Unlock instant, AI-driven research and patent intelligence for your innovation.

Transparent conductive film, manufacturing method thereof, and touch device using the transparent conductive film

A technology of transparent conductive film and manufacturing method, which is applied in the direction of electrical digital data processing, input/output process of data processing, instruments, etc., and can solve problems such as large thickness drop, unevenness of visible area, creases of visible area, etc.

Active Publication Date: 2016-08-31
ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is a large thickness difference between the induction conductive layer and the electrode leads in most transparent conductive films, especially in the gap formed between two adjacent connecting parts.
The gap between the two connecting parts makes it easy for the transparent conductive film to produce creases at the edge of the visible area. After the transparent conductive film is laminated to form a touch device, unevenness will appear at the edge of the visible area.
Moreover, due to the existence of thickness gaps, the optical path of the reflected light changes, resulting in the phenomenon of "ghosting" in the visible area, which makes the appearance and display effect of the touch device poor.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Transparent conductive film, manufacturing method thereof, and touch device using the transparent conductive film
  • Transparent conductive film, manufacturing method thereof, and touch device using the transparent conductive film
  • Transparent conductive film, manufacturing method thereof, and touch device using the transparent conductive film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0064] ITO was plated on the substrate by magnetron sputtering to obtain an ITO film with a thickness of 10 nm. The acid-resistant etching method is used to etch the aging-treated ITO film. The specific process is: attach a layer of acid-resistant film to the ITO film, and then perform UV (ultraviolet) drying. After UV drying, the acid-resistant film is acid-resistant and not alkali-resistant. First pickling and then alkali cleaning to etch out the required in-plane ITO conductive lines, and form a sensing conductive layer including a plurality of sensing electrodes arranged at intervals on the substrate.

[0065] The silver paste is screen-printed on the substrate by screen printing, and the electrode leads and electrode blocks are obtained directly and synchronously (the models of the electrode leads and electrodes are pre-set on the screen). Then the silver paste is baked, so that the silver paste is fixed and shaped, and a transparent conductive film is obtained. Wherein,...

Embodiment 2

[0067] ITO was plated on the substrate by vacuum evaporation to obtain an ITO film with a thickness of 15 nm, and the substrate coated with the ITO film was subjected to aging treatment. Then, the silver paste is screen-printed onto the substrate coated with the ITO film by screen printing to obtain an intermediate product of the transparent conductive film, and the intermediate product is subjected to UV drying.

[0068] The laser etching method is used to simultaneously carry out laser etching on the ITO Film and the silver wiring, and laser out the required in-plane ITO conductive lines, electrode leads and electrode blocks. Then the silver paste is baked, so that the silver paste is fixed and shaped, and a transparent conductive film is obtained. Wherein, the thickness of the electrode leads and the electrode blocks is 2 microns.

Embodiment 3

[0070] ITO was plated on the substrate by magnetron sputtering to obtain an ITO film with a thickness of 20 nm. The acid-resistant etching method is used to etch the aging-treated ITO film. The specific process is: attach a layer of acid-resistant film to the ITO film, and then perform UV (ultraviolet) drying. After UV drying, the acid-resistant film is acid-resistant and not alkali-resistant. First pickling and then alkali cleaning to etch out the required in-plane ITO conductive lines, and form a sensing conductive layer including a plurality of sensing electrodes arranged at intervals on the substrate.

[0071] The silver paste is screen-printed on the substrate by screen printing, and then the silver traces are etched by laser etching, and the electrode leads and electrode blocks are obtained indirectly and synchronously. Then the silver paste is baked, so that the silver paste is fixed and shaped, and a transparent conductive film is obtained. Wherein, the thickness of t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A transparent conductive film, comprising: a substrate, including a visible area and a frame area; a sensing conductive layer, arranged in the visible area, including a plurality of sensing electrodes arranged at intervals; electrode leads, arranged in the frame area, including a lead part and forming At the connection part at one end of the lead part, the electrode lead is electrically connected to the sensing electrode through the connection part, and the extension direction of the connection part is the same as the direction in which the plurality of sensing electrodes are arranged, the number of electrode leads is multiple, and the plurality of electrode leads are insulated from each other. The thickness of the electrode leads protruding from the surface of the substrate is greater than the thickness of the sensing electrodes protruding from the surface of the substrate; the electrode block is located between two adjacent connecting parts and is insulated from at least one of the electrode leads, and the electrode block protrudes from the surface of the substrate. The thickness is the same as that of the electrode leads protruding from the surface of the substrate. The above-mentioned transparent conductive film can effectively eliminate the ghost image in the window area. In addition, the present invention also provides a method for manufacturing a transparent conductive film and a touch device using the transparent conductive film.

Description

technical field [0001] The present invention relates to the technical field of touch devices, in particular to a transparent conductive film, a manufacturing method thereof, and a touch device using the transparent conductive film. Background technique [0002] As consumers have higher and higher requirements for electronic products, in order to effectively reduce the cost of touch modules and meet the market requirements for thinner and lighter terminal consumer electronics products, the touch industry has actively started G+F and G+F+ in the past two years. Production of F-structure capacitive touch devices. In more and more touch device products, product appearance has become the focus of more consumers, especially the visible area of ​​the touch device. [0003] A touch device generally includes a transparent panel, a touch sensing device and a display device. Wherein, the touch sensing device realizes touch sensing by means of a transparent conductive film. The trans...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/041
Inventor 徐安吴小燕方莹赵晓玲陈康
Owner ANHUI JINGZHUO OPTICAL DISPLAY TECH CO LTD