Display Device Pickup Assembly with Vision Hole and Elastic Pressing
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Solution Overview
Problem
The manufacturing of display devices faces challenges in reducing processing time and error rates during the transfer and handling of unit substrates, particularly when multiple processes are performed in different locations, requiring efficient transportation and alignment methods.
Innovation Solution
An apparatus and method involving a pickup assembly with a pressing pad, vision camera, and suction picker are used to accurately identify and lift unit substrates, featuring a vision hole and elastic pressing portion to minimize damage and ensure precise alignment and vacuum suction for efficient transfer.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple processes are performed in different places with transportation means, then manufacturing flexibility is improved, but processing time increases and stability decreases
Solution Approach 1:
The patent combines multiple functions (pressing, vision recognition, and suction/lifting) into a single integrated assembly that operates in one location. The pressing pad with integrated vision hole and suction picker eliminates the need for separate transportation steps between pressing and lifting operations, thereby reducing processing time while maintaining manufacturing flexibility through the coordinated functionality of the unified assembly.
2Adaptability or versatility
If transportation means are used to transfer elements between places, then manufacturing adaptability is improved, but stability and speed of transfer deteriorate
Solution Approach 1:
By merging the pressing function and suction lifting function into a single assembly that remains in one location, the patent eliminates transfer operations entirely. The pressing pad and suction picker work together in situ, ensuring stable and reliable operation without the instability and speed limitations associated with transporting elements between separate processing locations.
3Speed
If conventional picking method is used without pressing, then handling speed is maintained, but error rate increases due to inaccurate alignment recognition
Solution Approach 1:
The pressing action is performed before the suction lifting to preliminarily flatten the substrate and ensure proper alignment of the vision mark. This preliminary pressing step improves the accuracy of alignment recognition by the vision camera, thereby reducing error rates while maintaining handling speed through the integrated design that performs both actions in sequence without requiring separate operations.
4Force
If rigid pressing pad is used, then pressing force is sufficient, but substrate may be damaged
Solution Approach 1:
The pressing pad is made of elastic material that can deform under pressing force to conform to the substrate surface. This flexibility allows the pad to apply sufficient pressing force to flatten the substrate and enable accurate vision recognition, while simultaneously preventing damage to the substrate by distributing the force evenly and adapting to the substrate's contours.
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 reduces processing time and error rates by enabling precise recognition of alignment marks and secure lifting of substrates, facilitating faster and more reliable handling and transfer within the manufacturing process.
Implementation Method 1
vacuum suction for efficient transfer
Data Source
AI summary
An apparatus for manufacturing a display device and a method for manufacturing a display device are provided. According to an exemplary embodiment of the present disclosure, an apparatus for manufacturing a display device includes: a pressing pad including a body portion and a vision hole penetrating the body portion; a vision camera above the vision hole; and a suction picker near the pressing pad.