Virtual Image Alignment Correction for Vehicle Head-Up Displays
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing image display systems, such as head-up displays, do not effectively correct for misalignment between virtual images and the real-world environment when the display device changes orientation, leading to unnatural alignment issues for drivers.
Innovation Solution
An image display system with a misalignment correction unit and a distortion correction unit that adjusts the display location and image distortion based on orientation changes, using a plurality of divisional areas on the display screen with assigned distortion correction parameters to maintain accurate alignment and reduce distortion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display device changes orientation, then the display can adapt to different viewing angles, but misalignment between the virtual image and the real-world environment occurs
Solution Approach 1:
The patent implements dynamic correction by detecting the display device's orientation changes in real-time and adjusting the virtual image parameters accordingly. The system continuously monitors orientation and dynamically modifies the virtual image's position, size, and shape to maintain proper alignment with the real-world environment, resolving the contradiction between orientation adaptability and alignment precision.
Solution Approach 2:
The patent changes multiple parameters of the virtual image based on detected orientation, including position coordinates, scale factors, and distortion correction values. By adjusting these parameters dynamically, the system maintains accurate alignment between the virtual image and real-world objects regardless of the display device's orientation, thus resolving the contradiction between adaptability and precision.
2Manufacturing precision
If distortion correction is applied to the virtual image, then image quality improves, but the complexity of the correction system increases
Solution Approach 1:
The patent segments the display area into multiple divisional areas, each with its own distortion correction parameters. This segmentation allows the system to apply targeted correction to specific regions rather than the entire display, improving image quality while managing complexity through localized correction strategies.
Solution Approach 2:
The patent applies different distortion correction parameters to different divisional areas of the display, recognizing that distortion characteristics vary across the display surface. By tailoring correction parameters to local regions, the system achieves comprehensive distortion correction without requiring a single complex global correction model.
3Manufacturing precision
If multiple divisional areas with different distortion correction parameters are used, then distortion correction accuracy improves, but the complexity of parameter management increases
Solution Approach 1:
The patent divides the display into multiple divisional areas, each managed with its own distortion correction parameters. This segmentation enables accurate local correction while simplifying parameter management by creating modular, region-specific correction units that can be independently configured and updated.
Solution Approach 2:
The patent creates a universal parameter management system that handles multiple divisional areas through a unified approach. The same correction framework and methodology are applied across all divisional areas, allowing the system to manage multiple parameters efficiently through a single, multi-functional management mechanism.
Data Source
AI summary
An image display system includes a body, a first correction unit, and a second correction unit. The body houses a display unit to display an image and projects a virtual image, corresponding to the image, onto a target space using outgoing light of the display unit. The first correction unit corrects for distortion of the image. The second correction unit corrects a display location of the image on the display unit in accordance with an orientation signal representing a change in orientation of the body. Each of divisional areas of a display screen of the display unit is assigned with a distortion correction parameter for correcting for the distortion of the virtual image. The first correction unit applies distortion correction to each of the image regions of the image on the display screen based on a distortion correction parameter assigned to a divisional area where the image region is displayed.