Differences in PCAP Touch Screen And IR Touch Screen

Differences in PCAP Touch Screen And IR Touch Screen

Using #touchscreen in Malaysia is wider now. Since 2016, Malaysians have begun to look at this technology even though it has long been introduced. However, many do not know the technology behind this touch screen because there are 2 technologies that run Projector Capacitive (PCAP) and Infrared (IR). What's the Difference of PCAP Touch Screen And IR Touch Screen?

Both of these technologies are the same but physically different. Let's see the difference:

Touch Screen Projector Capacitive (PCAP)

Projector Capacitive (PCAP), Touch Screen is mostly used on smartphones currently in the market. On each smartphone it uses PCAP technology as it works through a conductive that knows the change in the electromagnetic field with the touch of your finger. This PCAP does not require any bezel on your screen to run this touch screen technology. The price also quiet expensive than IR in the market. The way PCAP touch technology works is by fixing a sensor grid between a layer of cover glass and the LCD panel, so when a finger touches the glass the grid detects the coordinates of the touch point. 



Infrared (IR)

IR technology involves infrared light layers that lie around each touch screen bezel. These LED’s beam a signal across to the corresponding sensor on the other side forming an invisible grid. When the grid is broken by a finger, or other solid object, the sensors can detect the touch point. If one of the IR sensors is damaged, it will not be accurate if you want to touch an application. There is a weakness in this IR that can not be in a very bright light, can not function properly if it is present in the dirt around the bazel. The period of use is around 30 000 hours depending on the brand.