Head-Mounted Display Visual Direction Tracking for Multi-User Gaming
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Solution Overview
Problem
Existing head-mounted display systems for multi-user video games limit users' observable ranges, making it difficult for participants to keep up with scrolling game windows, especially as the number of users increases, and do not effectively enhance the immersive experience.
Innovation Solution
An image display system comprising an image transmitter and two display devices, where one device displays a partial area of a whole image based on the user's visual direction, allowing users to change their viewpoint and observe a wider range, with a see-through head-mounted display that can switch between displaying images and the outside world.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the display area is divided into multiple operation windows for multiple users, then more users can participate simultaneously, but the individual operation windows become smaller and harder to operate
Solution Approach 1:
The patent transitions from a 2D display plane to a 3D spatial display environment using head-mounted displays. Each user sees the entire game window in 3D space by moving their head, eliminating the need to divide the display area into smaller 2D windows while still supporting multiple users simultaneously.
Solution Approach 2:
The display content dynamically changes based on the user's head movement and visual direction. The system extracts and displays different portions of the game window according to real-time head position, allowing each user to access the full game area interactively rather than being confined to a static divided window.
2Adaptability or versatility
If head-mounted displays are used to provide individual operation windows to each user, then users can see their own game content, but the observable range remains limited and immersion is not significantly enhanced
Solution Approach 1:
The head-mounted display serves multiple functions: it provides individualized game content to each user while simultaneously enabling them to observe the entire game window and outside world. The single device achieves both personalized display and broad observational coverage that would otherwise require multiple separate systems.
Solution Approach 2:
The system pre-extracts multiple portions of the game window in advance based on possible head movement directions. When the user moves their head, the corresponding pre-prepared image portion is immediately displayed, enabling seamless observation of the entire game area without delay.
3Illumination intensity
If a see-through head-mounted display is used to observe the outside world, then users can see their surroundings, but game content may be lost or obscured
Solution Approach 1:
The system periodically switches between displaying game content and transmitting outside world light based on the user's head movement. When the user looks at the display surface, game content is shown; when the user looks away, outside world visibility is restored. This periodic switching ensures neither game content nor outside view is permanently lost.
Data Source
AI summary
An image display system includes an image transmitter, a first display device that displays a first image, and a second display device that displays a second image, the second display device includes a display device side receiving unit that receives the second image, a display unit that displays the second image, a visual direction acquiring unit that acquires a current visual direction of the user, and a display device side transmitting unit that transmits the current visual direction, and the image transmitter includes a transmitter side receiving unit that receives the current visual direction, an extracting unit that extracts the first image as an image of a partial area in a whole image and the second image as an image of an area in response to the current visual direction in the whole image, and a transmitter side transmitting unit that transmits the first and second images.