Three dimensional OLED lamps

• US 8,773,013 B2
• Filed: 05/12/2011
• Issued: 07/08/2014
• Est. Priority Date: 05/12/2011
• Status: Active Grant

• Current Assignee: Universal Display Corporation
• Original Assignee: Universal Display Corporation
• Inventors: Rajan, Kamala, Mandlik, Prashant, Pang, Huiqing, Levermore, Peter, Burrows, Paul E., Ma, Ruiqing
• Primary Examiner(s): Patel, Nimeshkumar
• Assistant Examiner(s): ZIMMERMAN, GLENN D
• Application Number:
  US13/106,510
• Publication Number:
  US 20120286649A1
• Time in Patent Office: 1,153 Days
• Field of Search: 313/511, 313/504, 313/512, 428/690, 362/800
• US Class Current: 313/504
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 77/10 Substrates, e.g. flexible substrates
• CPC Class Codes: H10K 77/111 Flexible substrates
• CPC Class Codes: Y02E 10/549 Organic PV cells

Abstract

Novel three dimensional OLEDs are provided. The OLEDs have two configurations, and are self supporting in the three dimensional configuration without the need for any external supports.

Claims

1. A first device comprising:

a flexible substrate having at least one flexible organic light emitting device (OLED) deposited thereon,

wherein the first device has a three dimensional shape not constrained by any fixture and the flexible substrate and OLED have a sufficient flexural rigidity to maintain the three dimensional shape;

wherein the first device comprises at least one structurally weakened region; and

wherein the first device has a flexural rigidity of about 10<sup>−

1</sup> Nm to about 10<sup>−

6</sup> Nm.

2. The first device of claim 1, wherein the at least one structurally weakened region comprises a cut region.

3. The first device of claim 1, wherein the at least one structurally weakened region comprises a scored region.

4. The first device of claim 1, wherein the at least one structurally weakened region comprises a perforated region.

5. The first device of claim 1, wherein the at least one structurally weakened region comprises a folded region.

6. The first device of claim 1, wherein the first device is folded along the at least one structurally weakened region.

7. The first device of claim 1, wherein no complete OLED is deposited on the at least one structurally weakened region.

8. The first device of claim 1, wherein the three dimensional shape is a conical spiral.

9. The first device of claim 1, wherein the first device is attached to at least one contact region.

10. The first device of claim 1, wherein the first device is a lamp.

11. The first device of claim 1, wherein the first device comprises metal foil, plastic, fabric, glass, paper or combinations thereof.

12. The first device of claim 11, wherein the metal foil comprises an aluminum foil, stainless steel foil, copper foil Or combinations thereof.

13. The first device of claim 12, wherein the stainless steel foil has a thickness of about 20 microns to about 150 microns.

14. The first device of claim 11, wherein the plastic comprises polyethylene terephthalate, polyethylene naphthalate, or combinations thereof.

15. The first device of claim 14, wherein the plastic has a thickness of about 40 microns to about 400 microns.

16. The first device of claim 11, wherein the metal foil comprises aluminum foil.

17. The first device of claim 16, wherein the aluminum foil has a thickness of about 30 microns to about 300 microns.

18. The first device of claim 11, wherein the glass comprises a flexible glass.

19. The first device of claim 18, wherein the flexible glass comprises a borosilicate glass and has a thickness of about 50 microns to about 500 microns.

20. The first device of claim 1, wherein the OLED comprises a single pixel.

21. The first device of claim 1, wherein the OLED comprises a plurality of pixels.

22. The first device of claim 21, wherein the plurality of pixels are connected in series.

23. The first device of claim 21, wherein the plurality of pixels are connected in parallel.

24. The first device of claim 1, wherein the OLED is covered with a thin film encapsulation layer.

25. The first device of claim 24, wherein the at least one structurally weakened region is substantially free of the thin film encapsulation layer.

26. The first device of claim 24, wherein a hard coat layer is present on top of the thin film encapsulation layer.

27. The first device of claim 24, wherein the thin film encapsulation layer has a thickness of less than 10 microns.

28. The first device of claim 1, wherein the first device has a bending length of about 1.0 cm to about 25.0 cm.

29. The first device of claim 28, wherein the first device has a bending length of about 3.0 cm to about 15.0 cm.

30. The first device of claim 1, wherein at least one structurally weakened region is formed prior to OLED deposition.

31. The first device of claim 1, wherein the flexible substrate is self-supporting.

32. The first device of claim 1, wherein one or more of the edges of the first device comprise a protective coating.

33. The first device of claim 1, wherein the first device contains no transistors.

34. A first device comprising:

a flexible substrate having at least one flexible organic light emitting device (OLED) deposited thereon, the first device having at least two configurations;

a first configuration wherein the first device is flat; and

a second configuration wherein the first device has a three dimensional shape not constrained by any fixture and the flexible substrate and OLED have a sufficient flexural rigidity to maintain the three dimensional shape;

wherein the first device comprises at least one structurally weakened region; and

wherein the first device has a flexural rigidity of about 10<sup>−

1</sup> Nm to about 10<sup>−

6</sup> Nm.