Patent ID: 11955078
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G  H | IPC G  H

Claim 29:
30. A display device comprising:
a base layer;
a circuit layer on the base layer and including a pixel driving circuit and a sensor driving circuit; and
an element layer on the circuit layer and including a light emitting element connected with the pixel driving circuit and a light sensing element connected with the sensor driving circuit,
wherein the sensor driving circuit includes:
a reset transistor including a first electrode configured to receive a reset signal, a second electrode connected with a first sensing node, and a third electrode configured to receive a reset control signal;
an amplification transistor including a first electrode configured to receive a sensing driving voltage, a second electrode connected with a second sensing node, and a third electrode connected with the first sensing node; and
an output transistor including a first electrode connected with the second sensing node, a second electrode connected with a sensing line, and a third electrode configured to receive an output control signal,
wherein the reset transistor is an oxide semiconductor transistor.