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Touch input sheet and production method thereof

A touch input and production method technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc. It can achieve the effect of realizing mass production operation, improving adhesion and improving yield

Active Publication Date: 2013-11-20
ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the traditional touch input sheet production process, there are generally problems such as low yield rate of products, such as easy to cause scratch damage to the conductive pattern in the visible area when the photosensitive silver paste is exposed and developed, and the adhesion between the photosensitive silver paste line and the substrate It is poor and it is easy to cause the disconnection of the silver paste line in the subsequent process.

Method used

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  • Touch input sheet and production method thereof
  • Touch input sheet and production method thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0054] The transparent substrate uses a colorless and transparent ethylene terephthalate (PET) plastic film with a thickness of 50-125 μm, and forms ITO with a thickness of 10-30 nm as a conductive layer on its surface by sputtering. Aging treatment is carried out on the transparent substrate including the conductive layer by a high temperature of 140° C. to ensure that the stretch rate of the transparent substrate is within a normal range. Then, the conductive layer is processed by fully automatic printing to form the required conductive pattern in the visible area of ​​the transparent substrate. The specific process is: use screen printing to print the preset conductive pattern area on the conductive layer The acid-resistant polyester is cured by ultraviolet light, and the polyester is cured by ultraviolet light; the conductive layer is etched with HCl solution, and the conductive layer in the visible area with the area other than the preset conductive pattern is etched away,...

Embodiment 2

[0057] The transparent substrate uses a colorless and transparent polybutylene terephthalate (PBT) plastic film with a thickness of 50-125 μm, and forms ITO with a thickness of 10-30 nm as a conductive layer on its surface by sputtering. Aging treatment is carried out on the transparent substrate including the conductive layer by a high temperature of 140° C. to ensure that the stretch rate of the transparent substrate is within a normal range. Then, the required circuit pattern is formed in the visible area through the yellow light process. The specific process is: coating the negative photoresist on the entire surface of the conductive layer, and exposing the negative photoresist to the preset conductive pattern area by exposure. for curing; then use K 2 CO 3 Develop the negative photoresist with an organic solution to remove the uncured negative photoresist; use HNO 3 The solution etches the conductive layer, and etch away the conductive layer with areas other than the pr...

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Abstract

The invention relates to a touch input sheet comprising a transparent substrate, a transparent conductive film, a protective film, photosensitive sliver paste threads and an insulation film. The protective film is arranged on the transparent conductive film of the touch input sheet, so that conductive patterns in a visible area can be protected from scratch during the production process of the photosensitive sliver paste threads, or photosensitive sliver powder is prevented from remaining in the visible area to influence the properties of products. The photosensitive silver paste threads are covered with one insulation film, so that the photosensitive silver paste threads can be better adhered to the transparent substrate by edge area and disconnection or short circuit of the photosensitive sliver paste threads is prevented in the subsequent production process. Therefore, the produced touch input sheet allows for a narrow frame of a touch product, product yield can be increased greatly, and mass production of the process is realized. In addition, the invention relates to a production method of the touch input sheet.

Description

technical field [0001] The invention relates to the field of touch screen production, in particular to a touch input sheet and a production method thereof. Background technique [0002] With the rapid development of the touch industry, people's demand for the quality of touch products is getting higher and higher. On the one hand, it is required to be able to achieve precise positioning, rapid sensing, and multi-touch in terms of functions; on the other hand, it is required to have Features such as thinning and narrow bezels. In response to the high-quality requirements of the above products, emerging technologies such as In-cell, On-cell, laser laser, yellow light process and photosensitive silver process have emerged in the industry, all of which have guided the development trend of touch products to a certain extent. However, in the traditional touch input sheet production process, there are generally problems such as low yield rate of products, such as easy to cause scr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/041
Inventor 敖鹤唐根初唐彬陈靖东周志华
Owner ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
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