Moisture Conveying Layer with Acute-Angle Flow Guide for OLED Packaging
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Organic light-emitting diodes (OLEDs) are sensitive to moisture, which can enter the packaging and reduce their service life due to airtightness degradation over time.
Innovation Solution
A moisture conveying layer with a specific structure, including a bottom wall, sidewalls, and a flow guide member forming a channel, where the flow guide member has an acute angle with the bottom wall and a hydrophilic surface, collects and conveys moisture to a water absorption layer, reducing moisture entry into the OLED.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a moisture conveying layer with a flow guide member at an acute angle is introduced, then moisture collection and conveyance efficiency is improved, but device structure complexity increases
Solution Approach 1:
A flow guide member is introduced as an intermediary element within the moisture conveying channel. This flow guide member, positioned at an acute angle relative to the bottom wall, acts as a mediator to direct moisture flow toward the discharge end while maintaining a simple overall structure. The flow guide member enables effective moisture conveyance without requiring complex external mechanisms.
2Ease of operation
If the flow guide member is positioned at an acute angle with the bottom wall, then moisture flow direction control is improved, but manufacturing precision requirements increase
Solution Approach 1:
The flow guide member is designed with a specific acute angle parameter relative to the bottom wall, which can be optimized within a range rather than requiring a single precise value. By defining acceptable parameter ranges for the angle, the design achieves effective moisture flow control while accommodating normal manufacturing tolerances, thus reducing the stringency of precision requirements.
3Productivity
If a hydrophilic surface is applied to the bottom wall, then moisture collection efficiency is improved, but material selection complexity increases
Solution Approach 1:
The hydrophilic surface treatment is applied locally to the bottom wall of the moisture conveying channel rather than to the entire device. This localized application of hydrophilic properties enables efficient moisture collection at the collection end while leaving other areas with different material requirements, thus reducing overall material selection complexity and enabling targeted functional optimization.
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 effectively prolongs the service life of OLEDs by efficiently collecting and removing moisture, thereby minimizing its impact on the device's performance.
Implementation Method 1
a bottom wall having a hydrophilic surface configured to be in contact with moisture, and each of the first sidewall, the second sidewall, the top wall and the flow guide member has a hydrophobic surface configured to be in contact with the moisture
Data Source
AI summary
Embodiments of the present disclosure provide a moisture conveying layer, a display panel having the moisture conveying layer, a display apparatus having the display panel, a method of manufacturing a moisture conveying layer, and a method of manufacturing a display panel. The moisture conveying layer includes: a bottom wall; a first sidewall and a second sidewall which are disposed opposite to each other, and which, together with the bottom wall, form a moisture conveying channel; and a flow guide member located between the first sidewall and the second sidewall. The flow guide member includes a first end connected to the bottom wall, and a second end, and an angle between the flow guide member and the bottom wall is an acute angle.