Manufacturing method of carbon-silver composite target for curved touch screen

Abstract

The invention provides a manufacturing method of a carbon-silver composite target for a curved touch screen. The manufacturing method comprises the following steps: adding a silver salt, a dispersant and a stabilizer to a carbon material aqueous solution to prepare carbon material powder on the surface of which nanosilver particles are adsorbed; next, feeding the carbon material powder into silver paste to obtain high-temperature mixed paste, wherein based on the total mass of the carbon material powder and raw material silver, 0.3-45% of the carbon material powder and 55-99.7% of the raw material silver are put; finally, molding the high-temperature mixed paste to obtain the carbon-silver composite target, wherein the carbon material is made from carbon nanotubes, graphene, or a mixture containing the carbon nanotubes and the graphene. The carbon-silver composite target can be used for preparing the curved touch screen having the excellent buckling resistance; the manufactured curved touch screen is convenient to transport; a favorable condition is created for batch production of the large-size touch screens.

Description

technical field [0001] The invention belongs to the field of target material manufacturing, in particular to a method for manufacturing a carbon-silver composite target material for a curved touch screen. Background technique [0002] Touch screen, also known as touch panel, is currently the simplest, most convenient and natural way of human-computer interaction. A touch screen is an input device capable of selecting content displayed on a screen of an image display device by a human hand or an object for inputting user commands. Moreover, with the development of technology, the touch screen can also replace the additional input devices coupled to the image display device, such as a keyboard and a mouse, and the scope of use is gradually increasing. [0003] At present, the touch screen on the market is mainly composed of ITO (ie, indium tin oxide) transparent conductive material, and this kind of touch screen is also called "ITO touch screen". With the increasingly mature...

AI Technical Summary

Problems solved by technology

At present, most technicians use flexible transparent substrates such as PET (polyethylene terephthalate, commonly known as "polyester resin") to replace the hard glass base layer and the hardened plastic layer to achieve the bending of the substrate. That is, the existing flexible touch screen is made of ITO transparent conductive material combined with a flexible transparent substrate, but because the ITO transparent conductive material itself is not easy to bend, when bending this flexible touch screen , the touch screen will still fail due to breakage

Images