Organic light emitting diode display and method for manufacturing the same

Patent metadata

Field	Value
Publication number	US-9287525-B2
Application number	US-201514686676-A
Country	US
Kind code	B2
Filing date	Apr 14, 2015
Priority date	Dec 9, 2011
Publication date	Mar 15, 2016
Grant date	Mar 15, 2016

Abstract

An exemplary embodiment described technology relates generally to an organic light emitting diode (OLED) display and a manufacturing method thereof. The organic light emitting diode (OLED) display according to an exemplary embodiment includes: a substrate; an encapsulation member; an organic light emitting element between the substrate and the encapsulation member; a middle sealing member including one side disposed between the substrate and the encapsulation member and another side extended from the one side to be bent and enclosing an edge of the encapsulation member; a first sealant sealing and combining the one side of the middle sealing member and the substrate to each other; a second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and a getter at the one side of the middle sealing member and the encapsulation member.

First claim

What is claimed is:

1. An organic light emitting diode (OLED) display comprising:
a substrate;
an encapsulation member;
an organic light emitting element between the substrate and the encapsulation member;
a middle sealing member with an embayment structure and having an opening facing toward the organic light emitting element, the middle sealing member comprising one side facing the substrate and another side facing the encapsulation member, the one side and the other side being parallel to the substrate;
a first sealant between the one side of the middle sealing member and the substrate, the first sealant sealing and combining the one side of the middle sealing member and the substrate to each other;
a second sealant between the other side of the middle sealing member and the encapsulation member, the second sealant sealing and combining the other side of the middle sealing member and the encapsulation member to each other; and
a getter filled between the one side and the other side of the middle sealing member,
wherein a portion of the getter protrudes from the opening towards the organic light emitting element.

2. The organic light emitting diode (OLED) display of claim 1 , wherein
the getter is positioned closer to the organic light emitting element than the first sealant and the second sealant.

3. The organic light emitting diode (OLED) display of claim 1 , wherein
the getter maintains a vacuum state of a space between the substrate and the encapsulation member.

4. A manufacturing method of an organic light emitting diode (OLED) display, the method comprising:
forming an organic light emitting element on a substrate;
sealing and combining one side of a middle sealing member to the substrate by using a first sealant;
coating a getter on the middle sealing member;
disposing an encapsulation member on the getter;
coating a second sealant on the encapsulation member; and
bending another side of the middle sealing member extended from the one side of the middle sealing member to close and surround an edge of the encapsulation member, and sealing and combining the other side of the middle sealing member and the encapsulation member through the second sealant,
wherein the sealing and combining of the one side of the middle sealing member to the substrate by using the first sealant comprises:
bending the middle sealing member to have an “L” shape structure, and

wherein the one side of the middle sealing member is a bottom side of the “L” shape structure.

5. The manufacturing method of claim 4 , wherein
the getter is positioned closer to the organic light emitting element than the first sealant.

6. The manufacturing method of claim 4 , wherein
the getter maintains a vacuum state of a space between the substrate and the encapsulation member.

7. The manufacturing method of claim 4 , wherein
the getter is coated in a liquid state.

8. A manufacturing method of an organic light emitting diode (OLED) display, the method comprising:
forming an organic light emitting element on a substrate;
coating a first sealant on the substrate;
forming a middle sealing member having an embayment structure with a “U” shape;
filling a space between one side of the middle sealing member and another side of the middle sealing member defining an opening of the “U” shape of the middle sealing member with a getter;
sealing and combining the one side of the middle sealing member to the substrate by using the first sealant so that the “U” shape of the middle sealing member is turned on its side with the opening of the “U” shape facing the organic light emitting element;
coating a second sealant on the other side of the middle sealing member; and
sealing and combining the other side of the middle sealing member and an encapsulation member by using the second sealant,
wherein a portion of the getter protrudes from the opening towards the organic light emitting element.

9. The manufacturing method of claim 8 , wherein
the getter is positioned closer to the organic light emitting element than the first sealant and the second sealant.

10. The manufacturing method of claim 8 , wherein
the getter maintains a vacuum state of a space between the substrate and the encapsulation member.

11. The manufacturing method of claim 8 , wherein
the getter is coated in a liquid state.

Assignees

• Samsung Display Co Ltd

Inventors

• Prushinskiy Valeriy
• Hyun Won-Sik
• Na Heung-Yeol
• Kim Min-Soo
• Choi Beohm-Rock

Classifications

• H10K59/8722 Primary

  Peripheral sealing arrangements, e.g. adhesives, sealants · CPC title

• H10K50/846

  comprising getter material or desiccants · CPC title

• H10K59/874 Primary

  including getter material or desiccant · CPC title

• H01L51/5246

  Electricity · mapped topic

• H01L51/56

  Electricity · mapped topic