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Method for manufacturing flexible touch screen and equipment for manufacturing touch electrode coil

A technology of flexible touch screens and electrode wires, applied in electrical digital data processing, input/output process of data processing, instruments, etc., can solve problems such as low yield rate, bulky and expensive optical control touch screen, and low yield rate of panel manufacturing, and achieve The effect of overcoming the bottleneck of processing size, broad touch application space, and simplifying processing procedures

Active Publication Date: 2012-09-12
姜洪波
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In terms of manufacturing process, the existing manufacturing process is basically a "sheet by sheet" ("sheet-to-sheet") process. First, the film-formed ITO film and ITO glass are used to prepare electrode patterns through yellow light process, dry or wet etching. Unnecessary film-forming parts are etched away, so that the waste of conductive materials is serious
Moreover, wet etching has problems such as non-environmental protection, complicated process, and low yield, while dry etching has high technical threshold, low production efficiency, and expensive production equipment
There are nearly 50 processes in this process, and a single machine operation requires a large amount of manpower and low yield
Moreover, the production base material of the prior art is a rigid glass base material. Coupled with the limitations of the above process methods and equipment, large-scale mass production cannot be realized. The manufacturing yield of panels larger than 10 inches is low, and large-size panels are basically bulky and expensive. The light-controlled touch screen is the mainstay, and the development is greatly restricted

Method used

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  • Method for manufacturing flexible touch screen and equipment for manufacturing touch electrode coil
  • Method for manufacturing flexible touch screen and equipment for manufacturing touch electrode coil
  • Method for manufacturing flexible touch screen and equipment for manufacturing touch electrode coil

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Such as figure 1 with 2 As shown, the transparent and insulating plastic substrate roll adopts PET (polyethylene terephthalate) roll film with high transmittance and low haze, and the first PET roll film passes through the unwinding machine 1. Tension control Equipment 2, corona equipment (not shown in the figure) and traction device 3, the carbon nanotube ink that is dispersed in advance is printed by predetermined pattern by printing unit A1 (can adopt inkjet printing, gravure printing, flexo printing, nano imprinting Printing method) on the surface of PET, printing positioning marks at the same time, and then drying in an oven to form the first transparent conductive electrode pattern; then synchronously online through the printing unit B1 to transfer the conductive silver paste or copper nano paste to the photoelectric eye or CCD image sensor 9 Tracking and positioning marks are overprinted (inkjet printing, gravure printing, silk screen printing, nanoimprinting) a...

Embodiment 2

[0060] Such as Figure 4 As shown, the transparent and insulating plastic substrate roll adopts a PET (polyethylene terephthalate) roll film with high transmittance and low haze, and the PET roll film passes through an unwinding machine 101 and a tension control device 102 , corona equipment (not shown in the figure) and traction device 103, the carbon nanotube ink that is dispersed in advance is printed respectively by predetermined pattern by printing unit E1 (can adopt roll-to-roll inkjet printing, gravure printing, flexo printing, nano Printing methods such as embossing) on ​​the front of PET, printing positioning marks at the same time, and then drying in an oven to form the first transparent conductive electrode pattern; then synchronously online through the printing unit F1 to print conductive silver paste or copper nano paste by photoelectric eye or The CCD image sensor 109 tracks the positioning marks and overprints (roll-to-roll inkjet printing, gravure printing, rol...

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Abstract

The invention provides a method for manufacturing a flexible touch screen and equipment for manufacturing a touch electrode coil for the flexible touch screen. A transparent conductive electrode pattern and an electrode lead of the touch screen are directly printed on the surface of a transparent insulated plastic substrate in a coil-to-coil manner. Compared with a traditional lithography process and dry-wet method etching manufacturing process for the touch screen, the method disclosed by the invention has the advantages that processing procedures of the touch screen are greatly simplified, the cost is reduced and the yield is increased; and in addition, the bottleneck that the processing size is limited is overcome and the flexible touch screen with large size can be manufactured, so that the touch screen can be applied to and popularized in the novel fields in a wide range.

Description

technical field [0001] The invention relates to the technical field of touch screens, in particular to a method for preparing a flexible touch screen and a device for preparing a touch electrode coil for a flexible touch screen. Background technique [0002] At present, the touch screen is a good human-computer interaction tool to replace the mouse, but the existing traditional touch screen technology is mostly made of glass substrates, which is limited to the application of mobile phone panels and small industrial control panels, and it is not possible to mass-produce touch screens larger than 10 inches at low cost. , It is impossible to realize mass production of large-size touch screens. At present, the homogeneity of small and medium-sized touch panels in the industry is serious, the manufacturing yield is low, and the constraints of process technology keep the cost high. [0003] The traditional touch screen (such as capacitive touch screen) manufacturing process has e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041G06F3/044
Inventor 姜洪波吴鹏马振江
Owner 姜洪波
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