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Double-sided conductive film, film coating method and touch screen

A technology of conductive film and touch screen, applied in the field of optical film, can solve the problems of broken wire of silver paste and damaged conductivity, and achieve the effect of improving conductivity, improving light transmittance and reducing overall color difference

Pending Publication Date: 2020-11-03
BEIJING ZENITHNANO TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the silver paste coating method, the silver paste will be broken due to being too narrow, and the conductivity will be damaged

Method used

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  • Double-sided conductive film, film coating method and touch screen
  • Double-sided conductive film, film coating method and touch screen
  • Double-sided conductive film, film coating method and touch screen

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Embodiment Construction

[0030] The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. All other embodiments obtained by persons of ordinary skill in the art based on the embodiments in this application belong to the protection scope of this application.

[0031] This application aims to provide a double-sided conductive film with a new structure, using CU and CU alloy instead of silver paste as wiring, and using a low-resistance film layer with a resistance lower than 100 ohms to realize a double-sided low-resistance conductive film, and can Under the line width of 5um×5um, the conductivity is still guaranteed.

[0032] Such as figure 2 As shown, it is a structural diagram of the double-sided conductive film provided by the present invention, which specifically inclu...

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Abstract

The embodiment of the invention discloses a double-sided conductive film, a film coating method and a touch screen. The conductive film comprises a transparent base material, and a low-resistance conductive layer, a Cu layer and a protective layer which are sequentially laminated on two sides of the transparent base material, the protective layer is a Cu alloy layer or an Mo alloy layer; the low-resistance conducting layer is used for conducting electricity, and the resistance of the low-resistance conducting layer is not larger than 100 ohms. According to the technical scheme, the Cu is usedfor replacing silver paste, the Cu alloy is used as the protective layer, and through experimental verification, the conductivity of the Cu alloy can be guaranteed even if the line width * the line distance is 5 microns * 5 microns after etching.

Description

technical field [0001] The present application relates to the field of optical films, in particular to a double-sided conductive film and a touch screen. Background technique [0002] Printed silver paste wiring is mostly used in current capacitive touch screens, and its structure is as follows: figure 1 As shown, it includes a substrate layer (PET layer), a conductive layer (ITO) on both sides of the PET, and a silver paste layer on the outside of the conductive layer. The silver paste layer is coated and printed on the conductive layer, and then etched to form silver paste traces. The exposed area after etching is used as the display area of ​​the touch screen. The silver paste wiring part is covered to form our common frame, such as the black frame of the two layers of the mobile phone. [0003] Obviously, in order to expand the display area, the narrower the wiring part, the better, but at the same time, the conductive performance of the wiring must be ensured. In th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01B5/14H01B13/00G06F3/041G06F3/044
CPCH01B5/14H01B13/0026G06F3/044G06F3/0412G06F2203/04103G06F3/041
Inventor 张玉春仲树栋
Owner BEIJING ZENITHNANO TECH CO LTD
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