Single-viewer autostereoscopic displays use two distinct views (left/right eye images) combined with real-time eye tracking to dynamically adjust the image delivery, effectively expanding the usable sweet spot.
How It Works
- Stereo Pair Rendering – The display generates separate left/right images (like traditional stereoscopic 3D).
- Eye Tracking – Infrared sensors or cameras detect the viewer’s eye positions in real time.
- Image Steering – The display shifts the viewing zones (via LC lenses, movable barriers, or beam steering) to align with the viewer’s eyes, allowing free head movement within a limited range.
Advantages
✔ Larger effective sweet spot – Eye tracking compensates for small head movements.
✔ Full display resolution – No multiplexing (unlike multi-view displays).
✔ Lower crosstalk – Only two views needed, reducing ghosting.
Disadvantages
✖ Limited to one viewer – No simultaneous multi-user support.
✖ Latency sensitivity – Delays in tracking can cause discomfort.
✖ Higher cost – Requires precise eye-tracking hardware.
Applications
- Medical monitors (surgical 3D displays)
- Professional 3D monitors (e.g., Dimenco, Toshiba GL1)
- VR/AR near-eye systems (emerging light-field HMDs)
