Display Seal Structure With Inorganic Layer for Moisture Blocking
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Solution Overview
Problem
Display devices face reliability issues due to poor adhesion of seal members, which allows external air and moisture to penetrate, affecting the longevity and performance of light emitting elements.
Innovation Solution
A display device design featuring a first substrate with an inorganic layer and color filter pattern layers in the non-display area, a second substrate with a light blocking member, and a seal member that contacts the color filter pattern layers and inorganic layer, improving adhesion and preventing air penetration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a seal member is used to block air penetration, then reliability is improved, but adhesion of the seal member deteriorates
Solution Approach 1:
The inorganic layer is formed on the first substrate before the seal member is applied. This preliminary formation of the inorganic layer creates a surface that enhances adhesion between the seal member and the substrate, thereby improving both adhesion strength and reliability of the sealing function
Solution Approach 2:
The patent uses a composite structure combining the inorganic layer with the seal member. The inorganic layer serves as an intermediate layer that provides both adhesion enhancement and sealing functionality, creating a composite system that achieves both strong adhesion and effective air penetration blocking
2Strength
If the seal member contacts the inorganic layer, then adhesion is improved, but manufacturing complexity increases
Solution Approach 1:
The inorganic layer serves multiple functions: it acts as a base layer for the display structure, provides adhesion enhancement for the seal member, and contributes to the overall sealing performance. By making this layer multi-functional, the patent improves adhesion without adding separate dedicated components, thus avoiding excessive manufacturing complexity
Data Source
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AI summary
A display device includes a first substrate including a display area and a non-display area, an inorganic layer disposed on the first substrate in the non-display area, color filter pattern layers disposed on the inorganic layer and spaced apart from each other, a second substrate facing the first substrate, a light blocking member disposed on a surface of the second substrate and not overlapping the color filter pattern layers in the non-display area, and a seal member disposed between the first substrate and the second substrate and contacting the color filter pattern layers and the inorganic layer.