Privacy Glazing Notch Electrode Connections
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing smart glazing structures with electrically controllable optically active materials face challenges in achieving a flush edge surface for easy processing and minimizing the projection of electrode connection regions into the sightline, which complicates downstream processing and sealing.
Innovation Solution
The implementation of notches in the peripheral edges of panes bounding the optically active material allows for flush edge surfaces and recessed electrical connection regions, enabling easier handling and sealing by providing access to electrode layers without offsetting the panes, thus facilitating electrical connections and preventing environmental contaminants.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If an offset lip structure is used to install bus bars for electrical connections, then electrical contact can be established, but the structure projects into the sight line and creates an irregular surface that is difficult to manipulate during processing
Solution Approach 1:
The patent extracts the electrical connection function from the main pane surface by creating notches that allow bus bars to connect to electrode layers at the edges of the panes. This removes the need for offset lips that project into the sight line, while still providing reliable electrical contact through the notched regions where bus bars can be installed and connected to the electrode layers without creating irregular surfaces that complicate processing.
2Ease of operation
If panes are offset to provide space for electrode contacts, then electrical connections can be made, but the irregular offset surface complicates downstream processing and sealing
Solution Approach 1:
The patent resolves the contradiction by moving the electrical connection interface from the lateral dimension (offset lips) to the vertical dimension (notches extending from the edge inward). This allows the panes to remain flush with each other, maintaining a simple regular surface for processing and sealing, while the notches provide the necessary access for electrical connections in a different spatial configuration that does not increase overall structural complexity.
Data Source
AI summary
A privacy glazing structure may include an electrically controllable optically active material that provides controlled transition between a privacy or scattering state and a visible or transmittance state. To make electrical connections with electrode layers that control the optically active material, the privacy glazing structure may include electrode engagement regions. In some examples, the electrode engagement regions are formed as notches in peripheral edges of opposed panes bounding the optically active material. The notches may or may not overlap to provide a through conduit in the region of overlap for wiring. In either case, the notches may allow the remainder of the structure to have a flush edge surface for ease of downstream processing.