PROJECTED CAPACITIVE (PCAP) TOUCH SCREENS

WHAT ARE PCAP TOUCH SCREENS?

Custom designed projected capacitive (PCAP) touch screens deliver pinpoint accuracy with multi-touch functionality. Used in a variety of industries, ranging from medical and industrial to consumer applications and military, Nelson-Miller’s PCAP touch screens are offered at different pricing points in order to best meet a wide range of budgets.

Although capacitive touch screens have been around since the 1970s, the recent explosion in the popularity of smart phones has brought projected capacitive touch technology to the forefront of touch screen technology. Whether your project requires single touch or multi-touch with gesture capabilities, Nelson-Miller’s customized capacitive touch screen technology is sure to deliver an interactive solution for your unique touch screen needs.

HOW DOES PROJECTED CAPACITIVE TOUCH TECHNOLOGY WORK?

In most cases, projected capacitive touch sensors are made up of three major components: the sensor glass, cover glass, and flexible printed circuit with controller. The sensor glass is made up of a series of electrodes, composed of a transparent conductive coating, that are configured into rows and columns. Each electrode is routed back to a connected point where the circuit can be bonded. The flexible printed circuit typically contains the controller for the touch sensor.

The cover glass buries the electrodes within a stack of lamination, and serves as a dielectric between your touch and the electrodes of the sensor glass. The cover glass also serves as a barrier layer- protecting the sensitive electrodes from environmental and human damage.

By using complex algorithms to pull a small charge from the electrodes, the controller can determine the exact location of your touch. As a result, when your finger touches the surface of the cover glass, the controller can scan and monitor the electrodes it produces.

BENEFITS OF A PROJECTED CAPACITIVE TOUCH SCREEN

The benefits of projected capacitive touch technology are vast. By using projected capacitive touch screen technology as your preferred touch-screen solution, you’ll be using a wear resistant touch screen that works with water and has exceptional optics. All projected capacitive touch screens offered by Nelson-Miller can operate in environmental extremes, and work well with fingers, gloves, or any type of stylus.

Used in a variety of applications, projected capacitive touch screens are often used in hand-held devices, GPS systems, tablet PCs, defibrillators, glucose meters, and IV pumps. If you’re interested in custom projected capacitive touch screens, Nelson-Miller can customize a touch screen solution  for you.

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