Organic light-emitting display having organic layer with uneven boundary lines

Patent metadata

Field	Value
Publication number	US-10680212-B2
Application number	US-201916287852-A
Country	US
Kind code	B2
Filing date	Feb 27, 2019
Priority date	Feb 2, 2016
Publication date	Jun 9, 2020
Grant date	Jun 9, 2020

Abstract

A method of manufacturing an organic light-emitting display apparatus includes: forming a lift-off layer on a substrate including a first electrode, the lift-off layer including a fluoropolymer; forming a pattern layer on the lift-off layer; etching the lift-off layer between patterns of the pattern layer by utilizing a first solvent to expose the first electrode; forming an organic functional layer on the first electrode and the pattern layer, the organic functional layer including an emission layer; removing remaining portions of the lift-off layer by utilizing a second solvent; and forming a second electrode on the organic functional layer.

First claim

What is claimed is:

1. An organic light-emitting display apparatus comprising:
a substrate;
a first electrode on the substrate;
an organic functional layer on the first electrode, the organic functional layer comprising an emission layer; and
a second electrode on the organic functional layer,
wherein in a plan view, an unevenness of boundary lines of the organic functional layer is greater than an unevenness of boundary lines of the first electrode, and the boundary lines of the organic functional layer have a wavy shape.

2. The organic light-emitting display apparatus of claim 1 , wherein the organic functional layer further comprises a hole injection layer, a hole transport layer, an electron transport layer, and/or an electron injection layer.

3. The organic light-emitting display apparatus of claim 1 , further comprising a pixel defining layer surrounding edges of the first electrode.

4. The organic light-emitting display apparatus of claim 1 , wherein the emission layer comprises an organic emission layer.

5. An organic light-emitting display apparatus comprising:
a substrate;
a first anode on the substrate;
a second anode on the substrate, the second anode being spaced apart from the first anode;
a first organic functional layer on the first anode, the first organic functional layer comprising a first emission layer;
a second organic functional layer on the second anode, the second organic functional layer comprising a second emission layer;
a first auxiliary cathode on the first organic functional layer; and
a second auxiliary cathode on the second organic functional layer,
wherein in a plan view, an unevenness of boundary lines of the first organic functional layer is greater than an unevenness of boundary lines of the first anode, and the boundary lines of the first organic functional layer have a wavy shape, and
wherein in a plan view, an unevenness of boundary lines of the second organic functional layer is greater than an unevenness of boundary lines of the second anode, and the boundary lines of the second organic functional layer have a wavy shape.

6. The organic light-emitting display apparatus of claim 5 , wherein each of the first and second organic functional layers further comprises a hole injection layer, a hole transport layer, an electron transport layer, and/or an electron injection layer.

7. The organic light-emitting display apparatus of claim 5 , wherein the second organic functional layer is spaced apart from the first organic functional layer.

8. The organic light-emitting display apparatus of claim 5 , wherein the first emission layer comprises a first organic emission layer, the second emission layer comprises a second organic emission layer, and a first color emitted from the first emission layer is different from a second color emitted from the second emission layer.

9. The organic light-emitting display apparatus of claim 8 , further comprising:
a third anode on the substrate, the third anode being spaced apart from each of the first and second anodes;
a third organic functional layer on the third anode, the third organic functional layer comprising a third emission layer; and
a third auxiliary cathode on the third organic functional layer,
wherein a third color emitted from the third emission layer is different from each of the first and second colors emitted from the first and second emission layers.

10. The organic light-emitting display apparatus of claim 9 , wherein the first, second and third colors are mixed to generate white light.

11. The organic light-emitting display apparatus of claim 5 , wherein the first auxiliary cathode is spaced apart from the second auxiliary cathode.

12. The organic light-emitting display apparatus of claim 5 , further comprising a pixel defining layer surrounding edges of the first and second anodes.

13. The organic light-emitting display apparatus of claim 5 , further comprising a second electrode integrally formed on the first and second auxiliary cathodes.

14. An organic light-emitting display apparatus comprising:
a substrate;
a first anode on the substrate;
a second anode on the substrate, the second anode being spaced apart from the first anode;
a first organic functional layer on the first anode, the first organic functional layer comprising a first emission layer;
a second organic functional layer on the second anode, the second organic functional layer comprising a second emission layer; and
a second electrode integrally formed on the first and second organic functional layers,
wherein in a plan view, an unevenness of boundary lines of the first organic functional layer is greater than an unevenness of boundary lines of the first anode, and the boundary lines of the first organic functional layer have a wavy shape, and
wherein in a plan view, an unevenness of boundary lines of the second organic functional layer is greater than an unevenness of boundary lines of the second anode, and the boundary lines of the second organic functional layer have a wavy shape.

Assignees

• Samsung Display Co Ltd

Inventors

• Kwon Younggil
• Kim Sungwoong
• Choi Jinbaek

Classifications

• H01L2227/323

  Electricity · mapped topic

• H01L51/0023

  Electricity · mapped topic

• H01L51/5228

  Electricity · mapped topic

• H01L51/0011

  Electricity · mapped topic

• H01L27/3283

  Electricity · mapped topic