Mask Assembly Waterproof Membrane Residual Cleaning Solution
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing mask assemblies used in display device manufacturing face challenges in removing cleaning solutions from narrow gaps, which can lead to residual cleaning solutions affecting the deposition process.
Innovation Solution
The proposed mask assembly includes a mask frame with a plurality of sides and an opening, supported by first and second support sticks with waterproof membranes, which reduce the residual cleaning solution by minimizing surface tension and facilitating easier drying.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a cleaning solution is used to remove deposition material from the mask assembly, then the deposition material is removed, but the cleaning solution remains in narrow gaps of the mask assembly
Solution Approach 1:
A waterproof membrane is introduced as a thin film component between the mask sheet and the support stick. This membrane creates a barrier that prevents the cleaning solution from penetrating into the narrow gaps between the mask sheet and support stick, thereby eliminating the harmful residual cleaning solution while maintaining effective cleaning of the mask assembly surface
Solution Approach 2:
The waterproof membrane acts as an intermediary element between the mask sheet and the support stick. It mediates the interaction between the cleaning solution and the narrow gaps, allowing the cleaning solution to clean the outer surfaces while blocking its entry into the gaps, thus resolving the contradiction between cleaning effectiveness and residual contamination
2Ease of manufacture
If the mask assembly structure is simplified, then the manufacturing process is easier, but cleaning solution remains in gaps affecting deposition quality
Solution Approach 1:
The waterproof membrane is a thin film component that can be easily integrated into the existing mask assembly structure. It adds minimal structural complexity while effectively preventing cleaning solution from entering narrow gaps, thereby maintaining deposition quality without significantly complicating the manufacturing process
Solution Approach 2:
The mask assembly is segmented into distinct functional layers: the mask sheet for deposition patterning, the waterproof membrane for preventing cleaning solution penetration, and the support stick for structural stability. This segmentation allows each component to perform its specific function optimally while maintaining overall manufacturability
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 use of waterproof membranes on the support sticks effectively reduces the amount of residual cleaning solution, improving the cleanliness of the mask assembly and enhancing the precision and quality of the deposition process in display device manufacturing.
Implementation Method 1
waterproof membranes, which reduce the residual cleaning solution by minimizing surface tension
Implementation Method 2
The first waterproof membrane may include a self-assembled monolayer
Implementation Method 3
The first waterproof membrane may include a self-assembled monolayer
Data Source
AI summary
A mask assembly includes a mask frame including a plurality of sides and an opening, a first support stick arranged on the mask frame to overlap the opening, the first mask stick extending in a direction parallel to one of the sides of the mask frame, a mask sheet arranged on the first support stick, the mask sheet extending in a direction parallel to one of the sides of the mask frame, and a first waterproof membrane arranged on a surface of the first support stick facing the mask sheet.