Spatio-temporal control of vibrotactile stimulation on OLED displays with inverse filtering
Abstract
This work presents an inverse filter method capable of controlling complex and independent haptic stimulations for up to ten fingers interacting concurrently with a display. Our approach extends the inverse filtering framework to support continuous operation, enabling real-time streaming of multitouch vibrotactile signals while accounting for finger motion. We provide a comprehensive theoretical analysis that establishes the relationship between key design parameters—such as actuator count, display mechanical properties, and finger configuration—and system performance metrics, including vibration amplitude, spatial resolution, stability, and waveform reconstruction error. This analysis offers valuable engineering guidelines for the design of such systems. Our experimental setup showcases the seamless integration of this inverse filtering approach into a commercial off-the-shelf 15.6 inches OLED tactile display, equipped with 16 low-cost piezoelectric patches affixed to the rear. The resulting system can control broadband vibrations at moving positions or playback the vibrations of different musical instruments in a recording. The theoretical insights and practical implementation demonstrated in this work pave the way for advanced haptic feedback systems with broad applications in human-computer interaction and accessible technology.
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BibTeX
@article{hudin2026spatiotemporal,
title = {{Spatio-temporal control of vibrotactile stimulation on OLED displays with inverse filtering}},
author = {Charles Hudin and Ayoub Ben Dhiab},
journal = {IEEE Transactions on Haptics (ToH)},
year = {2026},
month = jul,
doi = {10.1109/toh.2026.3714920},
url = {https://cea.hal.science/cea-05776258v1},
note = {CC BY 4.0},
}
RIS
TY - JOUR
TI - Spatio-temporal control of vibrotactile stimulation on OLED displays with inverse filtering
AU - Charles Hudin
AU - Ayoub Ben Dhiab
PY - 2026
DA - 2026/07/20
JO - IEEE Transactions on Haptics (ToH)
DO - 10.1109/toh.2026.3714920
UR - https://cea.hal.science/cea-05776258v1
AB - This work presents an inverse filter method capable of controlling complex and independent haptic stimulations for up to ten fingers interacting concurrently with a display. Our approach extends the inverse filtering framework to support continuous operation, enabling real-time streaming of multitouch vibrotactile signals while accounting for finger motion. We provide a comprehensive theoretical analysis that establishes the relationship between key design parameters—such as actuator count, display mechanical properties, and finger configuration—and system performance metrics, including vibration amplitude, spatial resolution, stability, and waveform reconstruction error. This analysis offers valuable engineering guidelines for the design of such systems. Our experimental setup showcases the seamless integration of this inverse filtering approach into a commercial off-the-shelf 15.6 inches OLED tactile display, equipped with 16 low-cost piezoelectric patches affixed to the rear. The resulting system can control broadband vibrations at moving positions or playback the vibrations of different musical instruments in a recording. The theoretical insights and practical implementation demonstrated in this work pave the way for advanced haptic feedback systems with broad applications in human-computer interaction and accessible technology.
SN - 1939-1412
ER -