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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12185570 B1

PDFFull Text
Date of Patent:
Dec. 31, 2024

Filed:

Feb. 05, 2020

Electroluminescent display device

Applicant:

Microoled, Grenoble, FR;

Inventors:

Gunther Haas, St Egreve, FR;

Benoit Dugreni, rue Jean Macé, FR;

Michael Thomschke, St Egreve, FR;

Assignee:

MICROOLED, Grenoble, FR;

Attorneys:

Jordan IP Law, LLC

Todd A. Vaughn

Primary Examiner:

Patricia D Valenzuela

Int. Cl.
CPC ...
H10K 50/852 (2023.01); H10K 50/13 (2023.01); H10K 50/15 (2023.01); H10K 50/16 (2023.01); H10K 50/17 (2023.01); H10K 50/18 (2023.01); H10K 50/828 (2023.01); H10K 59/12 (2023.01); H10K 50/125 (2023.01); H10K 59/40 (2023.01); H10K 101/00 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
H10K 50/852 (2023.02); H10K 50/131 (2023.02); H10K 50/15 (2023.02); H10K 50/16 (2023.02); H10K 50/17 (2023.02); H10K 50/171 (2023.02); H10K 50/18 (2023.02); H10K 50/828 (2023.02); H10K 59/12 (2023.02); H10K 50/125 (2023.02); H10K 59/40 (2023.02); H10K 2101/27 (2023.02); H10K 2102/3026 (2023.02); H10K 2102/351 (2023.02);
Abstract

Matrix display device () having organic electroluminescent layers, successively comprising: a substrate, a first control electrode (), a first light-emitting assembly comprising at least a first organic electroluminescent layer (), a second light-emitting assembly comprising at least a second organic electroluminescent layer (), a second electrode () that has opposite polarity to said first electrode and that is at least partially transparent with respect to the light emitted by said electroluminescent layers; said control electrode () being structured to form a display matrix; said device being characterized in that the product of the mean refraction index of the organic layers and the distance between the surface opposite the substrate of said control electrode () and the surface at the substrate side of said second electrode () is between 125 nm and 205 nm.

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