Manufacturing method of capacitive screen

Abstract

The invention provides a manufacturing method of a capacitive screen. The manufacturing method includes the steps that first, a cutting groove is manufactured in predetermined position of sheet glass, a toughened layer is machined on each of the two faces, provided with the cutting groove, of the sheet glass, and the predetermined position is a non-functional area beyond a functional area of the capacitive screen; second, the toughened layer on one face is covered with an insulating layer, and one face, towards outside, of the insulating layer is a smooth plane; third, the insulating layer is covered with a conductive layer, and the conductive layer is used for manufacturing a circuit pattern of the functional area of the capacitive screen; fourth, an electrode lead electrically connected with the circuit pattern is arranged on the periphery of the circuit pattern; fifth, the semi-finished product obtained in the fourth step is cut into a plurality of small blocks along the cutting groove, the diameter of a tool bit of a cutting tool is smaller than the width of the cutting groove; sixth, an FPC is attached to each face where the circuit pattern of each small block of the semi-finished product is located, and the FPCs are electrically connected with the electrode lead. The capacitive screen manufactured with the method is good in strength and shock resistance.

Description

technical field [0001] The invention relates to the field of touch screens, in particular to a method for manufacturing a capacitive screen. Background technique [0002] With the development of technology, touch screens are more and more widely used. For example, a large number of smart terminals such as mobile phones and computers use touch screens, and capacitive screens gradually replace resistive screens due to their excellent performance. The integrated capacitive touch screen is the preferred touch screen used by major manufacturers. At present, the production method of the integrated capacitive screen is mainly: first strengthen the large piece of white glass into strengthened glass, then electroplate on the strengthened surface to make the surface smooth, and then make the circuit pattern and electrode lead wire of the functional area of ​​the capacitive screen. Line, and then get a large capacitive glass. Then the large piece of capacitive glass is cut into small...

AI Technical Summary

Problems solved by technology

However, since the cutter head is in direct contact with the strengthened glass, some glass still has microcracks, which reduces the strength of the capacitive screen, and the process of microcorrosion is cumbersome, and the use of strong acid melt for edge corrosion processing is harmful to human health.

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