DYNASENSE – UNIQUE MEMBRANE KEYPADS

Engineered to suit harsh outdoor applications

DYNASENSE resistive input technology is incredibly robust and requires no complicated electronic interface. The discrete membrane keypad is designed to create the ‘feather touch’ feel of capacitive touch switches at a fraction of the cost.

Using proprietary innovative nano particle conductive ink technology, DYNASENSE enables designers to create user interfaces with plastic overlay materials of thicknesses from 0.15 to 0.75 mm.

DYNASENSE allows a very sleek and seamless construction and has almost no mechanical movement. The maximum deflection is between 30 and 50 µm. As a consequence the lifetime can exceed 5 million switch cycles depending on the overlay material chosen.

The switching concept is basically emulated through lowering the electrical resistance, as in a traditional membrane switch. It is therefore easy to integrate and can be used with hardware platforms of existing membranes; no special integrated circuits or controller chips are required.

Despite its simplicity, DYNASENSE is the only technology that offers a wide operational temperature range from -40°C to +100°C thanks to the special graphene-based nano-carbon ink formulation that exhibits stable switch resistance over thermal fluctuations. These keypads are fully functional when actuated with gloves or other non-metallic actuators. They are ideal for medical and industrial settings or even harsh outdoor environments, where safety demands that workers wear hand protection.

Features

Advantages

Overlays up to 0.75 mm thickness

Vandal-proof

Can be actuated without contact with human skin/gloved actuation

Ease/safety of use

Continuous scrolling action requiring low actuation force

Readily accepted by user

No controller chips or firmware programming required

Seamless integration into existing platforms at lower costs than capacitive switches

Resistant to moisture and EMI

Reliable and durable for demanding environments

Examples of products

Operating patterns

Surface:	glossy or matt
Material:	PET EBA180 with nanoparticle pressure sensitive resistive ink technology
Lettering/Printing:	7-colour rear printed film with LED clear finish, display window with OCA (optically clear adhesive) technology

Resistive ink touch panel for measurement equipment

Application areas:	measurement technology
Surface:	glossy
Material:	PET EBA250 with nanoparticle pressure sensitive resistive ink technology
Lettering/Printing:	7-colour rear printed film with LED clear finish, display window with OCA (optically clear adhesive) technology

Resistive ink touch panel for use of rental bicycles

Application areas:	use of rental bicycles
Surface:	anti-glare glass
Material:	PC Lexan HP40S with nanoparticles and pressure-sensitive resistive ink technology
Lettering/Printing:	silk screen printing 3 colours