Display Panel Self-Healing Sealing Layer Bezel Reduction
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing encapsulation methods for display panels face challenges in minimizing or eliminating the bezel area while ensuring protection against external moisture and oxygen, particularly for large-screen displays, and are vulnerable to external shocks.
Innovation Solution
A high-reliability display panel design featuring a substrate with a light emitting element, a protection layer, and self-healing layers with precursors that form a sealing layer between them, minimizing the bezel area and providing effective sealing without complex processes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If existing encapsulation methods (edge seal with frit) are used to protect against moisture and oxygen, then sealing protection is achieved, but the bezel area cannot be minimized and the structure is vulnerable to external shocks
Solution Approach 1:
The encapsulation structure is divided into multiple layers: a lower encapsulation layer formed before cutting that provides base sealing, and an upper encapsulation layer formed after cutting that seals the side surfaces. This segmentation allows each layer to serve specific sealing functions without requiring a large bezel area, resolving the contradiction between protection and minimal bezel.
Solution Approach 2:
The sealing approach transitions from a two-dimensional edge seal (frit around the periphery) to a three-dimensional encapsulation structure that seals both the lower surface and side surfaces. This dimensional change enables effective sealing without requiring additional bezel area, as the sealing extends vertically along the side surfaces rather than horizontally around the edges.
2Reliability
If existing encapsulation methods are used to ensure sealing protection, then moisture and oxygen blocking is achieved, but the manufacturing process becomes complex
Solution Approach 1:
The lower encapsulation layer is formed preliminarily before the substrate is cut into individual display panels. This preliminary action allows the base sealing structure to be created in bulk, simplifying the overall manufacturing process. The upper encapsulation layer is then formed after cutting to complete the sealing, dividing the complex sealing process into two simpler sequential steps.
3Reliability
If existing encapsulation methods are used for large-screen display panels, then sealing is provided, but the structure is vulnerable to external shocks
Solution Approach 1:
The encapsulation structure uses a composite of multiple materials and layers: the lower encapsulation layer, the upper encapsulation layer, and the sealing layer filling the space between them. This composite structure provides both sealing protection against moisture and oxygen while also enhancing resistance to external shocks through the combined mechanical properties of the layered structure.
4Area of stationary object
If the bezel area is minimized or removed to satisfy aesthetic requirements, then outward design is improved, but effective sealing against moisture and oxygen becomes difficult to achieve
Solution Approach 1:
The upper encapsulation layer acts as a flexible sealing film that conforms to the side surfaces of the substrate after cutting. This thin-film approach provides effective sealing without requiring a large bezel area, as the sealing is achieved through the flexible adaptation of the encapsulation layer to the panel edges rather than through a rigid wide bezel structure.
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 allows for a simple manufacturing process resulting in a display panel with minimal or no bezel area, enhanced anti-humidity protection, and improved reliability by simultaneously forming the sealing layer during the cutting process, preventing moisture and air intrusion.
Implementation Method 1
a sealing layer filling a space between the first self-healing layer and the second self-healing layer with materials resulting from reaction of the first precursor and the second precursor
Data Source
AI summary
Embodiments of the present disclosure relate to a display panel and a method of manufacturing the same. A high-reliability display panel with a reduced bezel area or substantially no bezel area and a method of manufacturing the same.