Shadow mask
A shadow mask includes a mask foil and a plurality of openings provided on the mask foil in accordance with a shape of at least one region where films are formed on a film forming object. The mask foil has an annular shape where first end of the mask foil and a second end of the mask foil, which is opposed to the first end of the mask foil, are connected to each other.
1. A shadow mask comprising:
a mask foil; and
a plurality of openings provided on the mask foil in accordance with a shape of at least one region
where films are formed on a film forming object,
wherein the mask foil has an annular shape where a first end of the mask foil and a second end of the
mask foil, which is opposed to the first end of the mask foil, are connected to each other,
a film forming source disposed inside the shadow mask that comprises the mask foil, the ends of which
are connected to each other in a continuous fashion.
2. The shadow mask according to claim 1 , wherein
the at least one region where the films are formed is repeatedly arrayed on the film forming object, and
the plurality of openings of the mask foil equals a number of the films provided on one of the at least one region.
3. The shadow mask according to claim 1 , wherein
the mask foil is held by at least two rotating shafts.
4. The shadow mask according to claim 1 , wherein
a length of the mask foil from the first end to the second end is shorter than a length of the film forming object.
5. The shadow mask according to claim 3 , wherein
a distance between the two rotating shafts is smaller than a length of the film forming object.
6. The shadow mask according to claim 1 , wherein
a plurality of regions where films are formed is on the film forming object, and
a number of the openings provided on the mask foil is different from a number of the plurality of regions on the film forming object.