Novel OLED Compound With Rigid Fluorene Substituent - US20260114181A1
Summary
USPTO published patent application US20260114181A1 on April 23, 2026, covering a novel organic light-emitting compound where a rigid fluorene-based substituent is introduced into 1,10-phenanthroline. The application (No. 19359671) was filed on October 15, 2025, by inventors A Reum Lee, So Jeong Moon, Joo Hee Jang, Jae Duk Yoo, Young Jae Kwon, Da Young Park, and A Reum Hyun. The compound is designed for use in electron transport layers, hole blocking layers, and N-type charge generation layers of OLEDs to achieve low voltage operation, high efficiency, and extended device lifespan.
“When the compound is applied to one or more organic layers of an electron transport layer (ETL), a hole blocking layer (HBL), and an N-type charge generation layer (N-CGL), the compound enables the implementation of low voltage, high efficiency, and long life of an organic light-emitting device.”
About this source
USPTO classification C07D covers heterocyclic organic compounds: the chemical core of most small-molecule drugs, including kinase inhibitors, GLP-1 receptor agonists, antibiotics, antivirals, and CNS therapies. Every newly published application in C07D lands in this feed, around 160 a month. Applications publish 18 months after filing, so this feed reveals what medicinal chemistry groups at Pfizer, Novartis, Roche, Shionogi, and others were synthesizing in the prior year and a half. Watch this if you run a medicinal chemistry program, file patent clearance for new drug candidates, scout competitor pipelines before clinical readouts, or track heterocyclic innovation across therapeutic areas.
What changed
USPTO published patent application US20260114181A1 for a novel OLED compound featuring a rigid fluorene-based substituent introduced into 1,10-phenanthroline. The compound is classified under CPC codes H10K 85/6572, C07D 471/04, and related electronic device categories. The application was filed October 15, 2025, under application number 19359671, and published April 23, 2026.
For manufacturers and technology companies developing organic light-emitting devices, this patent application signals potential future intellectual property considerations for OLED layer technologies. Companies engaged in display manufacturing, electronic device fabrication, or lighting applications may wish to monitor this application's prosecution for potential licensing implications or freedom-to-operate analysis.
Archived snapshot
Apr 23, 2026GovPing captured this document from the original source. If the source has since changed or been removed, this is the text as it existed at that time.
Novel compound and organic light-emitting device comprising the same
Application US20260114181A1 Kind: A1 Apr 23, 2026
Inventors
A Reum LEE, So Jeong MOON, Joo Hee JANG, Jae Duk YOO, Young Jae KWON, Da Young PARK, A Reum HYUN
Abstract
The present invention provides a novel compound and an organic light-emitting device comprising the same, in which a rigid fluorene-based substituent is introduced into 1,10-phenanthroline having a non-shared electron pair. When the compound is applied to one or more organic layers of an electron transport layer (ETL), a hole blocking layer (HBL), and an N-type charge generation layer (N-CGL), the compound enables the implementation of low voltage, high efficiency, and long life of an organic light-emitting device.
CPC Classifications
H10K 85/6572 C07B 59/002 C07D 471/04 H10K 85/615 H10K 85/622 H10K 85/626 H10K 85/654 H10K 50/16 H10K 50/18 H10K 50/19
Filing Date
2025-10-15
Application No.
19359671
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