Touch display device, its driving method and non-transient storage medium

• US 9,898,124 B2
• Filed: 12/18/2013
• Issued: 02/20/2018
• Est. Priority Date: 08/27/2013
• Status: Active Grant

• Current Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Original Assignee: Beijing BOE Optoelectronics Technology Co Ltd. (BOE Technology Group Co., Ltd.), BOE Technology Group Co., Ltd.
• Inventors: Ding, Xiaoliang, Dong, Xue, Wang, Haisheng, Liu, Yingming, Ren, Tao, Yang, Shengji
• Primary Examiner(s): Mengistu, Amare
• Assistant Examiner(s): STEPP JONES, SHAWNA T
• Application Number:
  US14/387,721
• Publication Number:
  US 20160018938A1
• Time in Patent Office: 1,525 Days
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• 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

Abstract

The present invention relates to the field of display technology, and provides a touch display device and its driving method, so as to increase the time spent for scanning a touch signal. In the method for driving the touch display device, the touch display device comprises n display regions, each of which corresponding to a plurality of rows of pixels, and n is an integer greater than or equal to 2. The method comprises the step of: during a progressive scanning procedure, scanning one of the n display regions and outputting a display signal to the scanned display region, and at the same time inputting a touch signal to the remaining n−1 display regions that are not scanned.

Claims

1. A method for driving a touch display device comprising n display regions, corresponding to a plurality of rows of pixels, n being an integer greater than or equal to 2, the method comprising:

during a progressive scanning procedure, scanning one of the n display regions and outputting a display signal to the scanned display region when inputting a touch signal to one of the remaining n−

1 display regions that are not scanned; and

inputting, when one of the n display regions is scanned and the display signal is outputted to the scanned display region during the progressive scanning procedure, the touch signal to a plurality of continuous display regions of the remaining n−

1 display regions that are not scanned,

wherein;

in the case that n is en even number, scanning a first display region of the n display regions when inputting the touch signal to a plurality of continuous display regions of the n display regions starting from a

2. The method according to claim 1, wherein the method comprises:

in the case that n is an even number, scanning the first display region of the n display regions when inputting the touch signal to the

3. The method according to claim 2, wherein the touch display device includes a first display region, a second display region, a third display region, and a fourth display region and the method comprises:

in a first period of time within an identical display cycle, scanning the first display region and outputting the display signal to the first display region when inputting the touch signal to the third display region;

in a second period of time within the identical display cycle, scanning the second display region and outputting the display signal to the second display region when inputting the touch signal to the fourth display region;

in a third period of time within the identical display cycle, scanning the third display region and outputting the display signal to the third display region when inputting the touch signal to the first display region; and

in a fourth period of time within the identical display cycle, scanning the fourth display region and outputting the display signal to the fourth display region when inputting the touch signal to the second display region.

4. The method according to claim 1, wherein the number of the plurality of continuous display regions is 2.

5. The method according to claim 4, wherein the touch display device includes the first display region, a second display region, a third display region, and a fourth display region and the method comprises:

in a first period of time within an identical display cycle, scanning the first display region and outputting the display signal to the first display region when sequentially inputting the touch signal to the third display region and the fourth display region;

in a second period of time within the identical display cycle, scanning the second display region and outputting the display signal to the second display region when sequentially inputting the touch signal to the first display region and the third display region;

in a third period of time within the identical display cycle, scanning the third display region and outputting the display signal to the third display region when sequentially inputting the touch signal to the second display region and the fourth display region; and

in a fourth period of time within the identical display cycle, scanning the fourth display region and outputting the display signal to the fourth display region when sequentially inputting the touch signal to the first display region and the second display region.

6. The method according to claim 1, further comprising:

when the display region to which the display signal is to be output is identical to the display region to which the touch signal is to be input, outputting the display signal to the display region, and inputting the touch signal to a display region next to the display region; and

after the display signal is outputted to the display region, inputting the touch signal to the display region in a next period of time for scanning.

