dsc touch screen lcd keypad white.This touch screen uses pressure sensing for control. The main part of a resistive touch screen is a resistive thin film screen that closely matches the display surface. This is a multilayer composite film. It uses a layer of glass or hard plastic flat plate as the base layer, and the surface is coated with a layer of transparent oxidized metal (transparent conductive (Resistance) conductive layer, which is covered with an outer surface hardened, smooth and scratch-resistant plastic layer, its inner surface is also coated with a coating, and there are many small (less than 1/1000 inch) transparent between them The isolation point separates the two conductive layers from each other. When a finger touches the screen, the two conductive layers come into contact at the touch point, the resistance changes, a signal is generated in both X and Y directions, and then it is sent to the touch screen controller. The controller detects this contact and calculates the position of (X, Y), and then operates according to the way of simulating a mouse. This is the most basic principle of resistive technology touch screen. The key to resistive touch screens is material technology. Common transparent conductive coating materials are:

dsc touch screen lcd keypad white.This touch screen uses pressure sensing for control. The main part of a resistive touch screen is a resistive thin film screen that closely matches the display surface. This is a multilayer composite film. It uses a layer of glass or hard plastic flat plate as the base layer, and the surface is coated with a layer of transparent oxidized metal (transparent conductive (Resistance) conductive layer, which is covered with an outer surface hardened, smooth and scratch-resistant plastic layer, its inner surface is also coated with a coating, and there are many small (less than 1/1000 inch) transparent between them The isolation point separates the two conductive layers from each other. When a finger touches the screen, the two conductive layers come into contact at the touch point, the resistance changes, a signal is generated in both X and Y directions, and then it is sent to the touch screen controller. The controller detects this contact and calculates the position of (X, Y), and then operates according to the way of simulating a mouse. This is the most basic principle of resistive technology touch screen. The key to resistive touch screens is material technology. Common transparent conductive coating materials are: 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.