Curved Glass Window Light Shielding Layer Formation
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Solution Overview
Problem
Existing window manufacturing technologies struggle to efficiently form light shielding layers on glass substrates with large bending angles, which are required for advanced display devices with curved surfaces.
Innovation Solution
A bonding window design featuring a first glass substrate with a large bending angle and a second glass substrate with a light shielding layer disposed between or at the inner side of the second glass substrate, allowing for easy formation of the light shielding layer during manufacturing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a light shielding layer is formed on a glass substrate with a large bending angle using conventional methods, then the manufacturing complexity increases and production efficiency decreases, but the light shielding function is still achieved
Solution Approach 1:
The glass substrate is pre-bent to the target curvature before the light shielding layer formation process. This preliminary shaping eliminates the need for complex in-situ forming methods, allowing standard coating techniques to be applied to already-curved surfaces, thereby simplifying manufacturing while maintaining productivity
Solution Approach 2:
A curvature-matched support structure or jig is introduced as an intermediary during the light shielding layer formation process. This intermediary maintains the pre-bent shape of the glass substrate during coating, enabling efficient production without requiring complex adaptive equipment, thus improving both ease of manufacture and productivity
2Strength
If the light shielding layer is disposed between the first and second glass substrates, then the adhesive strength is enhanced, but the manufacturing process complexity increases
Solution Approach 1:
The light shielding layer formation process is merged with the glass substrate bonding process. By applying the light shielding layer to one substrate before bonding, both functions (light shielding and adhesion promotion) are achieved in a single integrated manufacturing step, enhancing adhesive strength while minimizing process complexity
Solution Approach 2:
The light shielding layer serves multiple functions simultaneously: it provides light shielding, promotes adhesive bonding between substrates, and can serve as a structural interface layer. This multi-functionality reduces the need for separate components or processes, simplifying manufacturing while enhancing strength
Data Source
AI summary
A window includes a first glass substrate having a first thickness and including a first flat part and a second flat part, which face each other, with a first curved part disposed therebetween; a second glass substrate having a second thickness, disposed at an inner side of the first glass substrate, and including a third flat part and a fourth flat part, which face each other, with a second curved part disposed therebetween; and a light shielding layer disposed between the first glass substrate and the second glass substrate or disposed at an inner side of the second glass substrate.