Augmented Reality Display Positioning for Multi-Depth Images
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Solution Overview
Problem
Existing augmented reality display systems face high costs and display quality issues due to the use of multiple displays or temperature-sensitive liquid lenses, which affect image display effects.
Innovation Solution
An augmented reality display apparatus with a depth acquisition assembly, display system, processor, and lifter mechanism that adjusts the display position based on acquired depth information to maintain a stable optical structure, reducing the need for multiple displays and temperature-sensitive components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple displays are used to achieve multi-depth display, then virtual images can be displayed at different depth positions, but the cost of the augmented reality apparatus increases
Solution Approach 1:
The patent uses a movable display system that can dynamically adjust its position along the optical axis to display virtual images at different depth positions. The display system is driven by a lifter mechanism controlled by a processor, allowing a single display to achieve multi-depth functionality through dynamic repositioning rather than using multiple static displays
Solution Approach 2:
A single display system is designed to perform multiple functions by adjusting its position. The same display can present virtual images at various depth positions (e.g., near, medium, far depths) by being moved to different locations, making one component serve the role that would otherwise require multiple displays
2Adaptability or versatility
If a liquid lens is used to control light angle and direction, then image display flexibility is improved, but the apparatus becomes sensitive to ambient temperature affecting display effect
Solution Approach 1:
The patent replaces the liquid lens optical control mechanism with a mechanical position adjustment system. Instead of using a liquid lens to control light angle and direction (which is temperature-sensitive), the system uses a lifter mechanism to physically move the display system to different positions, achieving light direction control through geometry rather than optical manipulation
Solution Approach 2:
The patent eliminates the need for complex, temperature-sensitive liquid lens components by using a simpler mechanical positioning system with a display system that can be moved to different positions. This substitution uses more robust, temperature-insensitive components to achieve the same functional outcome
3Device complexity
If the display system position is fixed, then the structure is simple, but the apparatus cannot achieve multi-depth display
Solution Approach 1:
The display system transitions from a fixed position to a dynamic, movable position along the optical axis. The lifter mechanism enables the display system to move to different positions based on control signals from the processor, allowing the system to adapt to different depth requirements while maintaining relatively simple structural components
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
Enables multi-depth augmented reality display with reduced costs and consistent image quality by ensuring the angle of light received by the human eye remains constant, thus maintaining display effectiveness across varying depths.
Implementation Method 1
the lifter being configured to drive the display system to move to a target position relative to the spectacle frame based on the displacement information determined by the processor, the target position being a final arrival position of the display system indicated by the displacement information
Data Source
AI summary
An augmented reality display apparatus is provided and includes: a display system configured to display a target image; a depth acquisition assembly configured to acquire depth position information of a target object, the target object including at least one of human eyes and the target image; a processor fixedly connected to the display system, the processor being configured to determine displacement information of the display system based on the depth position information of the target object acquired by the depth acquisition assembly; a spectacle frame connected to the display system and the depth acquisition assembly; and a lifter fixedly connected to the spectacle frame and the processor, the lifter being configured to drive the display system to move to a target position relative to the spectacle frame based on the displacement information determined by the processor.