Organic optoelectronic component with a light emitting element and a light detecting element and method for operating such an organic optoelectronic component

Patent metadata

Field	Value
Publication number	US-9721992-B2
Application number	US-201314432554-A
Country	US
Kind code	B2
Filing date	Oct 25, 2013
Priority date	Nov 2, 2012
Publication date	Aug 1, 2017
Grant date	Aug 1, 2017

Abstract

An organic optoelectronic component and a method for operating an organic optoelectronic component are disclosed. In an embodiment an organic optoelectronic component includes an organic light emitting element including an organic functional layer stack having an organic light emitting layer between two electrodes and an organic light detecting element including a first organic light detecting element including a first organic light detecting layer, and a second organic light detecting element including a second organic light detecting layer, wherein the organic light emitting element and the organic light detecting element are arranged laterally adjacent on a common substrate, wherein the first organic light detecting element is configured to detect ambient light, wherein the second organic light detecting layer of the second organic light detecting element is arranged between two non-transparent layers, the non-transparent layers shade the second organic light detecting layer of the second organic light detecting element from ambient light.

First claim

The invention claimed is:

1. An organic optoelectronic component comprising:
at least one organic light emitting element comprising an organic functional layer stack having at least one organic light emitting layer between two electrodes; and
at least one organic light detecting element comprising at least one first organic light detecting element comprising at least one first organic light detecting layer, and at least one second organic light detecting element comprising at least one second organic light detecting layer,
wherein the at least one organic light emitting element and the at least one organic light detecting element are arranged laterally adjacent on a common substrate,
wherein the at least one first organic light detecting element is configured to detect ambient light,
wherein the at least one second organic light detecting layer of the at least one second organic light detecting element is permanently arranged between two non-transparent layers, the two non-transparent layers shade the at least one second organic light detecting layer of the at least one second organic light detecting element from ambient light,
wherein the two non-transparent layers reduce a portion of ambient light radiated onto the at least one second organic light detecting element by at least 90%, and
wherein the at least one organic light emitting element is transparent and configured to emit light through the substrate and in a direction facing away from the substrate.

2. The component according to claim 1 , wherein at least one of the two non-transparent layers comprises a non-transparent covering layer, the non-transparent covering layer being arranged on a side of the common substrate that faces away from the at least one second organic light detecting layer of the at least one second light detecting element.

3. The component according to claim 1 , wherein at least one of the two non-transparent layers comprises a non-transparent covering layer, the non-transparent covering layer being arranged on a side of the common substrate that faces the at least one second organic light detecting layer of the at least one second light detecting element.

4. The component according to claim 1 , wherein at least one of the two non-transparent layers comprises a non-transparent covering layer, the non-transparent covering layer, as viewed from the substrate, is arranged above the at least one second organic light detecting layer of the at least one second light detecting element.

5. The component according to claim 1 , wherein at least one of the non-transparent layers comprises an electrode of the at least one second organic light detecting element.

6. The component according to claim 5 , wherein the electrode is a non-transparent layer and is arranged on that side of the at least one second organic light detecting layer of the at least one second light detecting element which faces away from the common substrate.

7. The component according to claim 1 , wherein the common substrate forms an optical waveguide, the optical waveguide guides light from the at least one organic light emitting element internally in the optoelectronic component to the at least one second light detecting element.

8. The component according to claim 1 , wherein light generated during operation in the at least one organic light emitting layer of the at least one organic light emitting element is radiated internally in the optoelectronic component directly onto the at least one organic light detecting layer of the at least one organic second light detecting element.

9. The component according to claim 1 , wherein the at least one first organic light detecting element is configured to detect ambient light through the substrate.

10. The component according to claim 1 , wherein the at least one first organic light detecting element is configured to detect ambient light which is radiated onto the organic optoelectronic component from an opposite side of the organic optoelectronic component relative to the substrate.

11. The component according to claim 1 , wherein the at least one first organic light detecting element and/or the at least one second organic light detecting element are/is an organic photodiode, an organic photoconductor and/or an organic photoresistor.

12. The component according to claim 1 , wherein a plurality of first organic light detecting elements each configured to detect ambient light is arranged on the common substrate.

13. The component according to claim 1 , wherein a plurality of second organic light detecting elements is arranged on the common substrate, wherein each of the plurality of second organic light detecting elements comprises at least one second organic light detecting layer arranged between two non-transparent layers, the two non-transparent layers shade the respective at least one second organic light detecting layer from ambient light.

14. A method for operating the organic optoelectronic component according to claim 1 , the method comprising:
applying a current and/or voltage to the organic optoelectronic component;
measuring the light by the at least one organic light detecting element; and
regulating the at least one organic light emitting element by regulating the current and/or voltage based on the light measurement.

15. The method according to claim 14 , wherein the first organic light detecting element detects ambient light, and the second organic light detecting element detects light guided internally in the optoelectronic component from the at least one organic light emitting element to the at least one second organic light detecting element.

16. An organic optoelectronic component comprising:
at least one organic light emitting element comprising an organic functional layer stack having at least one organic light emitting layer between two electrodes; and
at least one organic light detecting element comprising at least one first organic light detecting element comprising at least one first organic light detecting layer,
wherein the at least one organic light emitting element and the at least one organic light detecting element are arranged laterally adjacent on a common substrate,
wherein the at least one first organic light detecting layer of the at least one first organic light detecting element is permanently arranged between two non-transparent layers, the two non-transparent layers shade the at least one first organic light detecting layer of the at least one first organic light detecting element from ambient light,
wherein the two non-transparent layers reduce a portion of ambient light radiated onto the at least one first organic light detecting element by at least 90%, and
wherein the at least one organic light emitting element is transparent and is configured to emit light through the substrate and in a direction facing away from the substrate.

Assignees

• Osram Oled Gmbh

Inventors

• Popp Michael
• Philippens Marc

Classifications

• H05B45/60

  Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED] · CPC title

• H05B33/0896

  Electricity · mapped topic

• H01L27/288 Primary

  Electricity · mapped topic

• H01L51/0042

  Electricity · mapped topic

• H01L2251/5323

  Electricity · mapped topic