Shared AR Display Control for Real-World Action Interference
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Solution Overview
Problem
In transmissive head-mounted displays, shared virtual space information can interfere with a user's actions when the user is not looking at the display, particularly when interacting with the real world.
Innovation Solution
A display control device that detects the state of a user wearing another display and adjusts display operations based on their visual field and line of sight in the virtual space to prevent interference.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of information
If information is displayed in a common virtual space between multiple displays, then information sharing and collaboration are improved, but user actions in the real world may be interfered with when the user is not looking at the display
Solution Approach 1:
The patent applies dynamics by making the display system adaptive to changing user states. The display control device dynamically adjusts display behavior based on real-time detection of user state (looking at display vs. looking at real world), transforming a static display system into a dynamic one that responds to user context. This resolves the contradiction by enabling information sharing when needed while automatically reducing interference when the user attends to the real world.
Solution Approach 2:
The patent implements feedback through a detection unit that continuously monitors user state and feeds this information back to the control unit. This closed-loop feedback mechanism allows the system to automatically adjust display operations based on whether the user is looking at the display or the real world, thereby resolving the contradiction between information sharing and preventing interference with real-world actions.
2Reliability
If display operations are controlled to prevent interference with user actions, then user safety and comfort are improved, but display flexibility and responsiveness may be reduced
Solution Approach 1:
The system maintains display flexibility through dynamic adaptation rather than static restrictions. By continuously detecting user state and adjusting display operations in real-time, the system preserves full functionality when appropriate while automatically implementing protective behavior when needed, thus maintaining both reliability and adaptability.
Solution Approach 2:
The patent changes display parameters (such as display position, visibility, or content) based on detected user state. When the user is looking at the real world, the system modifies display parameters to reduce interference, while restoring full display flexibility when the user returns to looking at the display. This parameter-based adaptation resolves the contradiction between safety and flexibility.
3Productivity
If multiple displays share a common virtual space, then collaboration and information accessibility are improved, but complexity of managing display operations increases
Solution Approach 1:
The patent merges the control logic for multiple displays into a unified system managed by a single display control device. By combining detection units, visual field information acquisition units, and control units into an integrated architecture, the system simplifies the management of multiple displays while maintaining collaborative functionality, thus resolving the contradiction between productivity and complexity.
Solution Approach 2:
The display control device performs multiple functions: detecting user state, acquiring visual field information, determining appropriate display operations, and controlling multiple displays. This multi-functional universal device manages the complexity of coordinating multiple displays while enabling efficient collaboration, resolving the contradiction between productivity and device complexity.
Data Source
AI summary
A display control device is a device that controls display on the display that displays display information commonly arranged in a common virtual space with another display in accordance with the line of sight of each of the displays in the virtual space, and includes a detection unit configured to detect a state of a user who wears the other display, a visual field information acquisition unit configured to acquire information on a visual field of the virtual space corresponding to the line of sight in the virtual space on the other display, and a control unit configured to control an operation related to display on the display in accordance with the detected state of the user and the acquired information on the visual field of the virtual space.