Display device including first driver operating at first operating frequency and second driver operating at second or third operating frequency
A display device includes: a pixel, a sensor, a first driver, and a second driver. The pixel includes a pixel driving circuit and a light emitting element. The sensor includes a sensor driving circuit and a sensing element. The first driver outputs a first scan signal to the pixel driving circuit, and the second driver outputs a second scan signal to the sensor driving circuit. The first driver is to operate at a first operating frequency, and the second driver is to operate at a second operating frequency or a third operating frequency.
1. An electronic device comprising a display device comprising:
a pixel comprising a pixel driving circuit and a light emitting element;
a sensor comprising a sensor driving circuit and a sensing element;
a first driver configured to output a first scan signal to the pixel driving circuit; and
a second driver configured to output a second scan signal to the sensor driving circuit,
wherein the first driver is configured to operate at a first operating frequency, and the second driver is configured to operate at a second operating frequency or a third operating frequency.
2. The electronic device of claim 1 , wherein the first driver comprises a plurality of first driving stages,
wherein the second driver comprises a plurality of second driving stages and a plurality of switch circuits, and
wherein each of the plurality of switch circuits is configured to control delivery of a first clock signal of the second operating frequency or a second clock signal of the third operating frequency.
3. The electronic device of claim 2 , wherein each of the plurality of switch circuits comprises:
a first switch connected to a first clock line to be provided with the first clock signal, and configured to be controlled by a first enable signal; and
a second switch connected to a second clock line to be provided with the second clock signal, and configured to be controlled by a second enable signal.
4. The electronic device of claim 3 , wherein, in a first sensing mode for sensing a fingerprint, the first enable signal is activated, and the second enable signal is deactivated, and
wherein, in a second sensing mode for sensing an external input, the first enable signal is deactivated, and the second enable signal is activated.
5. The electronic device of claim 4 , wherein the number of the plurality of second driving stages is greater than the number of the plurality of switch circuits.
6. The electronic device of claim 4 , wherein the plurality of second driving stages are sequentially located along a first direction,
wherein the plurality of switch circuits comprises:
a first switch circuit connected to an X-th second driving stage from among the plurality of second driving stages;
a second switch circuit connected to an (X+N)-th second driving stage from among the plurality of second driving stages; and
a third switch circuit connected to an (X+2N)-th second driving stage from among the plurality of second driving stages, and wherein X is a constant, and N is a constant.
7. The electronic device of claim 4 , wherein the number of the plurality of second driving stages is equal to the number of the plurality of switch circuits, and
wherein the plurality of second driving stages are connected to the plurality of switch circuits, respectively.
8. The electronic device of claim 7 , wherein, in the second sensing mode, the first enable signal is deactivated, and the second enable signal is activated during a section during which (X+(y*N))-th second driving stages from among the plurality of second driving stages are to operate, and
wherein X is a constant, N is a constant, and y is an integer greater than or equal to 0.
9. The electronic device of claim 1 , wherein the first driver comprises a plurality of first driving stages,
wherein the second driver comprises a plurality of second driving stages, and
wherein the plurality of second driving stages comprises:
a plurality of first sensing driving stages configured to receive a first clock signal of the second operating frequency; and
a plurality of second sensing driving stages configured to receive a second clock signal of which a frequency is changed to the second operating frequency or the third operating frequency.
10. The electronic device of claim 9 , wherein at least one first sensing driving stage from among the plurality of first sensing driving stages is located between two second sensing driving stages closest to each other from among the plurality of second sensing driving stages.
11. The electronic device of claim 9 , wherein the number of the plurality of first sensing driving stages is greater than the number of the plurality of second sensing driving stages.
12. The electronic device of claim 1 , wherein the first driver comprises a plurality of first driving stages,
wherein the second driver comprises a plurality of second driving stages, and
wherein each of the plurality of second driving stages is configured to receive a clock signal of which a frequency is changed to the second operating frequency or the third operating frequency.
13. The electronic device of claim 1 , wherein the first driver comprises a plurality of first driving stages,
wherein the second driver comprises a plurality of second driving stages, and a plurality of switch circuits respectively connected to the plurality of second driving stages, and
wherein the plurality of switch circuits are configured to selectively output one of the first scan signal output from the plurality of first driving stages or the second scan signal output from the plurality of second driving stages.
14. The electronic device of claim 13 , wherein the number of the plurality of first driving stages is greater than the number of the plurality of second driving stages.
15. The electronic device of claim 13 , wherein the number of the plurality of first driving stages is equal to the number of the plurality of second driving stages.
16. The electronic device of claim 13 , wherein, in a first sensing mode for sensing a fingerprint, the plurality of switch circuits are configured to deliver the first scan signal output from the plurality of first driving stages, and
wherein, in a second sensing mode for sensing an external input, the plurality of switch circuits are configured to deliver the second scan signal output from the plurality of second driving stages.
17. The electronic device of claim 13 , wherein, in a first sensing mode for sensing a fingerprint, the plurality of switch circuits are configured to deliver the first scan signal output from the plurality of first driving stages, and
wherein, in a second sensing mode for sensing an external input, the plurality of switch circuits are configured to deliver the second scan signal output from some second driving stages from among the plurality of second driving stages.
18. The electronic device of claim 1 , wherein the first driver comprises a plurality of first driving stages,
wherein the second driver comprises a plurality of second driving stages,
wherein the plurality of first driving stages are spaced from one another along a first direction, and the plurality of second driving stages are spaced from one another along the first direction, and
wherein the first driver and the second driver are spaced from each other in a second direction crossing the first direction.
19. The electronic device of claim 1 , wherein the first driver comprises a plurality of first driving stages,
wherein the second driver comprises a plurality of second driving stages,
wherein the plurality of first driving stages are spaced from one another in a first direction, and the plurality of second driving stages are spaced from one another in the first direction, and
wherein the plurality of second driving stages are respectively located in a plurality of spaces defined between the plurality of first driving stages.