Head-Up Display Movable Member for Image Alignment
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional head-up display devices face challenges in adjusting the position of a projected image after mounting on a vehicle's instrument panel, leading to potential misalignment or tilting, which affects the appearance and visibility of the image.
Innovation Solution
A head-up display device with a movable member attached to the housing, allowing the display unit to be fixed on it, where one end is supported by a rotatable shaft and the other end is energized by a resilient member and screw, enabling easy adjustment of the display unit's position without altering the entire device's position.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If the head-up display device is fixed rigidly on the instrument panel, then the manufacturing precision is improved, but the adaptability to instrument panel tolerance variations deteriorates
Solution Approach 1:
The patent applies the dynamics principle by making the housing movable relative to the instrument panel through a rotating member mechanism. This allows the housing to adjust its position and orientation dynamically, enabling the projected image to be aligned properly even when the instrument panel has tolerance variations. The movable housing transforms a static rigid connection into a dynamic adjustable connection, resolving the contradiction between manufacturing precision and adaptability.
2Manufacturing precision
If an angle adjustment mechanism is attached to the mounted position, then the image alignment is improved, but the device complexity increases
Solution Approach 1:
The patent merges the angle adjustment function with the housing structure itself. The rotating member is integrated into the housing, allowing the housing to rotate as a unified structure. This combination eliminates the need for separate angle adjustment mechanisms attached to the mounted position, reducing overall device complexity while achieving proper image alignment.
Solution Approach 2:
The patent applies the dynamics principle by making the housing movable relative to the instrument panel through a rotating member mechanism. This allows the housing to adjust its position and orientation dynamically, enabling the projected image to be aligned properly even when the instrument panel has tolerance variations. The movable housing transforms a static rigid connection into a dynamic adjustable connection, resolving the contradiction between manufacturing precision and adaptability.
3Stability of the object's composition
If the display unit position is fixed relative to the housing, then the structural stability is improved, but the ease of operation for image position adjustment deteriorates
Solution Approach 1:
The patent segments the adjustment function from the display unit itself and applies it to the housing level. The rotating member rotates the entire housing, which carries the fixed display unit. This segmentation allows the display unit to remain firmly fixed to the housing (maintaining structural stability) while the housing itself can be easily rotated to adjust the projected image position (improving ease of operation).
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 allows for easy correction of tilted images by rotating the movable member, ensuring the projected image remains erect and aligned with the instrument panel, improving both image appearance and manufacturing workability.
Implementation Method 1
the other end of the movable member is energized at one side wall thereof by a resilient member mounted on the housing
Implementation Method 2
One end of the movable member is supported by a supporting shaft protruding from the housing in such a manner as to be rotatable about the supporting shaft
Data Source
AI summary
A head-up display device includes a housing; a display unit accommodated in the housing for emitting a projected image; a reflector for reflecting the projected image passing through an opening in the housing toward an eye range of a vehicle driver. The head-up display device further includes a movable member attached movably to the housing, and the display unit is fixed on the movable member. A position of the projected image is adjusted by only moving the movable member.