Display Cell Seal Structure for Narrow Bezel Bonding
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Conventional display devices have a significant area occupied by cell seals, which can impact the display quality and aesthetics, particularly in thin bezel designs where minimizing the seal area is crucial for improved performance and appearance.
Innovation Solution
A display device with a reduced cell seal area is achieved by using a bonding filament that connects two glass substrates, where the filament has a specific width and refractive index gradient, and is formed using laser radiation techniques to create a narrow, efficient seal structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional cell seal structures are used to bond glass substrates, then reliable bonding is achieved, but the occupied area of the cell seal becomes large
Solution Approach 1:
The cell seal is divided into multiple bonding filaments (e.g., first bonding filament and second bonding filament) that are spaced apart from each other. This segmentation allows the seal structure to maintain bonding reliability through multiple discrete connection points while significantly reducing the overall occupied area compared to a continuous seal structure.
Solution Approach 2:
The bonding filaments have a filament-like structure with small cross-sectional dimensions (width and thickness both less than 100 micrometers). This thin-film approach enables the seal to occupy minimal area while still providing sufficient bonding strength between glass substrates.
2Shape
If the cell seal area is reduced to achieve narrow bezel structure, then aesthetic appearance and display quality improve, but bonding strength may be compromised
Solution Approach 1:
Multiple bonding filaments are distributed around the periphery of the display device, creating multiple bonding points that collectively provide sufficient bonding strength. The segmented structure allows each filament to be thin (reducing bezel width) while the ensemble of filaments maintains overall bonding reliability.
Solution Approach 2:
The bonding filaments are made of glass material that is compatible with the glass substrates, creating a composite bonding structure. This material compatibility ensures strong bonding while allowing the filaments to be formed with small cross-sectional dimensions for narrow bezel design.
3Area of stationary object
If bonding filaments with small cross-section are used to reduce seal area, then manufacturing precision requirements increase
Solution Approach 1:
The bonding filaments are formed with specific dimensional parameters (width and thickness both less than 100 micrometers) that balance area reduction with manufacturability. These parameter specifications provide clear manufacturing targets while maintaining the benefit of reduced seal area.
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
This approach reduces the area occupied by the cell seal, enabling a narrower bezel structure and potentially enhancing display quality by minimizing optical distortions and improving manufacturing precision.
Implementation Method 1
the bonding filament may include a central portion and a peripheral portion surrounding the central portion... formed using laser radiation techniques to create a narrow, efficient seal structure
Data Source
AI summary
A display device includes: a first substrate in which a display area and a non-display area disposed outside the display area are defined; a second substrate facing the first substrate; and a cell seal disposed on the non-display area, where the cell seal includes a bonding filament connecting the first substrate and the second substrate to each other.