Electrochromic Device Pattern Layer Segmentation
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Solution Overview
Problem
Current electrochromic devices used in electronic equipment housing can only present different colors and fail to achieve a combination of textures and patterns, resulting in a single appearance effect, and cannot easily change color in specific areas without altering the rest of the device.
Innovation Solution
An electrochromic device with a pattern layer that covers part of the substrate, allowing for a combination of electrochromic colors, patterns, and textures, and enabling partial color changes by varying the voltage, while maintaining a uniform appearance across the device.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If an electrochromic device uses a full-area pattern layer, then the pattern effect is maximized, but the electrochromic color change effect is completely blocked and cannot be displayed
Solution Approach 1:
The pattern layer is divided into multiple separate pattern regions rather than a continuous full-area layer. Each pattern region is independently arranged with spacing, allowing light to pass through the gaps between patterns. This segmentation enables both the pattern effect to be visible and the electrochromic color change to be displayed through the pattern areas, resolving the contradiction between pattern visibility and color change display.
2Ease of operation
If the electrochromic device changes color uniformly across the entire surface, then the color change is simple to control, but the appearance diversity and aesthetic appeal are limited
Solution Approach 1:
Different regions of the electrochromic device are designed with different properties. The pattern regions provide structural aesthetic effects while the non-pattern regions provide full electrochromic color change. This local differentiation allows the device to display diverse appearances through combination of patterned and colored regions, enhancing appearance diversity while maintaining simple uniform control for the electrochromic material itself.
3Adaptability or versatility
If a pattern layer is added to the electrochromic device, then the appearance effect is diversified, but the device structure becomes more complex
Solution Approach 1:
The pattern layer serves multiple functions simultaneously: it provides the aesthetic pattern effect, acts as a structural element of the device, and allows light transmission for electrochromic display. By making the pattern layer multi-functional rather than adding it as a separate aesthetic add-on, the overall device complexity is minimized while achieving diversified appearance effects.
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 electrochromic device achieves a diversified appearance effect with combined color and pattern changes, enhancing the expressiveness and aesthetic appeal of electronic equipment by allowing multiple color effects under the same voltage state.
Implementation Method 1
an electrochromic layer being provided between the first transparent conductive layer and the second conductive layer; and a color of the electrochromic device varies as the voltage between the first transparent conductive layer and the second conductive layer changes
Data Source
AI summary
An electrochromic device includes: a first substrate and a second substrate provided opposite to each other; a first transparent conductive layer and a second conductive layer provided between the first substrate and the second substrate; an electrochromic layer provided between the first transparent conductive layer and the second conductive layer; a bottom printed layer provided on a surface of the second substrate away from the second conductive layer; and a pattern layer. An orthographic projection of the pattern layer on the first substrate covers at most a part of a surface of the first substrate, and a color of the electrochromic device varies as a voltage between the first transparent conductive layer and the second conductive layer changes.


