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Touch panel, driving method thereof, and touch display device

A driving method and a technology of a touch panel, which are applied in the directions of instruments, calculations, and electrical digital data processing, etc., can solve problems such as inability to detect the size of touch pressure, inability to realize three-dimensional touch detection, etc., and achieve easy implementation, low production cost, and simple control Effect

Inactive Publication Date: 2019-06-25
BOE TECH GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above touch screen can only realize the judgment of the touch position, but cannot detect the size of the touch pressure, and cannot realize three-dimensional touch detection

Method used

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  • Touch panel, driving method thereof, and touch display device
  • Touch panel, driving method thereof, and touch display device
  • Touch panel, driving method thereof, and touch display device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] combine Figure 1-Figure 3 As shown, this embodiment provides a touch panel, including a first substrate 10, a second substrate 20, and a touch pressure detection electrode for detecting the magnitude of the touch pressure.

[0025] The touch pressure detection electrodes include first touch electrodes 1 and second touch electrodes 2 , the first touch electrodes 1 are disposed on the first substrate 10 , and the second touch electrodes 2 are disposed on the second substrate 20 . A plurality of conductive connecting posts 3 are disposed on the first substrate 10 or the second substrate 20 . The connecting column 3 is in electrical contact with the first touch electrode or the second touch electrode. Specifically, such as figure 1 As shown, the connection post 3 is disposed on the second substrate, and is in electrical contact with the second touch electrode 2 , but not in contact with the first touch electrode 1 . When the touch pressures applied on the touch panel ar...

Embodiment 2

[0089] A touch display device is provided in this embodiment, comprising:

[0090] The touch panel in the first embodiment;

[0091] The controller is configured to apply an excitation signal to the first touch electrode during the first period of time, detect the magnitude of the signal on the second touch electrode, and determine the magnitude of the touch pressure according to the magnitude of the detection signal.

[0092] Wherein, the magnitude of the signal on the second touch electrode is directly proportional to the magnitude of the touch pressure applied on the touch panel.

[0093] The above touch display device can determine the magnitude of the touch pressure by applying an excitation signal to the first touch electrode and detecting the magnitude of the signal on the second touch electrode, with simple control and high detection sensitivity and accuracy.

[0094] In order to realize the detection of the touch position at the same time, the touch panel in this emb...

Embodiment 3

[0097] Based on the same inventive concept, this embodiment also provides a driving method for the touch panel in Embodiment 1, including:

[0098] Applying an excitation signal to the first touch electrode of the touch panel in the first time period, detecting the magnitude of the detection signal on the second touch electrode, and determining the magnitude of the touch pressure according to the magnitude of the detection signal.

[0099] Wherein, the magnitude of the detection signal on the second touch electrode is proportional to the magnitude of the touch pressure applied on the touch panel.

[0100] The above driving method can determine the magnitude of the touch pressure by applying an excitation signal to the first touch electrode and detecting the magnitude of the detection signal on the second touch electrode, with simple control and high detection sensitivity and accuracy.

[0101] Further, the touch panel further includes a third touch electrode, and the second to...

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PUM

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Abstract

The invention relates to the technical field of touch display, and discloses a touch panel, a driving method thereof, and a touch display device. The touch panel includes first touch electrodes, second touch electrodes, and conductive connecting columns. When the touch panel is not touched, the connecting column is in electrical contact with the first touch electrode or the second touch electrode. When the touch pressure is greater than a certain value, the touch panel is deformed, and the two ends of the plurality of connecting columns are in electrical contact with the first touch electrode and the second touch electrode respectively. And the greater the touch pressure, the more the number of connecting columns electrically connecting the first touch electrode and the second touch electrode. When the touch pressure is detected, an excitation signal is applied to the first touch electrode, and according to the second touch The magnitude of the detection signal on the electrodes can determine the magnitude of the touch pressure, can quickly detect the magnitude of the touch pressure, is simple to control, is easy to implement, and has low production costs.

Description

technical field [0001] The present invention relates to the technical field of touch display, in particular to a touch panel, a driving method thereof, and a touch display device. Background technique [0002] The ease of use and operational versatility of touchscreens coupled with falling prices and steadily increasing yields have made touchscreens an increasingly popular input device. The touch screen can be divided into plug-in type and built-in type. The plug-in type is to assemble the touch panel in front of the display screen, and the touch area covers the visible area of ​​the display screen to realize touch control. The built-in type is to integrate the touch electrodes on the display panel, with or without a protective glass on the outside, and the user can realize the operation by touching the screen with a finger. [0003] Since the capacitive touch screen has the advantages of high sensitivity, long life and multi-touch support, it has become the mainstream touc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G06F3/044
CPCG06F3/0414G06F3/044G06F2203/04103G06F2203/04106G06F3/0447
Inventor 古宏刚邵贤杰宋洁
Owner BOE TECH GRP CO LTD