Head Tracker Integrated Display Substrate for VR Latency Reduction

The patent applies preliminary action by generating a temporary image in advance using previous frame data and user movement information before the new input image is ready. This temporary image is displayed during the rendering delay period to maintain visual continuity and reduce perceived latency, while the accurate gaze-tracking input image is prepared simultaneously in the background.

The patent introduces a temporary image as an intermediary between the user's actual gaze and the newly rendered input image. This intermediary image, generated from movement data and previous frames, bridges the time gap caused by rendering delays, providing continuous visual feedback without waiting for the complete input image to be ready.

The patent segments the image generation process into two independent paths: one path handles accurate gaze-tracking input images through sensors and processing units, while the other path generates temporary images using movement information and previous frame data. This segmentation allows the system to maintain high gaze detection accuracy while reducing overall complexity by distributing processing tasks.

The patent creates a copy of the previous frame data and modifies it based on movement information to generate temporary images. This copying approach avoids the need for complex real-time rendering for every display update, as the temporary image is a derived copy rather than a completely new rendering, thereby reducing system complexity while maintaining acceptable visual fidelity.