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Type of touch screen and characteristics of capacitive touch screen
Release Date:2022-10-18

With the development of science and technology, the LCD industry is also moving forward. Our mobile phones have increased from buttons and strokes to finger touch. The touch screen is added on the surface of the LCD screen to play the role of touch display. The touch screen works by using human current induction. This article focuses on what touch screen means, and what kinds and features touch screen has. I hope it will be helpful to you.
What are the types of touch screens?
The types of touch screen are mainly divided into capacitive touch screen and resistive touch screen. Capacitive touch screen is directly used by touching with fingers, such as mobile phones; The resistive touch screen must be directly contacted with a stylus, and must have a certain pressure, because it works through the current induction of the upper and lower ITOs caused by the pressure.
What are the characteristics of capacitive touch screen?
1. Capacitive touch screen only needs touch, and does not need pressure to generate signals.
2. Capacitive touch screen only needs to be calibrated once or does not need to be calibrated at all after production, while resistance technology requires conventional calibration.
3. The capacitive touch screen is used for a long time because the components in the capacitive touch screen do not need to be moved; In the resistive touch screen, the ITO film on the upper layer needs to be thin enough to be elastic, so that it can bend downward to contact the ITO film below.
4. Capacitance technology is superior to resistance technology in light loss and system power consumption.
5. Capacitive technology is wear-resistant, with long service life and low maintenance cost.
However, the capacitive screen also has certain disadvantages. When the ambient temperature and humidity change, and there is magnetic field interference in the environment, the capacitive screen will drift, resulting in poor touch. Resistance screen is better than touch screen in anti-interference performance, and its price and cost are lower than capacitor screen.