Organic Light-Emitting Display Getter Housing Groove
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Organic light-emitting display devices are prone to moisture penetration, which can lead to deterioration, and existing sealing methods using metal layers or glass plates increase device thickness and complicate the sealing process.
Innovation Solution
An organic light-emitting display device with a getter-housing groove system, where a getter is interposed between the substrate and a sealing sheet, and an adhesive layer bonds the sealing sheet to the substrate, allowing for increased getter filling and improved sealing without adding thickness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a metal layer or glass plate is used to seal the organic light-emitting display device, then moisture penetration is reduced or prevented, but the device thickness increases and the sealing process becomes complicated
Solution Approach 1:
The patent uses a flexible sealing sheet made of thin film material to replace traditional metal layers or glass plates. This thin film sealing sheet provides effective moisture and oxygen barrier properties while maintaining a compact device structure with reduced thickness. The flexible nature of the thin film allows for simplified sealing process without requiring complex assembly steps.
2Reliability
If a metal layer or glass plate is used to seal the organic light-emitting display device, then moisture penetration is reduced or prevented, but the sealing process becomes complicated
Solution Approach 1:
The flexible sealing sheet can be easily conformally attached to the device structure, simplifying the sealing process. The thin film nature allows for straightforward integration without requiring complex alignment or assembly procedures needed for rigid metal or glass sealing structures.
3Length of stationary object
If the sealing sheet is made as a flexible thin film sheet, then device thickness is reduced and sealing process is simplified, but getter filling amount is insufficient
Solution Approach 1:
The patent introduces a groove structure within the sealing sheet that extends in the thickness direction, creating a three-dimensional space for getter placement. This dimensional feature allows increased getter volume to be accommodated within the thin film structure, solving the contradiction between thin profile and sufficient getter quantity for long-term moisture protection.
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 getter-housing groove system effectively increases the getter filling amount, extending the life of the organic light-emitting display device by enhancing moisture and oxygen barrier properties without complicating the sealing process or increasing device thickness.
Implementation Method 1
an adhesive layer comprising an adhesive, which bonds the sealing sheet onto the substrate
Implementation Method 2
a getter, which is interposed between at least a portion of the substrate and the sealing sheet
Data Source
AI summary
An organic light-emitting display device including a substrate; a sealing sheet, which covers the substrate; a getter, which is interposed between at least a portion of the substrate and the sealing sheet; and an adhesive layer comprising an adhesive, which bonds the sealing sheet onto the substrate, wherein a getter-housing groove is in surfaces of the sealing sheet and the adhesive layer facing the substrate, and the getter is located in the getter-housing groove.