Liquid Crystal Display Panel Composition for Fast Response
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Solution Overview
Problem
Existing liquid crystal display (LCD) panels using polymer-stabilizing alignment (PSA) technology face issues with slower response rates and deteriorated display quality due to unsuitable mixtures of liquid crystal compounds and polymerizable monomers, leading to inferior performance compared to conventional CRT monitors.
Innovation Solution
A composition of liquid crystal layer comprising specific LC compounds and polymerizable monomers, where the third LC compound is selected from specific groups, forming stabilization-aligned polymers that guide the arrangement of LC compounds, enhancing the stability and applicability to PSA technology, resulting in a LCD panel with high reliability and fast response rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If polymerizable monomers are mixed into the liquid crystal layer using PSA technology, then alignment stability is improved, but response rate deteriorates
Solution Approach 1:
The patent changes the chemical parameters of the liquid crystal composition by selecting specific compounds with particular molecular structures and properties. The liquid crystal layer comprises specific compounds including cyclic compounds, compounds with cyanobiphenyl groups, and compounds with specific rotational viscosity characteristics, optimizing the balance between alignment stability and response rate through compositional parameter adjustment
Solution Approach 2:
The patent creates a composite liquid crystal composition by combining multiple specific compounds in defined proportions. The composition includes cyclic liquid crystal compounds, cyanobiphenyl compounds, and compounds with specific physical properties, forming a composite material that achieves both alignment stability and fast response rate through synergistic interaction of components
2Ease of manufacture
If conventional liquid crystal compounds are used with PSA technology, then manufacturing simplicity is maintained, but display quality deteriorates
Solution Approach 1:
The patent specifies precise compositional parameters including the types and proportions of liquid crystal compounds (cyclic compounds, cyanobiphenyl compounds, compounds with specific rotational viscosity), transforming the manufacturing process from using conventional broad-spectrum materials to using precisely formulated compositions with controlled physical and chemical parameters
Solution Approach 2:
The patent applies local quality by specifying particular compounds for particular functional roles within the liquid crystal layer. Different compounds are selected for specific properties such as alignment characteristics, response rate, and temperature range, with each compound contributing specific local functional qualities to the overall composition
3Device complexity
If unsuitable liquid crystal compound mixtures are used, then device complexity is reduced, but response rate and display quality worsen
Solution Approach 1:
The patent optimizes the physical parameters of the liquid crystal composition, specifically controlling rotational viscosity through selective compound composition. By changing the molecular structure parameters and compositional ratios of specific compounds, the patent achieves reduced rotational viscosity and improved response rate without significantly increasing mixture complexity
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 proposed LCD panel achieves stable overall properties, faster response rates, and higher reliability, with improved resistance to manufacturing and operating conditions, allowing for wider temperature operation and reduced rotational viscosity, thus outperforming conventional LCD panels.
Implementation Method 1
After an energy source, such as a UV light or a heat source, is applied such that the polymerizable monomers are arranged and polymerized to form stabilization-aligned polymers
Data Source
AI summary
A liquid crystal display (LCD) panel includes a liquid crystal (LC) layer interposed between top and bottom substrates. The LC layer includes a plurality of LC compounds and a stabilization-aligned polymer polymerized from a plurality of polymerizable monomers and formed on at least one surface of the top substrate or the bottom substrate. The plurality of LC compounds comprise first, second, and third LC compounds in which the third LC compound is selected from the group consisting of a compound 3A, a compound 3B, a compound 3C, and combinations thereof. As seen from the chemical formulae, the plurality of LC compounds have condensed rings so that sensitivity to light and heat is reduced and reliability of the LCD panel is improved.