Liquid Crystal Display Movement Control Members
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Solution Overview
Problem
Liquid crystal display (LCD) devices face issues with the movement of liquid crystal molecules causing pooling and bruising effects when touched, leading to reduced response speed and visibility, and require additional spacers to maintain cell gap.
Innovation Solution
Incorporating movement control members made of polymer within the liquid crystal structure, which restrict the movement of liquid crystal molecules, maintain cell gap, and create multi-domains for improved visibility without additional spacers.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If additional spacers are used to maintain cell gap, then cell gap stability is improved, but device complexity increases
Solution Approach 1:
The patent combines the cell gap maintenance function with the liquid crystal alignment function by integrating spacers into the alignment layer structure. The alignment layer is formed to have varying thicknesses that simultaneously serve as both alignment guidance and physical spacing elements, eliminating the need for separate spacer components.
Solution Approach 2:
The alignment layer is designed to perform multiple functions: it provides alignment guidance for liquid crystal molecules through its molecular orientation and simultaneously maintains the cell gap through its controlled thickness variations. This multi-functional design reduces the number of components needed in the display device.
2Reliability
If polymer movement control members are incorporated into the liquid crystal structure, then pooling and bruising effects are prevented, but manufacturing complexity increases
Solution Approach 1:
The patent incorporates polymer movement control members into the liquid crystal structure before the device is assembled and put into service. These members are pre-formed and positioned within the liquid crystal layer to prevent pooling and bruising effects from occurring during device operation, addressing the reliability issue before it manifests.
Solution Approach 2:
The patent uses composite material structures where polymer movement control members are integrated within the liquid crystal structure. This composite approach combines the properties of polymers (structural stability, movement restriction) with liquid crystal properties (optical modulation), creating a unified structure that prevents pooling and bruising while maintaining display functionality.
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 polymer movement control members effectively prevent pooling and bruising effects, reduce response time, and enhance side visibility by maintaining cell gap and allowing liquid crystal molecules to align with the control member direction, thereby improving overall display performance.
Implementation Method 1
The preliminary liquid crystal structure may be exposed to form a liquid crystal structure and to form at least one movement control member in the liquid crystal structure
Data Source
AI summary
A liquid crystal display device includes a first substrate, a first electrode on the first substrate, a second substrate opposed to the first substrate, and a second electrode on the second substrate. The second electrode corresponds to the first electrode. The liquid crystal display device also includes a liquid crystal structure between the first electrode and the second electrode. The liquid crystal structure includes a plurality of liquid crystal molecules and at least one movement control member. The movement control member in the liquid crystal structure restricts a movement of the liquid crystal molecules.