3MTM DST Sensor Technology
Unlike other solutions that recognize touch by the interruption of electrical fields, acoustic waves, optical fields, or infrared light, Dispersive Signal Technology recognizes touch by interpreting bending waves created in the overlay with a touch event. This approach helps eliminate performance issues associated with onscreen contaminants and surface scratches, and offers enhanced palm rejection.
Employing a glass substrate and piezoelectric transducers, bending waves radiate to the sensor edges and are detected by piezoelectric receptors in border area. Touch controller compute touch location based on algorithms or by use of signal comparison references.
3MTM DST: Key Points
- fast, accurate touch response
- operates with static objects or other touches on the screen
- unaffected by surface contaminants, such as liquids, dirt, dust and grime
- very good light transmission with anti-glare properties
- on-glass construction
- input flexibility from finger or stylus such as pencil, credit card, finger, or virtually any pointing stylus
- wide driver support and development