Vehicle Display Device Dynamic Illumination Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current vehicle display devices lack an effective means to enhance their design properties, particularly in how light is used to irradiate movable decorative members, leading to suboptimal visual recognition and potential irregularities in brightness.
Innovation Solution
A vehicle display device comprising a housing unit with a decorative member, a virtual image display device, a drive device to move the decorative member, and an illumination device that adjusts light source activation based on the member's position to ensure consistent and appealing illumination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the decorative member is moved to change display content, then the versatility of the display device is improved, but the illumination uniformity deteriorates due to abrupt brightness changes
Solution Approach 1:
The illumination device is configured to dynamically adjust its light emission based on the position of the decorative member. As the decorative member moves between first and second positions, the illumination device changes illumination patterns to maintain uniform appearance. This dynamic coordination between movement and illumination ensures that the decorative member remains properly lit throughout its travel range, resolving the contradiction between movement versatility and illumination uniformity.
Solution Approach 2:
The system implements feedback control where the illumination device responds to the positional state of the decorative member. When the decorative member is detected at specific positions, the illumination device adjusts its light output accordingly - illuminating when the member is in certain positions and reducing or stopping illumination when in others. This feedback mechanism ensures consistent visual appearance despite the member's movement, addressing the illumination uniformity issue while preserving display versatility.
2Illumination intensity
If the illumination device operates continuously to light the decorative member, then the illumination uniformity is improved, but the energy consumption increases
Solution Approach 1:
The illumination device operates periodically rather than continuously, activating only when the decorative member is in specific positions that require illumination. When the member moves to positions where illumination is not needed, the device stops or reduces light output. This periodic operation maintains illumination uniformity during critical moments while significantly reducing overall energy consumption compared to continuous operation.
Solution Approach 2:
The illumination device is activated in advance before the decorative member reaches positions requiring illumination, and deactivated after the member moves away. This preliminary and follow-up action ensures that the decorative member is always properly illuminated when in visible positions, while avoiding unnecessary energy consumption when the member is in positions where illumination is not required.
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
The solution improves the design property by ensuring the decorative member is appropriately lit throughout its movement, minimizing abrupt changes in brightness and enhancing visual appeal, thereby improving the overall display experience.
Implementation Method 1
an illumination device operated depending on a movement of the decorative member to irradiate the decorative member with light
Data Source
AI summary
A vehicle display device includes: a housing unit having an opening facing an eye point side of a vehicle; a decorative member disposed inside the housing unit; a display device configured to display an image inside the housing unit, a drive device configured to move the decorative member in a width direction of the housing unit; and an illumination device operated depending on a movement of the decorative member to irradiate the decorative member with light. The illumination device may have a plurality of light sources arranged along the width direction.