Robot Arm Gripper Pin Mechanism for Polarization Film Removal
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Solution Overview
Problem
The removal of a polarization structure from a display panel is challenging due to its adhesive nature, making it difficult to detach without damaging the panel during the fabrication process.
Innovation Solution
A robot arm system with a gripper and stopper mechanism is designed to securely grip and remove the polarization structure by rotating and using a pin to support the structure, allowing for easy detachment without damaging the display panel.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the polarization structure is removed using conventional methods, then the removal process becomes difficult and time-consuming, but the adhesive nature of the polarization structure causes damage risk to the display panel
Solution Approach 1:
The gripper is divided into multiple fingers (first gripper finger, second gripper finger, etc.) that can independently contact and grip different portions of the polarization structure. This segmentation allows for distributed gripping force application, enabling easy removal while preventing concentrated stress that could damage the display panel.
Solution Approach 2:
The polarization structure itself serves as an intermediary element between the gripper and the display panel. By gripping the polarization structure rather than applying force directly to the display panel, the system enables removal operation while the polarization structure absorbs the mechanical stress, preventing damage to the underlying display panel.
2Force
If the polarization structure is securely gripped for removal, then the gripping force must be strong, but strong gripping force may damage the adhesive layer or display panel
Solution Approach 1:
The gripping force is segmented and distributed across multiple gripper fingers that contact different regions of the polarization structure. This distribution allows the total gripping force to be sufficient for removal while no single point experiences excessive force that could damage the adhesive layer or display panel.
Solution Approach 2:
Different portions of the polarization structure receive different gripping forces from different gripper fingers. The gripping force is applied locally at optimal positions on the polarization structure, ensuring sufficient overall grip strength while maintaining local stress levels below the damage threshold of the adhesive layer and display panel.
Data Source
AI summary
A robot arm is provided that includes: a first gripper having a first contact surface; a second gripper having a second contact surface corresponding to the first contact surface and an opening in the second contact surface; and a stopper including a pin protruding toward the first gripper. The stopper is configured to pass through the opening in the second gripper. As provided are a dummy removal system including the robot arm and a method of driving the dummy removal system to remove a polarization structure of a display panel.