Driving method and device of touch panel and touch display device

A technology of a touch panel and a driving method, which is applied in the input/output process of data processing, instruments, electrical digital data processing, etc., and can solve the problems of inability to realize real-time display, long response time of the touch display device, and touch response Long time and other problems, to achieve the effect of shortening the response time of the whole machine, shortening the touch response time, and shortening the time

Pending Publication Date: 2021-12-07
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention provides a touch panel driving method and device, and a touch display device to solve the existing method of progressively scanning three frames to determine the touch position, so that the touch response time is longer, which in turn leads to a touch display device The response time of the whole machine is long, and the real-time display effect cannot be realized

Method used

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  • Driving method and device of touch panel and touch display device
  • Driving method and device of touch panel and touch display device
  • Driving method and device of touch panel and touch display device

Examples

Experimental program
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Effect test

Embodiment 1

[0092] refer to Figure 4 , which shows a flow chart of a method for driving a touch panel according to an embodiment of the present invention, which may specifically include the following steps:

[0093] Step 401 , simultaneously input a first scanning signal to each of the first touch electrodes, and receive a first sensing signal of each of the second touch electrodes, so as to determine a suspected column according to the first sensing signal.

[0094] In the embodiment of the present invention, as Figure 5 and Image 6 As shown, the touch panel 20 includes a plurality of first touch electrodes 21 distributed along the row direction and a plurality of second touch electrodes 22 distributed along the column direction, and each first touch electrode 21 includes a plurality of first touch electrodes 21. Control sub-electrodes, each second touch electrode 22 includes a plurality of second touch sub-electrodes.

[0095] Wherein, the first touch electrode 21 is a touch drivi...

Embodiment 2

[0116] refer to Figure 8 , which shows a specific flowchart of a driving method for a touch panel according to an embodiment of the present invention, which may specifically include the following steps:

[0117] Step 801 , simultaneously input K consecutive first scanning signals to each of the first touch electrodes, and receive K first sensing signals of each of the second touch electrodes.

[0118] In the embodiment of the present invention, such as Figure 5 and Image 6 As shown, the touch panel 20 includes a plurality of first touch electrodes 21 distributed along the row direction and a plurality of second touch electrodes 22 distributed along the column direction, and each first touch electrode 21 includes a plurality of first touch electrodes 21. Control sub-electrodes, each second touch electrode 22 includes a plurality of second touch sub-electrodes. Wherein, the first touch electrodes 21 are touch driving electrodes, and the second touch electrodes 22 are touch s...

Embodiment 3

[0164] refer to Figure 9 , shows a structural block diagram of a driving device for a touch panel according to an embodiment of the present invention.

[0165] An embodiment of the present invention provides a driving device 900 for a touch panel. The touch panel includes a plurality of first touch electrodes distributed along a row direction and a plurality of second touch electrodes distributed along a column direction. The touch panel The drive unit 900 includes:

[0166] The suspicious column determination module 901 is configured to simultaneously input a first scanning signal to each of the first touch electrodes, and receive a first sensing signal of each of the second touch electrodes, so that according to the first sensing Signal identifies the suspect column;

[0167] The suspicious row determination module 902 is configured to simultaneously input a second scanning signal to each of the second touch electrodes, and receive a second sensing signal of each of the f...

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PUM

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Abstract

The invention provides a driving method and device of a touch panel and a touch display device, and relates to the technical field of display. The first scanning signals are input to the first touch electrodes at the same time, the first induction signals of the second touch electrodes are received to determine the suspected columns, the second scanning signals are input to the second touch electrodes at the same time, and the second induction signals of the first touch electrodes are received to determine the suspected rows, according to the suspected columns and the suspected rows, a suspected touch area is determined, third scanning signals are sequentially input into all the first touch electrodes in the suspected touch area row by row, and third induction signals of all the second touch electrodes in the suspected touch area are received to determine the touch position. Therefore, the time required for determining the suspected row and the suspected column in the first two frames is greatly shortened, so that the time required for detecting the touch position is shortened, the whole machine response time of the touch display device is further shortened, and a real-time display effect can be realized.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method and device for driving a touch panel, and a touch display device. Background technique [0002] With the continuous development of display technology, touch display technology has also received extensive attention. Since capacitive touch can achieve flat display and active pen pressure-sensitive display, it is considered to be the mainstream trend of future touch. [0003] At present, in order to prevent false touches caused by environmental noise interference, the driving method of the touch panel usually needs to scan three frames of the touch panel to determine the touch position. Specifically, when scanning each frame of the touch panel, it is necessary to provide scanning signals to each touch driving electrode row by row, and determine the suspected touch position according to the sensing signal of the touch sensing electrode, and then scan the three frame...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0412G06F3/04166G06F3/044G06F3/0446G06F3/04164
Inventor 郭瑞韩丽辉苏俊宁布占场王贺陶
Owner BOE TECH GRP CO LTD
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