7. The method according to claim 6, wherein the plurality of continuous display regions include 3 or 4 display regions.

8. The method according to claim 1, wherein the number of the display regions is equal to or greater than 22.

9. A touch display device comprising:

n display regions, each of which corresponds to a plurality of rows of pixels, n being an integer greater than or equal to two;

a display module; and

a touch module,

wherein;

the display module is configured to, during a progressive scanning procedure, scan one of the n display regions and output a display signal to the scanned display region,

the touch module is configured to, during the progressive scanning procedure, input a touch signal to a plurality of continuous display regions of the remaining n−

1 display regions that are not scanned when the display module outputs the display signal to the scanned display region,

in the case that n is an even number, the display module is configured to scan a first display region of the n display regions when the touch module inputs the touch signal to the plurality of continuous display regions of the n display regions starting from a

10. The touch display device according to claim 9, wherein:

in the case that n is an even number, the display module is configured to scan the first display region of the n display regions when the touch module inputs the touch signal to the

11. The touch display device according to claim 10, wherein:

the touch display device includes the first display region, a second display region, a third display region, and a fourth display region,

in a first period of time within an identical display cycle, the display module is configured to scan the first display region and output the display signal to the first display region when the touch module inputs the touch signal to the third display region,

in a second period of time within the identical display cycle, the display module is configured to scan the second display region and output the display signal to the second display region when the touch module inputs the touch signal to the fourth display region,

in a third period of time within the identical display cycle, the display module is configured to scan the third display region and output the display signal to the third display region when the touch module inputs the touch signal to the first display region, and

in a fourth period of time within the identical display cycle, the display module is configured to scan the fourth display region and output the display signal to the fourth display region when the touch module inputs the touch signal to the second display region.

12. The touch display device according to claim 9, wherein the plurality of continuous display regions include 2 display regions.

13. The touch display device according to claim 12, wherein:

the touch display device includes the first display region, a second display region, a third display region, and a fourth display region,

in a first period of time within an identical display cycle, the display module is configured to scan the first display region and output the display signal to the first display region when the touch module sequentially inputs the touch signal to the third display region and the fourth display region,

in a second period of time with the identical display cycle, the display module is configured to scan the second display region and output the display signal to the second display region when the touch module sequentially inputs the touch signal to the first display region and the third display region,

in a third period of time in the identical display cycle, the display module is configured to scan the third display region and output the display signal to the third display region when the touch module sequentially inputs the touch signal to the second display region and the fourth display region, and

in a fourth period of time within the identical display cycle, the display module is configured to scan the fourth display region and output the display signal to the fourth display region when the touch module sequentially inputs the touch signal to the first display region and the second display region.

14. The touch display device according to claim 9, wherein when the display region to which the display signal is to be output is identical to the display region to which the touch signal is to be input, the display module is configured to output the display signal to the display region, and the touch module is configured to input the touch signal to a display region next to the display region, and after the display signal is outputted by the display module to the display region, the touch module is configured to input the touch signal to the display region in a next period of time for scanning.

15. The touch display device according to claim 9, wherein the display module and/or the touch module include a data line and a shielding layer located above the data line, and a fixed voltage is applied to the shielding layer, and the shielding layer is arranged in an identical layer to and insulated from a pixel electrode of the display module.

16. The touch display device according to claim 9, wherein the number of the display regions is equal to or greater than 22.

17. The touch display device according to claim 16, wherein the plurality of continuous display regions include 3 or 4 display regions.

18. A non-transient storage medium storing a program for driving a touch display device, the touch display device including n display regions, each of which corresponds to a plurality of rows of pixels, n being an integer greater than or equal to 2, the program causes the touch display device to execute the following step:

during a progressive scanning procedure, scanning one of the n display regions and outputting a display signal to the scanned display region when inputting a touch signal to one of the remaining n−

1 display regions that are not scanned; and

inputting, when one of the n display regions is scanned and the display signal is outputted to the scanned display region during the progressive scanning procedure, the touch signal to a plurality of continuous display regions of the remaining n−

1 display regions that are not scanned, and

wherein;

in the case that n is an even number, scanning a first display region of the n display regions when inputting the touch signal to the plurality of continuous display regions of the n display regions starting from a