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Proceedings Paper

Braille display device using soft actuator
Author(s): Sangwon Lee; Kwangmok Jung; Jachoon Koo; Sungil Lee; Hoogon Choi; Jaewook Jeon; Jaedo Nam; Hyoukryeol Choi
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Paper Abstract

Tactile sensation is one of the most important sensory functions along with the auditory sensation for the visually impaired because it replaces the visual sensation of the persons with sight. In this paper, we present a tactile display device as a dynamic Braille display that is the unique tool for exchanging information among them. The proposed tactile cell of the Braille display is based on the dielectric elastomer and 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 and 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 and its effectiveness is confirmed.

Paper Details

Date Published: 27 July 2004
PDF: 12 pages
Proc. SPIE 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD), (27 July 2004); doi: 10.1117/12.539739
Show Author Affiliations
Sangwon Lee, Sungkyunkwan Univ. (South Korea)
Kwangmok Jung, Sungkyunkwan Univ. (South Korea)
Jachoon Koo, Sungkyunkwan Univ. (South Korea)
Sungil Lee, Sungkyunkwan Univ. (South Korea)
Hoogon Choi, Sungkyunkwan Univ. (South Korea)
Jaewook Jeon, Sungkyunkwan Univ. (South Korea)
Jaedo Nam, Sungkyunkwan Univ. (South Korea)
Hyoukryeol Choi, Sungkyunkwan Univ. (South Korea)


Published in SPIE Proceedings Vol. 5385:
Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD)
Yoseph Bar-Cohen, Editor(s)

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