Display Panel Separator Tip Protrusion for Reliability
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Solution Overview
Problem
Display panels face challenges in integrating various components within a limited space while maintaining reliability and efficiency, particularly in arranging light-emitting diodes and insulating layers to optimize display area and functionality.
Innovation Solution
A display panel design featuring a substrate with a display area, an opening area, and an intermediate area, including a light-emitting diode with a pixel electrode and opposite electrode, an inorganic insulating layer defining a groove, and a separator with metal layers, where the separator's tip protrudes to create a specific angle and height configuration, enhancing component separation and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of stationary object
If components are arranged in the display area to increase display area and add functions, then the display area and functionality are improved, but the reliability deteriorates due to potential impurity flow and component interference
Solution Approach 1:
The patent divides the display panel into distinct regions separated by grooves and inorganic insulating layers. The display area is segmented from the opening area through the intermediate area, with each region having specific components arranged within defined boundaries. This segmentation prevents impurity flow between regions while maintaining high display area utilization.
Solution Approach 2:
The patent introduces inorganic insulating layers and separators as intermediary structures between the display area and opening area. These intermediaries include grooves filled with inorganic insulating material and separator structures that act as barriers to prevent impurity flow, thereby maintaining reliability while allowing component arrangement in the display area.
2Reliability
If the separator tip protrudes higher to improve component separation, then the component separation and reliability are improved, but the device complexity increases
Solution Approach 1:
The patent applies local quality by making the separator tip protrude higher than other parts of the separator structure. Specifically, the tip extends above the upper surface of the inorganic insulating layer while the base remains embedded. This localized height variation provides enhanced component separation at critical interfaces without requiring the entire separator structure to be complex.
Data Source
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AI summary
A display panel includes a substrate including an opening area, a display area surrounding at least a portion of the opening area, and an intermediate area between the opening area and the display area, a light-emitting diode arranged in the display area and including a pixel electrode, an opposite electrode, and an intermediate layer between the pixel electrode and the opposite electrode, an inorganic insulating layer arranged in the intermediate layer and defining a groove surrounding the opening area, and a separator arranged in the intermediate area and including a first metal layer arranged in the groove and a second metal layer arranged on the first metal layer and having a tip protruding in a direction crossing an upper surface of the inorganic insulating layer.