IP Library Granted Patent US 10,944,071
Granted Patent B2
US 10,944,071 · App. 16/241,411 · Granted Mar 9, 2021

Organic light-emitting display apparatus and method of manufacturing the same

Inventor: Tae-Wook Kang (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L51/5246H01L51/5206H01L51/5209H01L51/5221H01L51/5225H01L51/5259H01L51/56H01L27/322H01L2227/323
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Quick Facts
Patent No.
US 10,944,071
App. No.
16/241,411
Granted
Mar 9, 2021
Kind
B2
Abstract

A an organic light-emitting display apparatus, including a first substrate, a display unit having a plurality of organic light-emitting devices that is formed on the first substrate, a second substrate disposed on the display unit, and a filler included between the first substrate and the second substrate. The organic light-emitting device includes a first electrode formed on the first substrate, an intermediate layer that is disposed on the first electrode and includes an organic emission layer, and a porous second electrode disposed on the intermediate layer.

Claims (44)

1. An organic light-emitting display apparatus comprising:

a first substrate;

a display unit disposed on the first substrate and comprising organic light-emitting devices;

a second substrate facing the display unit; and

a color filter disposed on the second substrate,

wherein:

the organic light-emitting devices each comprises:

a first electrode disposed on the first substrate;

an intermediate layer disposed on the first electrode and comprising an organic emission layer;

a porous second electrode disposed on the intermediate layer;

a filler comprising an organic material disposed between the first substrate and the second substrate; and

a porous separation layer disposed between the porous second electrode and the filler;

the filler directly contacts the porous separation layer; and

the porous separation layer comprises an organic material.

2. The organic light-emitting display apparatus of claim 1 , further comprising an overcoat layer disposed on the color filter.

3. The organic light-emitting display apparatus of claim 1 , further comprising a black matrix disposed on the second substrate.

4. The organic light-emitting display apparatus of claim 1 , wherein the filler comprises silicon, an acryl-based resin, an epoxy-based resin, a urethane-based resin, or a mixture thereof.

5. The organic light-emitting display apparatus of claim 1 , wherein the filler comprises a getter material.

6. The organic light-emitting display apparatus of claim 1 , wherein the filler completely fills a space between the display unit and the second substrate.

7. The organic light-emitting display apparatus of claim 6 , wherein the filler covers the display unit and contacts the first substrate.

8. The organic light-emitting display apparatus of claim 1 , further comprising a sealant bonding the first substrate and the second substrate.

9. The organic light-emitting display apparatus of claim 8 , wherein the sealant comprises a glass frit.

10. The organic light-emitting display apparatus of claim 8 , further comprising a getter disposed between the sealant and the display unit.

11. The organic light-emitting display apparatus of claim 1 , wherein the impurities comprise an outgas generated by the color filter.

12. The organic light-emitting display apparatus of claim 1 , wherein the porous second electrode comprises lithium (Li), calcium (Ca), LiF/Ca, LiF/Al, aluminum (Al), silver (Ag), magnesium (Mg), ytterbium (Yb), or a combination thereof.

13. The organic light-emitting display apparatus of claim 1 , wherein a pore diameter of the porous second electrode is about 3 Å.

14. The organic light-emitting display apparatus of claim 1 , wherein a thickness of the porous second electrode is in a range of about 1 Å to about 200 Å.

15. A method of manufacturing an organic light-emitting display apparatus, the method comprising:

forming a display unit on a first substrate;

disposing a filler on the display unit; and

disposing a second substrate on the filler,

wherein:

the forming of the display unit on the first substrate comprises:

forming a first electrode on the first substrate;

forming an organic emission layer on the first electrode; and

forming a porous second electrode on the organic emission layer;

the method further comprises:

forming a porous separation layer between the porous second electrode and the filler;

and

forming a sealant between the first substrate and the second substrate bonding the first substrate and the second substrate, the sealant surrounding the display unit and the filler and having a predetermined spacing from the display unit;

the filler covers the porous second electrode, a side of the porous separation layer, and a top of the porous separation layer;

the filler is formed so as not to extend beyond the sealant;

the filler comprises an organic material and the organic material directly contacts the porous separation layer; and

the porous separation layer comprises an organic material.

Priority Claims (1)
KR 10-2013-0096887 · Aug 14, 2013 · national
Continuity (2)
Division 14312906 · Jun 24, 2014
Related Publication 20190157610A1 · May 23, 2019