LCD Panel Sealant Inversion to Narrow Border Width
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Solution Overview
Problem
Conventional liquid crystal display (LCD) panel sealing methods result in a comparably large border due to excess sealant overlap, which is detrimental to the industry trend of providing a narrowed display panel.
Innovation Solution
The method involves deploying sealant along a predetermined path on a glass substrate, diverting the final stroke inward to create an enclosed pattern, ensuring the sealant does not extend beyond the starting stroke, and then sealing with a second substrate to minimize border width.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the sealant is applied by overlapping the starting point and the final end to create a contained rectangular space, then the sealing reliability is improved, but the border width increases
Solution Approach 1:
Instead of extending the final stroke outward to overlap the starting point (conventional method), the patent inverts the approach by directing the final stroke inward toward the center of the substrate. This inversion eliminates outward extension of the sealant border while maintaining the enclosed sealing function through the inward convergence of the final stroke with the starting stroke.
2Manufacturing precision
If the sealant is applied with a distance from the edge of the glass substrate to account for accuracy and tolerance, then the manufacturing precision is improved, but the border width increases
Solution Approach 1:
The patent changes the directional parameter of the final stroke from outward extension to inward direction. By modifying the trajectory parameter of the sealant application process, the border width parameter is reduced while maintaining the necessary clearance distance for manufacturing precision. The inward diversion of the final stroke creates a more efficient use of the available space.
Data Source
AI summary
The present invention discloses a method for applying sealant to seal a liquid crystal display panel, and it includes a step of deploying a sealant pattern on a first substrate. Wherein the sealant is deployed along a predetermined path of a first substrate from a starting stroke, and wherein when the final stroke of deployment of the sealant closes to the starting point, diverting the sealant inward to inner side of the first glass substrate such that a final stroke of the sealant is juxtaposed with the starting stroke of the sealant. By the disclosure of the present invention, the boarder generated by the sealant can be effectively narrowed and this is a meet to the industry trend of the liquid crystal display.