Flat panel display device and method of manufacturing the same

• US 8,492,974 B2
• Filed: 09/22/2011
• Issued: 07/23/2013
• Est. Priority Date: 11/26/2010
• Status: Active Grant

• Current Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Original Assignee: Samsung Display Company Limited (Samsung Electronics Co. Ltd.)
• Inventors: Lee, Jae-Ho, Han, Dong-Won, Song, Seung-Yong, Kwack, Jin-Ho, Shin, Dae-Beom, Kang, Dong-Hun, Kim, Hyo-Jin
• Primary Examiner(s): Mai, Anh
• Assistant Examiner(s): SANTONOCITO, MICHAEL P
• Application Number:
  US13/240,760
• Publication Number:
  US 20120133275A1
• Time in Patent Office: 670 Days
• Field of Search: 313/506, 313/512, 445/25
• US Class Current: 313/506
• CPC Class Codes: H10K 2102/331 Nanoparticles used in non-emissive layers, e.g. in packaging layer
• CPC Class Codes: H10K 50/8445 multilayered coatings having a repetitive structure, e.g. having multiple organic-inorganic bilayers

Abstract

In a flat panel display device and a method of manufacturing the same, the flat panel display device is manufactured by forming a display unit on a substrate, forming a hydrophobic barrier layer for preventing a material of an organic layer from flowing around the display unit, and forming a thin film sealing layer by alternately stacking an inorganic layer and the organic layer on the display unit. Accordingly, formation of an edge tail of the organic layer is prevented, thereby preventing penetration of external moisture.

Claims

1. A method of manufacturing a flat panel display device, the method comprising the steps of;

forming a display unit on a substrate;

forming an inorganic layer on the display unit, the inorganic layer being in direct contact with the display unit and extending to directly contact a portion of the substrate around the display unit;

forming a hydrophobic barrier layer for preventing a material of an organic layer from flowing, the hydrophobic barrier layer being formed around the display unit and directly on the inorganic layer; and

forming a thin film sealing layer by forming an organic layer on the inorganic layer.

2. The method of claim 1, wherein the hydrophobic barrier layer is formed by using one of an inkjet printing method and a vacuum deposition method.

3. The method of claim 1, wherein a material of the hydrophobic barrier layer comprises one of a fluorine (F)-based material and a Teflon-based material.

4. The method of claim 3, wherein the hydrophobic barrier layer comprises a minute particle with a nanometer size.

5. The method of claim 1, wherein a material of the organic layer comprises one of polyurea and polyacrylate.

6. The method of claim 1, wherein a material of the inorganic layer comprises one of SiNx, Al₂O₃, SiO₂ and TiO₂.

7. The method of claim 1, further comprising the step of forming a second inorganic layer on the organic layer.

8. A flat panel display device, comprising:

a substrate;

a display unit formed on the substrate;

an inorganic layer formed on the display unit, the inorganic layer being in direct contact with display and extending to directly contact a portion of the substrate around the display unit;

a thin film sealing layer formed by forming an organic layer on the inorganic layer; and

a hydrophobic barrier layer formed around the display unit and directly on the inorganic layer for preventing a material of the organic layer from flowing.

9. The flat panel display device of claim 8, wherein a material of the hydrophobic barrier layer comprises one of a fluorine (F)-based material and a Teflon-based material.

10. The flat panel display device of claim 9, wherein the hydrophobic barrier layer comprises a minute particle with a nanometer size.

11. The flat panel display device of claim 8, wherein a material of the organic layer comprises one of polyurea and polyacrylate.

12. The flat panel display device of claim 8, wherein a material of the inorganic layer comprises one of SiNx, Al₂O₃, SiO₂ and TiO₂.

13. The flat panel display device of claim 8, further comprising a second inorganic layer formed on the organic layer.