Wearable Terminal Virtual Image Surface Visibility
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Solution Overview
Problem
Existing wearable terminal devices struggle to efficiently display virtual images in mixed reality (MR) environments, particularly when the user's line of sight is directed towards the rear surface of a virtual image, making it difficult for the user to view information on the front surface without physically moving.
Innovation Solution
The wearable terminal device determines whether the front surface or the rear surface of a virtual image is easier for the user to see and, if the rear surface is determined to be easier, it displays an image of the front surface on the rear surface, allowing the user to view the information without moving.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the virtual image is displayed with the front surface facing the user's line of sight, then the user can easily view the information on the front surface, but the user cannot view the information when the line of sight is directed towards the rear surface without physically moving
Solution Approach 1:
The patent applies inversion by detecting when the user's line of sight directs towards the rear surface of the virtual image, and then inverting the display to show the front surface image on the rear surface. This allows the user to view information regardless of which surface orientation their line of sight encounters, resolving the contradiction between easy viewing and adaptability to different viewing directions.
2Loss of information
If the user physically moves to view the front surface of the virtual image, then the user can see the information on the front surface, but the user experience is degraded due to required physical movement
Solution Approach 1:
The system performs self-service by automatically detecting the user's line of sight direction and autonomously determining whether to invert the virtual image display. This eliminates the need for the user to manually adjust their position or interact with controls, allowing information accessibility without requiring physical movement, thus resolving the contradiction between information accessibility and user convenience.
3Stability of the object's composition
If the virtual image maintains a fixed orientation in space, then the display position is stable, but the user cannot view information when the line of sight is directed towards the rear surface
Solution Approach 1:
The patent applies dynamics by making the virtual image display orientation adjustable based on detected line of sight direction. The system dynamically switches between normal display mode (when front surface is visible) and inverted display mode (when rear surface is visible), allowing information visibility while maintaining spatial stability through conditional orientation adjustment rather than fixed orientation.
Data Source
AI summary
A wearable terminal device is configured to be used by being worn by a user. The wearable terminal device includes at least one processor. The at least one processor causes a display to display a virtual image that is located inside a space and has a first surface and a second surface on an opposite side from the first surface. The at least one processor determines whether the first surface or the second surface is easier for the user to see. When the second surface is determined to be easier to see, the at least one processor causes an image of the first surface of the virtual image to be displayed on the second surface of the virtual image.