Light-emitting panel, manufacturing method of light-emitting panel, and film forming system
View Patent ↗A light-emitting panel includes: a substrate and a light-emitting functional multilayer formed on the substrate, wherein the light-emitting functional multilayer including a first functional layer and a second functional layer, a thickness of part of the first functional layer positioned in a first light-emitting region is smaller than a thickness of part of the first functional layer positioned in a second light-emitting region, a thickness of part of the second functional layer positioned in the first light-emitting region is greater than a thickness of part of the second functional layer positioned in the second light-emitting region, and when the light-emitting functional multilayer is viewed in a layering direction, the first light-emitting region and the second light-emitting region are adjacent or distant from each other in a direction perpendicular to the layering direction, and each include a plurality of pixels that are each composed of a plurality of adjacent sub-pixels.
1. A manufacturing method of a light-emitting panel including a substrate and a light-emitting functional multilayer that is formed on the substrate and includes a plurality of functional layers, the manufacturing method comprising:
forming the first functional layer by a first film forming device; and
forming the second functional layer by a second film forming device, wherein
a thickness of part of the first functional layer positioned in a first light-emitting region is smaller than a thickness of part of the first functional layer positioned in a second light-emitting region,
a thickness of part of the second functional layer positioned in the first light-emitting region is greater than a thickness of part of the second functional layer positioned in the second light-emitting region, and
when the light-emitting functional multilayer is viewed in a layering direction thereof, the first light-emitting region and the second light-emitting region are adjacent or distant from each other in a direction perpendicular to the layering direction, and each include a plurality of pixels that are each composed of a plurality of adjacent sub-pixels.
2. The manufacturing method of claim 1 , wherein
the respective parts of the first functional layer positioned in the first light-emitting region and the second light-emitting region are formed in the forming of the first functional layer, and
the respective parts of the second functional layer positioned in the first light-emitting region and the second light-emitting region are formed in the forming the second functional layer.
3. The manufacturing method of claim 1 , wherein
a total optical thickness of the part of the first functional layer and the part of the second functional layer positioned in the first light-emitting region is equal to a total optical thickness of the part of the first functional layer and the part of the second functional layer positioned in the second light-emitting region.
4. The manufacturing method of claim 1 , wherein
the first film forming device is a first magnetron sputtering device, and
the second film forming device is a second magnetron sputtering device.
5. The manufacturing method of claim 4 , wherein
the first magnetron sputtering device comprises:
a first target member;
a first target member holder that holds the first target member on a first surface thereof; and
a plurality of first magnetrons on a second surface of the first target member holder that is opposite the first surface of the first target member holder,
the second magnetron sputtering device comprises:
a second target member;
a second target member holder that holds the second target member on a first surface thereof; and
a plurality of second magnetrons on a second surface of the second target member holder that is opposite the first surface of the second target member holder,
the substrate is placed facing the first target member in the first magnetron sputtering device, and then the substrate is placed facing the second target member in the second magnetron sputtering device, and
respective positions of the first magnetrons facing the substrate differ from respective positions of the second magnetrons facing the substrate.
6. The manufacturing method of claim 5 , wherein
the first magnetrons are equally spaced with a first spacing,
the second magnetrons are equally spaced with a second spacing, and
the first spacing and the second spacing are equal to each other.
7. The manufacturing method of claim 1 , wherein
the first functional layer and the second functional layer are adjacent each other in the layering direction.
8. The manufacturing method of claim 1 , wherein
the light-emitting functional multilayer further includes a third functional layer,
the manufacturing method further comprises
forming the third functional layer by a third magnetron sputtering device, and
a thickness of part of the third functional layer positioned in the first light-emitting region is greater than a thickness of part of the third functional layer positioned in the second light-emitting region.
9. The manufacturing method of claim 8 , wherein
the third magnetron sputtering device comprises:
a third target member;
a third target member holder that holds the third target member on a first surface thereof; and
a plurality of third magnetrons on a second surface of the first target member holder that is opposite the first surface of the third target member holder, and
respective positions of the third magnetrons facing the substrate differ from both the respective positions of the first magnetrons facing the substrate and the respective positions of the second magnetrons facing the substrate.
10. The manufacturing method of claim 1 , wherein
the first film forming device is a first evaporation device, and
the second film forming device is a second evaporation device.
11. The manufacturing method of claim 10 , wherein
the first evaporation device comprises a plurality of first evaporation sources,
the second evaporation device comprises a plurality of second evaporation sources,
the substrate is facing the first evaporation sources in the first evaporation device, and then the substrate is placed facing the second evaporation sources in the second evaporation, and
respective positions of the first evaporation sources facing the substrate differ from respective positions of the second evaporation sources facing the substrate.
12. The manufacturing method of claim 11 , wherein
the first evaporation sources are equally spaced with a first spacing,
the second evaporation sources are equally spaced with a second spacing, and
the first spacing and the second spacing are equal to each other.
13. The manufacturing method of claim 10 , wherein
the first functional layer and the second functional layer are adjacent each other in the layering direction.
14. The manufacturing method of claim 10 , wherein
the light-emitting functional multilayer further includes a third functional layer,
the manufacturing method further comprises
forming the third functional layer by a third evaporation device, and
a thickness of part of the third functional layer positioned in the first light-emitting region is greater than a thickness of part of the third functional layer positioned in the second light-emitting region.
15. The manufacturing method of claim 14 , wherein
the third evaporation device comprises a plurality of third evaporation sources,
respective positions of the third evaporation sources facing the substrate differ from both the respective positions of the first evaporation sources facing the substrate and the respective positions of the second evaporation sources facing the substrate.