PRODUCTION METHOD OF VAPOR DEPOSITION MASK, PRODUCTION METHOD OF VAPOR DEPOSITION MASK DEVICE, SELECTION METHOD OF VAPOR DEPOSITION MASK, AND QUALITY DETERMINATION METHOD OF VAPOR DEPOSITION MASK

摘要

PROBLEM TO BE SOLVED: To provide a vapor deposition mask capable of improving location accuracy of open holes at a spreading time.SOLUTION: In a vapor deposition mask 20, when expressing a dimension from a point P1 to a point Q1 as X1, a dimension from a point P2 to a point Q2 as X2, and a specified value as α, following formula is established, and following formula is satisfied.SELECTED DRAWING: Figure 9