AR Head-Up Display Mirror Tilting for Wider Augmentation Region
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Solution Overview
Problem
Conventional augmented reality head-up displays in vehicles have limited augmentation regions, causing important information to fall outside the display area during cornering or when changing lanes, restricting the use of augmented reality features, especially on multi-lane freeways.
Innovation Solution
A method and device that dynamically adjust the position of the augmentation region by tilting a curved mirror about a vertical axis, allowing augmented reality information to be presented within the display area by shifting the virtual image horizontally, thereby expanding the effective display area without enlarging the mirror size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the mirror size is increased to expand the augmentation region, then the display area is improved, but the installation space requirement worsens
Solution Approach 1:
The patent applies the dynamics principle by making the mirror tiltable about a vertical axis, transforming a static mirror system into a dynamic one. This allows the augmentation region to be repositioned horizontally based on driving situations such as cornering or lane changes, effectively expanding the usable display area without requiring a larger mirror or more installation space. The mirror's ability to change its angular position dynamically resolves the contradiction between augmentation region size and installation space constraints.
2Adaptability or versatility
If the augmentation region is shifted to present information at road edges during cornering, then the information presentation capability is improved, but the device complexity worsens
Solution Approach 1:
The patent uses the dynamics principle to enable the mirror to tilt and reposition the augmentation region horizontally in response to detected driving situations. This dynamic adjustment allows the system to adaptively present information at road edges during cornering or on adjacent lanes during lane changes, significantly improving information presentation capability while avoiding the need for complex multi-mirror systems or additional display devices.
Solution Approach 2:
The system incorporates feedback by detecting the vehicle's driving situation (such as cornering or lane changes) and using this information to control the mirror's position. The feedback mechanism enables the augmentation region to be automatically repositioned to the appropriate horizontal location, improving adaptability while keeping the control system relatively simple through sensor-based detection of vehicle state.
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 the presentation of critical information along the road or on adjacent lanes, enhancing driver awareness and safety by dynamically adjusting the augmentation region based on driving situations, such as cornering or lane changes, without the need for larger installation space.
Implementation Method 1
a concave mirror (22), which reflects the image for generating a virtual image for a driver on a windshield
Implementation Method 2
adjusting a position of the augmentation region with respect to an observer in such a way that the augmented reality information to be presented can be presented within the augmentation region
Data Source
AI summary
The present disclosure relates to a method, a computer program having instructions, and a device for controlling an augmented reality display device. The disclosure also relates to an augmented reality display device which uses such a device or such a method. In a first step, data relating to a driving situation of the vehicle are captured. Based on these data, it is determined whether there is a driving situation requiring action in which it may be necessary to present augmented reality information at the edge of or outside an eyebox of the augmented reality display device. A position of the eyebox is then adjusted with respect to an observer in such a way that the augmented reality information to be presented can be presented within the eyebox.