Display Seal Structure Using Inorganic Layer for Air Blocking
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Solution Overview
Problem
Display devices face challenges in improving the adhesion of seal members to prevent air penetration, which affects the reliability and durability of the device.
Innovation Solution
A display device design that includes a first substrate with a display area and a non-display area, featuring an inorganic layer, color filter pattern layers, a light blocking member, and a seal member. The seal member is positioned between the substrates, contacting the color filter pattern layers and the inorganic layer, with the light blocking member having openings that overlap the color filter pattern layers, enhancing adhesion and reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the seal member is positioned to contact only the substrates, then the structure is simple, but the adhesion is insufficient and air penetration occurs
Solution Approach 1:
The seal member contacts the inorganic layer as an intermediary between the substrate and the color filter pattern layers. This intermediate contact point enhances adhesion and prevents air penetration without requiring complex structural modifications to the seal member itself.
Solution Approach 2:
The solution moves the contact point of the seal member from a single-plane contact (substrate only) to a multi-dimensional contact configuration that includes the inorganic layer. This dimensional change allows the seal member to anchor at multiple points, improving adhesion while maintaining structural simplicity.
2Reliability
If the seal member contacts multiple layers, then adhesion improves, but the manufacturing precision requirements increase
Solution Approach 1:
The inorganic layer serves a dual function: it acts as part of the encapsulation structure and simultaneously provides an additional contact surface for the seal member. This self-service approach enhances adhesion without requiring external positioning aids or complex alignment mechanisms.
Solution Approach 2:
The inorganic layer is formed in advance during the manufacturing process, creating a pre-positioned contact surface for the seal member. This preliminary action ensures that the seal member has a predetermined anchoring point, reducing the need for high-precision real-time positioning during assembly.
3Illumination intensity
If the light blocking member has openings overlapping color filter layers, then display quality improves, but the structure becomes more complex
Solution Approach 1:
The light blocking member is segmented with openings that allow light to pass through to the color filter layers. This segmentation enables selective light blocking and transmission, improving display quality by preventing external light reflection while maintaining the structural simplicity of a single light blocking member component.
Data Source
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.