Lenticular arrays are a glasses-free 3D display technology that uses a sheet of cylindrical lenses aligned over a pixel grid to direct different images to each eye. Unlike parallax barriers, they refract light rather than block it, improving brightness and viewing angles.
Key Features
- Multi-view capability: Supports multiple viewpoints (e.g., 8-view, 16-view) for motion parallax.
- Slanted lens design: Reduces moiré patterns and improves smoothness in image transitions.
- 2D/3D switching: Some displays dynamically adjust lens behavior (via LC layers or dual-mode backlights).
Advantages vs. Parallax Barriers
✔ Higher brightness (no light-blocking)
✔ Wider viewing angles
✔ Better resolution retention
Disadvantages
✖ More complex manufacturing (lens alignment, curvature precision)
✖ Fixed viewing zones (limited “sweet spots”)
Used in commercial signage, 3D TVs, and emerging lightfield displays (e.g., Looking Glass Factory).
