Braille display device using soft actuator

Sangwon Lee; Kwangmok Jung; Jachoon Koo D.V.M.; Sungil Lee; Hoogon Choi; Jaewook Jeon; Jaedo Nam; Hyoukryeol Choi

doi:10.1117/12.539739

27 July 2004 Braille display device using soft actuator

Sangwon Lee, Kwangmok Jung, Jachoon Koo D.V.M., Sungil Lee, Hoogon Choi, Jaewook Jeon, Jaedo Nam, Hyoukryeol Choi

Proceedings Volume 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD); (2004) https://doi.org/10.1117/12.539739
Event: Smart Structures and Materials, 2004, San Diego, CA, United States

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.

Citation Download Citation

Sangwon Lee, Kwangmok Jung, Jachoon Koo D.V.M., Sungil Lee, Hoogon Choi, Jaewook Jeon, Jaedo Nam, and Hyoukryeol Choi "Braille display device using soft actuator", Proc. SPIE 5385, Smart Structures and Materials 2004: Electroactive Polymer Actuators and Devices (EAPAD), (27 July 2004); https://doi.org/10.1117/12.539739

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