Liquid Crystal Stabilizing Layer Protrusions for Fast Response
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Solution Overview
Problem
Conventional liquid crystal display panels face issues with slow response rates and discontinuous frame effects due to unstable boundary conditions of liquid crystal molecules, and they struggle to achieve wide viewing angles with complex and costly manufacturing processes.
Innovation Solution
A liquid crystal display panel with a liquid crystal stabilizing layer featuring protrusions formed on the substrate, which stabilizes liquid crystal molecules and provides improved alignment, achieved through a method involving the formation of a liquid crystal stabilizing material layer with specific chemical compositions and light exposure, allowing for better pre-tilt angles and alignment effects.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If conventional alignment layers are used to stabilize liquid crystal molecules, then the boundary conditions are provided, but the response rate is slowed down and discontinuous frame effects occur
Solution Approach 1:
The patent applies local quality by creating protrusions with different heights and densities at specific locations within the alignment layer. These localized structural variations provide enhanced stabilization exactly where needed at the liquid crystal boundaries, while leaving other regions unaffected, thus maintaining fast response rates in the bulk liquid crystal region.
Solution Approach 2:
The alignment layer is segmented into multiple protrusions of varying heights and densities rather than being a uniform structure. This segmentation allows different regions to perform different functions - higher density protrusions provide stronger stabilization at critical boundaries, while lower density regions maintain faster response characteristics.
2Adaptability or versatility
If multiple rubbing treatments are applied to alignment layers for multi-directional alignment, then liquid crystal molecules achieve alignment, but the manufacturing process becomes more complicated with lower yield rate
Solution Approach 1:
The patent replaces the mechanical rubbing treatment system with a photo-alignment system. Instead of using mechanical contact to align liquid crystal molecules, the invention uses light exposure to create the desired multi-directional alignment patterns, eliminating the need for complex rubbing processes and associated equipment.
Solution Approach 2:
The invention changes the alignment mechanism from mechanical rubbing to optical field control. By adjusting light exposure parameters (intensity, duration, wavelength, pattern), the system can achieve various multi-directional alignment effects without changing the physical structure of the alignment layer or adding mechanical complexity.
3Adaptability or versatility
If photo-alignment material is incorporated into alignment layers for multi-directional alignment, then alignment effect is improved, but the material stability is compromised and expensive exposure equipment is required
Solution Approach 1:
The patent introduces protrusions as an intermediary structure between the alignment layer and the liquid crystal molecules. These protrusions mediate the alignment process by providing physical anchoring points that guide liquid crystal orientation without requiring unstable photo-alignment materials or complex light exposure equipment.
4Adaptability or versatility
If protrusions are formed on alignment layers or patterned slits are formed on pixel electrodes for multi-directional alignment, then alignment effect is improved, but additional mask steps are required increasing manufacturing cost and reducing yield rate
Solution Approach 1:
The patent merges the alignment function with the existing alignment layer structure by forming protrusions directly within it. This integration eliminates the need for separate mask steps and additional manufacturing processes that would be required if protrusions were formed as separate components or if patterned slits were created in pixel electrodes.
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 enhances the response rate and stability of liquid crystal molecules, reducing stabilization time and improving display quality, while also simplifying the manufacturing process and increasing yield rates by providing a more effective multi-directional alignment effect without the need for expensive photo-alignment materials or additional mask steps.
Implementation Method 1
The liquid crystal stabilizing layer has protrusions that stabilize liquid crystal molecules in a liquid crystal layer
Implementation Method 2
a liquid crystal stabilizing material layer is formed on a substrate, and then a light is projected on the liquid crystal stabilizing material layer
Data Source
AI summary
A liquid crystal stabilizing layer may be disposed on a substrate, an opposite substrate, or both of a liquid crystal display panel. Additionally, a liquid crystal layer may be sealed between the opposing substrates. The liquid crystal stabilizing layer may have a number of protrusions. The height of the protrusions ranges from 10 to 200 nanometers and the width of the protrusions ranges from 150 to 600 nanometers.