Rotating Virtual Image Display for Vehicle Visibility
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Solution Overview
Problem
Existing virtual image display devices for vehicles face challenges in visibility, as users often find it difficult to simultaneously focus on multiple images displayed in midair, leading to reduced recognition and operability of interactive elements.
Innovation Solution
A virtual image display device with a rotating unit that adjusts the position of virtual images to maintain visibility, incorporating a first virtual image display unit and an optional second unit, along with a depth sensor to ensure accurate detection of user interactions, enhancing both visibility and operability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If multiple virtual images are displayed in midair simultaneously, then information display capability is improved, but visibility and focus recognition deteriorate
Solution Approach 1:
The patent applies the dynamics principle by making the virtual image display portion rotatable. The rotating unit allows the display portion to change its orientation dynamically, enabling the system to adapt to different viewing conditions. This resolves the contradiction by allowing the display to maintain visibility across multiple angles while preserving focus recognition accuracy through active adjustment.
Solution Approach 2:
The patent introduces a rotational dimension to the virtual image display system. Instead of only displaying images in a fixed orientation, the display portion can rotate around the user, adding a spatial dimension to the display capability. This enables multiple virtual images to be displayed simultaneously from different angular positions, improving information display capability while maintaining individual image focus through spatial separation.
2Device complexity
If the virtual image display portion is made stationary, then device complexity is reduced, but visibility across different viewing angles deteriorates
Solution Approach 1:
The rotating unit transforms the stationary display portion into a dynamic component that can adjust its orientation. This mechanical addition, while increasing device complexity, provides the adaptability needed to display virtual images across a wider range of viewing angles, allowing the system to accommodate different user positions and perspectives.
3Adaptability or versatility
If the virtual image display portion rotates to maintain visibility, then visibility and adaptability are improved, but device complexity increases
Solution Approach 1:
The rotating unit serves multiple functions: it adjusts the viewing angle of the virtual image display portion, enables the display to track user movement, and allows multiple virtual images to be positioned optimally for different viewers. This multi-functionality justifies the added complexity by providing comprehensive adaptability across various operating conditions.
Data Source
AI summary
A virtual image display device according to an embodiment is a virtual image display device that displays information to a passenger on a vehicle. The virtual image display device includes a first virtual image display unit that displays a virtual image as information. The first virtual image display unit has a virtual image display portion that displays a virtual image and a rotating unit that rotates the virtual image display portion in a range in which the virtual image is visually recognizable by the passenger.