Liquid Crystal Grating Polymer Network Integration
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Solution Overview
Problem
Current liquid crystal gratings for naked-eye 3D displays are thick, leading to high transmittance loss in 2D mode and increased device thickness, limiting display effectiveness.
Innovation Solution
A liquid crystal grating using a polymer network layer formed by reactive monomer and photoinitiator polymerization, allowing liquid crystals to arrange via anchoring effects, integrated directly onto a display device, eliminating the need for an additional substrate and enhancing fixation with a copolymer for improved switching between 3D and 2D displays.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a superimposed individual liquid crystal grating is used, then the liquid crystal grating can be superimposed on a display panel to achieve naked-eye 3D display, but the thickness of the entire display device increases and the loss of transmittance upon 2D display is relatively high
Solution Approach 1:
The patent merges the liquid crystal grating structure with the display panel by forming the polymer network layer directly on the display panel substrate. The liquid crystal layer is integrated between the display panel and the grating structure, eliminating the need for a separate superimposed grating component. This integration reduces the overall thickness while maintaining the naked-eye 3D display functionality through the preserved grating structure and liquid crystal switching mechanism.
2Adaptability or versatility
If a superimposed individual liquid crystal grating is used, then the liquid crystal grating can be superimposed on a display panel to achieve naked-eye 3D display, but the loss of transmittance upon 2D display is relatively high
Solution Approach 1:
The integration of the liquid crystal grating with the display panel reduces the total optical path length that light must traverse through liquid crystal and substrate materials. By eliminating the separate grating substrate and reducing interface reflections, the merged structure minimizes transmittance loss when the liquid crystal is in the 2D display state, while preserving the ability to switch to 3D mode through liquid crystal reorientation.
3Adaptability or versatility
If a twisted nematic type liquid crystal grating is used, then the liquid crystal molecules can be continuously twisted to enable switching between 3D and 2D display modes, but the structure requires strip and plane electrodes on separate substrates increasing complexity
Solution Approach 1:
The patent combines the strip electrode and plane electrode functions into a single integrated electrode structure on the display panel substrate. The polymer network layer is formed directly on this integrated electrode, eliminating the need for separate substrates with distinct electrode patterns. This simplification maintains the ability to generate the necessary electric fields for liquid crystal reorientation while reducing structural complexity and manufacturing steps.
Solution Approach 2:
The integrated electrode structure serves multiple functions: it acts as both the strip electrode and plane electrode required for twisted nematic liquid crystal switching, and simultaneously provides the base for polymer network formation. This multi-functional design reduces the number of components while preserving the full switching capability between 3D and 2D display modes through liquid crystal reorientation.
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 the thickness of the liquid crystal grating, minimizes transmittance loss in 2D mode, and improves display effectiveness by allowing for efficient switching between 3D and 2D modes without the need for an additional substrate.
Implementation Method 1
a polymer network layer laying over the first transparent electrode, the polymer network layer comprising liquid crystal and a polymer network allowing the liquid crystal to arrange in a preset manner by the anchoring effect
Implementation Method 2
the polymer network is a polymer network formed by the polymerization of a reactive monomer and a photoinitiator
Data Source
AI summary
The disclosure discloses a liquid crystal grating and a method of manufacturing the same and a display apparatus, and belongs to the field of display apparatus. The liquid crystal grating comprises a polymer network layer, which comprises liquid crystal and a polymer network allowing the liquid crystal to arrange in a preset manner by the anchoring effect. The polymer network is a polymer network formed by the polymerization of a reactive monomer and a photoinitiator. The polymer network layer may further comprise a copolymer used for entangling the polymer network and adhering the polymer network to the first transparent electrode. The liquid crystal grating may be used in naked-eye 3D display.