OLED Sealing Unit Penetration Hole Impact Dispersion
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Solution Overview
Problem
Existing organic light emitting diode (OLED) display devices are vulnerable to external impacts and moisture, which can damage the sealing units and allow gases to permeate, compromising the integrity of the organic emission layer.
Innovation Solution
A display device design featuring a sealing unit with a penetration hole that disperses external impacts and firmly couples the sealing substrate to the substrate, creating a vacuum seal to prevent damage and gas permeation, with the manufacturing method involving a mask with a sealing pattern to form the penetration hole and inject sealing material to enclose the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealing unit is used to seal the display panel, then the organic emission layer is protected from external moisture and gases, but the sealing unit is vulnerable to external impact and may be damaged
Solution Approach 1:
The sealing unit is divided into multiple sealing patterns arranged in parallel. Each sealing pattern acts as an independent sealing barrier, and the segmentation allows impact forces to be distributed across multiple segments rather than concentrated on a single continuous seal, improving impact resistance while maintaining protection integrity.
Solution Approach 2:
The sealing unit incorporates a penetration hole that passes through it, creating a porous structure. This penetration hole acts as a stress relief channel that absorbs and dissipates impact energy, preventing the sealing unit from cracking under external impact while still maintaining the sealing function against moisture and gases.
2Strength
If the sealing substrate and substrate are firmly coupled, then the sealing unit is protected from separation due to external impact, but the manufacturing process becomes more complex
Solution Approach 1:
The coupling between the sealing substrate and substrate is achieved by integrating the sealing patterns directly into the sealing unit structure during the manufacturing process. The sealing patterns serve dual functions as both the sealing barrier and the coupling mechanism, eliminating the need for separate coupling components and simplifying the manufacturing process.
Solution Approach 2:
The sealing patterns are formed in advance during the manufacturing process, creating pre-established coupling points between the sealing substrate and substrate. This preliminary formation of coupling structures ensures strong bonding from the outset and prevents separation under external impact without requiring complex post-assembly coupling operations.
Data Source
AI summary
A display device according to an exemplary embodiment of the present invention includes a substrate, a display panel disposed on the substrate, a sealing substrate which is disposed opposite to the display panel, and a sealing unit disposed between the substrate and the sealing substrate, enclosing the display panel. The sealing unit has a penetration hole which passes through the sealing unit in a vertical direction.