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Capacitive touch screen with flexible transparent conductive film and production method thereof

A transparent film, touch screen technology, applied in electrical digital data processing, data processing input/output process, instruments, etc., can solve the problems of non-curling, thick glass capacitive touch screen, heavy weight, etc., to reduce reflection, Widening the range of the transmission spectrum, the effect of small specific gravity

Active Publication Date: 2012-12-19
高邮市汇金新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of this technology is to provide a flexible, rollable, thin, light weight, small surface resistance, high light transmittance and low color touch screen for the problems of glass-type capacitive touch screen, such as thick thickness, heavy weight, light transmittance, and inability to curl. degree of capacitive touch screen

Method used

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  • Capacitive touch screen with flexible transparent conductive film and production method thereof
  • Capacitive touch screen with flexible transparent conductive film and production method thereof
  • Capacitive touch screen with flexible transparent conductive film and production method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] see figure 2 as shown,

[0028] 1. On both sides of the PET film substrate 1 with a thickness of 188 mm, acrylic resin is coated by wet printing. After the film is covered, it is dried with hot air and hardened by ultraviolet rays, and the first resin film layer 8 or the second resin film layer 9 with a thickness of about 5 Å is formed on both sides of the PET film substrate.

[0029] 2. On the surface of the first resin film layer 8, the first Nb with a thickness of 5 nm is formed by means of reactive magnetron sputtering coating 2 o 5 Thin film layer 2. Next, in the first Nb 2 o 5 The first Nb of 15nm is formed on the thin film layer 2 by reactive magnetron sputtering coating method 2 Ox (02 Ox (02 Thin film layer 4, in the first SiO 2 A first SiOx (0<x<2) thin film layer 5 with a thickness of 20 nm is formed on the thin film layer 4 . Finally, on the first SiOx (0<x<2) thin film layer 5 , a first ITO thin film layer 6 with a thickness of 25 nm was formed by ...

Embodiment 2

[0031] Embodiment 2 differs from Embodiment 1 in that: the first Nb 2 o 5 Thin film layer 2, the first Nb 2 Ox (02 Thicknesses of the thin film layer 4 , the first SiOx (0

Embodiment 3

[0033] Embodiment 3 differs from Embodiment 1 in that: the first Nb 2 o 5 Thin film layer 2, the first Nb 2 Ox (02 Thicknesses of the thin film layer 4 , the first SiOx (0

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PUM

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Abstract

The invention provides a capacitive touch screen and a production method thereof. The capacitive touch screen is flexible, curlable, thin, light, low in surface resistance, highly light-permeable and low in chroma. The capacitive touch screen comprises a flexible transparent film substrate. By reactive magnetron sputtering, a first Nb2O5 film layer, a first Nb2Ox(0<x<5) film layer, a first SiO2 film layer, a first SiOx(0<x<2) film layer and a first ITO (indium tin oxide) layer are sequentially deposited on the upper surface of the flexible transparent film substrate; and a second ITO film layer is arranged on the lower surface of the flexible transparent film substrate.

Description

technical field [0001] The technology relates to a capacitive touch screen, specifically, a flexible transparent capacitive touch screen. Background technique [0002] Conventional capacitive touch screens are coated with ITO film layers (coated conductive glass) on both sides of transparent conductive glass. The ITO film layer is used as the working surface, electrodes are drawn from the four corners, and the inner layer of ITO is used as a shielding layer to ensure a good working environment. . When a finger touches the surface of the touch screen, a coupling capacitor is formed due to the electric field of the human body and the ITO film layer on the surface of the conductive glass. For high-frequency currents, the capacitor is a direct conductor, so the finger sucks a small current. This current flows out of the electrodes on the four corners of the touch screen respectively, and the current flowing through these four electrodes is proportional to the distance from the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 王鲁南王建华窦立峰
Owner 高邮市汇金新材料科技有限公司
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