Method of making an organic light emitting device

• US 7,858,976 B2
• Filed: 06/04/2008
• Issued: 12/28/2010
• Est. Priority Date: 11/04/2003
• Status: Active Grant

• Current Assignee: 3M Innovative Properties Company (3M Company)
• Original Assignee: 3M Innovative Properties Company (3M Company)
• Inventors: Gates, Brian J., Ottman, Jon E., McCormick, Fred B., Padiyath, Raghunath, McClure, Donald J., Engler, David A.
• Primary Examiner(s): HOANG, QUOC DINH
• Application Number:
  US12/132,651
• Publication Number:
  US 20080230777A1
• Time in Patent Office: 937 Days
• Field of Search: 257/40, 257/642, 257/759, 257/E51.022
• US Class Current: 257/40
• CPC Class Codes: H10K 2102/311 Flexible OLED
• CPC Class Codes: H10K 50/805 Electrodes
• CPC Class Codes: H10K 71/00 Manufacture or treatment specially adapted for the organic devices covered by this subclass
• CPC Class Codes: H10K 71/13 using printing techniques, e.g. ink-jet printing or screen printing
• CPC Class Codes: H10K 71/60 Forming conductive regions or layers, e.g. electrodes
• CPC Class Codes: H10K 77/111 Flexible substrates

Abstract

The invention relates to a method of making an organic electronic device and articles.

Claims

1. An organic light-emitting device comprising:

a transparent flexible substrate;

a first electrode layer disposed on the substrate;

an organic light-emitting layer disposed over at least a portion of the first electrode;

a second electrode layer disposed over at least a portion of the light emitting layer such that the second electrode layer is electrically isolated from the first electrode layer;

wherein the first electrode layer, second electrode layer, and organic light-emitting layer are continuous for a length of at least 1 inch.

2. The organic light-emitting device of claim 1 wherein the first electrode layer, second electrode layer, and organic light-emitting layer are continuous for a length of at least about 10 inches.

3. The organic light-emitting device of claim 1 wherein the transparent flexible substrate is provided in a roll having a width and length.

4. The organic light-emitting device of claim 3 and the first electrode layer, second electrode layer, and organic light-emitting layer are continuous for the length of the roll.

5. The organic light-emitting device of claim 3 wherein the first electrode layer is applied in a pattern comprising at least two stripes substantially parallel to the length of the roll.

6. The organic light-emitting device of claim 1 wherein the substrate comprises a pair of substantially parallel peripheral edges and the first or second electrode layer extends to the peripheral edges of the substrate.

7. The organic light-emitting device of claim 1 wherein the second electrode layer is electrically isolated from the first electrode layer by means of an insulating layer disposed between the first and second electrode layers.

8. The organic light-emitting device of claim 1 further comprising at least one organic charge transport layer between the light-emitting layer and at least one of the electrode layers.

9. The organic light-emitting device of claim 1 wherein the light-emitting layer is selected from the group comprising small molecule emitter, a small molecule doped polymer, a light-emitting polymer, a doped light-emitting polymer, a blended light-emitting polymer, and combinations thereof.

10. The organic light-emitting device of claim 1 wherein the substrate comprises an anti-static coating.

11. The organic light-emitting device of claim 1 wherein the substrate comprises a barrier coating.

12. The organic light-emitting device of claim 1 wherein at least one electrode layer is transparent.

13. The organic light-emitting device of claim 1 wherein the first electrode layer and the second electrode layer are transparent.

14. The organic light-emitting device of claim 13 wherein the device is encapsulated with a polymeric material.

15. The organic light-emitting device of claim 1 wherein the device is encapsulated.