OLED Display Panel Groove Anchoring Sealant Peeling
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Solution Overview
Problem
Current OLED display panels face issues with encapsulation, as the resin adhesive used to protect the light-emitting devices can peel off during bending or assembly, exposing the devices to moisture and oxygen, which reduces their service life.
Innovation Solution
A display panel design featuring a base with grooves and first fixing components embedded in these grooves, where the second portion of the fixing component is embedded in a sealant, enhancing the adhesion and preventing peeling, and the sealant covers the light-emitting devices to prevent moisture and oxygen ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If resin adhesive is used to encapsulate light-emitting devices, then the devices are protected from moisture and oxygen, but the adhesive can peel off during bending or assembly, exposing devices to harmful factors
Solution Approach 1:
The base is divided into different regions with grooves formed at specific locations. The fixing component is segmented into a first portion embedded in the groove and a second portion extending outward, creating a multi-level anchoring structure that prevents peeling while maintaining encapsulation integrity.
Solution Approach 2:
The grooves are formed in advance on the base before the sealant is applied. This preliminary structuring of the base allows the sealant and fixing components to mechanically interlock, preventing peeling during subsequent bending or assembly operations.
2Object-affected harmful factors
If the sealant is applied directly on the base, then the light-emitting devices are covered, but the sealant peels off during bending or assembly
Solution Approach 1:
The base is modified locally at specific positions with grooves to create enhanced anchoring zones. These localized structural changes provide superior adhesion exactly where the sealant is applied, preventing peeling while maintaining the overall encapsulation structure.
Solution Approach 2:
The encapsulation structure combines the base material, groove structure, sealant, and fixing component into a composite system. This multi-material approach creates synergistic effects where each material contributes its unique properties to achieve both protection and stability.
3Strength
If the fixing component is embedded in the groove, then the connection between sealant and base is strengthened, but the device structure becomes more complex
Solution Approach 1:
The fixing component merges the first portion embedded in the groove with the second portion extending outward into a single integrated structure. This combination achieves strong mechanical anchoring while maintaining a relatively simple overall form that does not significantly increase device complexity.
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 solution effectively strengthens the connection between the sealant and the base, preventing the sealant from peeling off and ensuring the encapsulation of light-emitting devices, thereby extending their service life and maintaining their performance during bending or assembly processes.
Implementation Method 1
the first portion of the first fixing component is embedded in a groove, the second portion of the first fixing component is embedded in the sealant
Data Source
AI summary
A display panel has a display area and a frame area located at at least one side of the display area. The display panel includes a base, at least one groove, a plurality of light-emitting devices, at least one first fixing component, and a sealant disposed at least in the frame area. At least one groove is arranged at a side of the base, and the at least one groove is located in the frame area. Each first fixing component includes a first portion and a second portion, and the first portion of the first fixing component is embedded in a groove. The sealant is located at the side of the base having the at least one groove, and the second portion of the first fixing component is embedded in the sealant.