Switchable Window Electrode Patterning for Closed Image Display
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Solution Overview
Problem
Existing switchable electro-optical devices struggle to accurately display closed patterns or images without complex electrical contacting, as they require additional connections or modifications that can alter the intended visual appearance or aesthetics.
Innovation Solution
A method for preparing electrically switchable devices with patterned electrodes on transparent substrates, where electrically insulated segments with open shapes correspond to complementary parts of a desired pattern, allowing for seamless alignment and display of closed images without visible gaps, using a medium that modulates light in response to voltage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If closed patterns or images are displayed using predetermined electrode patterns with electrically insulated segments, then the device can portray closed features without complex electrical contacting, but the electrode pattern requires spatially selective removal of electrode material which increases manufacturing complexity
Solution Approach 1:
The electrode layer is segmented into electrically insulated segments by spatially selective removal of electrode material. This segmentation allows different regions to have different electrical states, enabling closed patterns to be displayed without requiring complex external electrical contacting structures. The segments are electrically isolated from each other, creating independent controllable regions that form the desired closed image features.
Solution Approach 2:
Electrically insulated segments are created by extracting or removing electrode material from specific regions of the continuous electrode layer. This extraction process, achieved through spatially selective removal techniques, creates the necessary electrical insulation within the electrode structure itself, eliminating the need for additional complex electrical contacting components while maintaining the ability to display closed patterns.
2Adaptability or versatility
If electrically insulated segments are formed by spatially selective removal of electrode material, then closed patterns can be displayed, but the manufacturing process becomes more complex and time-consuming
Solution Approach 1:
The electrode layer is segmented into electrically insulated segments by spatially selective removal of electrode material. This segmentation allows different regions to have different electrical states, enabling closed patterns to be displayed without requiring complex external electrical contacting structures. The segments are electrically isolated from each other, creating independent controllable regions that form the desired closed image features.
Solution Approach 2:
The electrode material is selectively removed during the manufacturing process to pre-form the electrically insulated segments and closed patterns before the device is assembled and operated. This preliminary structuring of the electrode layer ensures that the desired closed image features are already in place, eliminating the need for post-assembly modifications or complex electrical contacting during operation.
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 enables devices to switch between optical states, regulating light transmission and displaying closed images efficiently, with ease of electrical contacting and maintaining the intended visual appearance, suitable for applications like smart windows and display systems.
Implementation Method 1
a medium capable of modulating light in response to an applied voltage
Data Source
AI summary
Disclosed is a device for the regulation of light transmission. In particular, switchable windows and methods for their preparation are disclosed. The switchable windows include electrically switchable devices which in one optical switching state are capable of portraying closed patterns or images without the need for providing complex electrical contacting.