IP Library Granted Patent US 10,714,710
Granted Patent B2
US 10,714,710 · App. 15/681,108 · Granted Jul 14, 2020

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

Inventors: Junhyuk Woo (Yongin-si, KR); Jeongwon Kim (Yongin-si, KR); Jinho Ju (Yongin-si, KR)
Assignee: Samsung Display Co., Ltd.
H01L51/5284H01L27/322H01L27/3244H01L51/0034H01L51/0061H01L51/0072H01L51/0096H01L51/0097H01L51/5234H01L51/5253H01L51/5281H01L51/56H01L2227/323H01L2251/5338H01L2251/558Y02E10/549
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Quick Facts
Patent No.
US 10,714,710
App. No.
15/681,108
Filed
Aug 18, 2017
Granted
Jul 14, 2020
Kind
B2
Art Unit
2813
USPC
257/40
Abstract

Provided is an organic light-emitting display apparatus including a substrate including a black pigment; a pixel electrode above the substrate; a pixel defining layer above the pixel electrode and having an opening for exposing at least a portion of the pixel electrode; an intermediate layer above the pixel electrode and including an emission layer (EML); and an opposite electrode above the intermediate layer.

Claims (47)

1. An organic light-emitting display apparatus comprising:

a substrate comprising a black pigment;

a pixel electrode above the substrate;

a pixel defining layer above the pixel electrode and having an opening for exposing at least a portion of the pixel electrode;

an intermediate layer above the pixel electrode and comprising an emission layer (EML);

an opposite electrode above the intermediate layer;

a black matrix arranged above the opposite electrode, the black matrix having an opening that exposes at least a portion of an emission area;

a capping layer above the opposite electrode;

a cover layer above the capping layer; and

a thin-film encapsulation layer above the cover layer,

wherein a weight percentage of the black pigment with respect to the substrate is between about 1% and about 15%.

2. The organic light-emitting display apparatus of claim 1 , wherein the black pigment comprises at least one of aniline black (C 66 H 51 Cr 3 N 11 O 12 ), carbon black, lamp black, graphite, Paliogen® Black (C 40 H 26 N 2 O 4 ), and perylene black (C 40 H 26 N 2 O 6 ).

3. The organic light-emitting display apparatus of claim 1 , wherein a light absorbance, of light in a visible ray range, of the substrate is equal to or greater than about 90%.

4. The organic light-emitting display apparatus of claim 1 , wherein a thickness of the substrate is between about 5 μm and about 40 μm.

5. The organic light-emitting display apparatus of claim 1 , further comprising a polarizing layer above the thin-film encapsulation layer.

6. The organic light-emitting display apparatus of claim 5 , wherein reflectance of the organic light-emitting display apparatus comprising the polarizing layer is equal to or less than about 5%.

7. An organic light-emitting display apparatus comprising:

a substrate comprising a black pigment;

a pixel electrode above the substrate;

a pixel defining layer above the pixel electrode and having an opening for exposing at least a portion of the pixel electrode;

an intermediate layer above the pixel electrode and comprising an emission layer (EML);

an opposite electrode above the intermediate layer;

a capping layer above the opposite electrode;

a cover layer above the capping layer;

a thin-film encapsulation layer above the cover layer; and

a black matrix arranged above the thin-film encapsulation layer, the black matrix having an opening that exposes at least a portion of an emission area.

8. The organic light-emitting display apparatus of claim 7 , wherein the opposite electrode comprises a low-reflection layer.

9. The organic light-emitting display apparatus of claim 7 , further comprising a color filter that covers the opening of the black matrix.

10. The organic light-emitting display apparatus of claim 9 , wherein reflectance of the organic light-emitting display apparatus comprising the color filter is equal to or less than about 5%.

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

forming a substrate by hardening a substrate composition comprising a black pigment;

forming a pixel electrode above the substrate;

forming, above the pixel electrode, a pixel defining layer having an opening for exposing at least a portion of the pixel electrode;

forming, above the pixel electrode, an intermediate layer comprising an emission layer (EML);

forming an opposite electrode above the intermediate layer;

forming a capping layer above the opposite electrode;

forming a cover layer above the capping layer; and

forming a thin-film encapsulation layer above the cover layer,

wherein a black matrix is arranged above the opposite electrode, the black matrix having an opening that exposes at least a portion of an emission area, and

wherein a weight percentage of the black pigment with respect to the substrate is between about 1% and about 15%.

12. The method of claim 11 , wherein the black pigment comprises at least one of aniline black (C 66 H 51 Cr 3 N 11 O 12 ), carbon black, lamp black, graphite, Paliogen® Black (C 40 H 26 N 2 O 4 ), and perylene black (C 40 H 26 N 2 O 6 ).

13. The method of claim 11 , wherein a thickness of the substrate is between about 5 μm and about 40 μm.

14. The method of claim 11 , further comprising, after the forming of the thin-film encapsulation layer, forming a polarizing layer above the thin-film encapsulation layer.

15. The method of claim 11 , further comprising, after the forming of the thin-film encapsulation layer, forming, above the thin-film encapsulation layer, a black matrix having an opening that exposes at least a portion of an emission area.

16. The method of claim 15 , further comprising, after the forming of the black matrix, forming a color filter that covers the opening of the black matrix.

17. The organic light-emitting display apparatus of claim 1 , wherein the substrate comprises polyimide (PI).

18. The method of claim 11 , wherein the substrate comprises polyimide (PI).

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2017
From: WOO, JUNHYUK; KIM, JEONGWON; JU, JINHO
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 043337/0655 →
Priority Claims (1)
KR 10-2016-0105590 · Aug 19, 2016 · national
Continuity (1)
Related Publication 20180053918A1 · Feb 22, 2018
Cited By (3)
US 12,382,793 US 12,635,392 US 12,672,475