US Patent 7300709 Organic element for electroluminescent devices

Patent 7300709 was granted and assigned to Eastman Kodak on November, 2007 by the United States Patent and Trademark Office.

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Patent Inventor Names

Christopher T. Brown0

Viktor V. Jarikov0

Zbyslaw R. Owczarczyk0

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Patent abstract

An electroluminescent device comprises a light-emitting layer containing a host and a light-emitting material wherein the light-emitting material comprises a boron complex containing boron complexed by two ring nitrogens of a deprotonated bis(aromatic)amine or bis(aromatic)methene ligand wherein the boron complex contains a tertiary amine substituent group. The invention provides a material for a light-emitting layer of an EL device that exhibits improved luminance efficiency.

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=073007090

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