Display Panel Sealant with Varying Segment Widths
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Solution Overview
Problem
Existing liquid crystal display panels face challenges in achieving a sealant pattern with good design window flexibility and sharp, linear edges, which affects the yield rate and display quality due to potential undesired deformation and shape issues.
Innovation Solution
A display panel design featuring a sealant with a continuous one-piece pattern having varying segment widths, recesses, and hydrophobic surfaces that define the sealant's shape, ensuring accurate and linear edges, and the use of conductors within recesses to enhance compactness and efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a sealant is applied to surround the display medium layer, then the substrates are assembled and sealed, but the sealant pattern may experience undesired deformation and shape issues affecting yield rate and display quality
Solution Approach 1:
The sealant pattern is designed with varying widths across different segments (first segment with width W1, second segment with width W2, where W1 ≠ W2). This local variation in geometry allows different regions of the sealant to serve different functional purposes, improving overall reliability while maintaining manufacturing precision through controlled dimensional variations.
Solution Approach 2:
The sealant is applied in a specific pattern configuration before final assembly, with pre-defined varying widths and segmentations. This preliminary structuring of the sealant ensures that the pattern maintains its intended shape and linearity throughout the assembly process, preventing undesired deformation.
2Adaptability or versatility
If the sealant pattern has varying segment widths, then design window flexibility is improved, but pattern complexity increases
Solution Approach 1:
The sealant pattern is divided into multiple segments (first segment and second segment) with different widths. This segmentation provides design flexibility to adapt to various display configurations while managing complexity through modular, discrete sections rather than a monolithic pattern.
Solution Approach 2:
The sealant employs asymmetric width variations across segments, where the first segment has width W1 and the second segment has width W2. This asymmetric design enhances adaptability to different design windows while the systematic approach to asymmetry keeps the overall pattern complexity manageable.
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 improves the yield rate and display quality by maintaining the sealant's shape accuracy and reducing the influence of undesired shape deformations, resulting in a more reliable and efficient display panel.
Implementation Method 1
a hydrophobic surface facing the display medium layer and disposed on the at least one of the first substrate and the second substrate is further included
Data Source
AI summary
A display panel including a first substrate, a second substrate, a display medium layer and a sealant is provided. The second substrate is assembled with the first substrate. The display medium layer is disposed between the first substrate and the second substrate. The sealant is disposed between the first substrate and the second substrate, surrounds the display medium layer and includes a continuous one-piece pattern, wherein the continuous one-piece pattern includes a first segment and a second segment, and a difference between a width of the first segment and a width of the second segment is greater than or equal to a third of the width of the second segment.