Patent ID: 11935483
Assignee: BOE TECHNOLOGY GROUP CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. A pixel circuit, comprising: a plurality of sub-pixel circuits arranged in an array; each of the plurality of sub-pixel circuits comprises a first node control sub-circuit, a second node control sub-circuit, a driving sub-circuit, a storage sub-circuit, a reading sub-circuit and a light emitting device; wherein at least reading sub-circuits of the sub-pixel circuits of a portion of rows are controlled by a same sensing control line;
the first node control sub-circuit is configured to charge the storage sub-circuit in response to a first scan signal;
the second node control sub-circuit is configured to write a reference voltage signal into a second node in response to a second scan signal;
the reading sub-circuit is configured to read a potential of the second node in response to a sensing control signal written by a sensing control line; and
the driving sub-circuit is configured to drive the light emitting device to emit light in response to voltage signals of the first node and the second node;
wherein the reading sub-circuit comprises a fourth transistor, a first electrode of the fourth transistor is coupled to a reading line, a second electrode of the fourth transistor is coupled to the second node, and a control electrode of the fourth transistor is coupled to the sensing control line.