Touch display device and operation method thereof
The invention provides a touch display device and an operation method for the touch display device. The touch display device includes an integrated control circuit and a touch driver. The integrated control circuit is coupled to the touch driver. The integrated control circuit outputs a first synchronization signal to the touch driver. The touch driver outputs a touch mode signal to the integrated control circuit, so that the integrated control circuit generates a synchronization enabling signal to the touch driver according to the touch mode signal.
1. A touch display device, comprising:
an integrated control circuit; and
a touch driver, coupled to the integrated control circuit;
wherein the integrated control circuit outputs a first synchronization signal to the touch driver, and the touch driver outputs a touch mode signal to the integrated control circuit, so that the integrated control circuit generates a synchronization enabling signal to the touch driver according to the touch mode signal.
2. The touch display device according to claim 1 , wherein the integrated control circuit outputs a source output enabling signal to a display panel, and the first synchronization signal is synchronized with the source output enabling signal.
3. The touch display device according to claim 1 , wherein the touch driver is coupled to a touch panel, wherein the touch driver controls whether the touch panel follows the first synchronization signal to perform touch sensing according to the synchronization enabling signal.
4. The touch display device according to claim 3 , wherein the synchronization enabling signal is at a first voltage level, and the touch panel follows the first synchronization signal to perform touch sensing.
5. The touch display device according to claim 4 , wherein the touch driver determines that a sensing period of the touch panel is synchronized with a screen idling period of the display panel updating a screen according to the first synchronization signal.
6. The touch display device according to claim 5 , wherein the synchronization enabling signal is at a second voltage level, the touch panel does not follow the first synchronization signal to perform touch sensing, and the sensing period of the touch panel is not synchronized with the screen idling period of the display panel.
7. The touch display device according to claim 4 , wherein when a stylus performs a general operation, the synchronization enabling signal is at the first voltage level.
8. The touch display device according to claim 1 , wherein the integrated control circuit comprises:
a host control circuit, coupled to the touch driver; and
a timing controller (TCON), coupled to the host control circuit and the display panel, and outputting the first synchronization signal to the touch driver and the display panel;
wherein the host control circuit generates a writing enabling signal to the TCON according to the touch mode signal, the TCON generates the first synchronization signal according to the writing enabling signal, and the host control circuit or the TCON outputs the synchronization enabling signal to the touch driver.
9. The touch display device according to claim 8 , wherein when the host control circuit determines that the writing enabling signal is at a third voltage level, the host control circuit outputs the synchronization enabling signal having a first voltage level.
10. An operation method of a touch display device, comprising:
outputting a first synchronization signal to a touch driver and a display panel through an integrated control circuit;
outputting a touch mode signal to the integrated control circuit through the touch driver; and
generating a synchronization enabling signal to the touch driver through the integrated control circuit according to the touch mode signal.
11. The operation method according to claim 10 , wherein the first synchronization signal is synchronized with a source output enabling signal.
12. The operation method according to claim 10 , wherein the touch driver is further coupled to a touch panel, and the operation method further comprises:
whether the touch panel follows the first synchronization signal to perform touch sensing is controlled by the touch driver according to the synchronization enabling signal.
13. The operation method according to claim 12 , wherein the synchronization enabling signal is at a first voltage level, and the touch panel follows the first synchronization signal to perform touch sensing.
14. The operation method according to claim 13 , wherein the step of controlling whether the touch panel follows the first synchronization signal to perform touch sensing comprises:
determining that a sensing period of the touch panel is synchronized with a screen idling period of the display panel updating a screen through the touch driver according to the first synchronization signal.
15. The operation method according to claim 14 , wherein the synchronization enabling signal is at a second voltage level, the touch panel does not follow the first synchronization signal to perform touch sensing, and the sensing period of the touch panel is not synchronized with the screen idling period of the display panel.
16. The operation method according to claim 13 , wherein when a stylus performs a general operation, the synchronization enabling signal is at the first voltage level.
17. The operation method according to claim 10 , wherein the integrated control circuit comprises a host control circuit and a TCON, wherein generating the synchronization enabling signal to the touch driver comprises:
outputting the first synchronization signal to the touch driver and the display panel through the TCON;
generating a writing enabling signal to the TCON according to the touch mode signal through the host control circuit;
generating the first synchronization signal according to the writing enabling signal through the TCON; and
outputting the synchronization enabling signal to the touch driver through the host control circuit or the TCON.
18. The operation method according to claim 17 , wherein generating the synchronization enabling signal to the touch driver further comprises:
when the host control circuit determines that the writing enabling signal is at a third voltage level, the synchronization enabling signal having a first voltage level is output through the host control circuit.