How All Waves TOUCH technology works

Capteurs piézo-éléctriques

1.Sensors bonded to the structure generate vibration waves.

Réflexion des ondes par contact

2.These waves propagate through the structure and are reflected by any object in contact.

Algorithme déterminant l'emplacement des points de contacts et la pression

3.Our patented algorithm analyses the reflected waves and determines the coordinates of contact points and the contact pressure applied to them.


Make any structure tactile

All Waves TOUCH technology is the only technology that makes tactile large, or curved structures or structures with a complex geometry. It is based on the propagation of “guided” ultrasonic vibration waves in the structure. These waves have the particularity of being able to propagate over several meters without attenuation.


Increased sensitivity to any type of contact

Once instrumented, the structure becomes sensitive to any type of contact, whether a finger (with or without glove), a sharp object (pencil, stylus), a cup, etc. An object in contact the structure modifies the behaviour of the vibratory waves that propagate there. The localization of the contacts is instantaneous since the vibration waves travel in the structure at a speed of several kilometers per second.


Easy integration and robustness

Our tactile technology is not affected by the presence of liquid and solid contaminants or scratches on the surface. The sensors are installed on the edge of the structure, which allows maximum transparency to be maintained while ensuring minimum space requirements. The sensors can be bonded directly to the structure or integrated inside it. No need for a controlled environment, this operation can be done in the factory.


Save costs

All Waves TOUCH technology is very economical. A small number of sensors allows any structure to be tactile.

Performance of tactile functionnality

All Waves TOUCH Capacitive Résistive IR Surface Acoustic Wave
Multi-touch ++ ++ ++ + +
Sensibility Very good Very good Bad Good Good
Contact type Every contact Finger, thin glove Every contact Every contact Soft contact (finger,
thin glove, soft stylet)
Transparency 100% 90% 75% 100% 100%
Robustness ++ + ++ ++
Durability ++ + ++ ++
Robust to surface contaminants Yes No Yes No No
Robust to scratch Yes Yes Yes Yes No
Robust to ambiant light Yes Yes Yes No Yes
Height profile Low Medium Medium High Low
Absolute contact pressure measurement Yes No No No No
Cost Low High Medium Low Low

Compatible surfaces

All Waves TOUCH Capacitive Résistive IR Surface Acoustic Wave
Classic screens Yes Yes Yes Yes Yes
Transparent screens/surfaces Yes No No Yes Yes
Opaque screens/surfaces Yes Yes Yes No Yes
Large surfaces Yes No No Yes No
Curved surfaces Yes No No No Yes