This article explains the different types of Elo PCAP touch sensors

PCAP is available in many different variations, each with specific costs and functional outcomes. The core design of PCAP begins with two grids of conductive traces patterned vertically and horizontally for X and Y axes, laminated together with a glass cover layer. An oscillating frequency electronic signal creates an electric field which projects through and above the glass. A finger (or capacitive object) touch disturbs the electric field and the controller interprets this to pinpoint the touch location. Multiple simultaneous touches can be detected. Variations in stackup constructions of PCAP relate to the different methods by which the conductive grid is created and applied to glass or plastic film. The availability of numerous PCAP constructions and conductive trace material options can make narrowing in on the right solution for your application challenging. To ensure the best performance and lowest maintenance and failure rates, customers must choose a PCAP variant proven to work in their intended application. 

• What is Elo Pro-F technology?
• What is (Elo Pro-F and Pro-M) PCAP GFF (Glass, Film, Film) Dual Film Constructions?
• What is (Elo Pro-G) PCAP Glass Constructions 2GS, and 3GS?

Learn more about Elo's PCAP technologies in the Elo PCAP White Paper