Flexible Display Composite Structure for Drop Resistance
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Solution Overview
Problem
The existing glass substrates used in displays are fragile, prone to deformation, and have poor bending properties, leading to increased manufacturing costs and failure rates, especially in large-sized displays, which are further compromised by factors like collision, pressure, and contamination.
Innovation Solution
A display structure comprising a supporting layer and a flexible layer, with the flexible layer positioned between the supporting layer and the display structure, enhancing alignment accuracy and stiffness, allowing for slight bending while providing drop resistance, and incorporating a protection layer for improved durability and resistance to deformation and scratches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If glass substrate is thinned to reduce weight and thickness, then the display becomes thinner and lighter, but the glass substrate becomes more fragile and prone to deformation
Solution Approach 1:
The patent employs a composite structure consisting of a flexible substrate combined with a supporting layer (such as a rigid plate or frame) to create a hybrid support system. This composite approach allows the display to maintain the thin and light characteristics of the flexible substrate while the supporting layer provides the necessary mechanical strength and rigidity to prevent deformation and breakage, thus resolving the contradiction between weight reduction and durability enhancement.
2Length of stationary object
If glass substrate is thinned to reduce thickness, then the display becomes thinner, but the manufacturing failure rate increases
Solution Approach 1:
By using a composite structure with a flexible substrate and a supporting layer, the patent enables the use of thinner glass or alternative flexible materials without compromising structural integrity. This reduces the difficulty of manufacturing thin substrates and lowers the failure rate associated with handling and processing ultra-thin glass during the manufacturing process.
3Reliability
If plastic substrate is used to replace glass, then the display becomes more flexible and less fragile, but the substrate is prone to scratches, contamination, and aging
Solution Approach 1:
The patent combines a flexible plastic substrate with a rigid supporting layer to create a composite structure that leverages the advantages of both materials. The plastic substrate provides flexibility and impact resistance, while the supporting layer (which can be made of more scratch-resistant material) protects against scratches, contamination, and aging, thus resolving the contradiction between flexibility and surface durability.
Solution Approach 2:
The supporting layer is strategically positioned to provide localized protection to the plastic substrate in areas most susceptible to scratches and contamination, such as the outer surfaces and edges. This localized reinforcement allows the plastic substrate to maintain its overall flexibility and impact resistance while gaining targeted protection where needed.
4Strength
If supporting layer is added to enhance stiffness, then the display becomes more rigid and drop-resistant, but the alignment accuracy during assembly improves
Solution Approach 1:
The composite structure of flexible substrate and rigid supporting layer creates a stable assembly platform with defined mechanical properties. The supporting layer provides sufficient rigidity to maintain precise alignment during assembly operations, while the overall structure remains flexible enough to accommodate slight adjustments and reduce assembly stress, thereby improving both stiffness and alignment accuracy.
Data Source
AI summary
A method for manufacturing a display is provided. A display including a supporting layer, a flexible layer and a display structure is provided. The display structure has a top side and a bottom side which are opposite to each other. One of the supporting layer and the flexible layer is disposed at the bottom side of the display structure, and the other one of the supporting layer and the flexible layer is disposed at the top side or the bottom side of the display structure. When the supporting layer and the flexible layer are both disposed at the bottom side of the display structure, the flexible layer is located between the supporting layer and the display structure.