Vehicle Door Garnish with Translucent Substrate and Shielding Coating
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Solution Overview
Problem
The existing door garnish technologies for vehicles are costly and inflexible, requiring separate molds for different button configurations and physical buttons, which are not suitable for the latest technology trends such as electric vehicles, and lack the aesthetic appeal of high-tech images.
Innovation Solution
A single door garnish mold integrating a touch button and hidden lighting effect, using a translucent substrate with a shielding coating layer and an IMS module with a light source behind the substrate to display symbols through holes, allowing for both IMS and non-IMS specifications with enhanced merchantability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If separate molds are used for different button configurations and physical buttons, then manufacturing flexibility and adaptability are improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The door garnish is designed with a universal structure that can accommodate both physical buttons and touch buttons with lighting effects using a single mold. The body part includes a transparent substrate with a shielding coating layer that can be configured in different patterns (holes, lines, or solid areas) to display various button shapes and symbols, eliminating the need for separate molds for different button types.
Solution Approach 2:
The patent combines multiple functions into a single door garnish structure: the transparent substrate serves as both the display medium for button shapes and the lighting effect medium, while the shielding coating layer integrates both the button shape definition and the lighting effect control in one component, reducing the overall number of parts and molds required.
2Ease of manufacture
If physical buttons are used, then manufacturing simplicity is improved, but aesthetic appeal and high-tech image deteriorate
Solution Approach 1:
The patent replaces traditional mechanical physical buttons with a touch-sensitive interface combined with lighting effects. The touch button structure uses electrical fields and light emission instead of mechanical movement, providing a more modern and aesthetically pleasing appearance while maintaining ease of manufacture through the integrated mold design.
Solution Approach 2:
The patent utilizes lighting effects that can change color or intensity to indicate different button states, functions, or vehicle conditions. The transparent substrate with shielding coating layer allows light to pass through in specific patterns, creating dynamic visual effects that enhance the high-tech image while being manufactured as a single integrated component.
3Shape
If touch buttons with lighting effects are implemented, then aesthetic appeal and high-tech image are improved, but manufacturing cost and device complexity increase
Solution Approach 1:
The patent merges the button shape definition and lighting effect control into a single shielding coating layer applied on the transparent substrate. This integrated approach eliminates the need for separate components for button shapes and lighting structures, reducing overall device complexity while maintaining the aesthetic appeal and high-tech image of touch buttons with lighting effects.
4Manufacturing precision
If multiple molds are used for different specifications, then manufacturing precision for each button type is improved, but productivity and manufacturing cost deteriorate
Solution Approach 1:
The door garnish is designed as a universal mold that can produce different button configurations (physical buttons, touch buttons, various shapes and symbols) through a single manufacturing process. The shielding coating layer can be patterned in different ways (holes, lines, solid areas) within the same mold, allowing high manufacturing precision for each configuration type while significantly improving productivity by eliminating the need for multiple specialized molds.
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 reduces manufacturing costs by eliminating the need for multiple molds and provides a high-tech aesthetic appeal through touch buttons and lighting effects, enhancing the marketability of vehicle door garnishes.
Implementation Method 1
the light emitted from the light source passes through the holes and transmits the transparent substrate so that a symbol of a shape corresponding to the one or more holes is displayed outside
Implementation Method 2
a white painting layer provided between the transparent substrate and the shielding coating layer, and containing an inorganic pigment to reflect the light emitted from the light source
Data Source
AI summary
A door garnish for a vehicle includes a body part and an IMS module provided with a light source behind the body part including a transparent substrate so that light of the light source transmits the body part to be emitted to the outside, thereby displaying a certain shape of a button outside.


