Cholesteric Liquid Crystal Display with Blackening Material for Color Writing
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Solution Overview
Problem
Existing display technologies, such as thin-film transistor liquid crystal displays, face challenges with high power consumption and limited functionality, particularly in providing a color note function and variable polarization for privacy protection.
Innovation Solution
An electronic apparatus is developed that incorporates a display element with cholesteric liquid crystals and a blackening material, allowing for a color note function through physical force input and variable polarization by interposing the blackening material between cholesteric liquid crystal molecules, enabling selective privacy protection based on user environment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a thin-film transistor liquid crystal display is used, then display performance is improved, but power consumption increases
Solution Approach 1:
The patent changes the physical state parameter of the liquid crystal material from conventional nematic to cholesteric phase, which fundamentally alters the optical properties and enables reflective display mode, thereby reducing power consumption while maintaining display performance
Solution Approach 2:
The patent uses composite liquid crystal materials with specific chiral dopants and host materials to achieve the desired cholesteric phase properties, creating a specialized material system that enables both good display performance and low power consumption
2Adaptability or versatility
If cholesteric liquid crystal display elements are stacked to achieve full color, then color display capability is improved, but device complexity increases
Solution Approach 1:
The patent divides the color display function into separate display elements, each handling a specific color component, and combines them through selective activation rather than physical stacking, thereby achieving full color capability while reducing structural complexity
Solution Approach 2:
The patent makes each cholesteric liquid crystal display element multi-functional by enabling them to serve different color roles through control of their polarization states, allowing a single element type to perform multiple color display functions
3Adaptability or versatility
If partition walls are used to separate cholesteric liquid crystals with different pitches, then color differentiation is improved, but manufacturing difficulty increases
Solution Approach 1:
The patent removes the partition wall structure from the display element design, extracting the color differentiation function from physical separation and achieving it through optical control methods, thereby simplifying manufacturing while maintaining color differentiation capability
4Adaptability or versatility
If a color note function is added to the display element, then functionality is improved, but device complexity increases
Solution Approach 1:
The patent merges the color note input function with the existing display element structure by utilizing the same cholesteric liquid crystal layers and polarization control mechanisms, thereby adding functionality without proportionally increasing device 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 solution reduces data input delay, enhances the writing experience, and provides a selective privacy protection function by adjusting the polarization state of the display element, improving both functionality and user experience.
Implementation Method 1
a display element with cholesteric liquid crystals and a blackening material, allowing for a color note function through physical force input and variable polarization by interposing the blackening material between cholesteric liquid crystal molecules
Implementation Method 2
variable polarization by interposing the blackening material between cholesteric liquid crystal molecules
Implementation Method 3
blackening material between cholesteric liquid crystal molecules... providing a selective privacy protection function by adjusting the polarization state
Data Source
Figure 1(a)~1(b)
Figure 2
Figure 3
AI summary
One aspect of the present invention is to provide an electronic apparatus which is configured to provide a color writing function by means of the physical force of an external input means, and a control method thereof. More particularly, the present invention is to provide an electronic apparatus equipped with a plurality of liquid crystal panels in an electronic apparatus so that a plurality of colors can be written by the physical force of an external input means, and a control method thereof.