Organic light emitting display device having polarizable particles in sealant and method of manufacturing the same

• US 8,586,970 B2
• Filed: 11/17/2010
• Issued: 11/19/2013
• Est. Priority Date: 12/04/2009
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Oh, Min-Ho, Lee, Byoung-Duk, Lee, So-Young, Lee, Sun-Young, Lee, Jong-Hyuk, Cho, Yoon-Hyeong
• Primary Examiner(s): Jung, Michael
• Application Number:
  US12/948,402
• Publication Number:
  US 20110133170A1
• Time in Patent Office: 1,098 Days
• Field of Search: None
• US Class Current: 257/40
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants

Abstract

There is provided an organic light emitting display device including a first substrate; an organic light emitting unit formed on the first substrate; a second substrate disposed on the organic light emitting unit; and an adhesive unit for adhering the first substrate and the second substrate to each other, wherein the adhesive unit includes a sealant, and particles that are arranged in the sealant so as to block penetration of external impurities. There is further provided a method of manufacturing the organic light emitting display device.

Claims

1. An organic light emitting display device, comprising:

a first substrate;

an organic light emitting unit formed on the first substrate;

a second substrate disposed on the organic light emitting unit; and

an adhesive unit disposed between the first substrate and the second substrate adhering the first substrate and the second substrate to each other, wherein

the adhesive unit comprises a sealant, and particles that are arranged in at least one column in the sealant; and

the at least one columns is arranged in a direction perpendicular to both of the first substrate and the second substrate so as to form at least one blocking unit,

the particles comprise a polarizable inorganic material selected from the group consisting of silica gel, zeolite, and a mesoporous material in the sealant that responds to an electric field or a magnetic field.

2. The organic light emitting display device of claim 1, wherein the particles are linearly arranged end to end between the first substrate and the second substrate.

3. The organic light emitting display device of claim 1, wherein the sealant comprises an insulating material.

4. The organic light emitting display device of claim 3, wherein the insulating material comprises one selected from the group consisting of silicon, epoxy, and acryl.

5. An organic light emitting display device, comprising:

a first substrate;

an organic light emitting unit formed on the first substrate;

a second substrate disposed on the organic light emitting unit; and

an adhesive unit disposed between the first substrate and the second substrate for adhering the first substrate and the second substrate to each other, wherein

the adhesive unit comprises a sealant, and particles that are arranged in a chained shape in the sealant; and

the particles are arranged in a direction perpendicular to both of the first substrate and the second substrate so as to form at least one blocking unit,

the particles comprise a polarizable inorganic material selected from the group consisting of silica gel, zeolite, and a mesoporous material in the sealant that responds to an electric field or a magnetic field.

6. The organic light emitting display device of claim 5, wherein the sealant comprises an insulating material.

7. The organic light emitting display device of claim 6, wherein the insulating material comprises one selected from the group consisting of silicon, epoxy, and acryl.

8. An organic light emitting display device, comprising:

a first substrate;

an organic light emitting unit formed on the first substrate;

a second substrate disposed on the organic light emitting unit; and

an adhesive unit disposed between the first substrate and the second substrate for adhering the first substrate and the second substrate to each other, wherein

the adhesive unit comprises a sealant, and particles that are arranged in at least one column in the sealant; and

the at least one column is arranged in a direction perpendicular to both of the first substrate and the second substrate so as to form at least one blocking unit,

the particles comprise a polarizable organic material selected from the group consisting of poly(p-phenylene), poly naphthalene quinine radicals, poly acene quinone radicals, and poly phenylenediamine in the sealant that responds to an electric field or a magnetic field.

9. The organic light emitting display device of claim 8, wherein the sealant comprises an insulating material.

10. The organic light emitting display device of claim 9, wherein the insulating material comprises one selected from the group consisting of silicon, epoxy, and acryl.

11. An organic light emitting display device, comprising:

a first substrate;

an organic light emitting unit formed on the first substrate;

a second substrate disposed on the organic light emitting unit; and

an adhesive unit disposed between the first substrate and the second substrate for adhering the first substrate and the second substrate to each other, wherein

the adhesive unit comprises a sealant, and particles that are arranged in a chained shape in the sealant; and

the at least one chain is arranged in a direction perpendicular to both of the first substrate and the second substrate so as to form at least one blocking unit,

the particles comprise a polarizable organic material selected from the group consisting of poly(p-phenylene), poly naphthalene quinine radicals, poly acene quinone radicals, and poly phenylenediamine in the sealant that responds to an electric field or a magnetic field.

12. The organic light emitting display device of claim 11, wherein the sealant comprises an insulating material.

13. The organic light emitting display device of claim 12, wherein the insulating material comprises one selected from the group consisting of silicon, epoxy, and acryl.

14. A method for manufacturing an organic light emitting display device, the method comprising:

forming an organic light emitting unit on a first substrate;

coating an adhesive unit on a second substrate;

adhering the first substrate and the second substrate to each other with the adhesive unit so that the adhesive unit surrounds the organic light emitting unit;

the adhesive unit comprising a sealant, and particles that are dispersed in the sealant and arranged in at least one columns in the sealant;

the at least one column being arranged in a direction perpendicular to both of the first substrate and the second substrate so as to form at least one blocking unit;

the particles comprising a polarizable inorganic material selected from the group consisting of silica gel, zeolite, and a mesoporous material in the sealant that responds to an electric field or a magnetic field;

making an application of an electric field or a magnetic field to the adhesive unit; and

hardening the adhesive unit so as to adhere the first substrate and the second substrate to each other.

15. The method of claim 14, the method further comprising:

making an application of an electric field or a magnetic field to the adhesive unit; and

hardening the adhesive unit so as to adhere the first substrate and the second substrate to each other.

16. The method of claim 15, wherein the hardening of the adhesive unit is performed by heating the adhesive unit.

17. The method of claim 15, wherein the hardening of the adhesive unit is performed by applying ultraviolet rays to the adhesive unit.

18. The method of claim 15, wherein the hardening of the adhesive unit occurs in conjunction with the application of the electric field or the magnetic field to the adhesive unit.

19. The method of claim 14, wherein the application of the electric field or the magnetic field comprises:

applying the electric field lines or the magnetic field lines in a direction generally perpendicular to the first substrate and the second substrate; and

arranging the particles in the direction of the electric field lines or the magnetic field lines.

20. The method of claim 19, wherein the particles form a plurality of chains that are each arranged in to direction generally perpendicular to the first substrate and the second substrate.

21. The method of claim 14, wherein the particles are linearly arranged end to end between the first substrate and the second substrate.

22. The method of claim 14, wherein the particles comprise a polarizable organic material.

23. The method of claim 22, wherein the organic material is one selected from the group consisting of polyaniline, polypyrrole, poly(p-phenylene), poly naphthalene quinine radicals, poly acene quinone radicals, poly phenylenediamine, and polythiophene.

24. The method of claim 14, wherein the particles comprise a polarizable inorganic material.

25. The method of claim 24, wherein the inorganic material is one selected from the group consisting of silica gel, silica, zeolite, and a mesoporous material.

26. The method of claim 14, wherein the sealant comprises an insulating material.

27. The method of claim 26, wherein the sealant comprises one selected from the group consisting of silicon, epoxy, and acryl.