Curved AR Display Optics for Wide Field and High Resolution
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Solution Overview
Problem
Existing augmented, virtual, and mixed reality systems face challenges in achieving a compact and efficient optical display structure that provides wide field of view and high resolution, particularly when used for projecting images onto the user's eye.
Innovation Solution
A mixed reality system is designed with a display shaped as an optical component, utilizing convex or concave mirrors and flexible displays, and pixel arrangements to enhance magnification and resolution, allowing for a stretched pixel structure and efficient image projection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If a conventional flat display is used for AR/VR, then the device structure is simple, but the field of view is limited and resolution is reduced
Solution Approach 1:
The patent applies curvature by shaping the display surface as a convex or concave optical component rather than using a flat display. This curved geometry enables wider field of view by directing light rays from different angles into the user's eye, while the display itself serves as the optical element, avoiding the need for separate complex optical components.
Solution Approach 2:
The patent merges the display function with the optical component function into a single integrated structure. The curved display surface simultaneously acts as both the light-emitting display and the optical element that focuses and directs light, eliminating the need for separate displays and optical components, thus achieving compactness while maintaining performance.
2Measurement precision
If magnification is increased for better resolution, then image quality improves, but the optical system becomes larger and less compact
Solution Approach 1:
The display and optical component are merged into a single curved structure, eliminating the need for separate magnification optics. The curved geometry itself provides the magnification effect by directing light rays to create a larger apparent image on the retina, achieving high resolution without adding volume from separate optical components.
Solution Approach 2:
The curved display surface provides inherent magnification through its geometry. By positioning the display at a specific curvature radius and using the curved surface to direct light rays, the system achieves magnification of the displayed image without requiring additional optical elements that would increase system size.
3Area of stationary object
If a convex or concave display shape is used, then magnification and field of view are enhanced, but manufacturing complexity increases
Solution Approach 1:
The display and optical component are combined into a single curved structure, which can be manufactured as an integrated unit using flexible display technologies. This merging approach allows the curved geometry to be achieved during the display fabrication process itself, rather than requiring separate manufacturing and assembly steps for the display and optical components.
Solution Approach 2:
The patent utilizes flexible display technology to create the curved display surface. Flexible displays can be bent and shaped into convex or concave configurations, enabling the curved geometry required for enhanced field of view and magnification while maintaining ease of manufacture through established flexible display fabrication processes.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The system achieves a compact and efficient optical display structure with enhanced magnification and resolution, providing a wider field of view and improved image quality for augmented and virtual reality applications.
Implementation Method 1
a display, an optical system that projects an image into a viewer's eye where the display is shaped to be a convex or a concave optical component
Implementation Method 2
an optical system that projects an image into a viewer's eye where the display is shaped to be a convex or a concave optical component
Data Source
AI summary
The present invention discloses a mixed reality system comprising a display and an optical system that projects the image into a viewer's eye where the display is convex or a concave optical component. The display may further be comprising of smaller displays bunched together to create optical functions. In addition, the display pixels of further comprise of sub-pixels.