Open Head Mount Display Image Alignment and Ghosting Elimination
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Solution Overview
Problem
Existing open head mount display devices face issues with manual and inaccurate adjustment of display image distance and position, leading to poor display effects and ghosting due to fixed display image positions not matching the user's eye angles.
Innovation Solution
An open head mount display device with image acquisition, analysis, and adjustment units that determine the external object's position and adjust the display image accordingly, ensuring accurate alignment and distance matching with the user's focal distance and eye angles.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual adjusting is used to set the object distance of the display image, then the device structure remains simple, but the adjustment accuracy and timeliness deteriorate
Solution Approach 1:
The system automatically detects the external object's position and distance using the image acquisition unit, and self-adjusts the display image parameters without requiring manual intervention. The processor analyzes the image data and controls the display unit to match the display image's object distance with the external object's distance, enabling the system to serve itself.
Solution Approach 2:
The patent replaces manual mechanical adjustment with an automated optical-electrical system. The image acquisition unit captures visual information, the processor converts this to digital signals and analyzes spatial relationships, then automatically adjusts the display parameters, substituting the manual mechanical adjustment process with an integrated optical-electrical control system.
2Reliability
If fixed display image positions are used, then the device structure remains simple, but the display effect deteriorates due to mismatch with user's eye angles
Solution Approach 1:
The system dynamically adjusts the display image parameters based on real-time detection of the external object's position and the user's viewing angle. The processor continuously processes image data from the image acquisition unit and modifies the display image's position and object distance to match the changing viewing conditions, making the system adaptive rather than static.
Solution Approach 2:
The system establishes a feedback loop where the image acquisition unit continuously monitors the external environment, the processor analyzes the spatial relationships, and the display unit adjusts accordingly. This closed-loop control ensures the display image remains properly aligned with the user's viewing direction and the external object's position.
3Measurement precision
If the display image position does not match the external object position, then the device operation remains simple, but the spatial relationship accuracy deteriorates
Solution Approach 1:
The patent employs an automated optical-electrical system to detect the external object's position through the image acquisition unit, process the visual information to determine spatial relationships, and automatically adjust the display image parameters. This replaces any potential manual positioning with an integrated automated system that uses optical detection and electrical control to achieve precise spatial alignment.
Solution Approach 2:
The system creates a virtual copy of the external object's spatial position and characteristics in the display image. By analyzing the image data of the external object and replicating its position, distance, and angular relationships in the virtual display environment, the system achieves accurate spatial correspondence without physical interaction with the real object.
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
This solution enables automatic and precise adjustment of display image distance and position, improving display clarity and eliminating ghosting, resulting in a simple operation and effective 3D display.
Implementation Method 1
an image acquisition unit for acquiring an image of an external object
Implementation Method 2
the focusing lens unit 12 is used for adjusting an object distance of the display image with respect to the user's eyes 8, that is, for changing light divergence degree of the display image
Implementation Method 3
the reflection lens located in front of the user's eyes 8 is a transflective lens 21, so that the user is allowed to see the external object 91 while the display image 92 is reflected
Data Source
AI summary
The present invention provides an open head mount display device and a display method thereof, relates to the field of head mount display technology, and can solve technical problems (such as a tedious operation, a poor display effect, an inaccurate position of the display image or the like) of the open head mount display device in the prior art. The open head mount display device of the present invention comprises: a display unit for providing a display image to user's eyes; an image acquisition unit for acquiring an image of an external object; an image analysis unit for analyzing and determining a position of the external object relative to the user's eyes in accordance with the image acquired by the image acquisition unit; and an image adjusting unit for adjusting the display image in accordance with an analysis result of the image analysis unit.