| 摘要 |
PROBLEM TO BE SOLVED: To provide a metal mask and a manufacturing method of the same enabled to accurately form an organic electroluminescent medium of an organic electroluminescent display panel, with improved manufacturing efficiency. SOLUTION: A multi-sectioned metal mask has a plurality of metal mask areas while each of the metal mask areas has a plurality of perforated openings through which evaporated material from an evaporation source passes, and a base material part having a plurality of unit metal masks with the metal mask area respectively, and a plurality of openings demarcated by fringe part of the openings supporting each of unit metal masks at the fringe parts outside the metal mask areas.
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