Method of depositing a thin film

1. A method of forming a thin film on a substrate, the method comprising:

disposing the substrate to be separated from a thin film deposition apparatus by a set distance; and

discharging a deposition material via a deposition source of the thin film deposition apparatus onto the substrate during a relative motion between the thin film deposition apparatus and the substrate to the thin film;

wherein a deposition source nozzle unit of the thin film deposition apparatus is disposed at a side of the deposition source and includes a plurality of deposition source nozzles arranged in a first direction,

wherein a patterning slit sheet of the thin film deposition apparatus is disposed to be between the deposition source nozzle unit and the substrate, the patterning slit sheet including a plurality of patterning slits,

wherein each of the patterning slits includes a plurality of sub-slits,

wherein a first patterning slit of the patterning slits is spaced apart from a second patterning slit of the patterning slits,

wherein a third patterning slit of the patterning slits is spaced apart from the first and the second patterning slits of the patterning slits,

wherein sub-slits of the first patterning slit are spaced apart from each other,

wherein sub-slits of the second patterning slit are spaced apart from each other,

wherein sub-slits of the third patterning slit are spaced apart from each other,

wherein the space between the first patterning slit and the second patterning slit is greater than both the space between the sub-slits of the first patterning slit and the space between the sub-slits of the second patterning slit, and

wherein the sub-slits of the first patterning slit are parallel to the sub-slits of the second and the third patterning slits.

2. The method of claim 1 , wherein a gap between the neighboring patterning slits is greater than a gap between the neighboring sub-slits included in one patterning slit.

3. The method of claim 1 , further comprising arranging the plurality of sub-slits so that at least a part of a pattern that is formed of the deposition material discharged from one of the sub-slits included in one patterning slit of the patterning slits towards the substrate and at least a part of a pattern that is formed of the deposition material discharged from another one of the sub-slits included in the one patterning slit towards the substrate overlaps each other.

4. The method of claim 1 , further comprising

arranging the plurality of sub-slits to be parallel with each other,

wherein the plurality of sub-slits are rectangles.

5. The method of claim 1 , further comprising

arranging the plurality of sub-slits in a plurality of rows which are in parallel with each other,

wherein the plurality of sub-slits are holes.

6. The method of claim 5 , further comprising

continuously depositing the deposition material contained in the deposition source of the thin film deposition apparatus on the substrate and

moving the substrate or the thin film deposition apparatus relative to the other.

7. The method of claim 5 , wherein the thin film deposition apparatus or the substrate is movable relative to the other along a plane parallel to a surface of the substrate on which the deposition materials are deposited.

8. The method of claim 1 , wherein the patterning slit sheet of the thin film deposition apparatus is smaller than the substrate.

9. The method of claim 1 , wherein the total number of the patterning slits is greater than a total number of the deposition source nozzles.

10. The method of claim 1 , wherein the patterning slits are arranged in a second direction perpendicular to the first direction.

11. The method of claim 10 , wherein the deposition source and the deposition source nozzle unit, and the patterning slit sheet are connected to the other by a connection member.

12. The method of claim 11 , wherein the connection member guides movement of the discharged deposition material.

13. The method of claim 11 , wherein the connection member seals the space between the deposition source and the deposition source nozzle unit, and the patterning slit sheet.

14. The method of claim 10 , wherein the plurality of deposition source nozzles are tilted at a predetermined angle.

15. The method of claim 14 , wherein the plurality of deposition source nozzles includes deposition source nozzles arranged in two rows formed in the first direction, and the deposition source nozzles in the two rows are tilted to face each other.

16. The method of claim 14 , wherein the plurality of deposition source nozzles include deposition source nozzles arranged in two rows formed in the first direction, the deposition source nozzles arranged in the row located at a first side of the patterning slit sheet are arranged to face a second side of the patterning slit sheet, and the deposition source nozzles arranged in the other row located at the second side of the patterning slit sheet are arranged to face the first side of the patterning slit sheet.