IP Library Granted Patent US 11,765,932
Granted Patent B2
US 11,765,932 · App. 17/148,096 · Granted Sep 19, 2023

Organic optoelectronic component with a coupling-out layer

Inventors: Daniel Riedel (Munich, DE); Nina Riegel (Tegemheim, DE); Thomas Wehlus (Lappersdorf, DE); Arne Fleissner (Regensburg, DE); Armin Heinrichsdobler (Regensburg, DE)
Assignee: Pictiva Displays International Limited
H10K50/854H10K50/844
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Quick Facts
Patent No.
US 11,765,932
App. No.
17/148,096
Granted
Sep 19, 2023
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 (25)

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 protective layer is configured so that the coupling-out layer is at least partially destroyed during removal of the protective layer.

2. The organic optoelectronic component according to claim 1 , 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, and wherein the planarization layer planarizes the structured surface of the structured layer.

3. The organic optoelectronic component according to claim 2 , 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 2 , wherein the structured layer has structures that have a size of 1 Nanometer to 100 Micrometer.

5. The organic optoelectronic component according to claim 2 , wherein the structuring is periodic or non-periodic.

6. The organic optoelectronic component according to claim 2 , wherein the planarization layer comprises 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 2 , wherein the planarization layer comprises nanoparticles of a metal oxide at least in places.

8. The organic optoelectronic component according to claim 2 , wherein the structured layer is a substrate, a scattering layer or an encapsulation layer.

9. The organic optoelectronic component according to claim 2 , wherein the structured layer comprises glass.

10. The organic optoelectronic component according to claim 2 , 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 2 , wherein the planarization layer is formed from a material having adhesive properties.

13. The organic optoelectronic component according to claim 2 , wherein the planarization layer and the structured layer comprise the same materials.

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

wherein the coupling-out layer comprises a structured layer and a planarization layer arranged thereabove,

wherein the structured layer has a structured surface structured at least in places, and

wherein the planarization layer planarizes the structured surface of the structured layer by filling recesses of the surface of the structured layer.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2021
From: RIEDEL, DANIEL; RIEGEL, NINA; WEHLUS, THOMAS; FLEISSNER, ARNE; HEINRICHSDOBLER, ARMIN
To: OSRAM OLED GMBH
Reel/Frame 054909/0548 →
CHANGE OF NAME Recorded Jan 13, 2021
From: DOLYA HOLDCO 5 LIMITED
To: PICTIVA DISPLAYS INTERNATIONAL LIMITED
Reel/Frame 054909/0844 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 13, 2021
From: OSRAM OLED GMBH
To: DOLYA HOLDCO 5 LIMITED
Reel/Frame 054980/0198 →
Priority Claims (1)
DE 10 2016 105 198.5 · Mar 21, 2016 · national
Continuity (3)
Continuation 16995879 · Aug 18, 2020
Continuation 16087306
Related Publication 20210184175A1 · Jun 17, 2021