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Manufacturing process of FF touch screen

A production process and touch screen technology, applied in the input/output process of data processing, instruments, electrical digital data processing, etc., can solve the problems of high product cost, low yield, cumbersome printing and processing, etc.

Pending Publication Date: 2020-12-22
东莞探未光电有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the resistive touch screen mainly uses the outer layer of PET to print black ink, the middle layer of ITO film is printed with silver paste circuit to form the upper circuit, and the lower layer of ITO glass is printed with silver paste circuit to form the lower circuit. These three layers are bonded together by OCA or double-sided adhesive , to realize the function of touch screen, generally there are 57 layers in the structure, and the printing process of each layer is cumbersome, the process is complicated, the product cost is high, and the yield rate is low; in addition, the PET layer in the touch screen usually uses polyethylene terephthalate (PET) film, PET film is made of polyethylene terephthalate as raw material and stretched

Method used

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  • Manufacturing process of FF touch screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A manufacturing process of an FF touch screen, comprising the following steps:

[0028] (1) First, electroplate or coat a layer of ITO conductive layer on the back of the PET material as the upper conductive material of the touch screen;

[0029] (2) The ITO conductive layer on the back of the PET material is etched with a preset conductive pattern and circuit by a laser etching machine;

[0030] (3) Then surface treatment is carried out on the front of the PET material, so that the surface hardness of the PET material reaches above 3H, and can support human finger touch writing;

[0031] (4) Finally, the conductive surface of the ITO film on the middle and lower layers of the touch screen is facing upwards, and the middle is bonded with transparent optical adhesive OCA, so that an FF touch screen with a cover effect can be formed.

[0032] The raw materials of the PET material in the step (1) include the following components by weight: 70 parts of PET, 6 parts of glas...

Embodiment 2

[0037] A manufacturing process of an FF touch screen, comprising the following steps:

[0038] (1) First, electroplate or coat a layer of ITO conductive layer on the back of the PET material as the upper conductive material of the touch screen;

[0039] (2) The ITO conductive layer on the back of the PET material is etched with a preset conductive pattern and circuit by a laser etching machine;

[0040] (3) Then surface treatment is carried out on the front of the PET material, so that the surface hardness of the PET material reaches above 3H, and can support human finger touch writing;

[0041] (4) Finally, the conductive surface of the ITO film on the middle and lower layers of the touch screen is facing upwards, and the middle is bonded with transparent optical adhesive OCA, so that an FF touch screen with a cover effect can be formed.

[0042] The raw material of PET material in the step (1) comprises the following components by weight: 80 parts of PET, 70 parts of glass fi...

Embodiment 3

[0047] A manufacturing process of an FF touch screen, comprising the following steps:

[0048] (1) First, electroplate or coat a layer of ITO conductive layer on the back of the PET material as the upper conductive material of the touch screen;

[0049] (2) The ITO conductive layer on the back of the PET material is etched with a preset conductive pattern and circuit by a laser etching machine;

[0050] (3) Then surface treatment is carried out on the front of the PET material, so that the surface hardness of the PET material reaches above 3H, and can support human finger touch writing;

[0051] (4) Finally, the conductive surface of the ITO film on the middle and lower layers of the touch screen is facing upwards, and the middle is bonded with transparent optical adhesive OCA, so that an FF touch screen with a cover effect can be formed.

[0052] The raw materials of the PET material in step (1) include the following components by weight: 90 parts of PET, 10 parts of glass f...

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Abstract

The invention relates to the technical field of touch screen manufacturing, in particular to an FF touch screen manufacturing process which includes the steps: (1) firstly, electroplating or coating an ITO (indium tin oxide) conductive layer on the back of a PET (polyethylene terephthalate) material to serve as an upper conductive material of a touch screen; (2) etching a preset conductive patternand a preset circuit on the ITO conductive layer on the back surface of the PET material through a laser etching machine; (3) carrying out surface treatment on the front surface of the PET material to enable the surface hardness of the PET material to reach more than 3H, and supporting touch writing of human fingers; and (4) finally, enabling the conductive surface of the ITO film on the middle and lower layers of the touch screen to face upwards, and adhering the ITO film in the middle through transparent optical cement OCA, so as to form the FF touch screen with the cover plate effect. According to the touch screen, the upper-layer material can reach the surface hardness of 3H or above, the PET material with the ITO conducting layer attached to the back face can also be taken into consideration, the PET material without the conducting layer in the prior art is replaced, and therefore two attaching procedures and two layers of materials can be reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of touch screen manufacturing, in particular to a manufacturing process of an FF touch screen. Background technique [0002] As an advanced electronic input device, the touch screen has many advantages such as simplicity, convenience, fast response, space saving and easy man-machine communication. Touch screen technology originated in the 1970s, and was mostly used in industrial or commercial equipment such as industrial computers and POS terminals in the early days. With the rapid growth of the information and electronic equipment product market, and the continuous improvement of people's requirements for the intelligence, convenience, and humanization of electronic products, touch screens, as an intuitive input interface, have been widely used. At present, the demand for touch screens mainly comes from consumer electronics products, such as mobile phones, PDAs, convenient game consoles, portable navigatio...

Claims

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Application Information

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IPC IPC(8): G06F3/041
CPCG06F3/041G06F2203/04103
Inventor 翟健全
Owner 东莞探未光电有限公司
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