The Field of View (FoV) defines the angular range within which a viewer perceives a stable 3D image without distortion or flipping. In autostereoscopic displays, FoV is constrained by:
- Optical Design Limits –
- Lenticular lenses/parallax barriers have a fixed pitch, restricting horizontal FoV (typically 20°–40°).
- Wider FoV requires more views, reducing per-view resolution.
- Viewing Distance Dependency –
- Moving closer increases FoV but risks crosstalk; moving farther shrinks FoV and weakens depth perception.
- Trade-offs with Resolution & Brightness –
- Expanding FoV often sacrifices pixel density or luminance uniformity.
Solutions:
- Eye tracking (dynamic view adjustment).
- High-density multi-view displays (e.g., 64+ views).
- Holographic/light-field technologies (for natural FoV expansion).
