Intersecting Support Frame Mask Assembly for Display Deposition
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Solution Overview
Problem
Existing display device manufacturing methods face challenges in reducing deformation and achieving precise deposition patterns, particularly in miniaturized and bendable display devices, where the deposition area often differs from the display area, leading to inaccuracies and potential damage.
Innovation Solution
The apparatus and method involve a mask assembly with intersecting support frames and a deposition source, where the mask assembly includes a mask frame with opening areas and support frames that intersect, allowing for precise alignment and deposition on a substrate, reducing deformation and ensuring the deposition area matches the display area.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If a conventional mask assembly is used for deposition, then the deposition area can be formed, but the deposition area differs from the display area, leading to deposition inaccuracies
Solution Approach 1:
The mask assembly is segmented into a mask frame and multiple support frames (first support frame and second support frame) that intersect to divide the deposition area into multiple regions. This segmentation allows precise control over the deposition area to match the display area dimensions, eliminating the mismatch problem in conventional single-piece mask designs.
2Adaptability or versatility
If miniaturized components are used to increase display device functionality, then the display device becomes more capable, but deformation increases during manufacturing
Solution Approach 1:
The support frames are positioned at specific locations (intersecting across the opening area) to provide localized structural reinforcement where needed. This local quality approach strengthens the mask assembly at critical points without requiring overall miniaturization, thereby preventing deformation while maintaining the ability to accommodate miniaturized display components.
3Ease of manufacture
If the mask assembly structure is simplified, then manufacturing becomes easier, but alignment precision between support frames deteriorates
Solution Approach 1:
The mask frame serves as an intermediary structure that connects and aligns the first support frame and second support frame. The support frames are disposed with ends on the mask frame, creating a stable triangular or rectangular configuration that ensures precise alignment while maintaining ease of manufacture through modular assembly.
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
This approach enables precise deposition of materials on the display device, minimizing deformation and ensuring accurate patterns, thus enhancing the manufacturing process and reducing damage to the substrate, resulting in improved display device quality.
Implementation Method 1
depositing a deposition material on the substrate by passing the deposition material through the mask assembly
Data Source
AI summary
Disclosed is an apparatus and method of manufacturing a display device. The apparatus includes a deposition source, and a mask assembly disposed between a substrate and the deposition source, the mask assembly includes a mask frame having an opening area, a first support frame disposed across the opening area in a first direction, and having both ends disposed on the mask frame, and a second support frame disposed across the opening area in a second direction, and having both ends disposed on the mask frame, the first support frame and the second support frame intersect each other, one of the first support frame and the second support frame includes an accommodation portion, and the other of the first support frame and the second support frame is inserted into the accommodation portion.