IP Library Granted Patent US 8,314,547
Granted Patent B2
US 8,314,547 · App. 12/679,138 · Granted Nov 20, 2012

Opto-electronic component

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Quick Facts
Patent No.
US 8,314,547
App. No.
12/679,138
Granted
Nov 20, 2012
Kind
B2
Abstract

An optoelectronic device comprises an organic layer sequence ( 1 ), which emits an electromagnetic radiation ( 15 ) having a first wavelength spectrum during operation, and also a structured layer ( 2 ) which is disposed downstream of the organic layer sequence ( 1 ) in the beam path of the electromagnetic radiation ( 15 ) emitted by the organic layer sequence ( 1 ) and has first and second regions ( 2 A, 2 B). In this case, the first regions ( 2 A) each have a wavelength conversion layer ( 3 ) designed to convert at least partially electromagnetic radiation ( 15 ) having the first wavelength spectrum into an electromagnetic radiation ( 16 ) having a second wavelength spectrum. Furthermore, the second regions ( 2 B) each have a filter layer ( 4 ), which is opaque to an electromagnetic radiation having a third wavelength spectrum, which corresponds to at least one part of the second wavelength spectrum.

Claims (22)

1. An optoelectronic device, comprising:

an organic layer sequence which emits an electromagnetic radiation having a first wavelength spectrum during operation; and

a structured layer disposed downstream of the organic layer sequence in a beam path of the electromagnetic radiation emitted by the organic layer sequence and including first and second regions;

wherein the first regions each include a wavelength conversion layer configured to convert at least partially electromagnetic radiation having a first wavelength spectrum into an electromagnetic radiation having a second wavelength spectrum;

wherein the second regions each include a filter layer which is at least partially opaque to an electromagnetic radiation having a third wavelength spectrum which corresponds to at least one part of the second wavelength spectrum;

wherein the first and second regions of the structured layer are arranged laterally in a beam path of the optoelectronic device; and

wherein the filter layer is transparent to the electromagnetic radiation having the first wavelength spectrum.

2. The optoelectronic device as claimed in claim 1 , wherein the first wavelength spectrum comprises a blue wavelength range and the second wavelength spectrum comprises a yellow wavelength range.

3. The optoelectronic device as claimed in claim 1 , wherein the optoelectronic device has a non-yellow color impression.

4. The optoelectronic device as claimed in claim 1 , wherein the filter layer is configured to convert the electromagnetic radiation having the third wavelength spectrum into an electromagnetic radiation from a non-visible wavelength range.

5. The optoelectronic device as claimed in claim 4 , wherein the filter layer is further configured to absorb the electromagnetic radiation having the third wavelength spectrum.

6. The optoelectronic device as claimed in claim 1 , further comprising:

a second wavelength conversion layer disposed downstream of at least one of the first regions and the second regions in the beam path of the electromagnetic radiation emitted by the organic layer sequence and is configured to convert at least partially electromagnetic radiation from a wavelength range lying below a wavelength range of the first wavelength spectrum into an electromagnetic radiation from the wavelength range of the first wavelength spectrum.

7. The optoelectronic device as claimed in claim 6 , wherein the second wavelength conversion layer is configured to convert electromagnetic radiation from an ultraviolet wavelength range into an electromagnetic radiation from a blue wavelength range.

8. The optoelectronic device as claimed in claim 1 , wherein the first regions each have a second filter layer disposed downstream of the wavelength conversion layer in the beam path of the electromagnetic radiation emitted by the organic layer sequence and which is at least partially opaque to an electromagnetic radiation having a fourth wavelength spectrum which corresponds to at least one part of the first wavelength spectrum.

9. The optoelectronic device as claimed in claim 8 , wherein the second filter layer is configured at least partially to absorb the electromagnetic radiation having the fourth wavelength spectrum.

10. The optoelectronic device as claimed in claim 8 , wherein the second filter layer is configured at least partially to reflect the electromagnetic radiation having the fourth wavelength spectrum.

11. The optoelectronic device as claimed in claim 1 , further comprising:

an encapsulation one of disposed upstream and disposed downstream of the structured layer in the beam path of the electromagnetic radiation emitted by the organic layer sequence.

12. The optoelectronic device as claimed in claim 11 , wherein the encapsulation comprises a thin-film encapsulation.

13. The optoelectronic device as claimed in claim 1 , wherein the electromagnetic radiation which is emitted by the optoelectronic device corresponds to a superimposition of the electromagnetic radiation having the first wavelength spectrum and the electromagnetic radiation having the second wavelength spectrum.

14. The optoelectronic device as claimed in claim 1 , wherein the structured layer has at least one of striped, crossed-striped, circular, triangular, and rectangular regions.

Assignments (4)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 11, 2020
From: OSRAM OLED GMBH
To: DOLYA HOLDCO 5 LIMITED
Reel/Frame 053464/0374 →
CORRECTIVE ASSIGNMENT TO CORRECT THE 11/658.772 REPLACED 11/658.772 PROPERTY NUMBERS PREVIOUSLY RECORDED AT REEL: 053464 FRAME: 0395. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Aug 11, 2020
From: DOLYA HOLDCO 5 LIMITED
To: PICTIVA DISPLAYS INTERNATIONAL LIMITED
Reel/Frame 053464/0395 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 21, 2016
From: OSRAM OPTO SEMICONDUCTORS GMBH
To: OSRAM OLED GMBH
Reel/Frame 037567/0993 →
CORRECTIVE ASSIGNMENT TO CORRECT THE NAME OF THE THIRD ASSIGNOR FROM BENJAMIN KLAUS KRUMMACHER TO BENJAMIN CLAUS KRUMMACHER PREVIOUSLY RECORDED ON REEL 025399 FRAME 0170. ASSIGNOR(S) HEREBY CONFIRMS THE ASSIGNMENT. Recorded Mar 8, 2011
From: KLEIN, MARKUS; VON MALM, NORWIN; KRUMMACHER, BENJAMIN CLAUS
To: OSRAM OPTO SEMICONDUCTORS GMBH
Reel/Frame 025916/0144 →