Blue Phase Liquid Crystal Thin Film Voltage Color Control
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Solution Overview
Problem
Traditional methods for manufacturing colorful liquid crystal thin films face challenges in precisely controlling temperature for color production, resulting in low manufacturing efficiency and a limited range of colors.
Innovation Solution
The method involves using a polymer-stabilized blue phase liquid crystal that is twisted under applied electric fields to show different colors, which are then fixed using ultraviolet radiation, allowing for easier control and increased efficiency in producing a wider range of colors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If temperature control methods are used to produce different colors in liquid crystal thin films, then color production is achieved, but manufacturing efficiency is low and temperature control precision is difficult
Solution Approach 1:
The patent changes the control parameter from temperature to voltage. By applying different voltages to the liquid crystal cell, different colors can be produced and fixed through ultraviolet irradiation. This parameter change eliminates the need for precise temperature control while improving manufacturing efficiency and enabling easier color adjustment.
2Adaptability or versatility
If multiple temperature steps are used to produce different colors, then color variety is achieved, but the manufacturing process becomes complex and time-consuming
Solution Approach 1:
The patent replaces multiple temperature steps with voltage control. By adjusting the voltage applied to the liquid crystal cell, different colors can be achieved in a single step, and the desired color regions can be fixed by ultraviolet irradiation. This simplifies the manufacturing process while maintaining or expanding the range of producible colors.
3Manufacturing precision
If traditional temperature-based color production is used, then color display is achieved, but the manufacturing time and process steps increase
Solution Approach 1:
The patent changes from temperature-based to voltage-based control for achieving desired colors. The voltage can be quickly adjusted and precisely controlled, allowing rapid production of different colors. Once the desired color is achieved through voltage adjustment, ultraviolet irradiation fixes the liquid crystal state, completing the process efficiently without the time-consuming temperature cycling required by traditional methods.
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 approach enhances manufacturing efficiency and enables the production of colorful liquid crystal thin films with more colors by adjusting electric fields, improving color control and production efficiency.
Implementation Method 1
a blue phase liquid crystal which is twisted under applied electric fields to show different colors
Implementation Method 2
radiating a portion of the liquid crystal cell needed to show the required color by ultraviolet rays
Data Source
AI summary
The disclosed technology relates to a colorful liquid crystal thin film, a method of thereof and a display device. An embodiment of the method of manufacturing a colorful liquid crystal thin film comprises: adjusting a voltage applied across a liquid crystal cell filled with blue phase liquid crystal until the liquid crystal cell shows a required color; and radiating a portion of the liquid crystal cell needed to show the required color by ultraviolet rays.