Organic light emitting display and fabricating method of the same

• US 20070170324A1
• Filed: 09/29/2006
• Published: 07/26/2007
• Est. Priority Date: 01/25/2006
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Mobile Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Park, Jin Woo, Lee, Jae Sun, Lim, Dae Ho, Wang, Chan Hee, Lee, Ung Soo, Choi, Dong Soo, Lee, Ho Seok
• Granted Patent: US 7,825,594 B2
• Time in Patent Office: Days
• US Class Current: 248/247
• CPC Class Codes: H10K 50/84 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 50/8426 Peripheral sealing arrangements, e.g. adhesives, sealants
• CPC Class Codes: H10K 59/87 Passivation; Containers; Encapsulations
• CPC Class Codes: H10K 59/8722 Peripheral sealing arrangements, e.g. adhesives, sealants

Abstract

Disclosed are an organic light emitting display and a fabricating method of the same, which form a bracket by at least one material selected from the group consisting of a plastic, a reinforcement plastic, or a high elastic and high molecular organic material in order to enhance an adhesive strength and an elasticity of a substrate and a bracket adhered to each other by means of an adhesive. A first substrate includes a pixel region and a non-pixel region. At least one organic light emitting diode is formed at the pixel region and having a first electrode, an organic layer, and a second electrode. The non-pixel region is formed beside pixel region. A second substrate is bonded to a first side of the first substrate to seal the pixel region. A frit is disposed between the non-pixel region of the first substrate and the second substrate and adheres the first and second substrates to each other. A bracket is formed by at least one material selected from the group consisting of a plastic, a reinforcement plastic, or a high elastic and high molecular organic material. An adhesive is formed by at least one resin selected from the group consisting of epoxy, acrylate, urethane acrylate, and acrylate cyanide, and for adhering the bracket to the first substrate.

Claims

1. An organic light-emitting display-device, comprising:

an organic light-emitting display unit comprising a front substrate, a rear substrate, an array of organic light-emitting pixels and a frit seal, wherein the array is interposed between the front and rear substrates, wherein the frit seal is interposed between the front and rear substrates while surrounding the array; and

a bracket configured to receive at least part of the organic light emitting display unit, the bracket comprising a polymeric material, wherein the display unit is secured to the bracket.

2. The device of claim 1, wherein the bracket is made of the polymeric material in its entirety.

3. The device of claim 1, wherein the bracket is secured to the bracket by an adhesive layer.

4. The device of claim 3, wherein the adhesive comprises one or more selected from the group consisting of epoxy, acrylate, urethane acrylate and acrylate cyanide materials.

5. The device of claim 1, wherein the bracket comprises a rear wall opposing the rear substrate, wherein the rear substrate is bonded to the rear wall of the bracket.

6. The device of claim 1, wherein the rear substrate comprises side surfaces, wherein the bracket comprises side walls, wherein a first one of the side surfaces opposes a first one of the side walls, and wherein the first side surface is bonded to the first side wall.

7. The device of claim 1, wherein the rear substrate comprises side surfaces, wherein the bracket comprises side walls, wherein each of the side surfaces opposes one of the side walls, and wherein each side surface is bonded to the respective side wall.

8. The device of claim 7, wherein the side walls surround the rear substrate.

9. The device of claim 7, wherein the bracket comprises a rear wall opposing the rear substrate, wherein the rear substrate is bonded to the rear wall of the bracket.

10. The device of claim 1, wherein the front substrate comprises side surfaces, wherein the bracket comprises side walls, wherein a first one of the side surfaces opposes a first one of the side walls, and wherein the first side surface is bonded to the first side wall.

11. The device of claim 1, wherein the front substrate comprises side surfaces, wherein the bracket comprises side walls, wherein each of the side surfaces opposes one of the side walls, and wherein each side surface is bonded to the respective side wall.

12. The device of claim 11, wherein the side walls surround the front substrate, the frit seal and the rear substrate.

13. The device of claim 11, wherein the bracket comprises a rear wall opposing the rear substrate, wherein the rear substrate is bonded to the rear wall of the bracket.

14. The device of claim 13, wherein the side walls extend from edges of the rear wall.

15. The device of claim 1, wherein the frit seal comprises one or more materials selected from the group consisting of magnesium oxide (MgO), calcium oxide (CaO), barium oxide (BaO), lithium oxide (Li₂O), sodium oxide (Na₂O), potassium oxide (K₂O), boron oxide (B₂O₃), vanadium oxide (V₂O₅), zinc oxide (ZnO), tellurium oxide (TeO₂), aluminum oxide (Al₂O₃), silicon dioxide (SiO₂), lead oxide (PbO), tin oxide (SnO), phosphorous oxide (P₂O₅), ruthenium oxide (Ru₂O), rubidium oxide (Rb₂O), rhodium oxide (Rh₂O), ferrite oxide (Fe₂O₃), copper oxide (CuO), titanium oxide (TiO₂), tungsten oxide (WO₃), bismuth oxide (Bi₂O₃), antimony oxide (Sb₂O₃), lead-borate glass, tin-phosphate glass, vanadate glass, and borosilicate.

16. A method of making an organic light emitting display device, the method comprising:

providing an organic light-emitting display unit comprising a front substrate, a rear substrate, an array of organic light-emitting pixels and a frit seal, wherein the array is interposed between the front and rear substrates, wherein the frit seal is interposed between the front and rear substrates while surrounding the array;

providing a bracket configured to receive at least part of the organic light emitting display unit, the bracket comprising a polymeric material; and

adhering the display unit to the bracket.

17. The method of claim 16, wherein adhering comprises:

applying an adhesive layer on a surface of the display unit;

contacting a wall of the bracket to the surface; and

curing the adhesive layer, thereby bonding the wall of the bracket and the display unit.

18. The method of claim 17, wherein the adhesive comprises one or more selected from the group consisting of epoxy, acrylate, urethane acrylate and acrylate cyanide materials.

19. The method of claim 16, wherein the bracket is made of the polymeric material in its entirety.

20. The method of claim 16, wherein the bracket comprises a rear wall opposing the rear substrate, wherein the rear substrate is bonded to the rear wall of the bracket.

21. The method of claim 16, wherein the rear substrate comprises side surfaces, wherein the bracket comprises side walls, wherein each of the side surfaces opposes one of the side walls, and wherein each side surface is bonded to the respective side wall.

22. The method of claim 21, wherein the side walls surround the rear substrate, the frit seal and the rear substrate.

23. The method of claim 21, wherein the side walls surround the front substrate, the frit seal and the rear substrate.

24. The method of claim 21, wherein the bracket comprises a rear wall opposing the rear substrate, and wherein the side walls extend from edges of the rear wall.