Display Panel Pipeline Cleaning to Prevent Outlet Crystallization
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Solution Overview
Problem
During LCD manufacturing, discharge ports or air outlets on manufacturing devices can become blocked by crystallized drug liquids, leading to reduced stability and increased costs due to decreased yield and increased production expenses.
Innovation Solution
A display panel manufacturing device with a detection system controlling automatic valves for gas and liquid supply lines, using compressed gas to blow off residual liquids and deionized water to prevent crystallization, ensuring the stability of the manufacturing process and preventing photoresist loss.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If drug liquid is conveyed through the working pipeline during LCD manufacturing, then the manufacturing process can be completed, but the discharge port or air outlet becomes blocked by crystallized drug liquid
Solution Approach 1:
The patent introduces a gas supply pipeline with automatic valves that activate before the main manufacturing process to blow compressed gas through the working pipeline, preventing drug liquid from crystallizing and blocking the discharge ports. This preliminary protective action ensures the pipeline remains clear throughout the manufacturing process.
Solution Approach 2:
The patent uses compressed gas as an intermediary substance to prevent the harmful crystallization of drug liquid in the pipeline. The gas acts as a mediator that interacts with the drug liquid to prevent blockage, allowing the manufacturing process to proceed without interruption.
2Reliability
If automatic valve control system is added to prevent crystallization, then pipeline stability is improved, but device complexity increases
Solution Approach 1:
The patent employs automatic valves that are controlled by a control system receiving feedback from sensors that detect the presence and state of drug liquid in the pipeline. This feedback mechanism allows the system to automatically adjust valve positions to prevent crystallization without requiring complex manual intervention.
Solution Approach 2:
The system is designed to automatically monitor and control the gas supply to the working pipeline without external intervention. The automatic valves and control system work together to self-regulate the prevention of crystallization, reducing the need for complex external control mechanisms.
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 effectively reduces crystallization on outlets, maintains the stability of the manufacturing process, and decreases production costs by preventing photoresist loss and ensuring efficient operation of the manufacturing device.
Implementation Method 1
a gas supply means, communicating with the working pipeline via a gas supply pipeline... the gas supply means conveys a gas to the working pipeline... the gas is blown to a surface of the glass substrate via an air blade port
Implementation Method 2
a liquid supply means, communicating with the working pipeline via a liquid supply pipeline... the liquid supply means conveys deionized water to the working pipeline
Data Source
AI summary
The present application discloses a display panel manufacturing device and a cleaning method. The display panel manufacturing device includes: a machine table, a working pipeline, a gas supply means and a liquid supply means; a detection means is provided on the machine table; a first automatic valve is provided on a gas supply pipeline; and a second automatic valve is provided on a liquid supply pipeline.