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Touch substrate, touch display panel and touch display device

A substrate and touch technology, applied in instruments, electrical digital data processing, data processing input/output process, etc., can solve problems such as pressure detection accuracy drop, performance degradation, reference voltage value change, etc., to achieve diverse driving methods, Improve the effect of changing and improving accuracy

Active Publication Date: 2018-10-23
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the display device provided by the prior art, the voltages received by the signal terminal 01 and the signal terminal 02 are fixed respectively, and the driving mode is single. The reference voltage value changes, resulting in a decrease in the accuracy of pressure detection

Method used

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  • Touch substrate, touch display panel and touch display device
  • Touch substrate, touch display panel and touch display device
  • Touch substrate, touch display panel and touch display device

Examples

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Embodiment Construction

[0024] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0025] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0026] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0027] In all examples shown and discussed herein, any specific values ​​should be construed as exemplary only, and not as limitations. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a touch substrate, a touch display panel and a touch display device and belongs to the field of a touch technology. The touch substrate comprises at least one pressure sensor,wherein the pressure sensor includes a first signal end, a third signal end, a second signal end and a fourth signal end; the first signal end and the third signal end are a first end group; the second signal end and the fourth signal end are a second end group; one of the first end group and the second end group receives a bias voltage provided by a signal processing unit, and the other of the first end group and the second end group outputs a detection voltage to the signal processing unit; the bias voltage includes a first voltage signal and a second voltage signal; the touch substrate comprises a signal switching unit; and the signal switching unit is used for enabling the first end group and the second end group to respectively receive the bias voltage at different moments, or the signal switching unit is used for enabling switching of voltage signals of the two signal ends in the end group for receiving the bias voltage. Compared with the prior art, the phenomena of characteristic degradation and performance attenuation of the pressure sensor can be improved, and the quality of the touch substrate is improved.

Description

technical field [0001] The present invention relates to the field of touch technology, and more specifically, to a touch substrate, a touch display panel and a touch display device. Background technique [0002] A display device provided in the prior art has the function of sensing pressure. [0003] There are many specific structures of pressure sensors, among them, please refer to figure 1 , figure 1 The illustrated pressure sensor 010 comprises four signal terminals 01 , 02 , 03 and 04 . Wherein, the signal terminal 01 and the signal terminal 02 are used to receive a bias voltage, wherein the signal terminal 01 and the signal terminal 02 respectively receive electrical signals with different voltages. The signal terminal 03 and the signal terminal 04 are used to output the electrical signal of the pressure sensor 010 . When there is no pressure touch, the output voltages of the signal terminal 03 and the signal terminal 04 are reference voltages. When the pressure to...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0414
Inventor 杨文强黄敏孙莹许育民
Owner XIAMEN TIANMA MICRO ELECTRONICS
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