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US 8,757,088 B2Granted
Mask frame assembly
AssigneeSamsung Display Co., Ltd.
InventorsChoong-Ho Lee, Jung-Min Lee
Life of this patent
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Abstract
A mask frame assembly includes a frame, a mask having a deposition pattern and being installable on the frame in a state of being pulled by a first tension force in a first direction, and a tension force applying portion in the mask and configured to apply a second tension force in a second direction that is perpendicular or substantially perpendicular to the first direction.
Claims11
A mask frame assembly for depositing a thin film on a substrate, the mask frame assembly comprising:
- a frame;
- a fine metal mask having a deposition pattern
- and being installable on the frame in a state of being pulled by a first tension force in a first direction;
- and
- a negative Poisson ratio member in the mask and configured to expand toward an outside of the mask in a second direction perpendicular to the first direction and apply a second tension force to the mask in the second direction when the first tension force is applied in the first direction.
2 more elements
A mask frame assembly for depositing a thin film on a substrate, the mask frame assembly comprising:
- a frame;
- a fine metal mask having a deposition pattern
- including a plurality of openings and being installable on the frame in a state of being pulled by a first tension force in a first direction;
- and
- a spring attached to the mask at first and second locations at opposite sides of the plurality of openings of the deposition pattern, and configured to apply a second tension force to the mask in a second direction that is perpendicular to the first direction, wherein the second tension force is an elastic restoration force.
2 more elements
Dependencies are inferred from the claim text.