Vehicle Decorative Element with Semi-Transparent Functional Layer
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Solution Overview
Problem
Current decorative elements for vehicles lack flexibility and efficiency in producing lighting effects, particularly in vehicle interiors, as they require complex configurations and materials to achieve desired color changes and lighting properties.
Innovation Solution
A decorative element with a semi-transparent functional layer on a carrier substrate, featuring a multilayer structure with two semi-transparent metallic layers and a dielectric layer, or using effect pigment compositions, which changes color from incident to transmitted light, allowing for flexible and visually appealing lighting effects when backlit.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional decorative elements are used, then the structure is simple, but the lighting effects and color flexibility are limited
Solution Approach 1:
The patent employs a composite functional layer combining multiple materials (effect pigments, transparent resins, optionally metallic layers) to achieve both structural integrity and advanced optical properties. This composite structure enables flexible lighting effects and color changes while maintaining a relatively simple overall device architecture, resolving the contradiction between adaptability and complexity.
Solution Approach 2:
The patent utilizes effect pigments that exhibit color changes under different lighting conditions (backlit vs. unbacklit states). This allows the decorative element to display multiple colors and lighting effects without requiring complex mechanical or electronic control systems, thereby achieving high adaptability with minimal structural complexity.
2Adaptability or versatility
If conventional color layers are used, then the manufacturing is simple, but the optical properties and color flexibility are limited
Solution Approach 1:
The patent changes the optical parameters of the functional layer by incorporating effect pigments with specific optical properties that respond to lighting conditions. This allows the material to exhibit different colors and transparency levels without fundamentally changing the manufacturing process, achieving enhanced optical flexibility while maintaining manufacturing simplicity.
3Illumination intensity
If the decorative layer is made opaque, then the color appearance is stable, but the light transmission and lighting effects are reduced
Solution Approach 1:
The patent employs effect pigments that maintain stable color appearance in the unbacklit state (appearing opaque or semi-opaque) while transmitting light effectively when backlit. This dual-state behavior resolves the contradiction by providing color stability when needed and light transmission when illuminated, depending on the lighting condition.
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 flexible and visually appealing lighting effects by changing color from metallic to pleasant hues when backlit, simplifying production and enhancing the aesthetic appeal of vehicle interiors with adjustable optical properties.
Implementation Method 1
the semi-transparent functional layer has a multilayer structure with two semi-transparent metallic layers and a dielectric layer arranged between the two semi-transparent metallic layers
Data Source
Figure 1~2
AI summary
The invention relates to a decorative element, particularly for vehicles, which is adapted to the transmission of visible light emanating from a light source, with a decorative layer having a visible side, wherein: - the decorative element is adapted so that the light source is provided on the side facing away from the visible side of the decorative layer; - the decorative layer is based on a carrier substrate provided with a semi-transparent functional layer; and - the semi-transparent functional layer is such that it has a first, visually recognizable color when viewed in reflected light and a second, visually recognizable color when viewed in transmitted light.