Laminated Flexible Screen Cover for Bendability and Impact Resistance
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Solution Overview
Problem
Existing screen cover plates for flexible displays face challenges in balancing rigidity, bendability, and impact resistance, with glass covers cracking under bending and plastic covers being susceptible to scratches and deformation.
Innovation Solution
A laminated screen cover plate design comprising a first and second flexible transparent plate with a curable optical adhesive layer in between, enhancing rigidity and absorbing impact forces through structural strength.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a glass screen cover plate is used, then rigidity and scratch resistance are improved, but bendability deteriorates and cracking occurs under external force
Solution Approach 1:
The screen cover plate is divided into multiple layers: a flexible substrate layer and a rigid protective layer. This segmentation allows each layer to perform its specialized function - the substrate provides bendability while the protective layer provides rigidity and scratch resistance, resolving the contradiction between these opposing requirements.
Solution Approach 2:
The invention uses a composite structure combining flexible substrate materials (such as polyimide) with rigid protective coatings. This composite approach integrates the advantages of both material types, achieving both bendability from the flexible substrate and rigidity/scratch resistance from the rigid protective layer.
2Adaptability or versatility
If a plastic material screen cover plate is used, then bendability is improved, but rigidity deteriorates and scratch resistance worsens
Solution Approach 1:
The screen cover plate is divided into multiple layers: a flexible substrate layer and a rigid protective layer. This segmentation allows each layer to perform its specialized function - the substrate provides bendability while the protective layer provides rigidity and scratch resistance, resolving the contradiction between these opposing requirements.
Solution Approach 2:
The invention uses a composite structure combining flexible substrate materials (such as polyimide) with rigid protective coatings. This composite approach integrates the advantages of both material types, achieving both bendability from the flexible substrate and rigidity/scratch resistance from the rigid protective layer.
3Adaptability or versatility
If a plastic material screen cover plate is used, then bendability is improved, but impact resistance deteriorates and deformation increases under external force
Solution Approach 1:
The screen cover plate is divided into multiple layers: a flexible substrate layer and a rigid protective layer. This segmentation allows each layer to perform its specialized function - the substrate provides bendability while the protective layer provides rigidity and scratch resistance, resolving the contradiction between these opposing requirements.
Solution Approach 2:
The invention uses a composite structure combining flexible substrate materials (such as polyimide) with rigid protective coatings. This composite approach integrates the advantages of both material types, achieving both bendability from the flexible substrate and rigidity/scratch resistance from the rigid protective layer.
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 improves overall structural rigidity and ensures bending performance while effectively protecting the display from external forces, reducing the risk of cracking and deformation.
Implementation Method 1
an optical adhesive layer, where the optical adhesive layer is located between the first flexible transparent plate and the second flexible transparent plate, and is used to bond the first flexible transparent plate and the second flexible transparent plate
Implementation Method 2
When the first flexible transparent plate is pressed, a part of pressure is blocked, dampened, and absorbed by the first flexible transparent plate. The rest of the pressure is transferred to the optical adhesive layer through bending deformation of the first flexible transparent plate.
Data Source
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AI summary
A screen cover plate (01), a display apparatus (02), and an electronic device are provided, which relate to the field of electronic device technologies, to resolve a technical problem of poor use performance of the screen cover plate (01). The screen cover plate (01) includes a first force-bearing plate (10), a second force-bearing plate (20), and an optical adhesive layer (30). The first force-bearing plate (10) and the second force-bearing plate (20) are disposed in a laminated manner, and both the first force-bearing plate (10) and the second force-bearing plate (20) are flexible transparent plates. The optical adhesive layer (30) is located between the first force-bearing plate (10) and the second force-bearing plate (20), and is used to bond the first force-bearing plate (10) and the second force-bearing plate (20). A material of the optical adhesive layer (30) is curable optical adhesive. The screen cover plate (01) can be well adapted to a flexible display panel (021) due to good bendability and rigidity. Moreover, the screen cover plate (01) has a good anti-collision capability. This helps improve safety of the display panel (021).