AR Glasses Display Control for Stable Navigation Without Afterimages
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Solution Overview
Problem
Existing augmented reality (AR) devices generate afterimages due to changing display positions, making it difficult for users to visually recognize superimposed images and navigate effectively.
Innovation Solution
A processor controls the display of a first image with a fixed position and a second image that follows positional changes, minimizing the change amount of the first image's position relative to the second image, ensuring stable visual recognition during navigation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the display position changes according to user movement, then the navigation accuracy is improved, but afterimages are generated making visual recognition difficult
Solution Approach 1:
The patent divides the display image into two distinct segments: a first display image (navigation information) that maintains a fixed display position, and a second display image (real-space object) that changes position according to relative movement. This segmentation allows the navigation information to remain stable and recognizable while the real-space representation updates dynamically, resolving the contradiction between navigation accuracy and afterimage reduction.
2Object-affected harmful factors
If the display position is kept fixed, then afterimages are reduced, but navigation accuracy deteriorates
Solution Approach 1:
The patent applies local quality by assigning different display position characteristics to different regions of the display: the first display image (navigation information) maintains a fixed position to avoid afterimages, while the second display image (real-space object) changes position to maintain navigation accuracy. This localized differentiation allows each element to optimize its behavior for its specific function.
Data Source
AI summary
A processor is configured to display a first display image that displays information related to an object existing in a real space and a second display image on a transmissive display device, change a display position of the second display image based on a change of a relative position between the display device and the object, and perform a control to make a change amount of a display position of the first display image smaller than a change amount of the display position of the second display image.