Polymerizable Liquid Crystal Compound for Adhesion and Solubility
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Current polymerizable liquid crystal compounds with reverse or low wavelength dispersion have low solubility in solvents and poor adhesiveness to substrates, leading to issues like uneven screen brightness, unnatural hues, and reduced durability in display applications.
Innovation Solution
Development of a polymerizable compound with a specific partial structure represented by formula (AO-1), which forms a polymerizable composition that exhibits high solubility and adhesiveness, suitable for producing optically anisotropic bodies with improved optical characteristics.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If polymerizable liquid crystal compounds with reverse or low wavelength dispersion are used, then optical characteristics are improved, but solubility in solvents deteriorates
Solution Approach 1:
The patent applies local quality by introducing a specific partial structure (formula AO-1) with polyether chains at particular positions in the molecule. This localized structural modification provides solubility enhancement at specific regions while maintaining the overall reverse or low wavelength dispersion properties of the compound.
Solution Approach 2:
The patent creates composite molecular structures by combining the reverse/low wavelength dispersion core structure with polyether side chains (formula AO-1). This composite approach integrates two functional components: the optical property-determining core and the solubility-enhancing polyether segment, achieving both desired optical characteristics and improved solubility.
2Reliability
If polymerizable liquid crystal compounds with reverse or low wavelength dispersion are used, then optical characteristics are improved, but adhesiveness to substrates deteriorates
Solution Approach 1:
The patent applies local quality by introducing a specific partial structure (formula AO-1) with polyether chains at particular positions in the molecule. This localized structural modification provides solubility enhancement at specific regions while maintaining the overall reverse or low wavelength dispersion properties of the compound.
Solution Approach 2:
The patent creates composite molecular structures by combining the reverse/low wavelength dispersion core structure with polyether side chains (formula AO-1). This composite approach integrates two functional components: the optical property-determining core and the solubility-enhancing polyether segment, achieving both desired optical characteristics and improved solubility.
3Adaptability or versatility
If additives are added to improve solubility and adhesiveness, then solubility and adhesiveness are improved, but optical characteristics deteriorate due to reduced liquid crystallinity
Solution Approach 1:
The patent extracts the solubility-enhancing function from separate additives and integrates it directly into the polymerizable liquid crystal compound structure itself. By incorporating the polyether partial structure (formula AO-1) into the core molecule, the compound achieves improved solubility and adhesiveness without requiring external additives that would interfere with liquid crystallinity and optical properties.
Solution Approach 2:
The patent merges multiple functions (optical property determination, solubility enhancement, and adhesiveness) into a single integrated molecular structure. The polyether-containing compound (formula AO-1) simultaneously provides reverse/low wavelength dispersion, improved solubility, and good adhesiveness, eliminating the need for separate additives and avoiding the trade-off between solubility improvement and optical characteristic degradation.
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 compound ensures high solubility and adhesiveness, preventing precipitation and enhancing the optical properties and durability of optically anisotropic bodies, particularly in display applications.
Implementation Method 1
a polymerizable composition containing the compound is subjected to alignment, and then subjected to polymerization, thereby making it possible to produce a polymer having a uniform alignment
Implementation Method 2
the wavelength dispersion in terms of birefringence of a retardation film is required to be lowered or reversed
Data Source
AI summary
The polymerizable liquid crystal compound has reverse wavelength dispersion or low wavelength dispersion and has high solubility in various solvents. The polymerizable liquid crystal compound provides an optically anisotropic body having high adhesiveness to substrates (or alignment films), by adding the polymerizable liquid crystal compound to a polymerizable composition and polymerizing the polymerizable composition using ultraviolet light. The invention provides a polymerizable composition containing the polymerizable liquid crystal compound having reverse wavelength dispersion or low wavelength dispersion, a polymer obtained by polymerizing the polymerizable composition, and an optically anisotropic body using the polymer. The present invention provides a polymerizable low wavelength dispersion or polymerizable reverse wavelength dispersion compound having in the molecule a partial structure represented by the general formula (AO-1); and also provides a composition containing the compound, a polymer obtained by polymerizing the composition, and an optically anisotropic body and the like using the polymer.