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Double-sided conductive transparent film

A conductive transparent film, double-sided technology, applied in the field of conductive layer, can solve the problems that affect the display brightness, contrast and color, the light transmittance of the conductive film is not very high, and the power consumption of equipment increases, so as to achieve the improvement of yield rate and power consumption The effect of low volume and cost reduction

Inactive Publication Date: 2014-05-07
苏州胜利光学玻璃有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ITO material is expensive and the production cost is high; and limited by the coating temperature, ITO plating on the substrate cannot achieve low impedance, which is not conducive to making a large-area touch screen. High impedance capacitive touch screens will reduce performance and even drive IC will not be able to drive its normal operation
[0004] In addition, the light transmittance of the conductive film made of ITO is not very high, usually only about 80%-88%, which affects the brightness, contrast and color of the display Wait, when the light transmittance is low, if you want to see the screen clearly, you must increase the brightness, the power consumption of the device will inevitably increase, and the irritation to the eyes will also increase

Method used

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Embodiment 1

[0026] Embodiment 1: as figure 1 As shown, a double-sided conductive transparent film includes a protective layer 25, a conductive layer 24, a black layer 23, a bottom layer 3, a substrate 1, a bottom layer 3, a black layer 23, a conductive layer 24, and a protective layer 25 from bottom to top. , the substrate 1 is glass or a transparent plastic film, which includes a first surface and a second surface opposite to each other, and the first surface and the second surface of the substrate 1 are respectively coated by vacuum sputtering or evaporation coating Overlay the bottom layer 3, the bottom layer 3 is transparent SiO 2 Ink can be sprayed on the first surface and the second surface to form an ink pattern; then a black layer 23, a conductive layer 24 and a protective layer 25 are sequentially plated on the bottom layer 3, wherein the black layer 23 is a metal oxide layer, preferably oxidized The mixture of chromium and nickel oxide has a thickness of 40nm-100nm, and ...

Embodiment 2

[0028] Embodiment 2: the present invention provides another kind of double-sided transparent conductive film, and present embodiment is compared with embodiment 1, and protective layer 25 is changed into metal oxide layer, the mixture of preferred chromium oxide and nickel oxide, and it also can play To prevent oxidation, so that the naked eye can also observe from the other side.

[0029] In the present invention, a black layer, a conductive layer, and a protective layer are respectively plated on both sides of the substrate, and etched to form a metal grid, that is, both sides of the transparent film are metal grids, and the metal grid lines are used instead of ITO, which can not only reduce the impedance , reduce costs, and have good light transmittance; in addition, two films were used to be laminated to form a capacitive touch screen, but now only one film is required, which reduces the cost of one film and the adhesive used for bonding, and the cost is significantly r...

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Abstract

The invention discloses a double-sided conductive transparent film which comprises a basic material with a first surface and a second surface, wherein the first surface and the second surface are opposite to each other and are coated with grid line layers respectively; a grid unit formed between the grid lines in the grid line layers is a transparent region; each grid line layer sequentially comprises a black layer, a conductive layer and a protection layer from inside to outside, the black layer is a metal oxide layer, the conductive layer is a metal layer, and the protection layer is a metal alloy layer or the metal oxide layer used for preventing the conductive layer from being oxidized. According to the double-sided conductive transparent film, metal grids are arranged on the two sides of the film, so that the impedance and the cost can be reduced and the light transmittance is good; in addition, originally a capacitive touch screen is formed by fitting two films and now the capacitive touch screen is formed by only one film, so that one film and fitting glue are removed and the cost is remarkably reduced; moreover, the two films need to be aligned in position when fitting each other, and one double-sided film does not need to be subjected to the fitting process, so that the yield can be increased.

Description

technical field [0001] The invention relates to the technical field of a conductive layer, in particular to a transparent conductive film of a metal grid. Background technique [0002] Transparent conductive films are widely used in touch screens, flat panel displays, photovoltaic devices, electromagnetic shielding and other fields, especially in the field of capacitive touch screens. A touch screen is a sensing device that can receive input signals such as touch. The touch screen has endowed information interaction with a new look and is a very attractive new information interaction device. The development of touch screen technology has attracted widespread attention at home and abroad, and has become a rising high-tech industry in the optoelectronic industry. [0003] The transparent conductive film is a crucial component of the touch screen. At present, the conductive film of the touch screen is mainly formed on an insulating substrate by vacuum coating and pattern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/044
Inventor 王立新
Owner 苏州胜利光学玻璃有限公司
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