Touch panel display system and driving method thereof
A touch panel display system and driving method thereof is provided. The touch panel display system includes a display device and a display circuit coupled to the display device for driving a display position of the display device. The system further includes a sensing device coupled to the display device for sensing an contact pressure, and a sensing circuit coupled to the sensing device for driving a sensing position of the sensing device. The system further includes a synchronous controller coupled to the display circuit and the sensing circuit for synchronously controlling the display circuit and the sensing circuit such that the display position and the sensing position are not overlapped and maintained beyond a predetermined distance.
1. A touch panel display system, comprising:
a display device;
a display circuit, coupled to the display device, for driving a display position of the display device;
a sensing device, coupled to the display device, for sensing a contact pressure;
a sensing circuit, coupled to the sensing device, for driving a sensing position of the sensing device, and
a synchronous controller, coupled to the display circuit and the sensing circuit, and monitoring the display position and the sensing position for synchronously controlling the display circuit and the sensing circuit such that the display position and the sensing position are not overlapped and maintained beyond a predetermined distance,
wherein the synchronous controller determines a distance between the display position and the sensing position after the sensing device senses the contact pressure and stops driving the display circuit when the distance between the display position and the sensing position is less than the predetermined distance, and the predetermined distance is not zero.
2. The touch panel display system as claimed in claim 1 , wherein the synchronous controller instructs the sensing circuit to temporarily stop driving the sensing position until the display position and the sensing position are maintained beyond the predetermined distance when the distance between the display position and sensing position is less than the predetermined distance.
3. The touch panel display system as claimed in claim 1 , wherein the synchronous controller instructs the display circuit or the sensing circuit to temporarily speed up driving the display position or the sensing position until the display position and the sensing position are maintained beyond the predetermined distance when the distance between the display position and sensing position is less than the predetermined distance.
4. The touch panel display system as claimed in claim 1 , wherein the synchronous controller is activated when the outside touch is determined.
5. The touch panel display system as claimed in claim 1 , wherein the distance between the display position and the sensing position is measured on a display surface of the touch panel display.
6. The touch panel display system as claimed in claim 1 , wherein the distance between the display position and the sensing position is obtain by detecting driving signals of the display circuit and the sensing circuit to monitor the current display position and the sensing position.
7. A driving method for a touch panel display, comprising:
driving a display position of a display device;
driving a sensing position of a sensing device;
monitoring the display position and the sensing position;
controlling the display device and the sensing device synchronously such that the display position and the sensing position are not overlapped and maintained beyond a predetermined distance;
determining a distance between the display position and the sensing position after the sensing device senses a contact pressure; and
stopping driving a display circuit when the distance between the display position and the sensing position is less than the predetermined distance,
wherein the predetermined distance is not zero.
8. The driving method for a touch panel display as claimed in claim 7 , wherein the controlling the display device and the sensing synchronously further comprises
stopping a sensing circuit coupled to the sensing device temporarily until the display position and the sensing position are maintained beyond the predetermined distance when the distance between the display position and the sensing position is less than the predetermined distance.
9. The driving method for a touch panel display as claimed in claim 7 , wherein the controlling the display device and the sensing synchronously comprises:
speeding up driving a display circuit coupled to the display device or a sensing circuit coupled to the sensing device temporarily until the display position and the sensing position are maintained beyond the predetermined distance when the distance between the display position and the sensing position is less than the predetermined distance.
10. The driving method for a touch panel display as claimed in claim 7 , further comprising:
determining whether there is an outside touch existing to determine whether to activate the synchronous controller.
11. The driving method for a touch panel display as claimed in claim 7 , wherein the distance between the display position and the sensing position is measured on a display surface of the touch panel display.
12. The driving method for a touch panel display as claimed in claim 7 , wherein the distance between the display position and the sensing position is obtain by detecting driving signals of the display circuit and the sensing circuit to monitor the current display position and the sensing position.