Recessed Glass Window Structure for Foldable Impact Resistance
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Solution Overview
Problem
Existing methods for manufacturing foldable display devices face challenges in achieving both ultra-thinness and impact resistance in the glass components of windows.
Innovation Solution
A window design featuring a glass substrate with recessed portions and resin coatings that enhance impact resistance and visibility, utilizing a specific resin filling method to ensure uniform coverage and improved structural integrity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the glass substrate is made ultra-thin to achieve foldable properties, then the device can be folded, but the impact resistance deteriorates
Solution Approach 1:
The patent applies composite materials by combining glass substrate with resin layers. The glass substrate provides foldability while the resin layers provide impact resistance, creating a composite structure that achieves both properties simultaneously. The resin fills gaps and reinforces the ultra-thin glass structure.
Solution Approach 2:
The glass substrate is segmented into multiple regions with different thicknesses (first thickness region and second thickness region). This segmentation allows the glass to be ultra-thin in folding regions while maintaining sufficient strength in non-folding regions, resolving the contradiction between foldability and impact resistance.
2Strength
If resin is applied to cover the glass substrate to improve impact resistance, then strength is improved, but manufacturing complexity increases
Solution Approach 1:
The patent applies preliminary action by forming the resin pattern before final assembly. The resin is applied to cover specific regions of the glass substrate in advance, and then the glass substrate is laminated onto the display panel. This preliminary resin application simplifies the overall manufacturing process by pre-preparing the reinforcement structure.
3Ease of manufacture
If the glass substrate has uniform thickness, then manufacturing is simple, but visibility and aesthetic appearance deteriorate
Solution Approach 1:
The patent applies local quality by creating a glass substrate with non-uniform thickness distribution. The glass substrate has a first thickness in certain regions and a second thickness in other regions, allowing optimized light transmission and visibility in specific areas while maintaining manufacturing feasibility through controlled thickness variation.
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 design provides enhanced impact resistance and improved visibility by ensuring uniform resin application and structural integrity, addressing the challenges of foldable display devices.
Implementation Method 1
the resin is filled by a capillary phenomenon
Data Source
AI summary
A window includes a glass substrate, a first resin covering at least one among side surfaces of the glass substrate, and a second resin covering an upper surface of the glass substrate. The glass substrate includes a first flat portion having a first thickness, a second flat portion spaced apart from the first flat portion in a first direction and having the first thickness, and a recessed portion disposed between the first flat portion and the second flat portion, and having a second thickness smaller than the first thickness. A width of the recessed portion is smaller than a width of each of the first flat portion and the second flat portion, and the width of each of the recessed portion, the first flat portion, and the second flat portion is defined in a second direction crossing the first direction.