Fusion Pattern Sealing Member Trench Display Panel
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Solution Overview
Problem
Display devices, such as organic light emitting displays, face challenges in durability against external impacts due to inadequate adhesion between the display panel and the encapsulation substrate, leading to potential damage from moisture and air.
Innovation Solution
A display device design that incorporates a sealing member and an encapsulation substrate fused together using a fusion pattern, where a trench is formed in the display panel to house the sealing member, and a pulsed laser is used to create a fusion pattern that mixes materials from the sealing member, display panel, and encapsulation substrate, enhancing adhesion without physical boundaries.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a sealing member is used to bond the display panel and encapsulation substrate together, then the adhesion between the display panel and encapsulation substrate is improved, but the durability against external impact is insufficient due to the presence of physical boundaries at the interface
Solution Approach 1:
The sealing member material is merged with the display panel and encapsulation substrate materials through a fusion pattern created by laser irradiation. This merging eliminates the physical boundaries at the interface between the sealing member and substrates, creating a continuous, integrated structure that maintains both strong adhesion and high durability against external impacts.
Solution Approach 2:
The physical and chemical parameters of the sealing member and substrate materials are changed through laser-induced fusion. The laser irradiation transforms the materials from separate, distinct phases to a fused state where their properties are modified, creating a gradient transition zone that eliminates sharp interfaces and enhances both adhesion and impact resistance.
2Strength
If a trench is formed in the display panel to house the sealing member, then the adhesion is enhanced through increased contact area, but the manufacturing complexity increases
Solution Approach 1:
The mechanical trench formation process is supplemented or replaced by laser-induced fusion. Instead of relying solely on mechanical trench formation and sealing member insertion, the laser fusion process creates a chemical and structural integration that enhances adhesion through material merging rather than just increased contact area, thereby reducing the need for complex trench structures.
3Reliability
If the sealing member, display panel, and encapsulation substrate are fused together using laser irradiation, then the adhesion and durability are significantly improved, but the manufacturing process complexity increases
Solution Approach 1:
The laser irradiation process is applied continuously along the sealing member to create a continuous fusion pattern. This continuous action ensures uniform fusion and eliminates physical boundaries throughout the entire interface, achieving consistent adhesion and durability improvements without requiring multiple discrete manufacturing steps.
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 significantly improves the adhesion between the display panel and the encapsulation substrate, enhancing the durability of the display device against external impacts by creating a strong, bonded interface.
Implementation Method 1
a pulsed laser is used to create a fusion pattern that mixes materials from the sealing member, display panel, and encapsulation substrate
Implementation Method 2
the sealing member, the display panel and the encapsulation substrate are partially fused
Implementation Method 3
a first fusion pattern is disposed inside the display panel, the sealing member and the encapsulation substrate where a trench is defined in the non-display area of the display panel and recessed from an upper surface of the display panel, the sealing member is inserted into the trench
Data Source
AI summary
A display device includes a display panel including a display area and a non-display area surrounding the display area, an encapsulation substrate disposed on the display panel, a sealing member disposed between the display panel and the encapsulation substrate to bond the display panel and the encapsulation substrate together and a first fusion pattern disposed inside the display panel, the sealing member and the encapsulation substrate, where the display panel comprises a trench formed in the non-display area and recessed into a portion of an upper surface of the display panel, the sealing member is inserted into the trench, and the first fusion pattern is disposed to overlap the trench.