Roll-to-roll 2D/3D Grating Switch Membrane Manufacturing
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Solution Overview
Problem
Conventional methods for manufacturing 2D/3D grating switch membranes are inefficient, leading to high material waste and low manufacturing efficiency due to the lack of continuous production capabilities.
Innovation Solution
A roll-to-roll method utilizing a manufacturing device with specific rollers and processes for concave grating rubbing, liquid crystal and polyimide (PI) layer application, UV curing, and ion air knife treatment to produce a 2D/3D grating switch membrane, ensuring continuous production and high quality.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If conventional independent procedures are used for manufacturing 2D/3D grating switch membrane, then each procedure can be completed manually, but continuous manufacture cannot be accomplished and manufacturing efficiency is low
Solution Approach 1:
The patent combines multiple independent procedures (directional rubbing, liquid crystal filling, attaching, baking, curing) into a single integrated roll-to-roll manufacturing system where all operations occur continuously in one pass through the production line, eliminating the need for separate manual procedures
Solution Approach 2:
The manufacturing process operates continuously with materials moving through the system on rollers, with each processing station operating simultaneously without interruption, enabling uninterrupted production of the 2D/3D grating switch membrane
2Ease of manufacture
If conventional independent procedures are used for manufacturing 2D/3D grating switch membrane, then each procedure can be manually completed, but material waste is serious
Solution Approach 1:
The continuous roll-to-roll process eliminates the start-stop nature of manual procedures, maintaining constant material flow through the system which prevents material degradation and waste that occurs during repeated manual handling and positioning
Solution Approach 2:
The patent replaces manual mechanical operations with automated roller-based transport and processing mechanisms that precisely control material movement and application, eliminating the imprecision and excess material usage associated with manual operations
3Productivity
If conventional manufacturing methods are used, then simple processes can be employed, but continuous production capability is lacking
Solution Approach 1:
The manufacturing device employs universal rollers and processing stations that can handle multiple operations (rubbing, coating, curing) in sequence, with each component serving multiple functions to enable continuous production without requiring separate specialized equipment for each step
Solution Approach 2:
The patent transitions from two-dimensional manual assembly to three-dimensional continuous processing by utilizing the vertical stacking of processing stations along the material transport path, enabling multiple operations to occur simultaneously in different spatial zones
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 method enables continuous, high-efficiency production of 2D/3D grating switch membranes with improved quality, reducing material waste and enhancing manufacturing efficiency while ensuring accurate alignment and curing of liquid crystals.
Implementation Method 1
transmitting a concave grating from right to left by the concave grating feeding reel, with the concave grating facing down, rubbing by the concave grating rubbing drum
Implementation Method 2
curing the attached and pre-baked grating membrane by the UV curing means
Implementation Method 3
The stripping means comprises a stripping mechanism configured to strip the cured and shaped 2D/3D grating switch membrane from the mirror-face metal roller and a third ion air knife means configured to remove static electricity generated when the 2D/3D grating switch membrane is stripped
Data Source
AI summary
A roll-to-roll method for manufacturing 2D/3D grating switch membrane is performed in such a way that: Step 1 and Step 2 are simultaneously performed, then Step 3 is performed, and finally Step 4 is performed: Step 1, subjecting a concave grating facing down to rubbing and liquid crystal dropping; Step 2, uniformly coating a PI liquid onto a surface layer of a mirror-face metal roller, and performing self-hating and rubbing; Step 3, making the concave grating rubbed and dropped with liquid crystals in Step 1 and PI layer coated and directionally-rubbed on the mirror-face metal roller in Step 2 attached to each other, forming a grating membrane, and rotating and pre-baking the grating membrane with the mirror-face metal roller; Step 4, curing the attached and baked grating membrane by the UV curing means and after stripping, collecting and winding through the 2D/3D grating switch membrane collecting roller.