Abstract
This paper reports an array type film haptic actuator based on cellulose acetate. Suggested actuator can vibrate with faster response time and various frequencies to give a range of haptic feedbacks to users which can be used in touch screen devices. Fabrication process, performance evaluation and electrostatic behavior of haptic actuator are reported for tactile sensation. Cellulose acetate film is suitable for haptic actuator for its transparency, flexibility and high dielectric constant. An element of haptic actuator is made by using cellulose acetate film with patterned adhesive tape spacer, then haptic actuator elements arrayed to 3 x 3 to embed in haptic devices. Experiment to measure vibration acceleration is carried out on wide range of actuation frequency and voltage for single actuator to evaluate 3x3 array actuator.
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