Definition & Challenge:
Dynamic crosstalk compensation mitigates time-varying leakage between left/right views (e.g., due to head motion or display switching). Unlike static crosstalk, it requires real-time measurement and correction to preserve 3D integrity.
Key Metrics:
- Temporal Crosstalk (%) –
- Measured as leaked luminance (undesired view) / intended luminance (target view) during motion.
- Test Method: High-speed photodetector captures per-frame luminance transitions (e.g., black-to-white pulses).
- Compensation Latency –
- Time from crosstalk detection to applied correction.
- Target: ≤1 frame delay (e.g., <16 ms @60Hz).
- Viewing-Angle Stability –
- Crosstalk uniformity across FoV under motion.
- Tool: Automated goniometer with synchronized eye-tracking.
Compensation Techniques:
- Predictive Shuttering: Adjusts pixel timing preemptively (e.g., based on head-tracking).
- Backlight Modulation: Syncs LED pulses with view transitions.
- Per-Pixel Overdrive: Compensates LCD response lag via voltage tuning.
Validation Setup:
- Motion Simulator: Replicates head movement (linear/rotational).
- High-Speed Imaging: Verifies crosstalk suppression at edge cases.
