Capacitance touch screen and manufacture method thereof

Abstract

The invention discloses a capacitance touch screen manufacture method, which comprises the steps as follows: after a pattern is etched on a film, a guide wire is manufactured on the surrounding of the pattern by adopting a way of plating a metal film; and then the film is fit with an LENS. The metal guide wire manufactured by adopting the plating way has thickness between 0.3Mu m and 0.6Mu m, which is far smaller than the thickness of 10Mu m of silk-screen silver paste, thus being capable of reducing bad bubbles caused by large thickness during fitting. The guide wire manufactured by the capacitance touch screen manufacture method by adopting the way of plating has fine and uniform lines, which are far higher than that of the silk-screen silver paste, and has good resistance uniformity, thus greatly improving the performances of the touch screen. The distances between the silk-screen silver paste lead wires of the prior art are usually about 80Mu m due to the limitation of a silk-screening technology, however, the distances between the lead wires manufactured by adopting the plating method can be reduced to be 25Mu m, thus having a larger touch visual area on the touch screen with the same size. The invention also discloses a capacitance touch screen.

Description

technical field [0001] The invention relates to a touch screen, in particular to a capacitive touch screen and a manufacturing method thereof. Background technique [0002] Currently, touch screen technology is developing vigorously. Among them, the touch screen technology includes a capacitive touch screen, see figure 1 , figure 2 , the existing capacitive touch screen with film structure is to etch the ITO pattern on the film, and then use the silk screen silver paste method to make the electrode around the ITO pattern. The thickness of the silk screen silver paste is about 10 μm. Bonded into a capacitive touch screen. When the finger touches the surface of the touch screen, a certain amount of charge will be transferred to the human body. In order to restore the charge loss, the charge will be replenished from the four corners of the screen. point position. This method of using silk screen printing silver paste to make wires in the prior art has the following disadv...

AI Technical Summary

Problems solved by technology

[0003] 1. The wire made of silk screen printing silver paste has a thickness of about 10 μm, and the air bubbles are caused by large thickness when laminating;

[0004] 2. The wire lines made of silk screen silver paste are not uniform and fine enough, and the resistance uniformity is not good, which affects the performance of the touch screen;

[0005] 3. Due to the limitation of silk screen printing technology, the distance between wires made of silk screen silver paste is generally about 80 μm, which makes the touch viewing area on the touch screen smaller

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