Manufacturing method of touch screen with IR induction zone

Abstract

The invention provides a manufacturing method of a touch screen with an IR induction zone, and belongs to the technical field of touch screens. The problems that in the prior art, process steps are complex and the manufacturing cost is high are solved. The manufacturing method of the touch screen with the IR induction zone includes the steps of A, preliminarily machining a glass cover plate, wherein the glass cover plate is selected, a display zone and a non-display zone are designed on the back face of the glass cover plate, and a black ink layer is attached to the non-display zone; B, curing the black ink layer, wherein the glass cover plate manufactured in the step A is baked; C, manufacturing the IR induction zone, wherein the IR induction zone is designed in the non-display zone on the back face of the glass cover plate and subjected to laser etching treatment, namely, a plurality of small round light-transmitting holes are etched in the black ink layer in the IR induction zone, and a touch screen with the IR induction zone is preliminarily formed; D, performing discharging, wherein the manufactured touch screen is cleaned, and the finished product is discharged. According to the manufacturing method, only a few steps are needed, time is short, material consumption of the manufacturing process is small, and cost is low.

Description

technical field [0001] The invention belongs to the technical field of touch screens, and relates to a manufacturing method of a touch screen with an IR sensing area. Background technique [0002] At present, smart phones are all operated by touch screen, and in order to avoid misoperation when the face touches the screen of the phone during a call, general smart phones have IR (infrared ray) sensing function. The non-display area on the back of the glass cover of the mobile phone touch screen is covered with a covering ink layer, and an IR hole is arranged on the covering ink layer, and an IR ink layer is covered on the covering ink at a position corresponding to the IR hole. The IR ink layer can selectively transmit infrared light while shielding unwanted light, so that during a call, the IR ink senses the face and directly turns off the phone screen. The existing touch screen manufacturing process is cumbersome, and requires multiple printings and baking, which requires ...

AI Technical Summary

Problems solved by technology

[0004] The above-mentioned touch screen replaces the traditional screen printing method by pasting the IR film on the IR hole. Although it can solve some disadvantages of the printing method, because the IR film is pasted through the optical adhesive layer, it is easy to use in the follow-up. Edge warping, falling off, etc. occur during the process, which affects subsequent production

In addition, in the above technical solution, IR film is used, and IR ink layer is attached to both sides of the IR film. However, due to the special function of IR ink, the ink is relatively expensive, and the printing process is relatively complicated. The IR ink layer is prone to wrinkles, and the printing accuracy Not enough, the manufacturing cost of the touch screen is still high

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