EV-Pen: Leveraging Electrovibration Haptic Feedback in Pen Interaction
This paper presents an Electrovibration Pen (EV-Pen) which incorporates electrovibration technology into pen interactions. The EV-Pen has two unique characteristics: precise interaction and pen-on-paper feeling. We conducted four experiments for evaluating the EV-Pen. Experiment 1 was to determine preliminary characteristics of the EV-Pen. Experiments 2 and 3 were to evaluate precise interaction task performance through a steering task and a tracing task. We compared user performance between the EV-Pen, a mechanical-vibration pen, a normal pen without feedback and electrovibration-based finger interaction. Experimental results indicated that the EV-Pen outperformed the other devices in precise task interactions. Experiment 4 tested pen-on-paper feeling in drawing and handwriting tasks, and it was observed that the EV-Pen significantly enhances user experience. Based on the experimental results, we discuss implications and potential benefits for the design of the EV-Pen.
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