Display Panel Dam Unit Inorganic Layer Corner Encapsulation
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Solution Overview
Problem
Conventional display panels face challenges in maximizing the display area while minimizing the non-display area, particularly in corner regions where image display is limited due to structural constraints.
Innovation Solution
The display panel incorporates a substrate with a thin film encapsulation layer and a dam unit, featuring an inorganic layer with protrusion tips that extend into grooves between dams, allowing for extended corner display areas and efficient encapsulation, thereby increasing the display area and reducing the peripheral non-display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If the display area is extended to include corner display areas, then the display area proportion is improved, but the structural complexity of the encapsulation layer increases
Solution Approach 1:
The thin film encapsulation layer is divided into multiple functional layers: a first inorganic encapsulation layer extending over the display area, an organic encapsulation layer, and a second inorganic encapsulation layer. This segmentation allows each layer to perform specific functions, with the inorganic layers providing protection and the organic layer providing flexibility, thereby enabling corner display area extension while managing structural complexity.
Solution Approach 2:
The first inorganic encapsulation layer extends not only over the display area but also over the peripheral area surrounding the display area. This extension into the peripheral dimension allows the encapsulation layer to accommodate corner display areas while maintaining the integrity and protection of the display structure.
2Area of stationary object
If the display area is extended into corner regions, then the non-display area is reduced, but the manufacturing precision requirements increase
Solution Approach 1:
By dividing the encapsulation layer into multiple segments (first inorganic layer, organic layer, second inorganic layer), the patent reduces the precision requirements for manufacturing. Each layer can be deposited and processed independently, with the first inorganic layer providing a stable base, the organic layer adding flexibility, and the second inorganic layer providing final protection, thereby easing the overall manufacturing precision burden.
Solution Approach 2:
The use of composite materials combining inorganic and organic layers creates a multi-functional encapsulation structure. The inorganic layers provide protection and stability, while the organic layer provides flexibility and conforms to the display structure. This composite approach allows for extended display areas including corners while maintaining manufacturing feasibility through the complementary properties of different materials.
Data Source
AI summary
The present disclosure relates to a display panel and a display apparatus. The display panel includes a substrate including a display area and a peripheral area around the display area, a display element disposed in the display area, a thin film encapsulation layer covering the display area and including a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer, and a dam unit including a plurality of dams disposed in the peripheral area. The plurality of dams include an inorganic layer, the inorganic layer is at least partially disposed on a side surface of an outermost dam among the plurality of dams, and the first inorganic encapsulation layer directly contacts the inorganic layer on a side surface of the outermost dam.