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Flexible pressure sensor and preparation method thereof

A pressure sensor and flexible technology, applied in the field of pressure detection, can solve the problems of difficult assembly and low sensitivity, and achieve the effect of avoiding deformation of the membrane material, widening the detection range, and being light, thin and compact.

Pending Publication Date: 2021-09-03
SUZHOU LEANSTAR ELECTRONICS TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the defects of high assembly difficulty and low sensitivity in the prior art, and provide a flexible pressure sensor that does not require assembly and greatly improves sensitivity

Method used

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  • Flexible pressure sensor and preparation method thereof
  • Flexible pressure sensor and preparation method thereof
  • Flexible pressure sensor and preparation method thereof

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Effect test

Embodiment 1

[0036] like figure 1 An embodiment of the present invention shown includes a flexible substrate 1, a patterned electrode 2 in close contact with the flexible substrate 1, a signal transmission electrode 3 electrically connected to the patterned electrode 2, and a pressure sensitive electrode covering and patterned on the electrode 2. The layer 4 , and the protective layer 5 covering the pressure-sensitive layer 4 ; the patterned electrode 2 and the signal transmission electrode 3 are in close contact with the upper surface of the flexible substrate 1 .

[0037] The concrete preparation method of embodiment 1 is:

[0038] S1. Select a flexible film or textile fabric as the flexible substrate 1 . The flexible substrate 1 can choose flexible films or textile fabrics with different thicknesses of 1 μm-1mm, different softness such as 2H, 4H, low modulus, and different light transmittance according to needs. You can choose one of fully transparent, translucent or opaque. From but ...

Embodiment 2

[0044] like figure 2 Another embodiment of the present invention shown includes a flexible substrate 1, a patterned electrode 2 in close contact with the flexible substrate 1, a signal transmission electrode A31 arranged on the flexible substrate 1 and electrically connected to the patterned electrode 2, covering the patterned electrode A31. The insulating layer 6 on the chemical electrode 2 and the signal transmission electrode A31, the signal transmission electrode B32 arranged on the insulation layer 6, the pressure-sensitive layer 4 covering the signal transmission electrode B32, and the protection covering the pressure-sensitive layer 4 layer 5, wherein the area of ​​the pressure sensitive layer 4 completely covers the area of ​​the patterned electrode 2. The position of the insulating layer 6 corresponding to the patterned electrode 2 has a window, and the signal transmission electrode B32 is electrically connected to the patterned electrode 2 through the window. The s...

Embodiment 3

[0053] like image 3 and Figure 4 Another embodiment of the present invention shown includes a flexible substrate 1, a patterned electrode 2, a signal transmission electrode 3, a pressure-sensitive layer 4 and a protective layer 5, wherein the patterned electrode 2 includes a flexible substrate in close contact with the upper surface of the flexible substrate 1. and the first patterned electrode 21 and the second patterned electrode 22 on the lower surface, the first patterned electrode 21 is covered with a first pressure sensitive layer 41, and the second patterned electrode 22 is covered with a second pressure sensitive layer 42, The first pressure-sensitive layer 41 is covered with a first protective layer 51, and the second pressure-sensitive layer 42 is covered with a second protective layer 52; the signal transmission electrode 3 includes a first signal transmission electrode 33 and a second signal transmission electrode 34, and the second pressure-sensitive layer 42 is...

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Abstract

The invention belongs to the technical field of pressure detection, and particularly relates to a flexible pressure sensor and a preparation method thereof. The flexible pressure sensor comprises a flexible substrate, a patterned electrode in close contact with the flexible substrate, a signal transmission electrode electrically connected with the patterned electrode, a pressure-sensitive layer covering the patterned electrode, and a protective layer covering the pressure-sensitive layer or the signal transmission electrode. The preparation method comprises the following steps: S1, selecting a flexible film or a textile fabric as a flexible substrate; S2, manufacturing a patterned electrode layer; S3, preparing a pressure-sensitive layer; S4, preparing a first protection layer; S5, manufacturing a signal transmission electrode; and S6, preparing a second protection layer. The patterned electrode, the pressure-sensitive layer and the protective layer are all directly processed layer by layer through printing or etching, so that the processes of fitting processing, packaging and the like are omitted, the deformation of a film material can be effectively avoided, and the sensor is light, thin, small and exquisite in size, low in power consumption, suitable for application requirements in various occasions and high in universality.

Description

technical field [0001] The invention belongs to the technical field of pressure detection, and in particular relates to a flexible pressure sensor and a preparation method thereof. Background technique [0002] With the continuous development of industries such as the Internet of Things and artificial intelligence, the application requirements of the information age pose new challenges to ordinary sensors: the development of new materials, new processes and new sensors to achieve ultra-thin, miniaturized, integrated, Intelligent development. [0003] In order to meet the above challenges, the present invention provides a new type of flexible sensor, which is simpler in structure, thinner in thickness and higher in integration than the existing flexible sensor, reduces the difficulty of assembly and the cost of mass production, and effectively avoids the deformation of the membrane material, It has the characteristics of flexibility, free bending, portability, wearable, etc....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L1/18
CPCG01L1/18
Inventor 熊作平
Owner SUZHOU LEANSTAR ELECTRONICS TECH
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