Reading Braille and Tactile Ink-Print on a Planar Tactile Display

  • Denise Prescher
  • Oliver Nadig
  • Gerhard Weber
Part of the Lecture Notes in Computer Science book series (LNCS, volume 6180)

Abstract

Reading characters by fingers depends on the tactile features of the medium in use. Braille displays were often found to be slower than Braille on paper. We study reading Braille on a novel planar tactile display by conducting three reading tests. A first study compares the reading speed on four different devices, namely paper, 40 cell Braille display and two varied conditions on the planar pin device. In a second study we isolate the factor of ‘equidistance’ which is due to the design of our planar tactile display. Our intention is to find out if equidistant Braille can be as fast as standard Braille. Because of the two-dimensionality, the pin device also can show graphics and tactile ink-print. The latter was evaluated with blind subjects in the third study.

Keywords

equidistant Braille tactile ink-print blind users planar tactile display reading speed 

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Copyright information

© Springer-Verlag Berlin Heidelberg 2010

Authors and Affiliations

  • Denise Prescher
    • 1
  • Oliver Nadig
    • 2
  • Gerhard Weber
    • 1
  1. 1.Institut für Angewandte InformatikTechnische Universität DresdenDresdenGermany
  2. 2.Deutsche Blindenstudienanstalt e.V.MarburgGermany

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