Infrared Organic Compound Detection in Display Manufacturing
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Solution Overview
Problem
Existing display device manufacturing processes lack real-time detection capabilities for gas-phase organic compounds, leading to potential process defects due to disruptions in the supply or concentration of these compounds during atmospheric pressure equipment operations.
Innovation Solution
An apparatus comprising an infrared light emitting unit, a first window, and an infrared detection unit, with a second window including a calcium carbonate filter, is used to detect the concentration of organic compounds in real-time within atmospheric pressure equipment, preventing process defects by controlling the supply of gas-phase organic compounds.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If real-time detection of organic compound concentration is implemented, then manufacturing precision is improved, but device complexity increases
Solution Approach 1:
The patent replaces complex mechanical sampling and analysis systems with an infrared-based optical detection system. The infrared light emitting unit and detection unit directly measure organic compound concentration through atmospheric pressure equipment without requiring physical sampling, mechanical transport, or complex laboratory analysis, thereby improving manufacturing precision while avoiding excessive device complexity
Solution Approach 2:
The patent introduces infrared light as an intermediary medium to detect organic compound concentration. The infrared light interacts with the organic compounds in the process gas, and the detection unit measures the interaction to determine concentration, providing a non-intrusive real-time measurement method that maintains process integrity while enabling precise control
2Measurement precision
If windows with different infrared absorption regions are used, then measurement accuracy is improved, but device complexity increases
Solution Approach 1:
The patent applies local quality by assigning different infrared absorption characteristics to different windows based on their specific functional requirements. The first window (infrared transparent) is optimized for transmitting infrared light to the organic compound, while the second window (with calcium carbonate filter) is optimized for detecting specific infrared absorption bands. This localized optimization of window properties improves measurement precision without requiring a completely complex window system
Solution Approach 2:
The patent uses composite material strategies by combining different window materials with distinct infrared transmission properties. The calcium carbonate filter in the second window creates a composite structure that selectively transmits or blocks specific infrared wavelengths, enabling precise measurement of organic compound concentration while maintaining a relatively simple overall window design
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 apparatus enables real-time detection and control of organic compound concentrations, preventing process defects and ensuring continuous operation of atmospheric pressure equipment by accurately measuring and managing the supply of gas-phase organic compounds.
Implementation Method 1
an infrared light emitting unit that irradiates infrared rays toward a gas-phase organic compound used as a process gas in an atmospheric pressure equipment; an infrared detection unit that measures an infrared absorbance of the organic compound
Data Source
AI summary
An apparatus for detecting an organic compound and an apparatus for manufacturing a display device, the apparatus for detecting an organic compound including an infrared light emitting unit that irradiates infrared rays toward a gas-phase organic compound used as a process gas in an atmospheric pressure equipment; a first window that separates the organic compound from the infrared light emitting unit; an infrared detection unit that measures an infrared absorbance of the organic compound; and a second window that separates the organic compound from the infrared detection unit, wherein infrared absorption regions of the first window and the second window are different from an infrared absorption region of the organic compound.