Ghost‐Free LCD HMDs With Suppressed Display Latency

ABSTRACT We developed a new physical LCD ghosting model to estimate the display ghosting due to limited LC response time, with the validation of a fast camera. Combined with the ColorVideoVDP model, we demonstrated a new perceptual ghost image index in JOD and determined the standard to achieve imperceptible and acceptable ghosting. Through the validation of the visual demo trials, we correlated the subjective experimental ghosting grades to simulated JOD value and physical configurations of LCD HMDs. For any LCD HMDs in the future, we can use this model to evaluate the perceptual ghost image level. Instead of waiting until the end‐of‐frame to light on BLU, we can expect more than 50% display latency improvement through this BLU timing optimization.