Display apparatus and method of fabricating the same

Patent metadata

Field	Value
Publication number	US-9343700-B2
Application number	US-201414284300-A
Country	US
Kind code	B2
Filing date	May 21, 2014
Priority date	Aug 14, 2013
Publication date	May 17, 2016
Grant date	May 17, 2016

Abstract

Provided is a display apparatus including: a substrate including a display area and a periphery; a display element disposed on the display area of the substrate; and an encapsulation layer including a first inorganic layer, an organic layer, and a second inorganic layer that are sequentially formed to cover the display element, wherein the organic layer includes: a first organic layer formed on of the periphery of the substrate and on the substrate; and a second organic layer formed on the first inorganic layer so as to overlap the display element.

First claim

What is claimed is:

1. A display apparatus comprising:
a substrate including a display area and a periphery;
a display element disposed on the display area of the substrate; and
an encapsulation layer comprising a first inorganic layer, an organic layer, and a second inorganic layer that are sequentially formed to cover the display element,
wherein the organic layer comprises:
a first organic layer formed on the periphery of the substrate so as not to overlap the display element; and
a second organic layer formed on the first inorganic layer so as to overlap the display element.

2. The display apparatus of claim 1 , wherein the first organic layer has greater adhesion strength than adhesion strength of the second organic layer.

3. The display apparatus of claim 1 , wherein the second organic layer has greater light transmittance than light transmittance of the first organic layer.

4. The display apparatus of claim 1 , wherein the organic layer is formed using an inkjet method or a jet dispenser.

5. The display apparatus of claim 1 , wherein the first organic layer is formed using an epoxy-based material or an acryl-based material.

6. The display apparatus of claim 1 , wherein the first organic layer is formed using an inkjet method, the first organic layer having viscosity of about 10 to 20 CPS.

7. The display apparatus of claim 1 , wherein the first organic layer is formed using a jet dispenser, the first organic layer having viscosity of about 1000 to about 100,000 CPS.

8. The display apparatus of claim 1 , wherein the second organic layer has smaller surface tension than surface tension of the first organic layer.

9. The display apparatus of claim 1 , wherein the second organic layer has a size that is equal to or greater than a size of the display element, so as to overlap the display element.

10. The display apparatus of claim 1 , wherein the display element comprises a plurality of organic light-emitting display devices that are spaced apart from each other by a gap.

11. The display apparatus of claim 1 , wherein the substrate is a flexible substrate.

12. A display apparatus comprising:
a substrate including a display area and a periphery;
a display element disposed on the display area of the substrate; and
an encapsulation layer comprising an inorganic layer and an organic layer that are alternately formed, so as to cover the display element, a top layer of the encapsulation layer being an inorganic layer,
wherein the organic layer comprises:
a first organic layer formed on the periphery of the substrate so as not to overlap the display element; and
a second organic layer formed on the same layer as the inorganic layer so as to overlap the display element.

13. The display apparatus of claim 12 , wherein the first organic layer and the second organic layer are formed using an inkjet method or a jet dispenser.

14. The display apparatus of claim 12 , wherein the first organic layer has greater adhesion strength than adhesion strength of the second organic layer and comprises an inorganic filler.

15. The display apparatus of claim 12 , wherein the second organic layer has greater light transmittance than light transmittance of the first organic layer and has a size that is equal to or greater than a size of the display element, so as to overlap the display element.

16. The display apparatus of claim 12 , wherein the substrate is a flexible substrate, and the display element comprises a plurality of organic light-emitting devices that are spaced apart from each other by a gap.

17. A method of fabricating a display apparatus, the method comprising:
forming a display element on a substrate, the substrate including a display area and a periphery;
forming a first inorganic layer on the substrate so as to cover the display element;
forming a first organic layer on the periphery of the substrate so as not to overlap the display element;
forming a second organic layer on a same layer as the first inorganic layer so as to overlap the display element; and
forming a second inorganic layer on the first organic layer and the second organic layer.

18. The method of claim 17 , wherein the first organic layer and the second organic layer are formed using an inkjet method or a jet dispenser.

19. The method of claim 17 , wherein the first organic layer has greater adhesion strength than adhesion strength of the second organic layer, and the second organic layer has greater light transmittance than light transmittance of the first organic layer.

20. The method of claim 17 , wherein the substrate is a flexible substrate, and the display element comprises a plurality of organic light-emitting devices that are spaced apart from each other by a gap.

Assignees

• Samsung Display Co Ltd

Inventors

• Cho Yoon-Hyeung
• Oh Min-Ho
• Lee Byoung-Duk
• Kim Yong-Tak
• Kim Jong-Woo
• Ju Yong-Chan
• Chung Yun-Ah

Classifications

• Y10T428/239

  Complete cover or casing · CPC title

• H10K50/844

  Encapsulations · CPC title

• H10K59/873 Primary

  Encapsulations · CPC title

• H01L51/5253 Primary

  Electricity · mapped topic

• H01L27/3244

  Electricity · mapped topic