Display Panel Sealing via Merged Package Area
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Solution Overview
Problem
In display panels with installation holes for hardware like cameras and sensors, the exposure of organic function layers and cathodes to water and oxygen leads to poor display performance due to the inability to effectively seal the active display area, reducing user satisfaction and display quality.
Innovation Solution
A display panel design featuring a closed package area around installation holes with an inorganic packaging layer extending into the inter-hole area and an organic packaging layer confined within the package area, eliminating the need for spacer columns and dams between holes, thus reducing the package area and increasing the active display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a package area is provided around each installation hole to prevent water and oxygen invasion, then the organic function layer is protected, but the active display area is significantly decreased
Solution Approach 1:
The patent merges multiple separate package areas into a single integrated package area that surrounds multiple installation holes. Instead of providing individual package areas around each hole, the invention creates one continuous package area that encloses all installation holes and extends between them, thereby reducing the total area occupied by packaging structures while maintaining protection of the organic function layer.
2Area of stationary object
If installation holes are provided in the display area for hardware, then full screen design is achieved, but organic function layer and cathode are exposed to water and oxygen
Solution Approach 1:
The patent applies local quality by providing packaging structures with different properties in different regions. The inorganic packaging layer extends into the inter-hole area between installation holes to provide localized protection where the organic function layer is most vulnerable, while the organic packaging layer is confined within the package area. This creates region-specific protection that addresses the exposure problem without requiring complete coverage of the entire display area.
3Reliability
If multiple separate package areas are provided around each installation hole, then each hole is protected, but the package area increases and active display area decreases
Solution Approach 1:
The patent merges multiple separate package areas into a single integrated package area that surrounds multiple installation holes. Instead of providing individual package areas around each hole, the invention creates one continuous package area that encloses all installation holes and extends between them, thereby reducing the total area occupied by packaging structures while maintaining protection of the organic function layer.
Solution Approach 2:
The integrated package area serves multiple functions simultaneously: it protects multiple installation holes from water and oxygen invasion, provides structural support between holes, and defines a single boundary for the active display area. This multi-functional design eliminates the need for separate protective structures around each hole.
Data Source
AI summary
A display panel, a method for preparing the same and a display device are provided. The display panel comprises: single package area which is single and closed; a surrounded area enclosed by the package area, with at least two installation holes formed therein and apart from each other, the at least two installation holes comprising a first installation hole and a second installation hole; and an active display area defined to surround the package area within the display area; and in a plane perpendicular to the display panel, the display panel comprises a substrate, an insulation layer and a packaging structure layer, all being stacked, the packaging structure layer comprising an inorganic packaging layer extending into an inter-hole area between the first installation hole and the second installation hole in the surrounded area, and an organic packaging layer not extending into the surrounded area.