Roof-Mounted Display Arm for Flexible Vehicle Screen Positioning
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Solution Overview
Problem
Existing vehicle display devices are limited in terms of position and angle adjustment, restricting the degree of freedom in placement and orientation relative to the occupant.
Innovation Solution
A vehicle display device with a rotatable arm portion supported by the roof portion, allowing the display to be positioned and angled as desired, and equipped with drive units and a controller for precise adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the display is directly attached to the ceiling of the vehicle interior, then the structure is simple, but the position and angle adjustment freedom is limited
Solution Approach 1:
The patent applies the dynamics principle by replacing the fixed direct attachment with a rotatable arm mechanism. The arm portion can rotate around a rotation axis, enabling the display to dynamically adjust its position and orientation. This dynamic structure allows the display to assume multiple positions (such as horizontal and vertical orientations) and angles, significantly improving adaptability while maintaining reasonable structural complexity through the use of a single rotation mechanism.
2Illumination intensity
If the display is positioned closer to the occupant, then the visibility is improved, but the interference with the roof portion increases
Solution Approach 1:
The rotatable arm mechanism enables dynamic positioning of the display at optimal distances from the occupant. The display can be rotated to positions that provide good visibility while maintaining sufficient clearance from the roof portion. The rotation capability allows the system to adapt to different spatial constraints and occupant positions, resolving the conflict between proximity for visibility and distance to avoid interference.
3Area of moving object
If the display area is increased, then the information display capability is improved, but the space requirement increases
Solution Approach 1:
The patent applies dimensionality change by utilizing the rotational movement in a third dimension (angular position) to achieve larger effective display area. Instead of requiring more linear space, the display can be rotated to present a larger face area to the occupant. The arm mechanism allows the display to sweep through different angular positions, effectively using the rotational dimension to increase the functional display area without proportionally increasing the physical footprint in the vehicle interior.
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
Enhances the flexibility of display positioning and orientation, ensuring optimal visibility and reducing interference with the roof, while increasing available space for the display.
Implementation Method 1
one end portion side of the arm portion is rotatably supported relative to the roof portion of the vehicle interior
Implementation Method 2
a display is rotatably supported at another end portion side of the arm portion
Data Source
AI summary
A vehicle display device includes: a display provided with a display face; and an arm portion having one end portion side rotatably supported relative to a roof portion of a vehicle interior and having the display rotatably supported at another end portion side.