What are touch screen panels made of?

In modern electronic products, touch screens have become the core component of human-computer interaction. Whether it's smartphones, tablets, industrial control devices, medical equipment, self-service terminals, or touch screens, they are everywhere, bringing convenience to life and greatly improving work efficiency. But what materials are touch screen panels made of? As professionals of Shenzhen Xinlilai Touch Technology Co., Ltd., we will uncover the material secrets of touch screens for you.
 

1. Basic material: glass panel
Normally, the outermost layer of a touch screen is tempered glass, which has high hardness, scratch resistance, and impact resistance, effectively protecting the internal structure. In some special application scenarios, anti glare or anti fingerprint coatings are also used to enhance the user experience.
 

2. Core sensing layer: conductive thin film
Under the glass, the key part of the touch screen is the sensing layer. Capacitive touch screens are currently the mainstream and commonly used type, and this layer is usually made of indium tin oxide (ITO) or other transparent conductive materials such as silver nanowires and metal grids. ITO has good transparency and conductivity, and can accurately detect changes in charge when touched by fingers.
 

3. Adhesive layer: Optical Adhesive (OCA)
In order to ensure that the materials of each layer are tightly adhered, optical adhesive (OCA) will be used for bonding in the touch screen. This adhesive not only has high light transmittance, but also reduces reflection and improves display effect. In addition, it can enhance the screen's impact resistance and prevent delamination or bubble formation.
 

4. Protective layer and additional functions
Some high-end touch screens will also add explosion-proof film, anti blue light coating or antibacterial layer to meet the needs of different applications. For example, medical equipment or outdoor industrial screens may use thicker protective layers to cope with harsh environments.
 

As a professional touch screen manufacturer, Xinlilai Touch Technology Co., Ltd. can customize touch screens of different materials according to customer needs. Whether it is high transmittance, flexible screen or anti-interference design, we can provide high-quality solutions. If you have any further questions about the material or craftsmanship of the touch screen, please feel free to consult at any time!