Ultrathin flexible capacitive touch sensor based on graphene and preparation method thereof

A touch sensor and flexible capacitor technology, applied in instruments, manufacturing tools, welding equipment, etc., can solve the problems of inability to achieve ultra-thin devices, increase in overall thickness, and inability to meet demands, achieve good flexibility, reduce difficulty, and improve quality. rate effect

Active Publication Date: 2017-05-10
常州第六元素半导体有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Because the traditional capacitive touch sensor uses the traditional material ITO, it cannot achieve better flexibility. Similarly, because the ITO film is fragile, when making a touch sensor, it is very easy to cause sudden changes in the properties of ITO due to bending, such as conductive In this case, the bending in the manufacturing process can only be reduced by increasing the thickness of the ITO and the substrate, but this will lead to an increase in the overall thickness, and the ultra-thin device structure cannot be realized.
However, with...

Method used

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  • Ultrathin flexible capacitive touch sensor based on graphene and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] A graphene-based ultrathin flexible capacitive touch sensor in sheet form with a total thickness of 100 μm. include:

[0059] Ultra-thin flexible film 1, including a side and b side;

[0060] Both the a surface and the b surface are provided with channel electrodes 2;

[0061] The first conductive layer 31 arranged on the a surface, the first conductive layer 31 is connected to the capacitive sensing chip of the capacitive touch sensor through the channel electrode 2 of the a surface, and one end of the channel electrode 2 of the a surface is connected to the first One conductive layer 31 is overlapped together, and the other end extends to the capacitive sensing chip;

[0062] A first optical adhesive layer 41 disposed on the surface of the first conductive layer 31;

[0063] The second conductive layer 32 arranged on the b surface, the second conductive layer 32 is connected to the capacitive sensing chip of the capacitive touch sensor through the channel electrode...

Embodiment 2

[0076] A graphene-based ultrathin flexible capacitive touch sensor in sheet form with a total thickness of 100 μm. include:

[0077] Ultra-thin flexible film 1, including a side and b side;

[0078] Both the a surface and the b surface are provided with channel electrodes 2;

[0079] The first conductive layer 31 arranged on the a surface, the first conductive layer 31 is connected to the capacitive sensing chip of the capacitive touch sensor through the channel electrode 2 of the a surface, and one end of the channel electrode 2 of the a surface is connected to the first One conductive layer 31 is overlapped together, and the other end extends to the capacitive sensing chip;

[0080] A first optical adhesive layer 41 disposed on the surface of the first conductive layer 31;

[0081] The second conductive layer 32 arranged on the b surface, the second conductive layer 32 is connected to the capacitive sensing chip of the capacitive touch sensor through the channel electrode...

Embodiment 3

[0094] A graphene-based ultrathin flexible capacitive touch sensor in sheet form with a total thickness of 70 μm. include:

[0095] Ultra-thin flexible film 1, including a side and b side;

[0096] Both the a surface and the b surface are provided with channel electrodes 2;

[0097] The first conductive layer 31 arranged on the a surface, the first conductive layer 31 is connected to the capacitive sensing chip of the capacitive touch sensor through the channel electrode 2 of the a surface, and one end of the channel electrode 2 of the a surface is connected to the first One conductive layer 31 is overlapped together, and the other end extends to the capacitive sensing chip;

[0098] A first optical adhesive layer 41 disposed on the surface of the first conductive layer 31;

[0099] The second conductive layer 32 arranged on the b surface, the second conductive layer 32 is connected to the capacitive sensing chip of the capacitive touch sensor through the channel electrode ...

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Abstract

The invention discloses an ultrathin flexible capacitive touch sensor based on graphene. The sensor comprises an ultrathin flexible membrane, the ultrathin flexible membrane includes a surface a and a surface b; the surface a and the surface b are each provided with a channel electrode; a first conductive layer is arranged on the surface a, the first conductive layer is connected with a capacitive induction chip of a capacitive touch sensor through the channel electrode arranged on the surface a, the first conductive layer is formed by patterning one layer or multiple layers of graphene membranes; a first optical rubber layer is arranged on the surface of the first conductive layer; a second conductive layer is arranged on the surface b, the second conductive layer is connected with the capacitive induction chip of the capacitive touch sensor through the channel electrode arranged on the surface b, the second conductive layer is formed by patterning one layer or multiple layers of graphene membranes; and a second optical rubber layer is arranged on the surface of the second conductive layer.

Description

technical field [0001] The invention relates to an ultra-thin flexible capacitive touch sensor, which belongs to the field of graphene electronic device manufacturing. Background technique [0002] Because the traditional capacitive touch sensor uses the traditional material ITO, it cannot achieve better flexibility. Similarly, because the ITO film is fragile, when making a touch sensor, it is very easy to cause sudden changes in the properties of ITO due to bending, such as conductive In this case, the only way to reduce the bending during the manufacturing process is to increase the thickness of the ITO and the substrate, but this will lead to an increase in the overall thickness, and the ultra-thin device structure cannot be achieved. However, with the vigorous development of flexible electronics and wearable industries, the demand for ultra-thin and ultra-flexible capacitive touch sensors is increasing. Existing solutions are generally based on ITO, by coating ITO film o...

Claims

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Application Information

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IPC IPC(8): G06F3/044B23K26/36C23C16/04C23C16/26
CPCB23K26/361C23C16/042C23C16/26G06F3/044G06F2203/04103G06F2203/04106
Inventor 王炜谭化兵
Owner 常州第六元素半导体有限公司
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