Stretchable Cholesteric Liquid Crystal Layer Transfer Structure
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Solution Overview
Problem
Existing liquid crystal elements lack stretchability and efficient manufacturing methods, limiting their versatility and ease of production.
Innovation Solution
A liquid crystal element comprising a stretchable substrate, adhesive layer, and cholesteric liquid crystal layer with a plasticizer, formed using a manufacturing method that involves forming an alignment layer, applying a cholesteric liquid crystal layer, and adhering a stretchable substrate with an adhesive layer, followed by peeling to create a stretchable liquid crystal element.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a composite structure with cholesteric liquid crystal elastomer is used between substrates, then optical properties are achieved, but stretchability is lost
Solution Approach 1:
The liquid crystal element is divided into separate functional layers: a stretchable substrate layer and a cholesteric liquid crystal layer. This segmentation allows each layer to independently perform its function - the substrate provides stretchability while the liquid crystal layer provides optical properties, resolving the contradiction between these two requirements.
Solution Approach 2:
The invention uses a composite structure consisting of a stretchable substrate (such as elastomer or polymer) combined with a cholesteric liquid crystal layer. This composite material approach allows the final product to exhibit both the mechanical flexibility of the substrate and the optical properties of the liquid crystal, simultaneously achieving stretchability and optical functionality.
2Reliability
If traditional manufacturing methods are used for liquid crystal elements, then structural integrity is maintained, but manufacturing complexity increases
Solution Approach 1:
The alignment layer is pre-formed on the substrate before the liquid crystal layer is applied. This preliminary action ensures proper molecular orientation is established in advance, simplifying the subsequent liquid crystal layer formation process and reducing manufacturing complexity while maintaining structural integrity.
Solution Approach 2:
Instead of forming the liquid crystal layer first and then adding alignment structures, the invention inverts the sequence by first creating the alignment layer on the substrate and then applying the liquid crystal layer. This reversed approach simplifies the manufacturing process and reduces the number of steps required while ensuring proper structural integrity.
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 provides a liquid crystal element with stretchability and enables easy manufacturing, allowing for adjustable optical properties through stretching, enhancing versatility and production efficiency.
Implementation Method 1
The cholesteric liquid crystal has a property of reflecting light having a specific wavelength depending on a helical pitch
Implementation Method 2
adhering a substrate having stretchability by the adhesive layer
Data Source
AI summary
According to one embodiment, a liquid crystal element manufacturing method includes forming an alignment layer on a support body, forming a cholesteric liquid crystal layer on the alignment layer, forming an adhesive layer on the cholesteric liquid crystal layer, adhering a substrate having stretchability by the adhesive layer, and peeling the cholesteric liquid crystal layer from the alignment layer.