Display Manufacturing Transport Line Simulation for Unit Distribution

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Solution Overview

Problem

Existing display device manufacturing processes face inefficiencies due to suboptimal operation rates of transport units, leading to either insufficient processing speed or traffic congestion, which affects the overall efficiency of the transport line.

Innovation Solution

An apparatus and method that utilize a controller with a transport line simulation unit to simulate and adjust the distribution of transport units along a transport path, ensuring operation rates fall within a designated range by generating and modifying transport line distribution models based on operation plans and real-time data, thereby optimizing the movement of transport units between processing lines.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If the number of transport units is increased to improve processing speed, then productivity increases, but device complexity and cost increase

Engineering Contradiction:
Improveprocessing speedVSAvoidnumber of transport units
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system dynamically adjusts the number of transport units deployed on the transport path based on real-time operation rates and workload demands. The controller monitors operation rates and selectively activates or deactivates transport units to match actual processing needs, transforming a static fleet into a dynamic, adaptable system that optimizes productivity without permanently increasing device complexity

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The controller changes the operational parameter of transport unit deployment by adjusting the number of active transport units based on calculated operation rates. When operation rates indicate underutilization, the system reduces the number of active units; when congestion is detected, it increases deployment, thereby optimizing productivity while managing device complexity through parameter adjustment rather than fixed configuration

Inventive Principle:
Principle #35Parameter changes

2Reliability

If the number of transport units is increased to prevent traffic congestion, then reliability improves, but device complexity increases

Engineering Contradiction:
Improvetransport line efficiencyVSAvoidnumber of transport units
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The controller implements a feedback mechanism that continuously monitors operation rates of transport units and adjusts the number of active units accordingly. When operation rates approach thresholds indicating potential congestion, the system activates additional transport units; when rates indicate sufficient capacity, it deactivates units. This closed-loop feedback system maintains reliability by preventing congestion without requiring a permanently large fleet of transport units

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The system transforms the transport unit fleet from a static configuration into a dynamic system that adapts its size based on real-time operational conditions. By selectively activating or deactivating transport units according to monitored operation rates, the system maintains high reliability and prevents traffic congestion while avoiding the device complexity and cost associated with maintaining a permanently large number of transport units

Inventive Principle:
Principle #15Dynamics

3Productivity

If transport units are optimally distributed to maintain operation rates within designated range, then productivity is optimized, but device complexity increases due to simulation and control systems

Engineering Contradiction:
Improvetransport line efficiencyVSAvoidcontrol system complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The controller employs feedback mechanisms that monitor operation rates of transport units and automatically adjust unit distribution to maintain rates within designated ranges. The simulation unit predicts optimal distributions based on current conditions, and the controller implements these adjustments in real-time. This automated feedback loop optimizes productivity while managing control system complexity by replacing manual optimization with algorithm-driven autonomous control

Inventive Principle:
Principle #23Feedback

Solution Approach 2:

The simulation unit creates virtual models (copies) of the transport line and transport units to test and optimize distribution strategies without affecting the physical system. By simulating various scenarios and calculating optimal distributions in a virtual environment, the system can determine productivity-optimizing configurations before implementing them physically, thereby optimizing productivity while containing control system complexity through virtual prototyping

Inventive Principle:
Principle #26Copying

Data Source

PatentEP4345544A1Apparatus and method for manufacturing display device
Publication Date: 2024.04.03 SAMSUNG DISPLAY CO LTD
  • EP4345544A1 patent drawingFigure 1
  • EP4345544A1 patent drawingFigure 2
  • EP4345544A1 patent drawingFigure 3

AI summary

In an apparatus for manufacturing a display device, the apparatus includes: a plurality of processing lines comprising a plurality of processing units; a transport line between the plurality of processing lines, the transport line comprising a plurality of transport units configured to move along a transport path to take in or take out transport goods to or from the plurality of processing units; and a controller configured to control the plurality of transport units, wherein the controller comprises a transport line simulator configured to simulate a transport line distribution model for distributing the plurality of transport units, by calculating a number of the plurality of transport units arranged on the transport path, such that operation rates of the plurality of transport units are within a designated range.