Substrate Carrying Device with Signal Detection for TFT LCD Handling
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Solution Overview
Problem
In the production of TFT LCDs, substrates frequently undergo processes like thin film deposition and etching, requiring repeated handling which can cause bump damage due to irregular placement within support frames, affecting their regularity and safety.
Innovation Solution
A substrate carrying device equipped with a signal detecting device and control system that detects the regularity of substrates by transmitting and receiving signals along their side edges, determining relative displacement and preventing bump damage through real-time monitoring and alarm systems.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If substrates are repeatedly taken out and put into support frames by machine hand, then processing operations can be performed, but the regularity of substrate placement deteriorates causing bump damage
Solution Approach 1:
The patent applies preliminary action by detecting substrate placement regularity before handling operations. The detection device scans substrates and stores their position information, allowing the system to identify irregular placements beforehand and adjust handling parameters to prevent bump damage during subsequent operations.
Solution Approach 2:
The patent implements feedback by using detection devices to continuously monitor substrate positions and providing this information back to the control system. The control device processes detection signals and adjusts handling parameters based on the feedback, creating a closed-loop system that maintains placement regularity while enabling repeated processing operations.
2Adaptability or versatility
If machine hand operations are increased for substrate handling, then more processing steps can be completed, but the risk of bump damage increases
Solution Approach 1:
The system performs preliminary detection of substrate positions and identifies potential bump damage risks before handling operations. By storing detection information and analyzing it in advance, the system can prepare appropriate protective measures and handling parameters to mitigate damage risks during subsequent machine hand operations.
Solution Approach 2:
The detection and control systems work together in a feedback loop where substrate position information is continuously monitored and used to adjust handling parameters. This real-time feedback mechanism allows the system to adapt handling forces and motions to minimize bump damage while maintaining process versatility.
3Reliability
If detection devices are added to monitor substrate regularity, then substrate safety is improved, but device complexity increases
Solution Approach 1:
The patent uses detection devices as intermediaries between the substrates and the control system. These devices convert physical substrate positions into detectable signals that the control device can process, enabling safe substrate monitoring without requiring direct complex interaction between the control system and substrates themselves.
Solution Approach 2:
The patent replaces complex mechanical measurement systems with signal-based detection devices. Instead of using mechanical probes or contact-based measurement, the system uses detection devices that emit and receive signals (such as optical or electromagnetic signals) to determine substrate positions, simplifying the overall system while maintaining reliability.
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 device ensures the safety and regular placement of substrates by detecting irregularities and alerting operators, thereby reducing the risk of damage during handling and improving substrate safety.
Implementation Method 1
said signal transmitter transmits a detecting signal for detecting the side edges of the substrates along the height direction, said signal receiver receives said detecting signal
Data Source
AI summary
The present invention relates to a production apparatus of display device, and provides a substrate carrying device and a substrate regularity detecting method. The carrying device comprises: a carrying platform; a support frame; a signal transmitter; a signal receiver and a control device. The benefits of the invention are that by means of adopting the signal detecting device and the control device to detect the regularity of the substrates placed in the substrate carrying device, the detection of the placement of the substrates is realized, when some problems occurs, the operators can realize in time, the happening of bump damage to the substrates in the following process when taking out is avoided, and the safety of the substrates is increased.