Tactile Graphics Revised: The Novel BrailleDis 9000 Pin-Matrix Device with Multitouch Input

Authors:
Thorsten Völkel;Gerhard Weber;Ulrich Baumann
Affiliations:
Computer Interaction Research Group, Technical University of Dresden, Dresden, Germany 01187;Computer Interaction Research Group, Technical University of Dresden, Dresden, Germany 01187;Metec AG Hasenbergstraße 31, Stuttgart, 70178
Venue:
ICCHP '08 Proceedings of the 11th international conference on Computers Helping People with Special Needs
Year:
2008

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Abstract

We describe the novel BrailleDis 9000 pin-matrix device. The refreshable device allows to present tactile graphics on a matrix of 60 times 120 pins. The pin-matrix device is made up of a newly developed type of vertical Braille module allowing for a compact assembly of all necessary components. Additionally, the pin-matrix device is touch sensitive and capable of detecting multiple points of contact. Using multitouch features, novel multimodal interaction cycles can be realized with the Braille display, such as a bi-manual sweep.