LCDs create their display with the manipulation of visible ambient light. In the absence of this light, we must add backlighting to make these LCD displays visible.
Capacitive LCD touch screens are often referred to as multi-touch screens, as users can often move over a screen, zoom in and out of an image with simple hand gestures. This is due to the capacitive’s sensitive nature.
TFT LCDs are becoming the norm for small-to-medium size displays in a variety of products within industrial, medical, POS and consumer applications. To pick the right interface, you need to understand them first.