Patent ID: 11953774
Assignee: BEIJING BOE DISPLAY TECHNOLOGY CO., LTD.
Field: Optics (Instruments)
Classification: CPC G  H | IPC G  H

Claim 5:
6. The display substrate according to claim 5, wherein the drive circuit comprises:
a second transistor, a third transistor and a fourth transistor arranged on a layer same as a layer where the first transistor is located;
wherein a gate electrode of the second transistor is electrically connected to a second gate line, a first electrode of the second transistor is electrically connected to a first power line, and a second electrode of the second transistor is electrically connected to the photosensor;
a gate electrode of the third transistor is electrically connected to the photosensor, a first electrode of the third transistor is electrically connected to a second power line, and a second electrode of the third transistor is electrically connected to a first electrode of the fourth transistor; and
a gate electrode of the fourth transistor is electrically connected to a third gate line, and a second electrode of the fourth transistors is electrically connected to a reading line.