Sliding Display Structure for Camera Exposure Without Layer Cracking
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Solution Overview
Problem
Current flexible display screens with camera assemblies under the screen suffer from laminated layers peeling off and cracking during bending, leading to moisture intrusion and poor display performance due to thick laminated structures participating in rolling up.
Innovation Solution
A display module design with a fixed function portion and a sliding display portion, where the function layer is disposed between the glass cover plate and the sliding display portion, allowing the sliding display portion to slide relative to the fixed function portion, reducing the thickness of laminated structures involved in bending, and incorporating hardened coatings on sliding surfaces to enhance friction resistance and hardness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the flexible display screen uses a thick laminated structure for rolling up, then the structural strength is improved, but the layers are easily peeled off and cracked during bending
Solution Approach 1:
The display module is divided into a fixed function portion and a sliding display portion. The function layer (containing polarizing layer and touch layer) is segmented and disposed between the glass cover plate and the sliding display portion, allowing the sliding display portion to roll up independently without the function layer, thus preventing layer peeling and cracking during bending
Solution Approach 2:
The function layer is extracted from the rolling structure and disposed in the fixed function portion. This extraction allows the sliding display portion to be bent and rolled up without the function layer participating, eliminating the problem of layer peeling and cracking that occurs when thick laminated structures are bent
2Adaptability or versatility
If the sliding display portion slides relative to the fixed function portion, then the bendability is improved, but the friction resistance during sliding needs to be enhanced
Solution Approach 1:
Hardened coatings are applied to the sliding surfaces of both the sliding display portion and the fixed function portion. This changes the surface parameters (hardness and friction resistance) to reduce wear and enhance the durability of the sliding interface, allowing the sliding display portion to move smoothly relative to the fixed function portion
Data Source
AI summary
A display module and a display device are provided. The display module includes a fixed function portion and a sliding display portion disposed oppositely. The fixed function portion includes a glass cover plate and a function layer disposed between the glass cover plate and the sliding display portion. The sliding display portion includes a first sub-part close to a side of the fixed function portion and a second sub-part bent and extended from the first sub-part and away from the side of the fixed function portion. The sliding display portion may slide relative to the fixed function portion.