What is the differences of Infrared and PCAP touch screen ?
Infrared vs. Projected Capacitive ( IR vs PCAP )
A Infrared touch screen is made by IR tube. A capacitive touch screen consists of an insulator coated with a transparent conductor. Use the table below to determining which type of touch suits your project best.
Projected Capacitive (PCAP)
Same size Cost
Size bigger cost higher
Touch Screen Control Type
a finger , or other solid objects
Can sense proximity of finger.
Need to touch with thick gloves or an object?
Dependent on the conductive nature of human body. PCAP only works with thin gloves or a finger.
Dual and Multitouch
Dual or Multi-Touch Possible
False Touch Rejection
If any solid objects on screen , it will be as false action
Immunity to EMI
Good: Can be improved with additional options which increase cost.
with glass or without glass can work
Available on back of frame
Cover glass can be with imprinted black border and logo.
Immunity to Objects/Contaminants on Screen
Objects will effect touch function
If water gets on the screen, PCAP can mistake it for a touch.