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

A technology for a touch display panel and a driving method, which is applied in the fields of instruments, computing, electrical and digital data processing, etc., can solve the problems of poor uniformity of touch detection accuracy, decreased touch detection accuracy, and touch sensing signal volume of the touch display panel. Reduce and other problems to achieve the effect of improving touch detection accuracy and touch accuracy

Active Publication Date: 2019-05-24
XIAMEN TIANMA MICRO ELECTRONICS
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  • Description
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AI Technical Summary

Problems solved by technology

However, when the touch point is located at the edge of the touch emitter electrode, the change in the amount of charge is significantly reduced, resulting in a decrease in the amount of touch sensing signal at the touch point, making the touch detection accuracy at the edge of the touch emitter electrode decrease, resulting in poor uniformity of touch detection accuracy across the touch display panel

Method used

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

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Embodiment Construction

[0018] The application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain related inventions, rather than to limit the invention. It should also be noted that, for the convenience of description, only the parts related to the related invention are shown in the drawings.

[0019] It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application will be described in detail below with reference to the accompanying drawings and embodiments.

[0020] Please refer to figure 1 , which shows a schematic structural diagram of an embodiment of a touch display panel according to the present application.

[0021] Such as figure 1 As shown, the touch display panel 100 includes first to Nth touch electrodes TX1, TX2, ......

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Abstract

The invention discloses a touch control display panel and a driving method thereof and a touch control display device. The touch display panel includes N touch control electrodes, a public signal line, at least one touch control signal line and a touch control drive circuit, wherein the N touch control electrodes are arranged in the first direction and extend in the second direction. The touch control drive circuit includes a first control signal line set, a second control signal line set, a plurality of third control signal lines, first switch groups, second switch groups and third switch groups; each first switch group is electrically connected with one first control signal line and insulated with other first control signal lines, each first switch is electrically connected with at least one touch control signal line, each second switch group is electrically connected with one second control signal line and is insulated with other second control signal lines, and each second switch group is electrically connected with the public signal line; every third switch is electrically connected with one third control signal line, and each third switch is electrically connected with the public signal line. The touch control display panel and the touch control display device can improve the precision of touch control detection.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a touch display panel, a driving method thereof, and a touch display device. Background technique [0002] Touch screens can be divided into self-capacitive touch screens and mutual-capacity touch screens according to their touch principles. In a mutual-capacitance touch display screen, a mutual capacitance is usually formed by a touch-emitting electrode and a touch-sensing electrode, and a touch point is detected by measuring the change of charge in the mutual capacitance during a touch. [0003] When driving the above-mentioned mutual-capacitance touch display screen, in order to obtain accurate touch point positions, touch detection signals are usually provided to each touch emitter electrode in turn, that is, only one touch point is emitted at a time point. The electrodes provide touch detection signals. However, when the touch point is located at the edge of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041G02F1/1333
CPCG02F1/13338G06F3/0412G06F3/0418
Inventor 张磊
Owner XIAMEN TIANMA MICRO ELECTRONICS
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