Carrier With Electro Permanent Magnetic Chuck For Display Deposition
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Solution Overview
Problem
The existing manufacturing processes for display apparatuses are time-consuming and costly due to the complexity of aligning and depositing layers, requiring multiple chambers and lengthy maintenance procedures.
Innovation Solution
A carrier system with an electro permanent magnetic chuck and magnetic force portion is used to align and transport a mask assembly and display substrate, simplifying the deposition process by fixing the mask assembly using the chuck and applying a magnetic force to position it accurately over the substrate, thereby reducing misalignment and process time.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If a mask assembly is arranged inside a deposition unit in a manufacturing apparatus of a display apparatus according to the related art, then the deposition process can be performed, but it takes a long time and many processes to input a display substrate and the mask assembly into the deposition unit
Solution Approach 1:
The patent combines the mask assembly and display substrate onto a single carrier, allowing them to be transported together through the deposition unit. This merging of components eliminates the need for separate input processes, reducing the time and complexity of loading the deposition unit while maintaining efficient deposition operations
2Adaptability or versatility
If a chamber that is additionally provided is to be used to form various layers, then layer formation can be achieved, but the method and the apparatus itself are complicated, requiring a long time and high costs for maintenance of the manufacturing apparatus
Solution Approach 1:
The carrier is designed as a universal platform that can hold and transport both the mask assembly and display substrate simultaneously through the deposition unit. This multi-functional carrier eliminates the need for additional specialized chambers or complex handling mechanisms, reducing apparatus complexity while maintaining the ability to form various layers
3Reliability
If the mask assembly is fixed on the carrier using the electro permanent magnetic chuck, then the mask assembly can be securely held and positioned, but the magnetic force may cause misalignment if not properly controlled
Solution Approach 1:
The patent incorporates a vision system that detects the position of the mask assembly and provides feedback to the control unit. The control unit adjusts the magnetic force applied by the electro permanent magnetic chuck based on this feedback, dynamically optimizing both the fixation stability and alignment precision of the mask assembly during the deposition process
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 simplifies the deposition process, reduces misalignment, and allows for direct cleaning and maintenance of the mask assembly, leading to faster and more efficient layer deposition on the display substrate.
Implementation Method 1
an electro permanent magnetic chuck arranged on a boundary portion of the body portion and configured to selectively fix a mask assembly
Implementation Method 2
a magnetic force portion arranged in the body portion and configured to apply a magnetic force such that the mask assembly approaches the display substrate
Data Source
AI summary
A carrier, an apparatus for manufacturing a display apparatus and including the carrier, and a method of manufacturing a display apparatus are provided. The carrier includes a body portion; an electro permanent magnetic chuck arranged on a boundary portion of the body portion and configured to selectively fix a mask assembly; and a substrate fixing unit arranged in the body portion to selectively fix a display substrate.