Vehicle Pane Liquid Crystal Contact Layout for One-Side Wiring
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Solution Overview
Problem
Existing vehicle panes with PDLC arrangements face challenges in efficiently connecting electrode layers for controlling the transmission behavior, as current methods require complex and cumbersome processes to establish electrical contact.
Innovation Solution
The solution involves creating contact areas on the carrier films where the electrode layers are exposed, allowing for the integration of contact elements and a conductive material to pass through a hole in one carrier film, enabling electrical connection from a single side, simplifying the production process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional methods are used to connect electrode layers in PDLC arrangements, then electrical contact can be established, but the process becomes complex and cumbersome
Solution Approach 1:
The patent applies dimensionality change by transitioning from a bidirectional connection approach (connecting both front and back sides of the PDLC arrangement) to a unidirectional connection approach (connecting only the front side). This is achieved by providing a holder that supports the PDLC arrangement and enables electrical contact with both electrode layers from a single side, thereby simplifying the manufacturing process and reducing operational complexity while maintaining full electrical functionality.
2Productivity
If multiple connection points are provided on both sides of the PDLC arrangement, then electrical contact is achieved, but the manufacturing process becomes more time-consuming
Solution Approach 1:
The patent implements preliminary action by pre-positioning the holder to support the PDLC arrangement in an orientation that exposes both electrode layers for contact from the front side. The holder is designed in advance with appropriate contact points and structural features that enable simultaneous or sequential access to both electrodes without requiring time-consuming repositioning or additional connection steps on the back side, thereby reducing manufacturing time and improving productivity.
3Ease of operation
If complex connection processes are used, then electrical contact is established, but the number of steps and operations increases
Solution Approach 1:
The holder serves multiple functions simultaneously: it mechanically supports the PDLC arrangement, provides electrical contact with both electrode layers, and enables unidirectional access for connection operations. This multi-functionality consolidates what would otherwise require separate devices and operations into a single integrated solution, thereby improving ease of operation while reducing the overall complexity of the connection process.
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 method facilitates the production of vehicle panes by allowing both electrode layers to be contacted from one side, reducing complexity and enhancing the efficiency of connecting control lines, thus improving the manufacturing process.
Implementation Method 1
The liquid crystal arrangement is electrically switchable and by means of which the transmission behavior for light is controllable as a function of the switching status. By supplying electric voltage to the two electrode layers, the liquid crystals of the liquid crystal layer can be oriented for a change of the transmission behavior.
Data Source
AI summary
A vehicle pane includes a liquid crystal arrangement having a liquid crystal layer and first and second carrier films having, respectively, first and second electrode layers. In a first panel section, the first carrier film is free of the liquid crystal layer and the second carrier film, the first carrier film forming a first contact area with the first electrode layer. In a second panel section, the second carrier film is free of the liquid crystal layer and the first carrier film, the second carrier film forming a second contact area with the second electrode layer. The first and second electrode layers are respectively equipped with an electric contact element in the first contact area and in the second contact area. The second carrier film has a hole in the second contact area, an electric connective material passing through the hole and being in contact with the second contact element.