4-Wire 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
Specificaiton :
1.Surface Hardness: 3H
2. Optical Clarity: 80 %
3 Operating Temperature : -10C ~ 60C
4 Endurance Test strikes : Over 1 million
5 Operating Voltage : DC5V
6 Resistance: 200 Om ~ 900 Om
7 Linearity : <1.5%
8 Faceplate Surface : Anti-glare coating
9 Operation Pressure : 15 ~ 70g
10 Storage Temperature : 20C ~ 70C
11 Message Noise : 5 m sec ~ 15 m sec
12 Operating Current : 5mA ~ 25mA
13 Isolation Resistance : 20M Om and up at DC25V |
Price:
Please connect with usbuy |
