Pressure-sensitive sensor, touch feedback device and related device

A tactile feedback and sensor technology, applied in the field of tactile feedback devices and related devices, and pressure-sensitive sensors, can solve the problems of complex structure of pressure-sensitive sensors, and achieve the effect of simple structure

Active Publication Date: 2016-07-27
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the structure of the currently used pressure-sensitive sensor is relatively complicated, so how to design a pressure-sensitive sensor with a simple structure is a technical problem urgently needed by those skilled in the art.

Method used

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  • Pressure-sensitive sensor, touch feedback device and related device
  • Pressure-sensitive sensor, touch feedback device and related device
  • Pressure-sensitive sensor, touch feedback device and related device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] In the above-mentioned pressure-sensitive sensor provided by the embodiment of the present invention, such asfigure 1 As shown, the pressure sensing electrode 21 is a columnar structure. In this way, when the first substrate 10 and / or the second substrate 20 are subjected to pressure, the pressure-sensitive detection electrode 21 can be brought into contact with the common electrode.

Embodiment 2

[0056] Preferably, in the above-mentioned pressure-sensitive sensor provided by the embodiment of the present invention, such as Figure 2a and Figure 2b As shown, the area of ​​the cross section of the pressure sensing electrode 21 parallel to the second substrate 20 decreases as the distance between the cross section and the second substrate 20 increases. That is, it is equivalent to setting the pressure-sensitive detection electrodes in a structure of "thin at the top and thick at the bottom", "up" refers to a direction away from the second substrate, and "down" refers to a direction close to the second substrate. In this way, "bottom thick" can increase the contact area between the pressure-sensitive detection electrodes and the second substrate, thereby increasing the adhesion force, and "upper thin" can not only reduce weight, but also increase the distance between adjacent pressure-sensitive detection electrodes, thereby Avoid interfering with each other.

[0057] Pr...

Embodiment 3

[0062] In the above-mentioned pressure-sensitive sensor provided by the embodiment of the present invention, such as Figure 3a and Figure 3b As shown, the pressure sensing electrode 21 includes a first electrode part 211 located on the side of the second substrate 20 facing the first substrate 10, and a second electrode part 212 located on the side of the first electrode part 211 facing the first substrate 10; wherein ,

[0063] The orthographic projection of the first electrode part 211 on the second substrate 20 covers the orthographic projection of the second electrode part 212 on the second substrate 20;

[0064] The area of ​​the cross section of the second electrode portion 212 parallel to the second substrate 20 decreases as the distance between the cross section and the second substrate 20 increases.

[0065] Preferably, in the above-mentioned pressure-sensitive sensor provided by the embodiment of the present invention, such as Figure 3a As shown, the second ele...

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PUM

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Abstract

The invention discloses a pressure-sensitive sensor, a touch feedback device and a related device. The pressure-sensitive sensor comprises a first base plate, a second base plate, frame sealing glue, a public electrode, pressure-sensitive detection electrodes and a pressure-sensitive detection circuit; the frame sealing glue seals and supports the first base plate and the second base plate, and it can be guaranteed that the pressure-sensitive detection electrodes are insulating with the public electrode when no pressure action exists; the pressure-sensitive detection electrodes are in contact with the public electrode only when the first base plate and / or the second base plate are / is under pressure, so that it is guaranteed that the pressure-sensitive detection electrodes generate voltage only when the base plates are under pressure, therefore it is guaranteed that the pressure-sensitive detection circuit judges the touch position by detecting voltage values on all the pressure-sensitive detection electrodes, and the pressure-sensitive sensor is simple in structure.

Description

technical field [0001] The invention relates to the field of pressure-sensitive touch technology, in particular to a pressure-sensitive sensor, a tactile feedback device and related devices. Background technique [0002] Pressure sensing technology refers to the technology that can detect external force. This technology has been used in industrial control, medical and other fields a long time ago. There are many types of pressure sensors, such as resistance strain gauge pressure sensors, semiconductor strain gauge pressure sensors, piezoresistive pressure sensors, inductive pressure sensors, capacitive pressure sensors, resonant pressure sensors and capacitive acceleration sensors. pressure sensor etc. [0003] However, the structure of the currently used pressure-sensitive sensor is relatively complicated, so how to design a pressure-sensitive sensor with a simple structure is a technical problem urgently needed to be solved by those skilled in the art. Contents of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
CPCG06F3/0414G06F3/04144G06F2203/04103
Inventor 朱琳
Owner BOE TECH GRP CO LTD
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