Organic luminous diode, method for the production thefeof and uses thereof

• US 20050260777A1
• Filed: 08/20/2002
• Published: 11/24/2005
• Est. Priority Date: 08/21/2001
• Status: Active Grant

• Current Assignee: Pictiva Displays International Limited (f/k/a Dolya Holdco 5 Limited) (Key Patent Innovations Limited)
• Original Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Inventors: Wittmann, Georg, Brabec, Christoph Josef, Schewe, Herbert
• Granted Patent: US 7,317,210 B2
• Time in Patent Office: Days
• US Class Current: 438/20
• CPC Class Codes: F21S 9/037 the solar unit and the lighting unit being located within or on the same housing
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H10K 19/901 Assemblies of multiple devices comprising at least one organic element specially adapted for rectifying, amplifying, oscillating or switching
• CPC Class Codes: H10K 39/10 Organic photovoltaic [PV] modules; Arrays of single organic PV cells
• CPC Class Codes: H10K 50/841 Self-supporting sealing arrangements
• CPC Class Codes: H10K 59/60 OLEDs integrated with inorganic light-sensitive elements, e.g. with inorganic solar cells or inorganic photodiodes

Abstract

The invention relates to an organic light emitting diode (OLED), also referred to as a light emitting diode, which comprises at least one substrate, one anode, one perforated transport layer, one emitter layer, one cathode and one encapsulation. It is proposed that an energy carrier, which supplies the voltage that causes the OLED to emit light, be integrated into the OLED. The energy carrier can be a battery (energy storage device) or an energy converter (photovoltaic element).

Claims

1-12. -12. (canceled)

13. A light emitting device, comprising:

one or more substrates;

an organic light emitting diode supported by the one or more substrates, wherein the organic light emitting diode comprises;

a first electrode;

an emitter layer disposed on the first electrode; and

a second electrode disposed on the emitter layer; and

an energy source to apply a voltage to the organic light emitting diode, wherein the energy source is supported by the one or more substrates.

14. The device according to claim 13, further comprising:

an encapsulation that encapsulates the energy source.

15. The device according to claim 14, wherein:

the encapsulation includes a sealing layer.

16. The device according to claim 13, further comprising:

an encapsulation that encapsulates the organic light emitting diode.

17. The device according to claim 16, wherein:

the encapsulation includes a sealing layer.

18. The device according to claim 13, wherein:

the energy source is an energy converter.

19. The device according to claim 18, wherein:

the energy converter comprises a photovoltaic element.

20. The device according to claims 18, wherein:

the one or more substrates includes a semitransparent insulation layer and the semitransparent insulation layer is between the organic light emitting diode and the energy converter.

21. The device according to claims 20, wherein:

the semitransparent insulation layer comprises at least one of a planarizing layer, a thin substrate, a flexible layer and a getter layer.

22. The device according to claim 13, wherein:

the energy source is an energy storage device.

23. The device according to claim 22, wherein:

the one or more substrates include a semitransparent insulation layer and the semitransparent insulation layer is between the organic light emitting diode and the energy storage device.

24. The device according to claim 23, wherein:

the semitransparent insulation layer comprises at least one of a planarizing layer, a thin substrate, a flexible layer and a getter layer.

25. The device according to claim 13, wherein:

the energy source is at least semitransparent.

26. The device according to claim 13, wherein:

the organic light emitting diode is supported by a first substrate of the one or more substrates;

the energy source is supported by a second substrate of the one or more substrates; and

the first and second substrates encapsulate the organic light emitting diode and the energy source.

27. The device according to claim 13, wherein:

the organic light emitting diode is supported by a first side of a substrate of the one or more substrates; and

the energy source is supported by a second side of the substrate of the one or more substrates.

28. The device according to claim 13, wherein:

the organic light emitting diode contacts the energy source.

29. The device according to claim 13, wherein:

the energy source includes the first electrode of the organic light emitting diode.

30. The device according to claim 29, wherein:

the first electrode is an anode.

31. A method for producing a light emitting device, comprising a substrate and an organic light emitting diode having an anode, an emitter layer and a cathode, wherein an energy source is integrated into the light emitting device to provide a voltage to the organic light emitting diode, comprising:

providing one or more substrates;

forming an energy source on the one or more substrates;

forming an organic light emitting diode on the one or more substrates;

encapsulating the energy source.

32. The method of claim 31, wherein:

forming the energy source includes forming a solar cell.

33. The method of claim 31, wherein:

encapsulating the energy source includes encapsulating the organic light emitting diode.

34. A method for producing a light emitting device, comprising a substrate and an organic light emitting diode having an anode, an emitter layer and a cathode, wherein an energy source is integrated into the light emitting device to provide a voltage to the organic light emitting diode, comprising:

constructing an energy source on a substrate;

encapsulating the energy source;

constructing an organic light emitting diode on the encapsulated energy source to form a combined energy source and organic light emitting diode; and

encapsulating the combined energy source and organic light emitting diode.

35. The method of claim 34, wherein:

constructing an energy source on a substrate includes constructing a solar cell.

36. A method for producing a light emitting device, comprising a substrate and an organic light emitting diode having an anode, an emitter layer and a cathode, wherein an energy source is integrated into the light emitting device to provide a voltage to the organic light emitting diode, comprising:

forming a first cathode on a substrate;

forming a first photoactive layer on the first cathode;

forming an anode on the first photoactive layer;

forming a second photoactive layer on the anode;

forming a second cathode on the second photoactive layer; and

forming an encapsulation to encapsulate the first and second cathodes.

37. The method of claim 36 wherein:

the first photoactive layer forms a layer of an energy carrier; and

the second photoactive layer forms a layer of an organic light emitting diode.

38. The method of claim 36 wherein:

the first photoactive layer forms a layer of an organic light emitting diode; and

the second photoactive layer forms a layer of an energy carrier.

39. A method of operating a light emitting device that comprises a light emitting diode having a first electrode, an emitter layer and a second electrode, wherein the emitter layer is between the first and second electrodes and at least one energy source is integrated into the organic light emitting device such that the first and second electrodes, emitter layer and energy source are encapsulated, the method comprising:

supplying a voltage from the energy source to the organic light emitting diode; and

applying the supplied voltage across the first electrode and the second electrode; and

emitting light when the voltage is applied across the first and second electrodes.

40. The method of claim 39, further comprising:

detecting an environmental influence selected from the group consisting of radiation, heat, pressure and sound, wherein detecting the environmental influence initiates the step of supplying a voltage.

41. The method of claim 39, wherein:

emitting light includes emitting light through the energy source.

42. An electronic paper, comprising:

one or more substrates;

an organic light emitting diode supported by the one or more substrates, wherein the organic light emitting diode comprises;

a first electrode;

an emitter layer disposed on the first electrode; and

a second electrode disposed on the emitter layer; and

an energy source to apply a voltage to the organic light emitting diode wherein the energy source is supported by the one or more substrates.