TOUCH DISPLAY APPARATUS AND DRIVING METHOD THEREOF

• US 20150049050A1
• Filed: 05/22/2013
• Published: 02/19/2015
• Est. Priority Date: 03/29/2013
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Zhao, Jiayang
• Granted Patent: US 9,851,851 B2
• Time in Patent Office: Days
• US Class Current: 345/174
• CPC Class Codes: G06F 3/04164 Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/04184 Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
• CPC Class Codes: G06F 3/0446 using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes

Abstract

Provided a touch display apparatus and a driving method thereof, and the touch display apparatus comprising: a plurality of gate lines, a plurality of data lines, pixel electrodes and thin film transistors, wherein the touch display apparatus further includes a plurality of first common electrodes, the plurality of first common electrodes are disposed to be intersected and insulated with the plurality of data lines, and are used for receiving a touch detection driving signal to form touch driving electrodes at a first moment, and for receiving a display driving signal at a second moment; the plurality of data lines are combined as sensing electrodes so as to form a mutual-capacitance structure with the touch driving electrodes, at the first moment; and the pixel electrode is used for receiving a pixel signal so as to display in cooperation with the first common electrodes, at the second moment.

Claims

1-10. -10. (canceled)

11. A touch display apparatus comprising:

a plurality of gate lines, a plurality of data lines, pixel electrodes and thin film transistors, wherein the touch display apparatus further comprises a plurality of first common electrodes, the plurality of first common electrodes are disposed to be intersected and insulated with the plurality of data lines, and are used for receiving a touch detection driving signal to form touch driving electrodes at a first moment, and for receiving a display driving signal at a second moment;

the plurality of data lines are combined as sensing electrodes so as to form a mutual-capacitance structure with the touch driving electrodes, at the first moment; and

the pixel electrodes is used for receiving a pixel signal so as to display in cooperation with the first common electrodes, at the second moment.

12. The touch display apparatus of claim 11, wherein the touch display apparatus further comprises:

a touching module for applying the touch detection driving signal to the first common electrodes at the first moment; and

a display module for applying the display driving signal to the first common electrodes and applying the pixel signal to the pixel electrodes at the second moment.

13. The touch display apparatus of claim 12, wherein the sensing electrodes at the first moment further comprise second common electrodes disposed in parallel with the plurality of data lines.

14. The touch display apparatus of claim 11, wherein the sensing electrodes at the first moment comprise a plurality of sub sensing electrodes, and wherein the plurality of sub sensing electrodes comprise several data lines which are adjacent to each other or not.

15. The touch display apparatus of claim 14, wherein numbers of the data lines included in the adjacent sub sensing electrodes are equal.

16. The touch display apparatus of claim 11, wherein the touch display apparatus further comprises a switch for controlling to connect the data lines to the touching module at the first moment and connect the data lines to the display module at the second module.

17. The touch display apparatus of claim 11, wherein the touch display apparatus further comprises a detection module for determining a touch position according to a capacitance formed between the touch driving electrode and the sensing electrode.

18. A driving method for the touch display apparatus, comprising:

at a first moment, combining a plurality of data lines as a plurality of sensing electrodes, and applying a touch detection driving signal to first common electrodes, in order to perform a touch operation based on the touch detection driving signal; and

at a second moment, applying a display driving signal to the first common electrodes, and applying a pixel signal to pixel electrodes, in order to perform a display based on the display driving signal and the pixel signal, wherein the touch display apparatus comprises;

a plurality of gate lines, a plurality of data lines, pixel electrodes and thin film transistors, wherein the touch display apparatus further comprises a plurality of first common electrodes, the plurality of first common electrodes are disposed to be intersected and insulated with the plurality of data lines, and are used for receiving a touch detection driving signal to form touch driving electrodes at a first moment, and for receiving a display driving signal at a second moment;

the plurality of data lines are combined as sensing electrodes so as to form a mutual-capacitance structure with the touch driving electrodes, at the first moment; and

the pixel electrodes is used for receiving a pixel signal so as to display in cooperation with the first common electrodes, at the second moment.

19. The driving method for the touch display apparatus of claim 18, wherein the touch display apparatus further comprises:

a touching module for applying the touch detection driving signal to the first common electrodes at the first moment; and

a display module for applying the display driving signal to the first common electrodes and applying the pixel signal to the pixel electrodes at the second moment.

21. The driving method for the touch display apparatus of claim 18, wherein the sensing electrodes at the first moment comprise a plurality of sub sensing electrodes, and wherein the plurality of sub sensing electrodes comprise several data lines which are adjacent to each other or not.

22. The driving method for the touch display apparatus of claim 21, wherein numbers of the data lines included in the adjacent sub sensing electrodes are equal.

23. The driving method for the touch display apparatus of claim 18, wherein the touch display apparatus further comprises a switch for controlling to connect the data lines to the touching module at the first moment and connect the data lines to the display module at the second module.

24. The driving method for the touch display apparatus of claim 18, wherein the touch display apparatus further comprises a detection module for determining a touch position according to a capacitance formed between the touch driving electrode and the sensing electrode.

25. The driving method for the touch display apparatus of claim 23, comprising:

at a first moment, combining a plurality of data lines as a plurality of sensing electrodes, and applying a touch detection driving signal to first common electrodes, in order to perform a touch operation based on the touch detection driving signal; and

at a second moment, applying a display driving signal to the first common electrodes, and applying a pixel signal to pixel electrodes, in order to perform a display based on the display driving signal and the pixel signal.

26. A driving method for the touch display apparatus of claim 24, comprising:

at a first moment, combining a plurality of data lines as a plurality of sensing electrodes, and applying a touch detection driving signal to first common electrodes, in order to perform a touch operation based on the touch detection driving signal; and

at a second moment, applying a display driving signal to the first common electrodes, and applying a pixel signal to pixel electrodes, in order to perform a display based on the display driving signal and the pixel signal.