Autostereoscopic Display Disparity Adjustment

The patent replaces expensive high-precision detection devices and optical modulators with standard display devices that render virtual view images. Instead of using costly specialized equipment to detect viewer position and adjust mask patterns, the system uses affordable display technology to generate multiple virtual views that are selectively presented based on detected position, significantly reducing hardware costs while maintaining effectiveness in reducing pseudoscopic discomfort

The patent substitutes physical mechanical systems (optical modulators with moving parts) with computational image processing methods. Rather than using mechanical mask patterns that physically block or redirect light based on viewer position, the system computationally generates and presents different virtual view images, replacing complex mechanical adjustment mechanisms with software-based disparity adjustment

The patent implements dynamic disparity adjustment where the disparity value is not fixed but is adaptively modified based on the detected viewer position. As the viewer moves closer to or farther from the display, the system dynamically adjusts the disparity between virtual view images to maintain optimal stereoscopic depth perception. This dynamic adjustment prevents excessive disparity values that would cause fatigue while preserving depth accuracy when the viewer is at appropriate distances

The patent changes the disparity parameter based on viewer position conditions. When the viewer is detected to be in positions where large disparity would cause fatigue (such as extreme close or far positions), the system modifies the disparity parameter to reduce the stereoscopic depth effect. This parameter adjustment allows the system to maintain high stereoscopic quality when conditions are favorable while reducing fatigue-inducing effects when conditions are unfavorable