Fine Mask Support Frame with Adjustable Bezel for OLED Precision
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Solution Overview
Problem
The precision of organic light-emitting diode (OLED) fabrication is compromised due to the changing sizes and positions of valid opening areas on fine masks, leading to deformation and reduced accuracy over time as the mask strips relax after soldering.
Innovation Solution
A fine mask support frame with adjustable bezels and adjustment pieces, including screws and locking nuts, allows for precise adjustment of the mask area deformation by altering the shape of the adjustment openings to maintain consistent pulling force on the mask strips, ensuring positional precision.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If mask strips are soldered to the support frame, then the mask is fixed and can be used for OLED fabrication, but the mask strips relax over time causing deformation of opening areas and loss of positional precision
Solution Approach 1:
The patent introduces adjustment pieces with screws that enable dynamic adjustment of the mask strips. The adjustment openings allow the mask strips to be repositioned and re-tensioned after relaxation occurs, transforming the static mask into a dynamically adjustable one. This resolves the contradiction by allowing the mask to maintain precision throughout its operational lifespan through periodic adjustments.
Solution Approach 2:
The adjustment mechanism changes the physical parameters of the mask strip positioning by allowing movement along the adjustment openings. The screw mechanism enables precise control of the mask strip position and tension, altering the mechanical state of the mask to compensate for relaxation and maintain opening area precision.
2Manufacturing precision
If adjustment pieces are added to the support frame, then deformation of the mask area can be adjusted to maintain precision, but the device complexity increases
Solution Approach 1:
The adjustment system is segmented into discrete adjustment pieces positioned at specific locations on the support frame. Each adjustment piece is an independent module with a screw and adjustment opening, allowing localized adjustment of mask strip tension without requiring complex integrated mechanisms throughout the entire frame.
Solution Approach 2:
The adjustment mechanism is designed to be manually operable without requiring specialized tools or complex automated systems. The screw and locking nut configuration allows operators to easily adjust and lock the mask strip position, making the system self-sufficient for maintaining precision without adding significant operational complexity.
Data Source
AI summary
This disclosure relates to the field of display fabrication technologies, and discloses a fine mask support frame, a fine mask, and a method for fabricating the same. The fine mask support frame includes: a plurality of bezels surrounding a mask area, wherein adjustment openings are arranged on at least one pair of bezels arranged opposite to each other, and at least one adjustment piece is arranged on each of the adjustment openings, wherein the adjustment piece is configured to adjust a shape of a corresponding adjustment opening to thereby adjust deformation of the mask area.