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US 12,611,726 B2Granted
Mask and method for manufacturing the same
AssigneeSamsung Display Co., Ltd.
InventorsJeongkuk Kim, Hwi Kim, Areum Lee, Kyu Hwan Hwang
Life of this patent
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Abstract
A mask includes a mask sheet including an upper surface and a lower surface facing the upper surface, the mask sheet including an opening passing through the upper surface and the lower surface; and a mask frame that supports the mask sheet, the mask sheet includes a protrusion adjacent to the opening and protruding from the lower surface, and a recess adjacent to the protrusion and recessed from the lower surface toward the upper surface of the mask sheet.
Claims7
A method for manufacturing a mask, the method comprising:
- preparing a preliminary mask sheet including an upper surface and a lower surface opposite each other;
- forming an opening by irradiating the upper surface of the preliminary mask sheet with first laser light such that the opening penetrates from the upper surface to the lower surface of the preliminary mask sheet;
- irradiating repeatedly, with second laser light, the lower surface of the preliminary mask sheet adjacent to the opening;
- and
- forming a mask sheet including a protrusion adjacent to the opening and protruding from the lower surface, and a recess adjacent to the protrusion and recessed from the lower surface, by repeating irradiation with the second laser light.
2 more elements
Dependencies are inferred from the claim text.