Journal of Institute of Control, Robotics and Systems (제어로봇시스템학회논문지)

Institute of Control, Robotics and Systems (제어로봇시스템학회)
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Development of Braille Display Using Dielectric Elastomer

고분자 유전체를 이용한 시각 장애인용 점자 출력기 개발

  • 이상원 (성균관대학교 기계공학부) ;
  • 구익모 (성균관대학교 기계공학부) ;
  • 정광목 (성균관대학교 기계공학부) ;
  • 이성일 (성균관대학교 시스템경영학부) ;
  • 최후곤 (성균관대학교 시스템경영학부) ;
  • 전재욱 (성균관대학교 전기전자컴퓨터공학부) ;
  • 남재도 (성균관대학교 응용화학부) ;
  • 최혁렬 (성균관대학교 기계공학부)
  • Published : 2004.11.01
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Abstract

Tactile sensation is one of the most important sensory functions along with the auditory sensation for the visually impaired since it replaces the visual one of the persons with sight. In this paper, we present a tactile display device as a dynamic Braille display that is the unique tool f3r exchanging information among them. The tactile cell of the Braille display proposed is based on the dielectric elastomer, which is one of the electroactive polymers. It has advantageous features over the existing ones with respect to intrinsic softness, ease of fabrication, cost effectiveness and miniaturization. We introduce a new idea for actuation as well as additional considerations such as the driving circuit that makes it possible to drive multiple tactile cells in a high speed. Also, we describe the actuating mechanism of the Braille pin in details capable of realizing the enhanced spatial density of the tactile cells. Finally, results of psychophysical experiments are given to evaluate its effectiveness.

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References

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