Table 5
The features of drones-based floating stereoscopic display, floating stereoscopic display of negative refractive index materials, floating stereoscopic display of microchannel matrix optical waveguide, floating stereoscopic display of retro-reflective film, plasma-based floating stereoscopic display, and acoustic wave-based floating stereoscopic display [47–59].
| Feature | Drones-based display | Negative refractive index | Microchannel matrix waveguide | Retro-reflective film | Plasma-based display | Acoustic wave-based display |
|---|---|---|---|---|---|---|
| Resolution | Low-medium (depends on LED/drone) | High (sub-wavelength optical control) | High | Medium | Low-medium (plasma voxel size limitation) | Medium |
| Color Reproduction | Good (depends on LED system) | Excellent (nanophotonic engineering) | Excellent | Good | Limited (plasma light emission restrictions) | Good |
| Field of View (FOV) | Wide (multi-drone setup) | Medium (limited by material design) | Wide | Medium | 360° | Wide |
| Depth Perception | Medium | High (real wavefront control) | High | Medium | High (true volumetric depth) | High |
| Interactivity | High (synchronized aerial display) | Medium | High | Low | High (touchless air control) | High |
| Scalability | Medium-High | Limited | High | High | Low (complex laser systems) | Medium |
| Limitations | Battery life constraints; Weather sensitivity | Fabrication complexity; Material scalability limitations | Precise alignment; Light leakage | Angle limitations; Projection alignment dependency | High-energy laser requirement;, Safety concerns | Acoustic diffraction-limited resolution |
| Potential Improvements | Lightweight energy-efficient drones; AI-based adaptive display integration | Optimization of nanophotonic manufacturing for large-scale applications | Enhancement of waveguide material efficiency and crosstalk reduction | Development of angle-adaptive materials for wider FOV | Improvement of energy efficiency; Exploration of low-power plasma techniques | Development of higher-frequency acoustic field control for display sharpness |
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