Head-Mounted Display Head Direction Detection Application Switching
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Solution Overview
Problem
Head-mounted displays (HMDs) often limit the user's field of vision, making operations less usable due to the need for manual controller interaction.
Innovation Solution
A head-mounted display equipped with a detector that senses its direction and line of vision, allowing applications to be selected and displayed based on the user's head movements, enabling intuitive switching between applications by changing the direction of the HMD.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the HMD uses a controller for operation, then the device can be controlled, but the usability deteriorates due to limited field of vision making controller operation difficult
Solution Approach 1:
The HMD system performs application switching automatically based on detected head direction, eliminating the need for manual controller operation. The detector monitors the user's head movements and the control unit autonomously switches applications according to predefined direction ranges, allowing the system to serve itself rather than requiring continuous user intervention.
Solution Approach 2:
The patent replaces the mechanical controller operation with an optical/detector-based system. Instead of requiring physical controller manipulation, the system uses a detector to sense head direction and automatically triggers application switching, substituting mechanical interaction with sensor-based automatic control.
2Ease of operation
If the HMD limits the field of vision to display images, then the display function is improved, but the user's ability to operate the device deteriorates
Solution Approach 1:
The detector acts as an intermediary between the user's head movements and the application switching function. Instead of requiring the user to manually operate controls within the limited field of vision, the detector captures head direction information and translates it into automatic application switching commands, bridging the gap between user intent and system response.
Solution Approach 2:
The system implements feedback by continuously monitoring head direction through the detector and automatically adjusting the displayed application based on the detected direction. This closed-loop feedback mechanism allows the system to respond to user head movements in real-time, enabling operation without requiring the user to manually control the device within the constrained visual field.
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
Enhances usability by allowing users to switch applications seamlessly through head movements, improving the overall interaction experience with the HMD.
Implementation Method 1
a detector configured to detect a direction of at least one of the head-mounted display and a line of vision
Data Source
AI summary
A head-mounted display comprising a display and a detector. The detector is configured to detect a direction of at least one of the head-mounted display and a line of vision. The display is configured to display an output image of an application, wherein the application is selected based on the direction being outside a range of a front direction.