LCD Panel Silver Line Reliability via Color Resistance Layer
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Solution Overview
Problem
The existing side-bonding technology for liquid crystal display panels faces issues with silver lines breaking due to silver paste infiltration and significant attenuation of electrical signal transmission caused by contact with metal lines in the thickness direction.
Innovation Solution
A liquid crystal display panel design featuring a color resistance layer on the array substrate, with conductive components electrically connected to metal lines and silver lines that extend to the bonding terminal, increasing the contact area and reducing the risk of silver lines breaking and signal attenuation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If side-bonding technology is used to achieve narrow frame, then the frame width is reduced, but the silver lines break due to silver paste infiltration into the gap
Solution Approach 1:
A color resistance layer is introduced as an intermediary component between the array substrate and the bonding terminal. This layer prevents silver paste from infiltrating into the gap while maintaining electrical connectivity, thus resolving the contradiction between achieving narrow frame and preventing silver line breakage
Solution Approach 2:
The silver lines are configured to extend in multiple dimensions: horizontally along the bonding terminal and vertically through the color resistance layer to contact metal lines. This multi-dimensional arrangement provides alternative conduction paths, preventing complete signal interruption even if one path is compromised by paste infiltration
2Reliability
If silver lines contact metal lines in thickness direction for electrical connection, then electrical signal transmission is achieved, but serious attenuation occurs due to small contact area
Solution Approach 1:
The silver lines make contact with metal lines not only horizontally at the bonding terminal but also vertically through the color resistance layer. This creates multiple contact points and pathways, increasing the effective contact area and reducing signal attenuation through distributed conduction
Solution Approach 2:
The electrical connection path is segmented into multiple sections: horizontal contact at the bonding terminal, vertical penetration through the color resistance layer, and additional contact points within the display structure. This segmentation distributes the electrical load across multiple contact areas, reducing resistance and signal loss
Data Source
AI summary
The present disclosure provides a liquid crystal display panel, a color resistance layer is disposed on an array substrate corresponding to the bonding terminals, a plurality of conductive components are disposed on a surface of the color resistance layer and one-to-one electrically connected to metal lines, a first silver line is in contact with each of the metal lines and the conductive components corresponding to the metal lines in a thickness direction of the liquid crystal display panel, and a second silver line is in contact with a surface of the conductive components near the color filter substrate, to improve display effect of the liquid crystal display panel.