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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 11807767 B1

PDFFull Text
Date of Patent:
Nov. 07, 2023

Filed:

Sep. 27, 2019

Ink composition for organic light emitting device

Applicant:

Lg Chem, Ltd., Seoul, KR;

Inventors:

Ji Young Jung, Daejeon, KR;

Mi Kyoung Kim, Daejeon, KR;

Assignee:

LG Chem, Ltd.;

Attorney:

Lerner David LLP

Primary Examiner:

William D Young

Int. Cl.
CPC ...
C09D 11/50 (2014.01); C09D 11/033 (2014.01); C09D 11/037 (2014.01); C09D 11/322 (2014.01); C09D 11/38 (2014.01); C09D 11/52 (2014.01); C09K 11/06 (2006.01); H10K 85/60 (2023.01); H10K 71/00 (2023.01); H10K 71/15 (2023.01); H10K 71/13 (2023.01); H10K 102/00 (2023.01);
U.S. Cl.
CPC ...
C09D 11/50 (2013.01); C09D 11/033 (2013.01); C09D 11/037 (2013.01); C09D 11/322 (2013.01); C09D 11/38 (2013.01); C09D 11/52 (2013.01); C09K 11/06 (2013.01); H10K 85/633 (2023.02); C09K 2211/1007 (2013.01); C09K 2211/1011 (2013.01); C09K 2211/1014 (2013.01); H10K 71/00 (2023.02); H10K 71/135 (2023.02); H10K 71/15 (2023.02); H10K 85/626 (2023.02); H10K 2102/361 (2023.02);
Abstract

The present invention relates to an ink composition for an organic light emitting device that can be applied to an inkjet process. The ink composition comprises a compound represented by the following Chemical Formula 1, a first solvent of aromatic esters having a boiling point of 260 to 400° C., and a second solvent of aliphatic ethers or aliphatic esters having a boiling point of 200 to 400° C., wherein the boiling point of the first solvent is higher than that of the second solvent. When this is applied to an inkjet process, it can form a flat film with a smooth surface when dried after forming the ink film. wherein L, Lto L, Ar, Ar, Rto R, Yto Y, and nto nare described herein.

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