touch screen display working.The OTI coating of the resistive touch screen is relatively thin and easily brittle. If it is coated too thick, it will reduce light transmission and form internal reflection and reduce sharpness. Although an additional thin plastic protective layer is added outside the OTI , it is still easily damaged by sharp objects. Destruction; and because it is often touched, small cracks or even deformation of the surface layer OTI will occur after a certain period of time. If one of the outer layer OTI is damaged and broken, it will lose its role as a conductor and the life of the touch screen will not be long. However, the resistive touch screen is not affected by dust, water, and dirt. This touch screen can work in harsh environments, but has poor touch and light transmission, and is suitable for occasions with gloves and direct touch by hand.

touch screen display working.The OTI coating of the resistive touch screen is relatively thin and easily brittle. If it is coated too thick, it will reduce light transmission and form internal reflection and reduce sharpness. Although an additional thin plastic protective layer is added outside the OTI , it is still easily damaged by sharp objects. Destruction; and because it is often touched, small cracks or even deformation of the surface layer OTI will occur after a certain period of time. If one of the outer layer OTI is damaged and broken, it will lose its role as a conductor and the life of the touch screen will not be long. However, the resistive touch screen is not affected by dust, water, and dirt. This touch screen can work in harsh environments, but has poor touch and light transmission, and is suitable for occasions with gloves and direct touch by hand. IQTouch K interactive touch screen feature 20-point touch and dual system -- Android 8.0 system and optional OPS Windows 10Pro system. Its 4K UHD resolution facilitates presentations and collaboration. With optional multi-screen casting software, IQClass 6.0 and installation-free IQClass Plus software, IQTouch K Series can help create an interactive and collaborative teaching atmosphere in class.