Touchscreens have become ubiquitous in our daily lives, from smartphones to industrial control panels. However, not all touchscreens are created equal. Two common types are capacitive and resistive touchscreens. Let’s delve into their distinctions and how they function.
Commonly used in industrial electronics, ATMs, kiosks, and medical devices.
Relies on pressure applied to the screen.
Comprises two thin layers (typically PET film and glass) separated by spacers.
Conductive material (indium tin oxide) lines both layers.
Top and bottom layers have perpendicular electrodes (“bushbars”). Provides specific voltage readings when areas make contact.
In summary, capacitive touchscreens offer clarity, multi-touch support, and easy cleaning, while resistive touchscreens excel in challenging environments. Understanding these differences helps you choose the right touchscreen technology for your specific needs.
Projected capacitive touch screens (PCAP)
With PCAP panels, a capacitance is generated between finger, touch panel surface & ITO coating When scanned sequentially, these form X-Y co-ordinates with differing capacitance levels between the layers providing the data to enable accurate recognition of the area touched on panel;
Projected capacitive touchscreens are commonly used for smaller screen sizes, PC tablets, mobile phones, hand-held instruments, Electronic books, GPS, information terminals, gaming machines etc.
Keyflex Capacitive touchscreens can sense specific touch locations. Capacitive touchscreens do not require force to be applied to the screen’s surface for activation. Capacitive touchscreens are resistant to scratches and abrasion while leaving the responsiveness of the touch screen unaffected. Capacitive touchscreens are ideal for multi touch applications. The display can recognize more than one point of contact commonly seen such as pinch-to-zoom in or out.
Resistive touch screens can be provided with or without a surrounding front decal. Resistive touch screens offer an excellent and cost effective solution for data input in many applications. Our resistive touch screens can be supplied with either a gloss or an antiglare finish. Resistive touchscreens are ideal for applications where the equipment is not used in harsh environments They can eliminate the need for keyboards and pointing devices.
