Multi-Syringe Dispenser for LCD Seal Pattern Formation
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Solution Overview
Problem
Existing methods for forming seal patterns on liquid crystal display panels, such as screen printing and seal dispensing, face issues with waste, damage to orientation films, and inefficiencies in productivity and space utilization, particularly when dealing with large or small-size panels and close spacing.
Innovation Solution
A dispenser system with multiple syringes aligned and affixed on supports allows for flexible and efficient dispensing of sealant onto substrates with varying numbers and arrangements of image display parts, enabling quick formation of seal patterns with minimal distance between panels and accommodating different panel sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screen printing method is used to form seal patterns, then seal patterns can be formed on the substrate, but sealant is wasted and orientation films may be damaged due to contact with the squeegee
Solution Approach 1:
The patent extracts the harmful elements (squeegee and screen mask) from the seal pattern formation process by adopting a dispenser system with syringes and nozzles. This allows sealant to be deposited directly onto the substrate without contact from rubbing tools, eliminating both sealant waste and orientation film damage while maintaining reliable seal pattern formation
Solution Approach 2:
The patent introduces a dispenser system with syringes and nozzles as an intermediary between the sealant source and the substrate. This intermediary enables precise, contactless deposition of sealant, replacing the direct mechanical contact method of screen printing and thereby preventing material waste and film damage
2Productivity
If multiple syringes are used to form seal patterns for multiple image display parts, then productivity can be improved, but the distance between adjacent syringes limits how close panels can be spaced
Solution Approach 1:
The patent segments the dispensing system into multiple independent syringes, each equipped with its own nozzle. This segmentation allows each syringe to operate independently and deposit sealant precisely at its designated location, enabling panels to be spaced closer together without the syringes interfering with each other's operation
Solution Approach 2:
The patent arranges multiple syringes and supports in a multi-dimensional configuration where supports are positioned at different locations and orientations. This spatial arrangement allows syringes to access closely spaced panels from optimal angles, overcoming the limitation of minimum spacing that would exist in a single-plane configuration
3Adaptability or versatility
If the dispenser system is configured to handle large-size panels, then it can accommodate bigger displays, but the system complexity increases
Solution Approach 1:
The patent designs the dispenser system with universal components that can accommodate different panel sizes. The syringes, nozzles, and supports are configured to be adjustable and repositionable, allowing the same system to handle both large-size and small-size panels without requiring completely different equipment, thereby reducing overall system complexity
Data Source
AI summary
A dispenser for a liquid crystal display panel includes a substrate on which a plurality of image display parts is formed, a table on which the substrate is loaded, a plurality of syringes for dispensing a material on the substrate, and a plurality of supports aligning and affixing the plurality of syringes, wherein at least a first predetermined number of the plurality of syringes is affixed and aligned to at least one of the plurality of supports.