Extrapolated Border Display for Head-Mounted Field of View Expansion
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Solution Overview
Problem
Head-mounted displays provide a limited field of view, typically around 30 degrees, which can be uncomfortable for users as it results in static black surroundings, failing to utilize the human vision system's sensitivity to motion and changes in peripheral areas.
Innovation Solution
A method and device that extrapolate input image data to display on both a main display and a surrounding border display, using techniques such as non-linear scaling and multiscale foveated video extrapolation to generate content for the border area, enhancing the field of view beyond 30 degrees.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If video content is displayed with a field of view of 30 degrees to match normal television screens, then the content fits the requirements for normal television screens, but the surrounding environment becomes fully black and it becomes uncomfortable to view movies
Solution Approach 1:
The patent extends the display from a single main display to a multi-dimensional arrangement including main display, border display, and optional rear display. This spatial expansion allows the system to maintain 30-degree content compatibility on the main display while filling peripheral and rear areas with extrapolated content, eliminating black surroundings and improving user comfort through immersive 360-degree coverage
Solution Approach 2:
The display system is segmented into multiple independent display regions (main display, border display, rear display) that can be independently controlled. The main display shows the original video content while border and rear displays show extrapolated content, allowing each segment to serve its specific function and collectively resolve the contradiction between content compatibility and user comfort
2Manufacturing precision
If the field of view is limited to 30 degrees, then the video content displays properly, but the human vision system's sensitivity to motion and changes in peripheral areas is not utilized
Solution Approach 1:
The system applies different quality levels to different spatial regions: the main display area maintains high-quality original video content, while border and rear displays use extrapolated content with potentially lower resolution. This local differentiation allows proper video display in the central 30-degree field while utilizing peripheral vision sensitivity in surrounding areas through motion-aware extrapolation algorithms
3Area of stationary object
If a border display surrounding the main display is added to expand field of view, then the field of view is enlarged up to 200 degrees or more, but the device complexity increases
Solution Approach 1:
The extrapolation processor serves multiple functions: it processes video content for the main display, generates border content for the border display, and can provide content for rear displays. This multi-functionality reduces overall system complexity by using a single processing unit for multiple display outputs rather than requiring separate processing systems for each display type
Data Source
AI summary
It is disclosed a method for displaying input image data on a display device. The display device comprises a main display and a border display which at least partly surrounds the main display. The method comprises extrapolating the input image data to obtain extrapolated image data, displaying at least part of the input image data on the main display, and displaying at least part of the extrapolated image data on the border display.