Organic light emitting device and display using the same
View Patent ↗An organic light emitting device (OLED) comprising an anode, an organic emissive layer, a cathode, and an ion-complexing material layer, and a display using the OLED, are provided. The ion-complexing material layer is arranged between the anode and the cathode.
1. An organic light emitting device (OLED), comprising:
an anode;
a cathode;
an organic emissive layer disposed between the anode and the cathode; and
an ion-complexing material layer disposed between the anode and the cathode, wherein the ion-complexing material layer is distinct from the organic emissive layer.
2. The OLED of claim 1 , wherein the ion-complexing material layer is disposed between the anode and the organic emissive layer.
3. The OLED of claim 2 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
4. The OLED of claim 1 , wherein the ion-complexing material layer is comprised of a complex-forming ionophore, a crown ether, or a zeolite.
5. The OLED of claim 4 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
6. The OLED of claim 5 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
7. The OLED of claim 1 , wherein the ion-complexing material layer has a thickness ranging from about 5 nm to about 15 nm.
8. The OLED of claim 7 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
9. The OLED of claim 8 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
10. The OLED of claim 3 , wherein the hole transport layer is made of poly(ethylene dioxythiophene)-polystyrene sulfone acid at a thickness ranging from about 30 nm to about 150 nm.
11. The OLED of claim 1 , wherein the organic emissive layer contains at least one of poly(phenylenvinylenes) or polyfluorenes.
12. The OLED of claim 11 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
13. The OLED of claim 12 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
14. The OLED of claim 1 , wherein the organic emissive layer has a thickness ranging from about 50 nm to about 120 nm.
15. The OLED of claim 14 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
16. The OLED of claim 15 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
17. The OLED of claim 1 , wherein the anode is made of indium tin oxide, and the cathode includes at least one layer made of at least one selected from the group consisting of aluminum, silver, ytterbium, or calcium.
18. The OLED of claim 1 , wherein at least a portion of the cathode includes at least one of an alkali fluoride layer or an alkali earth fluoride layer.
19. The OLED of claim 18 , wherein the alkali fluoride layer is a lithium fluoride layer.
20. The OLED of claim 1 , further comprising two substrates, wherein the OLED is sealed between the two substrates.
21. A display using an organic light emitting device, comprising:
an anode;
a cathode;
an organic emissive layer disposed between the anode and the cathode; and
an ion-complexing material layer disposed between the anode and the cathode, wherein the ion-complexing material layer is distinct from the organic emissive layer.
22. The display of claim 21 , wherein the ion-complexing material layer is disposed between the anode and the organic emissive layer.
23. The display of claim 22 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
24. The display of claim 21 , wherein the ion-complexing material layer is comprised of a complex-forming ionophore, a crown ether, or a zeolite.
25. The display of claim 24 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
26. The display of claim 25 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
27. The display of claim 21 , wherein the ion-complexing material layer has a thickness ranging from about 5 nm to about 15 nm.
28. The display of claim 27 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
29. The display of claim 28 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
30. The display of claim 23 , wherein the hole transport layer is made of poly(ethylene dioxythiophene)-polystyrene sulfone acid at a thickness ranging from about 30 nm to about 150 nm.
31. The display of claim 21 , wherein the organic emissive layer contains at least one of poly(phenylenvinylenes) or polyfluorenes.
32. The display of claim 31 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
33. The display of claim 32 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
34. The display of claim 21 , wherein the organic emissive layer has a thickness ranging from about 50 nm to about 120 nm.
35. The display of claim 34 , wherein the ion-complexing layer is between the anode and the organic emissive layer.
36. The display of claim 35 , further comprising a hole transport layer, wherein the hole transport layer is formed directly on the anode or directly on the ion-complexing layer.
37. The display of claim 21 , wherein the anode is made of indium tin oxide, and the cathode includes at least one layer made of at least one selected from the group consisting of aluminum, silver, ytterbium, or calcium.
38. The display of claim 21 , wherein at least a portion of the cathode includes at least one of an alkali fluoride layer or an alkali earth fluoride layer.
39. The display of claim 38 , wherein the alkali fluoride layer is a lithium fluoride layer.
40. The display of claim 21 , further comprising two substrates, wherein the OLED is sealed between the two substrates.