Patent ID: 11940530
Assignee: SHANGHAI TIANMA MICRO-ELECTRONICS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC G  H  Y | IPC G  H

Claim 20:
21. The driving method according to claim 19, wherein the reading circuit comprises:
an eighth transistor comprising a gate electrically connected to the first node, a first terminal electrically connected to a fixed potential signal line, and a gate; and
a ninth transistor comprising a gate electrically connected to the second control signal line, a first terminal electrically connected to a second terminal of the eighth transistor, and a second terminal electrically connected to the reading signal line;
wherein in the initial voltage reading period, said reading, by the reading circuit, the initial voltage of the first node comprises: in the initial voltage reading period, providing, by the second control signal line, the first level; and conducting the ninth transistor under the first level to transmit a signal for feeding back a magnitude of an initial voltage of the first node to the reading signal line; and
wherein in the detection voltage reading period, said reading, by the reading circuit, a detection voltage of the first node comprises: in the detection voltage reading period, locating the eighth transistor in a saturation region under a potential of the first node;
providing, by the second control signal line, the first level; and conducting the ninth transistor under the first level to transmit a signal for feeding back a magnitude of a detection voltage of the first node to the reading signal line.