21.5" 4 Wire Resistive Touch Screen

Enriched by our vast industrial experience in importing trading and supplying of 21.5" 4 Wire Resistive Touch Screen in New Delhi, Delhi, India. Resistive touch screen is the preferred solution for low-cost applications. It consists of a conductive bottom layer (ITO Glass or Film) and a conductive top layer (ITO Film). The two layers are suspended by many very small spacer dots. When a certain point is touched, the top layer contacts the bottom layer and a voltage charged by the controller is applied to the bottom layer's electrodes. The coordinate X axis of the touch point can be detected by measuring the voltage value thru the top ITO layer and the coordinate Y axis of the touch point can be detected in the same way by changing voltage input to the top layer's electrodes.

Product Details:
Light Transmission : Greater than or equal 80
Scoring Life Expectancy : Greater than or equal 1.000.000
Storage Temperature : -20~+70 Less than or equal 90%RH
Operating Temperature : -10~+60 Less than or equal 90%RH
Construction : Film
Insulation impedance : Greater than or equal 20M Ohm (25V DC)
Linearity : Less than or equal 1.5
Size : 21.5"
Tail : FPC
Surface Hardness : 3H
Operating Force : 10g~100g
Working Voltage : 5.0V.Circuit gradeDC5V 1mA
No noted size common difference : (-+)0.20