Display Device Fusion Pattern Adhesion
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Solution Overview
Problem
Current display devices face challenges in achieving improved adhesion between the display panel and the encapsulation substrate, which affects the mechanical strength and durability of the device.
Innovation Solution
The implementation of a display device design that includes a display panel with a sealing member and support members, where the support members are fused with both the display panel and the encapsulation substrate, creating a fusion pattern that enhances adhesion and durability without overlapping light emitting elements, and a second fusion pattern in the sealing member to further secure the bond.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing member is disposed between the display panel and encapsulation substrate to bond them together, then adhesion between display panel and encapsulation substrate is improved, but the width of the sealing member increases which reduces the display area
Solution Approach 1:
The sealing structure is divided into two functional parts: a sealing member disposed in the non-display area for bonding, and support members with fusion patterns disposed in the display area for additional adhesion. This segmentation allows the sealing function to be distributed, enabling the sealing member width to be reduced while maintaining overall adhesion through the support members.
Solution Approach 2:
The support members are positioned at specific locations within the display area rather than forming a continuous sealing member across the entire width. This dimensional change from a continuous wide seal to discrete localized support points reduces the overall sealing member width while maintaining adhesion at critical locations.
2Reliability
If support members are disposed in the display area between the display panel and encapsulation substrate, then adhesion is improved, but the support members may overlap with light emitting elements causing interference
Solution Approach 1:
The support members are strategically positioned in specific local areas of the display panel where they provide adhesion without overlapping light emitting elements. The fusion patterns are localized to contact only the encapsulation substrate and display panel at designated points, ensuring local adhesion enhancement while avoiding interference with light emission regions.
3Area of stationary object
If the sealing member width is minimized to increase display area, then display area is increased, but adhesion between display panel and encapsulation substrate deteriorates
Solution Approach 1:
The adhesion function is segmented between the sealing member in the non-display area and multiple support members with fusion patterns in the display area. This allows the sealing member to be narrowed for increased display area while the support members compensate by providing distributed adhesion points throughout the display region.
Solution Approach 2:
The fusion pattern acts as an intermediary material between the support members, encapsulation substrate, and display panel. This intermediary layer enhances the bonding effectiveness of each support member, allowing stronger adhesion with smaller contact areas, thus enabling reduced sealing member width while maintaining overall adhesion.
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 significantly improves the adhesion and durability of the display device, enhancing its mechanical strength and light output efficiency while minimizing the width of the sealing member, thus increasing the display area.
Implementation Method 1
a first fusion pattern, at least a portion of which is disposed in each of the support members and the encapsulation substrate
Implementation Method 2
EP2549461 A1 discloses a display device comprising a sealing member made of frit and treated with laser light
Data Source
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AI summary
A display device includes a display panel (101) having a display area where light emitting elements are disposed and a non-display area surrounding the display area, an encapsulation substrate (500) disposed on the display panel at a distance from the display panel, a sealing member disposed in the non-display area between the display panel and the encapsulation substrate to bond the display panel and the encapsulation substrate together, support members (900) disposed in the display area between the display panel and the encapsulation substrate, and a first fusion pattern (FSP), a portion of which is disposed in the support members and the encapsulation substrate. The display area includes a first area (AA1) in which the support member and the first fusion pattern are disposed and a second area (AA2) in which no support member is disposed, and each of the light emitting elements is disposed in at least a portion of the second area.