Thin Glass Lamination via Integrated Line Support
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Solution Overview
Problem
The production efficiency of optical laminates is hindered by the fragility and poor handleability of thin glass materials, which become more challenging as they are made thinner, necessitating a method that enhances handling and processing efficiency.
Innovation Solution
An integrated production method where thin glass with a thickness of 100 μm or less is produced and laminated with optical films in an integrated line, using a conveyor belt or support system to maintain the glass's stability during bonding, ensuring high-speed processing without breakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If the glass material is made thinner to achieve weight saving and thinning of the image display apparatus, then the weight and thickness are reduced, but the handleability and production efficiency deteriorate due to increased fragility
Solution Approach 1:
A support member is introduced as an intermediary between the thin glass and the external environment during the lamination process. This support member provides mechanical reinforcement to the fragile thin glass, enabling it to be handled and processed without breakage despite its reduced thickness of 100 μm or less.
2Weight of moving object
If the glass material is made thinner to achieve weight saving and thinning of the image display apparatus, then the weight and thickness are reduced, but the production efficiency deteriorates due to handling difficulties
Solution Approach 1:
The support member acts as a mediator that enables continuous high-speed processing of thin glass without breakage. By providing mechanical support during lamination, it allows the integrated line to operate at high speeds while maintaining production efficiency, rather than requiring slow, careful handling of fragile glass.
Solution Approach 2:
The thin glass production step and lamination step are merged into an integrated line where the support member continuously supports the thin glass from production through lamination. This integration eliminates transfer operations and maintains production efficiency while handling ultra-thin glass.
3Ease of manufacture
If thin glass is processed in a conventional separate-line process, then each step can be optimized independently, but the production efficiency decreases due to multiple transfers and handling operations
Solution Approach 1:
The thin glass production step and lamination step are combined into a single integrated line. The support member enables this merging by providing continuous support through both processes, eliminating the need for separate handling and transfer operations that would reduce productivity.
Solution Approach 2:
The integrated line maintains continuous processing of thin glass from production through lamination without interruption or transfer. The support member ensures this continuity is possible by preventing breakage during the continuous process, thereby maintaining high productivity.
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
This method enables the production of optical laminates with improved efficiency, preventing glass breakage and allowing for the use of extremely thin glass while maintaining high production speeds, resulting in a lightweight and protective laminate.
Implementation Method 1
an adhesive layer formed through the application of an adhesive or an application liquid
Data Source
AI summary
Provided is a production method for an optical laminate, which is excellent in production efficiency even through use of a thin glass. The production method for an optical laminate of the present invention includes: a thin glass production step of producing a thin glass having a thickness of 100 μm or less; and a lamination step of laminating an optical film on one surface, or each of both surfaces, of the thin glass, the thin glass production step and the lamination step being performed in an integrated line, the lamination step including bonding the optical film onto the thin glass under a state in which the thin glass is supported.