Copper-plated nanometer silver wire touch screen and manufacturing method thereof

Abstract

The invention discloses a copper-plated nanometer silver wire touch screen which comprises a cover plate made from hard materials or soft materials. An optical transparent adhesive, a touch sensing element, an anisotropic conductive adhesive and a flexible circuit board are sequentially stacked on one side of the cover plate. The cover plate and the touch sensing element are adhesively connected through the optical transparent adhesive. The flexible circuit board is connected with the touch sensing element through the anisotropic conductive adhesive. A manufacturing method of the copper-plated nanometer silver wire touch screen comprises the steps that yellow light process is carried out, and patterning operation is carried out on a copper-plated nanometer silver wire conductive film; the optical transparent adhesive is hollowed according to design; the flexible circuit board is bound to the touch sensing element in the step 1 through the anisotropic conductive adhesive; the cover plate and the touch sensing element are attached through the optical transparent adhesive, and the product is obtained. The manufacturing steps can be simplified, production efficiency is improved, the product yield is improved, and the copper-plated nanometer silver wire touch screen and the manufacturing method therefore are widely applied to various touch screens and manufacturing methods thereof.

Description

technical field [0001] The invention belongs to the field of electronic technology, and in particular relates to a touch screen, in particular to a copper-plated nano-silver wire touch screen and a manufacturing method thereof. Background technique [0002] As a man-machine interface window, the touch screen can greatly optimize the convenience of man-machine communication and provide better user experience. Capacitive touch screens have been widely used in consumer electronics products, such as smart phones, tablet computers and other devices. As the popularity of these products is getting higher and higher, and the manufacturing process is becoming more and more mature, for the module factory, a simpler processing technology and a lower-cost processing method become a module. The hard demand of the factory. Curved touch products, bendable or arbitrarily foldable touch products will become the development direction of the next generation of touch screen technology. With t...

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Problems solved by technology

Although the material has high light transmittance, low color cast, and suitable conductive resistance, it can basically meet the functional requirements of ordinary touch screens, but ITO itself still has many insurmountable problems.

For example (1) high brittleness, fragility, and cracking make the control of the production line relatively strict during processing, poor fault tolerance, and additional control costs; and due to its poor mechanical properties, ITO cannot be produced. Bendable and foldable touch products; (2) ITO film is subjected to high temperature treatment before processing, and recrystallization is required to make its electrical conductivity meet the requirements of use. On the one hand, high temperature treatment increases costs, and on the other hand, it also requires ITO The base material has the requirement of high temperature resistance, which will also increase the cost to a certain extent, and high temperature treatment will cause deformation of the base material, which will also increase certain difficulties for subsequent processing and design.

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