Patent ID: 11862100
Assignee: SAMSUNG ELECTRONICS CO., LTD.
Field: Audio-visual technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 15:
16. A display device, comprising:
a plurality of pixels, each of which includes a light emitting element and a pixel driving circuit connected to the light emitting element and configured to drive the light emitting element;
a scan driving circuit configured to drive a plurality of scan lines including a j-th scan line and an a-th scan line,
wherein the j-th scan line and the a-th scan line are connected to the scan driving circuit; and
a plurality of sensors, each of which includes a light sensing element and a sensor driving circuit connected to the light sensing element and configured to output a detection signal corresponding to external light,
wherein pixels in a j-th row among the plurality of pixels are connected to the j-th scan line among the plurality of scan lines,
wherein pixels in an a-th row among the plurality of pixels are connected to the a-th scan line among the plurality of scan lines,
wherein j is a positive integer,
wherein the sensor driving circuit of a sensor, which corresponds to the pixels in the j-th row, from among the plurality of sensors comprises:
a reset transistor including a first electrode that receives a reset voltage, a second electrode connected to a first sensing node, and a gate electrode that receives a reset signal;
an amplification transistor including a first electrode that receives a driving voltage, a second electrode connected to a second sensing node, and a gate electrode connected to the first sensing node; and
an output transistor including a first electrode connected to the second sensing node, a second electrode connected to a readout line, and a gate electrode connected to the a-th scan line among the plurality of scan lines,
wherein a is a positive integer different from j,
wherein the scan driving circuit provides a j-th scan signal to the pixels in the j-th row among the plurality of pixels through the j-th scan line among the plurality of scan lines, provides an a-th scan signal to sensors, which correspond to the pixels in the j-th row, from among the plurality of sensors through the a-th scan line among the plurality of scan lines, and provides the a-th scan signal to the pixels in the a-th row among the plurality of pixels through the a-th scan line among the plurality of scan lines.