Head-Mounted Display State Detection and Dynamic Information Switching
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Solution Overview
Problem
Existing image display devices mounted on the head cannot change information displayed based on user intent while the user is moving, limiting flexibility and functionality.
Innovation Solution
An image display device equipped with an acquisition unit, detection unit, storage section, and image change section that detects acceleration, orientation, and angular velocity to determine states and switch information accordingly, allowing for dynamic display data generation based on user operations and movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If image data is changed and displayed in accordance with the movement of the head, then it is possible to transmit the character information serving as an image even when the user moves his/her head, but it is not possible to change information to be displayed on the basis of the user's will
Solution Approach 1:
The patent applies dynamics by making the display content adaptable to different user states. The system dynamically switches between automatic mode (where display follows head movement) and manual mode (where user can freely select information), allowing the display behavior to be flexible rather than fixed. This resolves the contradiction by enabling both reliable image transmission during movement and user-controlled information display when stationary.
Solution Approach 2:
The patent changes the operational parameter of the display system from purely automatic to having two distinct modes (automatic and manual). By introducing a mode parameter that can switch between these states, the system can adapt its behavior: in automatic mode, display follows head movement for reliable image transmission; in manual mode, users can freely select information types. This parameter change enables both previously conflicting requirements to coexist.
2Loss of information
If multiple types of information are displayed simultaneously, then information completeness is improved, but readability and user focus are degraded
Solution Approach 1:
The patent makes information display dynamic by switching between displaying multiple information types simultaneously (in manual mode when user has time to process) and displaying only essential information (in automatic mode during active movement). This dynamic adjustment ensures information completeness when needed while maintaining clarity when the user's attention is occupied with movement.
Solution Approach 2:
The patent applies local quality by selectively displaying different information types in different situations. Rather than uniformly displaying all information types in all conditions, the system provides high-quality, focused display of relevant information based on the current state - showing comprehensive information in manual mode and prioritized information in automatic mode, thus optimizing both completeness and clarity locally according to context.
3Ease of operation
If the display system automatically switches information based on head movement, then ease of operation is improved, but user control over displayed information is reduced
Solution Approach 1:
The patent makes the display system multi-functional by implementing both automatic switching capability and manual selection capability within a single system. The system can operate in automatic mode for ease of operation during movement, or switch to manual mode when users need control flexibility. This universal design allows the system to serve both automatic and user-controlled operations, resolving the contradiction between ease of operation and user control.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables simple operation to change and display various types of information, selectively displaying multiple pieces of data based on user actions and use situations, enhancing user interaction and functionality.
Implementation Method 1
a detection unit configured to detect at least one of an acceleration, an orientation, and an angular velocity of the image display device
Implementation Method 2
a detection unit configured to detect at least one of an acceleration, an orientation, and an angular velocity of the image display device
Data Source
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AI summary
An image display device includes an acquisition unit that acquires two or more types of information, a detection unit that detects at least one of an acceleration, an orientation, and an angular velocity of the image display device, an image change section that determines a state of the image display device on the basis of a detection result of the detection unit, switches information, which is to be selected from the two or more types of information acquired by the acquisition unit, in accordance with the determined state of the image display device, and generates display data based on the switched information, and a display unit that displays the display data.