We know that touch screen can be divided into industrial touch screen, civilian touch screen and commercial touch screen according to the use, since the material of outer casing design is different. Ordinary or commercial liquid crystal displays cannot be used in industrial environments since some industrial environments are very harsh. The material of industrial touch display is all steel, and the material of touch screen panel includes ordinary iron plate, stainless steel and aluminum panel. Some with dustproof and shockproof function need to be special designed for special use. Then how to choose the right industrial touch display?
Industrial touch display is a kind of screen to use in industrial control machine and equipment. In order to meet the high environmental requirements, industrial touch screen need to be designed according to different environment requirements. For example, a wide temperature LCD screen produced by only a few foreign large manufacturers currently can be used in high temperature, strong interference, and strong vibration, of course, the price is relatively expensive. Usually industrial liquid crystal displays are classified different types according to different installation ways, such as embedded displays, rack-mounted displays, open displays, custom displays, flip-chip displays etc. According to the different performance characteristics of hardware, it can be divided into resistive touch screen, capacitive sensing touch screen, surface acoustic wave touch screen and infrared induction touch screen.
According to different use environments, reasonable configuration can be made for the applicable occasions of different industrial grade touch screens.
Four-wire resistive touch screen: this type is not afraid of dust, oil stains and photoelectric interference, but it is easy to be scratched. So, it is applicable to public places with fixed users, such as industrial control sites, offices, homes, etc.
Five-wire resistive touch screen: It has excellent sensitivity and light transmittance, long service life, not afraid of dust, oil pollution and photoelectric interference, so it is suitable for all kinds of public places, especially suitable for precision industrial control sites etc.
Capacitive sensing touch screen: Since the capacitance varies with temperature, humidity, or grounding conditions, its stability is poor and often drifts. It is afraid of electromagnetic field interference and drift, so it is not easy to use in industrial control places and places with interference. But it can be used for public information query that requires less precision, and needs frequent calibration and positioning.
Infrared induction touch screen: The resolution is low, but it is not interfered by current, voltage and static electricity, and is suitable for some harsh environmental conditions. And it is suitable for all kinds of public places, offices and industrial control sites that do not require very precise infrared rays and strong light interference.
Surface acoustic wave touch screen: It is pure glass material, and has best light transmission, long service life and good scratch resistance, so it is suitable for all kinds of public places. But it is afraid of long-term accumulation of dust and oil contamination, and it has higher environmental requirements.
