuit in response to a signal of a first scan signal terminal;
the compensation sub-circuit is electrically connected to the second terminal of the driving sub-circuit and the control terminal of the driving sub-circuit, and is configured to perform threshold compensation on the driving sub-circuit in response to a signal of a compensation control signal terminal;
the first light-emitting control sub-circuit is electrically connected to the first terminal of the driving sub-circuit and a first voltage terminal, and is configured to achieve a connection between the driving sub-circuit and the first voltage terminal to be turned on or off in response to a signal of a light-emitting signal control terminal;
the second light-emitting control sub-circuit is electrically connected to the second terminal of the driving sub-circuit and a first electrode of the light-emitting element, and is configured to achieve a connection between the driving sub-circuit and the light-emitting element to be turned on or off in response to the signal of the light-emitting signal control terminal; and
the first reset sub-circuit is electrically connected to the second terminal of the driving sub-circuit and a second voltage terminal, and is configured to write a signal of the second voltage terminal into the second terminal of the driving sub-circuit in response to a signal of a second scan signal terminal;
wherein the first reset sub-circuit comprises a first transistor, the compensation sub-circuit comprises a second transistor, the first transistor and the second transistor are both oxide transistors, and an active layer type of the second transistor is different from an active layer type of a transistor comprised in at least one selected from a group consisting of the driving sub-circuit, the data writing sub-circuit, the first light-emitting control sub-circuit, and the second light-emitting control sub-circuit;
wherein the signal of the light-emitting signal control terminal is a pulse width modulation signal, and the compensation control signal terminal and the light-emitting signal control terminal are connected to an identical signal line.