Mobile Target Coating Device Infrared Temperature Control
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Solution Overview
Problem
Existing methods for preparing organic light-emitting devices using mobile targets face issues with film uniformity due to temperature anomalies during the coating process, leading to deterioration in film formation quality.
Innovation Solution
A mobile target coating device equipped with an infrared temperature detecting section and an infrared heating section, which ensures stable surface temperature of the moving target source by synchronously detecting and adjusting temperature discrepancies, maintaining uniformity throughout the coating process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mobile target is used for coating to improve target utilization rate, then productivity is improved, but temperature anomalies occur during the coating process leading to film uniformity deterioration
Solution Approach 1:
The patent employs an infrared temperature detection device to continuously monitor the target surface temperature during the coating process. The detection device provides real-time feedback on temperature distribution, enabling the control system to identify temperature anomalies and adjust heating parameters accordingly, thereby maintaining film uniformity while using a mobile target
Solution Approach 2:
The patent dynamically adjusts heating parameters based on detected temperature conditions. By changing heating power, heating duration, or heating zone distribution in response to temperature measurements, the system compensates for temperature anomalies caused by target movement, ensuring consistent film quality throughout the coating process
2Device complexity
If the target surface temperature is not stabilized, then the coating process is simpler, but film formation quality deteriorates due to temperature anomalies
Solution Approach 1:
The patent replaces complex mechanical temperature control mechanisms with an infrared-based non-contact detection and control system. This substitution maintains relative simplicity while enabling precise temperature monitoring and control, ensuring film formation quality without requiring complex physical intervention
Solution Approach 2:
The system implements self-regulating temperature control where the detection device automatically monitors temperature conditions and the control system autonomously adjusts heating parameters. This self-service mechanism maintains film quality without requiring constant manual intervention, balancing simplicity with quality control
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 ensures uniform film formation, improving the quality and efficiency of organic light-emitting devices by maintaining consistent target surface temperatures, thereby enhancing the target utilization rate and reducing production costs.
Implementation Method 1
an infrared temperature detecting section (3) for detecting a surface temperature of the target source (1)
Implementation Method 2
an infrared heating section (4) for heating the target source (1)
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
Disclosed is a coating device with a moving target. The coating device comprises: a target (1); a target support unit (2) configured to support and move the target (1); an infrared temperature detecting unit (3) configured to detect a surface temperature of the target (1); an infrared heating unit (4) configured to heat the target (1); and a control unit (10) configured to receive a detection signal from the infrared temperature detecting unit (3) and determine if the surface temperature of the target (1) is uniform. The control unit (10) is also configured to control the infrared heating unit (4) in a way such that the infrared heating unit (4) heats a portion of the target (1) having a lower surface temperature and stops the heating once the surface temperature of the target (1) is uniform. Also disclosed is a coating method employing the coating device with the moving target.