Deposition mask, method of manufacturing the same, and electronic device manufactured by using the same

A method of manufacturing a deposition mask, the method comprising:

• forming a membrane on a mask substrate;
• forming recesses, which are recessed from a surface of the membrane adjacent to the mask substrate, and pixel openings penetrating the recesses by patterning the membrane;
• and
• forming a cell opening exposing the recesses by patterning the mask substrate,
• wherein each of the recesses is formed to have a width greater than a width of a corresponding one the pixel openings.

An electronic device comprising a display panel,

• wherein the display panel comprises a backplane substrate and a plurality of light emitting layers formed on the backplane substrate by using a deposition mask,
• the deposition mask comprises a mask substrate provided with a cell opening and a membrane disposed on the mask substrate,
• the membrane comprises recesses each having a flat portion and exposed through the cell opening,
• pixel openings are defined through the flat portion of each of the recesses,
• each of the recesses has a width greater than a width of a corresponding one of the pixel openings, and
• the light emitting layers are formed by a deposition process which provides a deposition material through the cell opening, the recesses, and the pixel openings.