A film-type haptic actuator for mobile devices

Dong-gu Kim; Sang-Youn Kim; Ki-Baek Kim; Jaehwan Kim

doi:10.1117/12.915760

30 March 2012 A film-type haptic actuator for mobile devices

Dong-gu Kim, Sang-Youn Kim, Ki-Baek Kim, Jaehwan Kim

Proceedings Volume 8344, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012; 83440V (2012) https://doi.org/10.1117/12.915760
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2012, San Diego, California, United States

Abstract

Over time, a wide variety of Haptic actuator have been designed and implemented to apply for mobile devices. This paper addresses an electrostatic actuator composed of an active film and patterned polydimethylsiloxane (PDMS) columns. A cellulose acetate (CA) film charged with an electric potential can generate vibration under the potential. The motion of the actuator is a concave and the actuator performance was modulated by increasing the bias level of the electric potential. The performance was evaluated depending on various actuation conditions in terms of electrical potential, bias voltage and frequency. It was found that the induced displacement of the actuator is proportional to the bias level of electric potential. Fast rising and falling behavior of the proposed haptic actuator can allow the generation of a vibrotactile sensation over a wide frequency range. The CA haptic actuator has a potential to generate a wide variety of tactile sensations.

Citation Download Citation

Dong-gu Kim, Sang-Youn Kim, Ki-Baek Kim, and Jaehwan Kim "A film-type haptic actuator for mobile devices", Proc. SPIE 8344, Nanosensors, Biosensors, and Info-Tech Sensors and Systems 2012, 83440V (30 March 2012); https://doi.org/10.1117/12.915760

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