Display Panel Transmission-Area Groove for Moisture Prevention
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Display panels face issues with moisture penetration in transmission areas, leading to potential defects, and there is a need for improved moisture prevention and manufacturing efficiency.
Innovation Solution
A display panel design featuring a substrate with a transmission area, display area, and intermediate area, incorporating a groove with stacked metal and inorganic layers, and a concave portion in the second sublayer to enhance moisture prevention, along with a light emitting device and encapsulation layer for improved protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a transmission area is added to the display panel to enable additional functions, then the versatility and functionality of the display apparatus is improved, but the risk of moisture penetration and defects in the transmission area increases
Solution Approach 1:
The intermediate area is divided into multiple metal sublayers (first sublayer, second sublayer, third sublayer) stacked sequentially. This segmentation creates a multi-barrier structure that effectively blocks moisture penetration pathways while maintaining the structural integrity needed for the transmission area to function.
Solution Approach 2:
The groove structure combines multiple materials including metal layers (first sublayer, second sublayer, third sublayer), inorganic layers, and organic layers. This composite material approach creates enhanced moisture barrier properties by combining the protective characteristics of different materials in a layered configuration.
2Reliability
If a groove with stacked metal and inorganic layers is formed in the intermediate area to prevent moisture penetration, then the moisture prevention performance is improved, but the device complexity and manufacturing difficulty increase
Solution Approach 1:
The groove structure extends vertically through multiple layers (metal sublayers, inorganic layers, organic layers) creating a three-dimensional barrier. This vertical dimensionality provides enhanced moisture protection by blocking penetration pathways at multiple depth levels rather than relying solely on a two-dimensional surface barrier.
Solution Approach 2:
The groove structure is formed by nesting multiple protective layers within each other - the first sublayer, second sublayer, and third sublayer are sequentially stacked, with inorganic layers and organic layers nested within the groove structure. This nested configuration maximizes protective coverage while efficiently utilizing the vertical space.
3Reliability
If a groove with multiple stacked layers is formed in the intermediate area, then the moisture penetration prevention is improved, but the manufacturing process complexity and time increase
Solution Approach 1:
The groove structure is formed preliminarily in the intermediate area before final encapsulation layers are applied. By pre-forming the multi-layer groove structure with metal sublayers, inorganic layers, and organic layers, the patent establishes moisture barriers early in the manufacturing process, preventing moisture ingress before it can reach sensitive components during subsequent manufacturing steps.
Data Source
AI summary
A display panel and a method of manufacturing the display panel are provided. The display panel includes: a substrate including a transmission area, a display area surrounding the transmission area, and an intermediate area between the transmission area and the display area; a light emitting device; and a groove in the intermediate area and including a first opening of a metal layer including a first, second, and third sublayers sequentially stacked and a second opening of an inorganic layer covering the metal layer, wherein the first opening includes a first opening of the first sublayer, a second opening of the second sublayer, and a third opening of the third sublayer, which overlap each other, and an inner surface of the second sublayer includes a concave portion recessed in a direction farther away from a center of the first opening than inner surfaces of the first and third sublayers.