Laser Cell Mask Separation for Precise OLED Mask Repair
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Solution Overview
Problem
The existing manufacturing processes for OLEDs face challenges in efficiently removing defective cell masks during the production of light emitting elements, which affects the quality and consistency of the display panels.
Innovation Solution
A mask repairing apparatus and method using a laser to separate defective cell masks from an opening sheet by emitting a laser beam at the welding portions, allowing for precise removal and replacement with normal cell masks, facilitated by a fixing part and suction part.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of repair
If a laser beam is used to separate the cell mask from the opening sheet, then the ease of repair is improved, but the device complexity increases
Solution Approach 1:
The patent replaces mechanical removal methods with a laser-based system. The laser beam is directed to the welding portion between the opening sheet and cell mask to selectively remove the welding, enabling easy separation of defective cell masks without mechanical contact or complex manual procedures.
2Manufacturing precision
If the laser beam targets the welding portion for removal, then the manufacturing precision is improved, but the use of energy increases
Solution Approach 1:
The laser beam is precisely targeted at the welding portion between the opening sheet and cell mask, applying energy only where needed for separation. This localized energy application achieves precise separation without unnecessary energy consumption on surrounding areas.
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
Enables easy and precise removal of defective cell masks, ensuring consistent manufacturing of light emitting elements and improving the quality of OLED display panels.
Implementation Method 1
a laser which emits a laser beam toward a welding portion between an opening sheet disposed on a mask frame and a cell mask disposed on the opening sheet
Implementation Method 2
removing the welding portion by emitting the laser beam to the welding portion
Data Source
AI summary
A mask repairing apparatus includes a laser which emits a laser beam toward a welding portion between an opening sheet disposed on a mask frame and a cell mask disposed on the opening sheet, a fixing part disposed below the opening sheet to fix the opening sheet, and a suction part adjacent to the laser. The cell mask is separated from the opening sheet by the laser beam.