Electronic device and process for forming same
View Patent ↗An electronic device includes a substrate, a structure having openings, and a first electrode overlying the structure and lying within the openings. From a cross-sectional view, the structure, at the openings, has a negative slope. From a plan view, each opening has a perimeter that may or may not substantially correspond to a perimeter of an organic electronic component. The portions of the first electrode overlying the structure and lying within the openings are connected to each other. In a process for forming the electronic device, an organic active layer may be deposited within the opening, wherein the organic active layer has a liquid composition.
1. An electronic device comprising:
a substrate;
a structure having openings, wherein from a cross-sectional view, the structure, at the openings, has a negative slope, wherein from a plan view, each opening has a perimeter that substantially corresponds to a perimeter of an organic electronic component; and
a first electrode overlying the structure and lying within the openings, wherein portions of the first electrode overlying the structure and lying within the openings are connected to each other.
2. The electronic device of claim 1 , wherein the organic electronic component comprises an organic active layer.
3. The electronic device of claim 2 , wherein a surface of the structure is hydrophobic.
4. The electronic device of claim 1 , further comprising a second electrode lying between the substrate and the structure.
5. The electronic device of claim 4 , wherein the second electrode has a surface that is hydrophilic.
6. The electronic device of claim 1 , wherein the substrate comprises a driver circuit coupled to the organic electronic component.
7. An electronic device comprising:
a substrate;
a first structure overlying the substrate, wherein:
from a cross-sectional view, the first structure has a negative slope; and
from a plan view, the first structure has a first pattern; and
a second structure overlying the substrate, wherein:
from a cross-sectional view, the second structure has a negative slope;
from a plan view, the second structure has a second pattern different from the first pattern; and
the first structure has a portion that contacts the second structure.
8. The electronic device of claim 7 , wherein the first structure comprises openings, wherein from a plan view, each opening has a perimeter that substantially corresponds to a perimeter of an organic electronic component.
9. The electronic device of claim 8 , further comprising an electrode overlying at least portions of the first structure and the second structure.
10. The electronic device of claim 9 , wherein the electrode lies within the openings and is continuous between the openings.
11. The electronic device of claim 8 , wherein the organic electronic component comprises an organic active layer.
12. The electronic device of claim 7 , wherein the second structure has a thickness at least 1.5 times greater than a thickness of the first structure.
13. The electronic device of claim 7 , wherein the first structure has a thickness no more than about 3 micrometers.
14. The electronic device of claim 7 , wherein the second structure has a thickness at least about 3 micrometers.
15. The electronic device of claim 7 , further comprising an electrode between the substrate and the first structure.
16. The electronic device of claim 15 , wherein the electrode has a surface that is hydrophilic.
17. The electronic device of claim 7 , wherein the electronic device comprises a passive matrix display.
18. The electronic device of claim 7 , wherein the first structure and the second structure have surfaces that are hydrophobic.
19. A process for forming an electronic device comprising the steps of:
forming a structure having a negative slope and openings, wherein from a plan view, each opening has a perimeter that substantially corresponds to a perimeter of an organic electronic component;
depositing an organic active layer within the opening, wherein the organic active layer has a liquid composition; and
forming a first electrode overlying the structure and the organic active layer and lying within the openings, wherein portions of the first electrode overlying the structure and lying within the openings are connected to each other.
20. The process of claim 19 , further comprising forming a second electrode before forming the structure, wherein after forming the structure, portions of the second electrode are exposed along the bottoms of the openings.
21. The process of claim 20 , wherein the liquid composition contacts the second electrode at a wetting angle of less than 90 degrees.
22. The process of claim 20 , wherein the liquid composition contacts the structure at a wetting angle of at least 45 degrees.