IP Library Granted Patent US 10,930,890
Granted Patent B2
US 10,930,890 · App. 16/995,879 · Granted Feb 23, 2021

Organic optoelectronic component

Inventors: Daniel Riedel (Munich, DE); Nina Riegel (Tegernheim, DE); Thomas Wehlus (Lappersdorf, DE); Arne Fleissner (Regensburg, DE); Armin Heinrichsdobler (Regensburg, DE)
Assignee: PICTIVA DISPLAYS INTERNATIONAL LIMITED
H01L51/5268H01L51/5253
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Quick Facts
Patent No.
US 10,930,890
App. No.
16/995,879
Granted
Feb 23, 2021
Kind
B2
Abstract

An organic optoelectronic component includes an organic functional layer stack between a first electrode and a second electrode including a light-emitting layer formed to emit radiation during operation of the component; a coupling-out layer arranged above the first electrode and/or the second electrode which is in a beam path of the radiation of the light-emitting layer; and a protective layer above the coupling-out layer, wherein the coupling-out layer includes a structured layer and a planarization layer arranged thereabove and the structured layer has a structured surface structured at least in places, the planarization layer planarizes the structured surface of the structured layer, the protective layer cannot be removed without at least partially destroying the coupling-out layer, and adhesion of the structured layer to the planarization layer is smaller than adhesion of the protective layer to the planarization layer.

Claims (21)

1. An organic optoelectronic component comprising:

an organic functional layer stack between a first electrode and a second electrode comprising a light-emitting layer formed to emit radiation during operation of the component;

a coupling-out layer arranged above the first electrode and/or the second electrode which is in a beam path of the radiation of the light-emitting layer; and

a protective layer above the coupling-out layer,

wherein

the coupling-out layer comprises a structured layer and a planarization layer arranged thereabove and the structured layer has a structured surface structured at least in places,

the planarization layer planarizes the structured surface of the structured layer,

the protective layer cannot be removed without at least partially destroying the coupling-out layer, and

adhesion of the structured layer to the planarization layer is smaller than adhesion of the protective layer to the planarization layer.

2. The organic optoelectronic component according to claim 1 , wherein a refractive index of the structured layer and a refractive index of the planarization layer is the same at least in places.

3. The organic optoelectronic component according to claim 1 , wherein the structured layer has structures not visible at least in places for a viewer from outside the organic optoelectronic component.

4. The organic optoelectronic component according to claim 1 , wherein the structured layer has structures size of 1 Nanometer to 100 Micrometer.

5. The organic optoelectronic component according to claim 1 , wherein the structuring is periodic or non-periodic.

6. The organic optoelectronic component according to claim 1 , wherein the planarization layer comprises a polymer or consists of a polymer and the polymer is selected from the group consisting of polyimides, polyacrylates, epoxy resins and silicones.

7. The organic optoelectronic component according to claim 1 , wherein the planarization layer comprises nanoparticles of a metal oxide at least in places.

8. The organic optoelectronic component according to claim 1 , wherein the structured layer is a substrate, a scattering layer or an encapsulation layer.

9. The organic optoelectronic component according to claim 1 , wherein the structured layer comprises glass or consists of glass.

10. The organic optoelectronic component according to claim 1 , wherein a self-organizing monolayer is arranged between the structured layer and the planarization layer.

11. The organic optoelectronic component according to claim 10 , wherein the self-organizing monolayer is formed from thiols, silanes, silanols or phosphonates.

12. The organic optoelectronic component according to claim 1 , wherein the planarization layer is formed from a material having adhesive properties.

13. The organic optoelectronic component according to claim 1 , wherein the planarization layer and the structured layer comprise the same materials.

Assignments (3)
CHANGE OF NAME Recorded Jan 14, 2021
From: DOLYA HOLDCO 5 LIMITED
To: PICTIVA DISPLAYS INTERNATIONAL LIMITED
Reel/Frame 054922/0497 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 14, 2021
From: OSRAM OLED GMBH
To: DOLYA HOLDCO 5 LIMITED
Reel/Frame 054999/0382 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 18, 2020
From: RIEDEL, DANIEL; RIEGEL, NINA; WEHLUS, THOMAS; FLEISSNER, ARNE; HEINRICHSDOBLER, ARMIN
To: OSRAM OLED GMBH
Reel/Frame 053520/0187 →
Priority Claims (1)
DE 10 2016 105 198 · Mar 21, 2016 · national
Continuity (2)
Continuation 16087306
Related Publication 20200381666A1 · Dec 3, 2020