Introduction to mainstream configurations of capacitive touch modules and cover
The key components of a capacitive touch screen are the glass cover and touch module This article introduces the G+G glass structure, AG glass process, and the mainstream configurations of CTP touch modules and their cover glass
With the continuous advancement of screen technology, users have increasingly high requirements for capacitive touch screens in the field of industrial control. The most critical parts of capacitive touch screens are the glass cover and touch module, and customers generally require G+G glass, full lamination technology, and AG glass for the glass cover. Take our recent customer order from Guangdong Dexingwei as an example. The customer needs to customize a touch module and glass cover for a 7.0-inch LCD screen. The final confirmed solution is: 7.0-inch LCD module, IC driver ST1633i, G+G structure, AG glass cover. Here we will focus on the G+G glass structure and AG glass cover plate, and why they have become the mainstream configuration of CTP touch modules and their cover plate glass.
Capacitive touch module and its glass cover plate
1、 G+G glass structure
We are talking about the G+G structure of capacitive touch screens here, which actually refers to the classification of its structural materials. The first letter represents the material of the lo With the continuous advancement of screen technology, users have increasingly high requirements for capacitive touch screens in the field of industrial control. The most critical parts of capacitive touch screens are the glass cover and touch module, and customers generally require G+G glass, full lamination technology, and AG glass for the glass cover. Take our recent customer order from Guangdong Dexingwei as an example. The customer needs to customize a touch module and glass cover for a 7.0-inch LCD screen. The final confirmed solution is: 7.0-inch LCD module, IC driver ST1633i, G+G structure, AG glass cover. Here we will focus on the G+G glass structure and AG glass cover plate, and why they have become the mainstream configuration of CTP touch modules and their cover plate glass.
Capacitive touch module and its glass cover plate
1、 G+G glass structure
We are talking about the G+G structure of capacitive touch screens here, which actually refers to the classification of its structural materials. The first letter represents the material of the lower touch module, while the second letter represents the material of the upper glass cover plate, which is bonded together with optical adhesive. Therefore, the G+G glass structure we refer to is actually a touch module made of lower glass material and an upper tempered glass cover plate. The G+G structure of the capacitive screen has the following advantages: excellent finger touch, smooth and hard finger movement across tempered glass, with a hardness of over 8H, no need to worry about scratches during use, and the flat surface will not sink. It also has strong corrosion resistance and can be easily removed even when in contact with dirt or grease in a timely manner. High transparency, tempered glass has a transmittance of over 90% after certain treatment, and its impact on the screen display effect can be ignored. High stability, tempered glass and touch module are bonded by optical adhesive, resulting in high vacuum and adhesion, which improves the stability and service life of the screen. In addition, there is a G+P structure, which consists of a touch module made of lower glass material and an upper PET film. Different from the G+G structure, the touch screen of the G+P structure has PET material on the surface of the screen that the fingers touch, which has a relatively poor hand feel and low screen hardness. However, its advantage lies in its lower cost.
2、 AG glass cover plate
AG glass cover plate, which is a special process for the tempered glass cover plate on the upper layer of the touch screen, has low reflection, reduces environmental light interference and screen reflection, with a transmittance of over 88%, minimizing the impact of the glass cover plate on the clarity of the screen image and meeting the standards of anti glare glass. According to users' requirements for screen clarity, AG glass cover technology is now widely used. For example, in the automotive field, AG glass technology is used for instrument panels and central control screens, which can maintain the color and clarity of the screen in strong light driving environments, reduce reflection, and achieve the best display effect. In addition, AG glass technology is widely used in medical equipment, industrial control equipment, electronic equipment, and outdoor equipment.
The above is an introduction to some mainstream configurations of CTP capacitive touch modules, as well as many other contents, such as bonding technology, cover glass screen printing, glass black frame processing, and so on. Hangzhou IDT Technology Co.,Ltd supports customized needs for touch modules and cover glass.
