Touch display circuit and touch display device
Disclosed are a touch display circuit and a touch display device. The touch display circuit includes a touch circuit and a light-emitting element set. The touch circuit includes a first touch electrode and corresponding plurality of second touch electrodes. The first touch electrode receives an emitting signal. The plurality of second touch electrodes respectively generate a plurality of sensing signals. A first end of the light-emitting element set is directly coupled to the first touch electrode and receives the emitting signal as a first driving signal. A second end of the light-emitting element set receives a second driving signal. As such, the touch display circuit is able to drive the touch circuit and the light-emitting element set simultaneously to simplify the circuit design.
1. A touch display circuit, comprising:
a touch circuit comprising a first touch electrode and corresponding plurality of second touch electrodes, wherein the first touch electrode receives an emitting signal, the plurality of second touch electrodes respectively generate a plurality of sensing signals; and
a first light-emitting element set having a first end directly coupled to the first touch electrode and receiving the emitting signal as a first driving signal, wherein a second end of the first light-emitting element set receives at least one second driving signal,
wherein the first light-emitting element set comprises a plurality of light-emitting diodes, and the plurality of light-emitting diodes are configured to emit light of different wavelengths, wherein the at least one second driving signal comprises a plurality of first sub-driving signals, wherein a plurality of first ends of the plurality of light-emitting diodes are directly coupled to the first touch electrode, and a plurality of second ends of the plurality of light-emitting diodes receive the plurality of first sub-driving signals respectively,
wherein the touch display circuit further comprises a plurality of switches respectively coupled between the plurality of second ends of the plurality of light-emitting diodes and the plurality of first sub-driving signals to be controlled by a plurality of control signals.
2. The touch display circuit according to claim 1 , wherein in each of a plurality of frame periods, the at least one second driving signal is a set voltage in a first set time interval, and the first driving signal is a pulse signal.
3. The touch display circuit according to claim 2 , wherein an enabled period of the pulse signal is related to an operation period of the first touch electrode and a grayscale data of the first light-emitting element set.
4. The touch display circuit according to claim 1 , wherein in each of a plurality of frame periods, the first driving signal is a pulse signal in a second set time interval, and the at least one second driving signal is a set voltage in at least one partial interval in the second set time interval.
5. The touch display circuit according to claim 4 , wherein the at least one partial interval is associated with a grayscale data of the first light-emitting element set.
6. The touch display circuit according to claim 1 , wherein the at least one second driving signal further comprises a plurality of second sub-driving signals, wherein the touch display circuit further comprises:
a second light-emitting element set having a plurality of first ends directly coupled to the first touch electrode and receiving the first driving signal, wherein a plurality of second ends of the second light-emitting element set receive the plurality of second sub-driving signals respectively.
7. A touch display device, comprising:
a display panel having a pixel array; and
the touch display circuit according to claim 1 , coupled to the pixel array.
8. The touch display device according to claim 7 , wherein the first light-emitting element set is disposed on at least one lateral side of the display panel.
9. The touch display device according to claim 7 , wherein the display panel comprises a plurality of sub-display panels spliced to each other, wherein the first light-emitting element set is disposed between the plurality of sub-display panels.