An 8.0-inch rectangular touch screen is a commonly used display component. The following presents a detailed account from multiple aspects, namely its principle, type, and application scenarios2:
Working Principle
Capacitive Touch Screen2: It operates on the principle of electrostatic induction. The screen is constructed from two layers of transparent conductive materials. When a finger touches the screen, it causes a change in the electrostatic field, generating a touch signal that is then recognized by the controller.
Resistive Touch Screen: This type functions based on the principle of pressure sensing. Comprising two layers of conductive films with a small gap in between, pressure applied to the screen causes the two layers to make contact, altering the resistance value. The controller calculates the touch position based on the change in resistance.
Characteristics and Applications
Capacitive Touch Screen
Advantages: It offers high touch sensitivity, supports multi-touch functionality, and provides a good visual experience with high clarity and brightness.
Applications: It is widely used in various fields such as smartphones, tablets, and touchscreen monitors.
Resistive Touch Screen
Advantages: It is relatively inexpensive, highly durable, and can be operated with gloves or a stylus.
Applications: It is commonly used in industrial control equipment, ATMs, and other environments where high precision is not required.
