4-WIRE RESISTIVE SCREENS

 The 4-wire Resistive Touch Screen is the preferred solution for low-cost applications. It consists of a conductive bottom layer of either glass or film and a conductive top film layer, separated by extremely small, transparent spacer dots. A voltage is applied across the conductive surface. When pressure from a touch is applied to the top layer, it is deflected and makes contact with the bottom layer resulting in a voltage drop. This change is detected by the controller. By alternating the voltage signal between the top layer and the bottom layer, the X and Y coordinates of the user’s touch are computed.

4- AND 8-WIRE TOUCH SCREENS WITH INTEGRAL MEMBRANE SWITCH

If you are looking for touch screen technology fully sealed to your bezel, we have the solution for you. Dawar’s 4- and 8-wire Resistive Touch Screens can be bonded to a full sheet of polyester or polycarbonate overlay. This graphic overlay could also be the graphic overlay of a membrane switch layer. This design eliminates the need for clumsy perimeter gaskets or thick bezel cutouts. It provides for a washable front surface and extra durability for the touch screen in harsh environments. A full ESD shield of ITO coating or a perimeter conductive ink or foil shield layer can also be added. Be sure to ask your Dawar Representative about this option.

BENEFITS