Quantifying the Targeting Performance Benefit of Electrostatic Haptic Feedback on Touchscreens

Touchscreens with dynamic electrostatic friction are a com-pelling, low-latency and solid-state haptic feedback technology. Work to date has focused on minimum perceptual difference, texture rendering, and fingertip-surface models. However, no work to date has quantified how electrostatic feedback can be used to improve user performance, in par-ticular targeting, where virtual objects rendered on touchscreens can offer tactile feedback. Our results show that electrostatic haptic feedback can improve targeting speed by 7.5% compared to conventional flat touchscreens.