Ceramic Shell Color Gradient Boundary Control
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing ceramic materials used in electronic equipment have limited color options, leading to a lack of diversity in appearance and visual appeal.
Innovation Solution
A shell with a ceramic substrate featuring a first region, a second region, and a gradation region between them, where the gradation region transitions from the first color to the second color, enhancing the visual aesthetics and appearance uniformity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If ceramic materials are used for their high hardness and wear resistance, then the structural performance is improved, but the color variety and appearance effect remain single and limited
Solution Approach 1:
The ceramic substrate is divided into multiple regions with different colors (first region, second region, third region, etc.), where each region can have distinct color characteristics. This segmentation allows the single ceramic material to display multiple colors and patterns, resolving the contradiction between maintaining ceramic structural performance and achieving color diversity.
Solution Approach 2:
Different regions of the ceramic substrate are assigned different color properties through localized colorant addition or selective sintering processes. The first region may have a first colorant concentration, while the second region has a different concentration or type of colorant, creating local quality variations that enhance appearance effects while maintaining overall ceramic integrity and mechanical properties.
2Adaptability or versatility
If multiple ceramic modules of different colors are directly spliced together, then the color contrast effect is strong and individualization is improved, but the boundaries between colors are clear and distinct which may reduce appearance uniformity
Solution Approach 1:
A gradation region is introduced as an intermediary zone between the first region and second region. This gradation region contains a gradual transition of colorant concentrations, creating a smooth color gradient that connects the distinct color regions. The intermediary zone eliminates abrupt boundaries while maintaining strong color contrast, thereby improving appearance uniformity without sacrificing individualization.
Solution Approach 2:
The colorant concentration is varied continuously across the gradation region, transitioning from the concentration in the first region to the concentration in the second region. This parameter change (gradual concentration variation) creates a smooth visual transition that reduces boundary line shape errors and improves appearance uniformity while preserving the overall color contrast effect.
3Adaptability or versatility
If a gradation region is added between two color regions, then the appearance effect is enriched and visual aesthetics are improved, but the manufacturing process becomes more complex
Solution Approach 1:
The colorant distribution is designed and prepared in advance during the green body formation stage, with the gradation region's colorant concentration profile predetermined. By performing the color gradient creation action preliminarily (before sintering), the complex appearance effect is achieved through a relatively simple subsequent sintering process, reducing overall manufacturing complexity.
Solution Approach 2:
The ceramic substrate functions as a composite material system where ceramic particles are combined with colorants in varying concentrations across different regions. The gradation region represents a composite with intermediate colorant concentrations, creating a multi-phase composite structure that achieves rich appearance effects while using a unified material system that simplifies manufacturing compared to assembling separate components.
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 shell achieves a rich appearance effect with improved visual aesthetics, significantly enhancing the appearance and product competitiveness when applied to electronic devices.
Implementation Method 1
sintering the obtained green body to form a ceramic substrate
Implementation Method 2
the gradation region presents a gradation from the first color to the second color
Data Source
Figure 1~4
Figure 5~7
Figure 8(a)~8(i)
AI summary
Provided is a shell, comprising a ceramic substrate, wherein the ceramic substrate comprises a first area, a second area and a gradation area located between the first area and the second area, wherein the first area presents a first color, the second area presents a second color, and the first area and the second area have a color difference; the direction from the first area to the second area is a first direction, and the gradation area presents a gradation from the first color to the second color in the first direction; and the surface of the ceramic substrate is provided with a first boundary and a second boundary, the first boundary is located between the first area and the gradation area, the second boundary is located between the second area and the gradation area, and the straightness of at least one of the first boundary and the second boundary is less than 0.5 mm. The shape error of boundaries between various color areas of the shell is small, thereby ensuring appearance uniformity, and improving visual aesthetics. The preparation method for the shell is simple, and the appearance competitiveness and the product performance of an electronic device having the shell are improved.