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Related Experiment Videos

Three-dimensional tactile display for the blind

M Shinohara1, Y Shimizu, A Mochizuki

  • 1Department of Human Informatics, National Institute of Bioscience and Human Technology, Tsukuba, Ibaraki, Japan.

IEEE Transactions on Rehabilitation Engineering : a Publication of the IEEE Engineering in Medicine and Biology Society
|September 28, 1998
PubMed
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A new tactile display device with 64x64 tactile pins was developed to create tangible graphics for visually impaired individuals. Laboratory tests confirmed its effectiveness in conveying information through touch.

Area of Science:

  • Human-Computer Interaction
  • Assistive Technology
  • Haptics

Background:

  • Visually impaired individuals face challenges accessing graphical information.
  • Existing tactile displays have limitations in resolution and smoothness.

Purpose of the Study:

  • To develop and evaluate a novel tactile display device for presenting tangible relief graphics.
  • To assess the device's capability in transmitting information to visually impaired users.

Main Methods:

  • A 64x64 array of individually controllable tactile pins was designed with a hexagonal formation for smoother graphics.
  • Each pin offers adjustable height increments up to 10 mm.
  • Laboratory assessments were conducted with six blind participants.

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Main Results:

  • The tactile display successfully generated tangible relief graphics.
  • Participants were able to perceive and interpret information presented by the device.
  • The hexagonal pin arrangement contributed to smooth tactile depictions.

Conclusions:

  • The developed tactile display device shows significant potential as an assistive technology for the visually impaired.
  • The device can effectively transmit various types of information through tactile graphics.
  • Further research can explore advanced applications and user interaction paradigms.