Display Panel Corner Reinforcement for Sealing Member Fracture
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Solution Overview
Problem
The challenge is to reduce the width of the frame in display panels while maintaining manufacturing efficiency and preventing breakage of sealing members and substrates due to residual strain during the manufacturing process.
Innovation Solution
A display panel design featuring a rectangular frame with reinforced portions protruding outward from the corners, where the side faces of these portions are cut to be flush with the substrates, allowing for efficient cutting and reducing the risk of substrate fracture by aligning with the residual strain regions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If the frame width is reduced to meet demand, then the aesthetic appearance and compactness are improved, but the sealing member becomes more prone to breakage and manufacturing efficiency decreases
Solution Approach 1:
The sealing member is segmented into a rectangular frame and separate reinforced portions at corner areas. This segmentation allows the main frame to be narrow while corner reinforcements provide additional strength without increasing overall frame width, resolving the contradiction between compactness and breakage resistance.
Solution Approach 2:
Reinforced portions are added locally at corner areas of the sealing member where stress concentration occurs during cutting. This local reinforcement provides targeted strength enhancement without increasing the overall frame width, maintaining both compactness and reliability.
2Productivity
If the frame width is reduced, then manufacturing efficiency may improve through faster processing, but the occurrence of breakage increases leading to lower yield
Solution Approach 1:
Reinforced portions are formed in advance during the sealing member formation process, before the cutting operation. This preliminary reinforcement ensures that corner areas are strengthened prior to cutting, preventing breakage during the cutting process while maintaining manufacturing efficiency.
3Reliability
If reinforced portions are added to the sealing member, then breakage resistance is improved, but the device complexity increases
Solution Approach 1:
The reinforced portions are localized specifically at corner areas where stress concentration occurs, rather than uniformly throughout the entire sealing member. This localized approach provides necessary strength enhancement while minimizing the increase in overall structural complexity.
Solution Approach 2:
The sealing member uses a composite structure combining the rectangular frame with reinforced portions at corners. This composite design integrates different functional elements (frame for sealing, reinforcements for strength) into a unified structure that achieves both reliability and manageable 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
This design effectively reduces the frame width and minimizes substrate fractures during cutting, enhancing manufacturing efficiency and yield by directing residual strain outside the reinforced areas.
Implementation Method 1
fusing (i.e., baking) the sealing material. Upon baking, the sealing material is termed a sealing member
Data Source
AI summary
A display panel comprises a first substrate, a second substrate arranged opposite the first substrate, electroluminescence elements disposed between the first substrate and the second substrate, and a sealing member provided between the first substrate and the second substrate, sealing the electroluminescence elements. The sealing member includes a rectangular frame formed along a perimeter of the electroluminescence elements and a reinforced portion protruding outward from a corner portion of the rectangular frame, the reinforced portion includes a first side face cut so as to be flush with at least one corner side face of the first substrate, and a second side face cut so as to be flush with a corresponding corner side face of the second substrate.