Organic light-emitting display device

• US 9,054,336 B2
• Filed: 09/06/2012
• Issued: 06/09/2015
• Est. Priority Date: 03/02/2012
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Jin-Woo
• Primary Examiner(s): Guharay, Karabi
• Assistant Examiner(s): Snyder, Zachary J
• Application Number:
  US13/605,974
• Publication Number:
  US 20130229107A1
• Time in Patent Office: 1,006 Days
• Field of Search: 445/2, 445/58, 313/504
• US Class Current: 1/1
• CPC Class Codes: H10K 2102/361 Temperature
• CPC Class Codes: H10K 50/844 Encapsulations
• CPC Class Codes: H10K 59/873 Encapsulations

Abstract

An organic light-emitting display device including: a substrate; an organic emission unit that is formed on the substrate and includes a laminate of a first electrode, an organic emission layer, and a second electrode; at least one organic layer that is formed on the substrate; and at least one inorganic layer that is formed on the substrate, contacts the organic layer in a planar direction, and contacts an environmental element to surround at least one border of the environmental element.

Claims

1. An organic light-emitting display device comprising:

a substrate;

an organic emission unit on the substrate, the organic emission unit comprising a stacked structure of a first electrode, an organic emission layer, and a second electrode;

at least one continuous organic layer on the substrate and the organic emission unit, and contacting an environmental element; and

at least one inorganic layer on the substrate and the organic emission unit, contacting and entirely covering the organic layer in a planar direction, and contacting the environmental element to surround at least a portion of a border of the environmental element.

2. The organic light-emitting display device of claim 1, wherein the organic layer contacts the environmental element so as to surround the other portion of the border of the environmental element.

3. The organic light-emitting display device of claim 1, wherein a viscosity transition temperature of an inorganic material contained in the inorganic layer is less than a minimum value of a denaturation temperature of a material contained in the organic emission layer.

4. The organic light-emitting display device of claim 1, wherein the inorganic layer contacts the environmental element so as not to form a gap between the inorganic layer and the environmental element.

5. The organic light-emitting display device of claim 1, wherein the inorganic layer has a thickness at an area which contacts the environmental element that is different than another thickness at another area of the inorganic layer which does not contact the environmental element.

6. The organic light-emitting display device of claim 1, wherein the inorganic layer has a flat upper surface.

7. The organic light-emitting display device of claim 1, wherein the inorganic layer comprises a tin oxide.

8. The organic light-emitting display device of claim 1, wherein the organic layer has a flat upper surface.

9. The organic light-emitting display device of claim 1, wherein the organic layer is directly on the organic emission unit.

10. The organic light-emitting display device of claim 1, wherein the inorganic layer is directly on the organic emission unit.

11. The organic light-emitting display device of claim 1, further comprising a protective layer interposed between the organic layer or inorganic layer and the organic emission unit.

12. An organic light-emitting display device comprising:

a substrate;

an organic emission unit on the substrate, the organic emission unit comprising a stacked structure of a first electrode, an organic emission layer, and a second electrode;

a continuous first organic layer on the substrate and the organic emission unit, and contacting an environmental element; and

a first inorganic layer on the substrate and the organic emission unit, sealing and entirely covering the organic emission unit from external air, and having a thickness at an area which contacts the environmental element that is different than another thickness at another area of the first inorganic layer which does not contact the environmental element.

13. The organic light-emitting display device of claim 12, wherein the first inorganic layer has a flat surface and a non-flat surface which are disposed opposite to each other, and

wherein the flat surface faces away from the substrate.

14. The organic light-emitting display device of claim 12, wherein the first organic layer has a flat surface and a non-flat surface which are disposed opposite to each other.

15. The organic light-emitting display device of claim 12, wherein the first inorganic layer comprises an inorganic material, and

wherein a temperature at which fluidity is provided to the inorganic material of the first inorganic layer is in a range from a viscosity transition temperature of the inorganic material of the first inorganic layer to a minimum value of a denaturation temperature of a material contained in the organic emission layer.

16. The organic light-emitting display device of claim 12, wherein the first inorganic layer comprises a tin oxide.

17. The organic light-emitting display device of claim 12, further comprising a second inorganic layer on one surface of the substrate to contact the substrate and has a thickness at an area which contacts an environmental element that is different than another thickness at another area of the first inorganic layer which does not contact the environmental element.

18. The organic light-emitting display device of claim 17, wherein the second inorganic layer comprises an inorganic material, and

wherein a temperature at which fluidity is provided to the inorganic material of the second inorganic layer is less than a denaturation temperature of a material contained in the organic emission layer.

19. The organic light-emitting display device of claim 17, wherein the second inorganic layer comprises a tin oxide.

20. The organic light-emitting display device of claim 12, further comprising a protective layer between the first organic layer or first inorganic layer and the organic emission unit.

21. A method of forming an organic light-emitting display device, the method comprising:

forming an organic emission unit on a substrate to comprise a stacked structure of a first electrode, an organic emission layer, and a second electrode;

forming an organic layer on the substrate and the organic emission unit; and

forming an inorganic layer on the substrate and the organic emission unit to seal and entirely cover the organic emission unit from external air with the inorganic layer,

wherein the forming of the inorganic layer comprises depositing a pre-inorganic material on the organic layer, providing fluidity to the deposited pre-inorganic material to form a flat upper surface, and solidifying the pre-inorganic material to form the inorganic material, and

wherein a temperature at which fluidity is provided to the inorganic material of the inorganic layer is in a range from a viscosity transition temperature of the inorganic material of the inorganic layer to a minimum value of a denaturation temperature of a material contained in the organic emission layer.

22. A method of forming an organic light-emitting display device, the method comprising:

forming an organic emission unit on a substrate to comprise a stacked structure of a first electrode, an organic emission layer, and a second electrode;

forming an organic layer on the substrate and the organic emission unit; and

forming an inorganic layer on the substrate and the organic emission unit

wherein a viscosity transition temperature of an inorganic material contained in the inorganic layer is less than a minimum value of a denaturation temperature of a material contained in the organic emission layer,

wherein the forming of the inorganic layer comprises depositing a pre-inorganic material on the organic layer in a planar direction, providing fluidity to the deposited pre-inorganic material to from a flat upper surface, and solidifying the pre-inorganic material, and

wherein the inorganic layer entirely covers the organic layer.

23. The method of claim 22, wherein the forming of the inorganic layer further comprises contacting the inorganic layer to an environmental element to surround at least a portion of a border of the environmental element.