Principle of capacitive touch screen and what is the difference between capacitive touch screen and resistive touch screen part three

4. The difference between capacitive touch screen and resistive touch screen

Working principle: The capacitive touch screen is based on the principle of capacitance change, and the resistive touch screen is based on the principle of resistance change.

Touch mode: The capacitive touch screen adopts pressure-free touch mode and can be operated with just a light touch. Resistive touch screens require a certain amount of pressure to bring the two resistive layers into contact for positioning.

Touch Sensing: Capacitive touch screens can sense conductor contact without the need for true physical contact. Resistive touch screens require physical contact and can only sense conductive objects.

Sensitivity: Capacitive touch screens are more sensitive and only require a light touch when touching. Resistive touch screens require a certain amount of pressure, so their sensitivity is low.

Multi-touch: The capacitive touch screen supports multi-touch and can achieve a variety of gesture operations. Resistive touch screens can only achieve single-touch control.

Light transmittance: The capacitive touch screen has good light transmittance and will hardly affect the display effect. The resistive touch screen will affect the display effect and needs to be protected by adding a light-transmitting layer.

Summarize:

Capacitive touch screen and resistive touch screen are two common touch screen technologies. They are very different in terms of principles, structures and characteristics. Capacitive touch screens use changes in capacitance to achieve touch positioning. Their features such as high sensitivity, fast response speed, and multi-touch support make them widely used in modern smart devices.