Definition & Challenge:
Color consistency refers to maintaining uniform hue, saturation, and luminance across all viewing angles in autostereoscopic displays. Variations arise due to:
- Optical Layer Effects –
- Lenticular lenses or parallax barriers diffract light differently per view, causing angular color shift (e.g., blue/yellow tinting).
- Polarization artifacts in some designs may alter perceived color.
- Pixel-Level Non-Uniformity –
- Subpixel rendering for multiple views can introduce view-dependent color errors, especially near viewing zone edges.
- Backlight Interactions –
- Directional backlights (e.g., for head-tracking) may create spectral non-uniformity at oblique angles.
Measurement & Mitigation:
- Per-view colorimetry (using goniophotometers).
- Calibration algorithms to compensate for angular color drift.
- Hybrid optical designs (e.g., combined diffuser-lenticular layers) to smooth gradients.
