Curved VR Display Eliminating Black Borders via Quasi-Conformal Mapping
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Virtual reality display technologies face limitations due to a narrow field of view (FOV) in VR apparatuses, resulting in black borders and distortion when displaying panoramic images or videos, as they cannot match the 120° to 180° horizontal FOV of human eyes, leading to a poor user experience.
Innovation Solution
A virtual reality display method that involves acquiring a visible region on a curved display surface, determining target curvatures based on the viewer's distance from the center, and adjusting the curvature of the display surface using quasi-conformal mapping to map multimedia data effectively, reducing distortion and eliminating black borders.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the horizontal FOV of VR apparatus is increased to match human eyes (120° to 180°), then the black border around the display interface is eliminated and user immersion is improved, but significant distortion is introduced in the display of panoramic images or videos
Solution Approach 1:
The patent applies curvature to the display surface, transforming it from a flat plane to a curved spherical or cylindrical surface. This curvature allows the display to wrap around the user's field of view, eliminating black borders while managing distortion through the geometric properties of curved surfaces. The curved display surface matches the natural curvature of human vision, providing a more immersive experience without the harsh distortion artifacts of flat wide-angle displays.
Solution Approach 2:
The patent transitions from two-dimensional flat display to three-dimensional curved display. By adding the dimensional aspect of curvature, the display can present content across a wider field of view without simply stretching the image horizontally, which would cause distortion. The third dimension of curvature allows the display to envelop the user's field of view more naturally.
2Area of stationary object
If panoramic image data is directly enlarged to large wide-angle flat display, then the field of view is expanded, but distortion becomes more obvious as distance to center increases and central region is compressed
Solution Approach 1:
By displaying panoramic content on a curved surface rather than a flat surface, the patent distributes the image data more evenly across the display area. The curvature allows the central region to maintain its importance while gradually transitioning to peripheral regions, preventing the compression artifact that occurs in flat wide-angle displays. The spherical geometry naturally accommodates the radial distortion pattern of panoramic images.
Solution Approach 2:
The patent changes the geometric parameters of the display surface from flat (zero curvature) to curved (non-zero curvature). This parameter change fundamentally alters how image data is mapped to the display, allowing for a more natural representation of panoramic content. The curvature parameter enables the display to maintain appropriate spatial relationships between objects at different distances from the center of the field of view.
3Device complexity
If VR apparatus uses traditional flat display to show panoramic content, then the device structure is simple, but the user experiences black borders and poor immersion feeling
Solution Approach 1:
The patent introduces curvature to the display surface, which increases structural complexity but dramatically improves user immersion. The curved display surface can be implemented using flexible display technology folded into a curved configuration, allowing the display to wrap around the user's field of view and eliminate black borders, creating a more immersive experience despite the increased structural complexity.
Data Source
AI summary
A virtual reality display method, device, apparatus and storage medium are provided. The method includes: acquiring multimedia data to be displayed and a visible region of a viewer on a curved display surface, wherein the visible region is obtained by projecting a visible range of the viewer to the curved display surface, and is not larger than a display area of the curved display surface; determining target curvatures of at least two positions in the visible region of the viewer, wherein in the target curvatures, target curvatures of different positions are related to a distance to a center of the visible region of the viewer; adjusting, based on the target curvatures of the at least two positions in the visible region, a curvature of a corresponding position on the curved display surface; and mapping the multimedia data to be displayed to the curved display surface having the adjusted curvature.