HMD Additive Displays for Power-Constrained Virtual Reality
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Solution Overview
Problem
Wearable devices with head-mounted displays (HMDs) face limitations in battery life due to high power consumption, especially when used in computer-generated reality environments.
Innovation Solution
A method and system that utilize a head-mounted display (HMD) with a primary display extending across a field-of-view and a secondary display physically and electronically coupled to the primary display, where the secondary display has a lower resolution. The system manages power by displaying a first portion of a virtual object via the secondary display and a second portion via the primary display, applying visual effects to the second portion when it is near the edge of the primary display.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a high-resolution primary display is used across the entire field-of-view, then display quality is improved, but power consumption increases
Solution Approach 1:
The display area is segmented into a primary display region and a secondary display region. The primary display provides high resolution for central field-of-view, while the secondary display provides lower resolution for peripheral field-of-view, thereby reducing overall power consumption while maintaining display quality where it matters most
Solution Approach 2:
Different resolution qualities are applied to different regions of the display. The primary display region (central FOV) receives high-resolution rendering, while the secondary display region (peripheral FOV) receives lower-resolution rendering, optimizing power consumption based on the importance of each region
2Use of energy by moving object
If a secondary display with lower resolution is used, then power consumption is reduced, but display quality deteriorates
Solution Approach 1:
The display is divided into two segments: primary display for high-quality central viewing and secondary display for lower-quality peripheral viewing. This segmentation allows the system to use lower power overall while maintaining high display quality in the most important viewing region
Solution Approach 2:
High display quality is localized to the primary display region where the user's attention is focused, while the secondary display region accepts lower quality. This local quality approach ensures that power consumption is reduced without significantly impacting the user's primary viewing experience
3Stability of the object's composition
If visual effects are applied to smooth transitions between displays, then transition quality is improved, but processing complexity increases
Solution Approach 1:
Visual effects such as blurring are applied in advance to the second portion of virtual objects before they are displayed on the primary display. This preliminary action ensures smooth transitions when objects move between display regions, reducing the need for complex real-time processing during transitions
Data Source
AI summary
One or more techniques for managing virtual objects between one or more displays are described. In accordance with some embodiments, exemplary techniques for displaying a virtual object are described.