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Tactile displays driven by projected light
Max Linnander1, Dustin Goetz1, Gregory Reardon2
1Department of Mechanical Engineering, University of California, Santa Barbara, CA, USA.
Science Robotics
|October 15, 2025
Summary
Researchers developed a novel dynamic tactile display using light to create tangible digital content. This high-resolution optotactile display offers improved fidelity and scalability for future computing interactions.
Area of Science:
- Haptics and Human-Computer Interaction
- Optomechanics
- Display Technology
Background:
- Current tactile displays face challenges in achieving high resolution, speed, and dynamic range for perceptual fidelity.
- Tangible interfaces for digital content require advanced haptic feedback mechanisms.
Purpose of the Study:
- To present a novel dynamic tactile display technology that converts projected light into tactile patterns.
- To address the limitations of existing tactile displays in terms of resolution, speed, and scalability.
Main Methods:
- Developed a photomechanical surface with millimeter-scale optotactile pixels.
- Utilized photostimulated thermal gas expansion for light-to-motion transduction.
- Employed projected light for power transmission and pixel addressing.
Main Results:
- Achieved millimeter-scale displacements with response times of 2 to 100 milliseconds.
- Demonstrated optically driven displays with up to 1511 addressable pixels.
- Perceptual studies confirmed high-fidelity reproduction of spatiotemporal tactile patterns.
Conclusions:
- The developed dynamic tactile display offers a scalable and versatile solution for high-resolution haptic feedback.
- This light-driven technology establishes a foundation for practical tactile interfaces.
- Optotactile pixels represent a significant advancement in transforming digital content into tangible experiences.
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