Tiled AR Display Assembly for High Pixel Density at Lower Cost
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Solution Overview
Problem
Existing head-mounted displays with OLED technology suffer from insufficient pixel density, leading to noisy or blurry images, which compromises the user experience in virtual reality applications.
Innovation Solution
A head-mounted display system comprising multiple displays with different resolutions, where a lower resolution OLED display is tiled with a higher resolution micro OLED display, with the higher resolution display centered to focus on the user's gaze point, while the lower resolution display covers the peripheral field of view.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a single OLED display is used to provide large display area, then cost is reduced and area is increased, but pixel density becomes insufficient leading to noisy or blurry images
Solution Approach 1:
The display system is segmented into multiple display panels with different resolutions. A first display panel (higher resolution) is positioned at the center of view where high pixel density is required, while a second display panel (lower resolution) is positioned at the periphery where lower pixel density is acceptable. This segmentation allows each panel to operate at its optimal resolution, achieving overall high visual quality without the cost of a uniformly high-resolution display across the entire area.
2Measurement precision
If a single micro OLED display is used to provide high pixel density, then image quality is improved, but cost increases and display area decreases
Solution Approach 1:
Different display panels with different quality characteristics are assigned to different spatial locations. The higher resolution first display panel is placed in the central region of view where users focus their attention and require superior image quality. The lower resolution second display panel is placed in the peripheral regions where users have reduced visual acuity requirements. This local quality differentiation ensures high pixel density is provided only where most needed, optimizing both image quality and cost efficiency.
3Area of stationary object
If multiple displays with different resolutions are tiled together, then cost is reduced and display area is maintained, but image discontinuity may occur at the boundaries between displays
Solution Approach 1:
The first display panel is designed with a larger active display area than strictly necessary, creating an overlap region that extends into the area where the second display panel is positioned. This excessive extension of the first display's active area ensures that the higher resolution content from the first panel is visible in the transition zone, masking the boundary between displays and maintaining image continuity. The overlapping design allows the system to prioritize image quality at the expense of some redundant display coverage.
Data Source
AI summary
A head-mounted display including multiple displays tiled together is provided. A first display may include an active region and an inactive region. A second display may be aligned with the inactive region. The first display and the second display may have different resolutions and may present visual information with different display qualities based on their respective resolutions. For example, the first display may include a lower resolution than the second display. The inactive region may be centered in the first display, and the second display may be centered with respect to the first display. The head-mounted display may provide a continuous image(s) (or video(s)) with a high resolution on the second display, while providing the remainder of the image(s) on the low resolution first display. Based on the multiple displays being tiled, the multiple displays may present one or more images, or one or more videos, in a non-overlapping manner.