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Flexible capacitive multi-touch touch screen using gel and manufacturing method

A manufacturing method and touch screen technology, applied in electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as high stiffness, inability to bend and stretch, and achieve high electrical conductivity, high stretching ratio, The effect of high light transmittance

Inactive Publication Date: 2017-11-28
XI AN JIAOTONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Wearable devices require the touch screen to have soft characteristics. The current touch screen is made of transparent conductor ITO as the conductor and glass as the insulating layer. The rigidity is very large and cannot be bent and stretched, so it cannot meet the new requirements.

Method used

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  • Flexible capacitive multi-touch touch screen using gel and manufacturing method
  • Flexible capacitive multi-touch touch screen using gel and manufacturing method

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Embodiment Construction

[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0018] Such as figure 1 with figure 2 As shown, the present invention uses a flexible capacitive multi-touch touch screen of gel, comprising a lower protective layer 1 made of polydimethylsiloxane, chemically bonded on the lower protective layer 1 made of polyacrylamide - a lateral conductive layer 2 made of lithium chloride gel, a dielectric layer 3 made of polydimethylsiloxane chemically bonded on top of the lateral conductive layer 2, chemically bonded between the dielectric layers 3 The vertical conductive layer 4 made of polyacrylamide-lithium chloride gel is chemically bonded to the protective layer 5 made of polydimethylsiloxane on the vertical conductive layer 4; the horizontal conductive layer 2 and the longitudinal conductive layer 4 are composed of multiplex gels made of polyacrylamide-lithium chloride gel. The patterns...

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Abstract

The invention provides a flexible capacitive multi-touch touch screen using gel and a preparation method. The method pioneeringly prepares a polyacrylamide-lithium chloride gel with extremely low modulus of elasticity as a transparent conductor material, utilizes another type of polydimethylsiloxane with extremely low modulus of elasticity as a transparent insulation protective material and a dielectric material; the method also pioneeringly provides a surface treatment method for a type of polydimethylsiloxane, and the polydimethylsiloxane and the polyacrylamide-lithium chloride gel form a solid chemical bond; crossing the middle of two polyacrylamide-lithium chloride conductive layers is a polydimethylsiloxane insulation layer, forming a cross-point array of capacitors, and a polydimethylsiloxane protection layer is wrapped on the outside. The touch screen has the advantages of being soft and being high in transparency and the like.

Description

technical field [0001] The invention relates to a flexible capacitive touch screen, in particular to a flexible capacitive multi-touch touch screen using gel and a manufacturing method. Background technique [0002] The rapid development of smart devices has benefited from the application of multi-touch touch screens, and the emergence of wearable devices has greatly expanded the trial range of smart device terminals. Wearable devices require touch screens to have soft characteristics. The current touch screen is made of transparent conductor ITO as the conductor and glass as the insulating layer. It is very rigid and cannot be bent and stretched, so it cannot meet the new requirements. Contents of the invention [0003] In order to overcome the above-mentioned problems in the prior art, the object of the present invention is to provide a flexible capacitive multi-touch touch screen using gel and its manufacturing method. It is the first to prepare polyacrylamide-chlorinat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/044
CPCG06F3/044G06F2203/04103
Inventor 盛昊杨航宋思扬周进雄
Owner XI AN JIAOTONG UNIV
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