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Capacitive Touch Screen Process Introduction

09.26.2023

Capacitive touch screen is one of the common touch screen on industrial equipment, capacitive touch screen technology is also in the process of technological progress updates, the mainstream structure of the current market process G + F, G + F + F, G + G, G + P these four, today I would like to talk about the details of their four processes.

G is on behalf of GLASS, that is, surface tempered glass, these four processes, the main difference is the second layer of the process, its first layer are surface tempered glass

1. G + F Structure

G + F structure of capacitive touch screen, in addition to a layer of surface tempered glass, F is coupled with a layer of FILM film material. That is, the glass cover + OCA + Film Senser.

Glass Cover: can play a role in protecting the screen and optimizing the surface texture, generally choose high strength, hardness, good light transmission tempered glass material.

OCA: A solid optical adhesive with good adhesion and light transmission, used for lamination between glass cover and Film Senser.

Film Senser: Senser made of FILM film, is the signal function layer of capacitive screen, transmitting touch signal, with which touch function can be realized.

The main application of G+F structure: low cost solution for products below 3.5 inch.

2. G+F+F Structure

G + F + F structure of capacitive touch screen, the first layer is also tempered glass, the difference is the addition of two layers of FILM film material. The difference with the G + F structure is the addition of an extra layer of Fim Senser, G + F + can achieve multi-touch, and the screen can be thinner, the cost will also be higher than G + F.

3. G+G Structure

G + G structure of capacitive touch screen, is GLASS + GLASS, the first layer is tempered glass, plus a layer of glass Senser.

It is the biggest difference with the G + F structure, is the use of glass Senser.

G + G capacitive touch screen features: corrosion resistance, smooth handling, hard and wear-resistant, high light transmission, good reliability. As the surface cover is also tempered glass, its surface is very hard, the hardness can reach more than 8H, the prevention of scratches is excellent.

4. G+P Structure

G + P structure of capacitive touch screen, the first layer is tempered glass, plus a layer of PC material touch layer.

G + P capacitive features: low cost, simple process. Disadvantages: sluggish control, not wear-resistant, poor light transmission, corrosion resistance, poor reliability.

The above is the introduction of the four structures of the process, each structure has its own advantages and disadvantages, clear demand according to the project application to choose the right capacitive touch screen technology products, if necessary, you can choose to open mold custom capacitive touch screen.