Projected Capacitive Touch Screen Solutions

Touch International designs and manufactures custom projected capacitive touchscreen sensors and assemblies for military, medical, aerospace, and industrial applications. Our engineering teams bring deep application knowledge across substrate options, stack-ups, cover glass, EMI shielding, and custom graphics to meet the specific demands of your program.

Touch International was also the first to engineer PCAP touch screens meeting aerospace industry EMI/RFI standards, a capability that extends across our military, medical, and industrial programs.

PCAP At A Glance

Multi-touch capable up to 10 points
Wear resistant and drift-free touch coordinates
Works with water
Flexible sensors contoured to curved surfaces
Works with bare finger, glove, or passive pen input
Up to 9mm glass or plastic cover lens

Multi-Touch PCAP Sensors

Custom multi-touch PCAP sensors for full-surface touch display applications across military, medical, aerospace, and industrial markets. Each sensor is fully customizable across substrate, stack-up, cover glass thickness, graphics, and EMI shielding to meet the performance, environmental, and regulatory requirements of your program.

Whether your program requires thick cover glass for rugged environments, pen input compatibility, or larger format displays, our engineering team specifies and builds to your exact requirements.

Digital Switch

Digital Switch is a PCAP-based touch technology designed for applications requiring defined, button-style touch inputs rather than full-surface touch. Using discrete touch cells, Digital Switch registers input through up to one-quarter inch of any non-conductive surface, making it well suited for sealed enclosures where a standard touch sensor cannot be exposed.

Fully sealable for waterproof performance, Digital Switch is designed for medical devices, industrial control instrumentation, and automotive applications. It works with bare and gloved finger input and requires virtually no maintenance.

OFX Series

OFX Series open-frame monitors with PCAP touchscreen technology are available for evaluation by qualified OEM development programs.

Explore the OFX Series →

Specifications How It Works

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PCAP Specifications


OPTICAL	Light Transmission:	Film/Film - 82% ± 3 (Typical)*
		Glass/Glass - 89% ± 3 (Typical)*
ELECTRICAL	Input Method:	Finger, Glove, Stylus
	Insulation Impedance:	Exceeds 20M Ohms, @10KV
	Operational Voltage:	D.C. 5V
MECHANICAL	Surface Hardness:	3H to 6H
	Touch Activation Space:	25-50g Force for Finger and Passive Stylus (Typical)
ENVIRONMENTAL	Operational Temperature:	-15 C ~ 70 C*
	Storage Temperature:	-40 C - 80 C*
	Humidity:	10% - 90% RH, Non-Condensing
	Touch Durability: (Estimate based on glass cover lens)	300 Million Touches in a Single Location (Electrically)
		250 Million Touches in a Single Location (Cosmetically)
	Flammability:	UL 94HB (Varies Based on Touch Screen Materials)*
	Chemical Resistance:	Tested for Resistance to Methyl Alcohol (50%)
		Ethyl Alcohol (50%), Toluene, Acetone, Benzene, Etc.
OTHER	Touch Screen Thickness (Glass):	0.7mm (Standard)
	Warranty:	5 Years

How PCAP Works

All PCAP designs share two essential features: a solid-state sensing layer, typically indium tin oxide (ITO), behind the touch surface, and no moving mechanical parts. This construction gives PCAP touchscreens their durability and long service life in demanding environments.

Mutual capacitance is the most widely used approach. Two conductive objects positioned close together can store an electrical charge. When a finger or conductive input approaches the surface, it disrupts the charge field between traces. The controller detects this change and registers a touch event.

To determine the exact touch location, the controller continuously scans each row and column in the sensor matrix one by one. By evaluating multiple intersections and combining their readings, the system triangulates the precise point of contact. This process delivers fast, accurate, and highly responsive touch performance across multi-touch and single-touch applications.