Flexible Window Member Manufacturing with Refractive Index Matching
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Solution Overview
Problem
Conventional windows for flexible display panels struggle to provide adequate protection against external impacts while maintaining flexibility.
Innovation Solution
A device and method for manufacturing a window member involving a chamber with pressure adjustment, a support for a base substrate with trenches, an auxiliary film, a dispenser for soft material, a pressurizer, a curing machine, and a cutting machine to form a protective layer with similar refractive index to the base substrate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a hard window material is used to protect flexible display panels from external impacts, then impact resistance is improved, but flexibility deteriorates
Solution Approach 1:
The patent uses a composite structure consisting of a base substrate (flexible material like plastic) combined with a protective layer (hard material). This composite approach allows the window member to simultaneously achieve flexibility from the base substrate and impact resistance from the protective layer, resolving the contradiction between these two opposing requirements.
Solution Approach 2:
The protective layer is applied selectively to specific regions where protection is needed, rather than making the entire window member hard. This localized application maintains the overall flexibility of the display panel while providing impact resistance only in areas requiring protection.
2Strength
If a protective layer is added to enhance impact resistance, then strength is improved, but device complexity increases
Solution Approach 1:
The patent combines multiple functions into a single integrated window member structure. The base substrate and protective layer are bonded together to form one component that simultaneously provides structural support, flexibility, and impact protection, rather than treating them as separate elements requiring individual handling and assembly.
Solution Approach 2:
The protective layer is applied to the base substrate during the manufacturing process before the window member is installed in the display device. This preliminary application of the protective coating simplifies the overall manufacturing process by integrating protection into the base material production rather than adding it as a separate post-processing step.
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 effectively forms a flexible window member with enhanced impact resistance and clarity by ensuring the protective layer matches the refractive index of the base substrate, thereby improving the durability and optical properties of flexible display panels.
Implementation Method 1
a chamber (110), a pressure adjustment pump (122) connected to the chamber (110) and configured to adjust an internal pressure of the chamber (110)
Implementation Method 2
a pressurizer (160) disposed within the chamber (110) and configured to moving relative to the base substrate (310), in the first direction and apply pressure to the base substrate (310) as the pressurizer (160) moves
Implementation Method 3
a curing machine (170) configured to generate a protective layer by curing the soft material (320)
Data Source
AI summary
A device for manufacturing a window member includes a chamber, a pressure adjustment pump connected to the chamber and configured to adjust an internal pressure of the chamber, a support configured to support a base substrate, the base substrate having a plurality of trenches of which a lengthwise direction is a first direction and an auxiliary film that surrounds at least a portion of the base substrate, a dispenser configured to provide a soft material to one side of the base substrate, a pressurizer disposed within the chamber and configured to apply pressure to the base substrate as the pressurizer moves, a curing machine configured to generate a protective layer by curing the soft material, and a cutting machine configured to cut at least a portion of the protective layer.