Universal Display Corporation

Samsung Electronics Co., Ltd.

Seiko Epson Corporation

Evident Technologies, Inc.

Kwang-Ohk Cheon

Chuanjun Xia

Walter H Yeager

Suman Layek

Bin Ma

Michael Inbasekaran

Lichang Zeng

Edward Barron

Alan Deangelis

Raymond Kwong

Jason Brooks

Vadim Adamovich

Michael Stuart Weaver

Zeinab M Elshenawy

Harvey Wendt

Siddharth Harikrishna Mohan

Ting-Chih Wang

Jennifer Gillies

David Socha

Michael Locasio

Shunichi Seki

Michael Stewart Weaver

Scott A Beers

Masahiro Uchida

Takuya Sonoyama

Alan DeAngelis

Michael Locascio

Masaki Ito

Angang Dong

San Ming Yang

David Duncan

Siddharth Harikrisha Mohan

A compound having the formula (L)Ir(L), where Lis and Lis selected from is disclosed. In the formula (L)Ir(L), Land Lare different; each of Xto Xis C&#x2014;Ror nitrogen; X is selected from O, S, and Se; each R, R, R, R, R, and Ris hydrogen or a substituent; Ris alkyl, cycloalkyl, or a combination thereof; and m is 1 or 2. OLEDs, consumer products, and formulations including the compound are also disclosed.

Organic electroluminescent materials and devices

The present invention relates to novel organic compounds containing oligocarbazoles. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).

The present disclosure relates to novel iridium complexes that can be used in organic light emitting devices (OLEDs). The present disclosure also relates to devices and formulations that incorporate the iridium complexes. The iridium complex can be a compound having the formula (L)Ir(L)(I);  

Metal complex for phosphorescent OLED

Novel oligocarbazole compounds containing a triphenylene and an oligocarbazole are provided. The compounds are useful in devices including organic light emitting devices (OLEDs).

The present invention relates to novel organic compounds containing a triphenylene and a carbazole. The compounds are useful for organic light-emitting diodes. The compounds are also useful for charge-transport and charge-blocking layers, and as hosts in the light-emissive layer for organic light emitting devices (OLEDs).

Organic light emitting diode materials

Organic electronic devices comprising a covalently bonded organic/inorganic composite layer. The composite layer may be formed by the reaction of a metal alkoxide with a charge transport compound having one or more hydroxyl groups. Examples of metal alkoxides that can be used include vanadium alkoxides, molybdenum alkoxides, titanium alkoxides, or silicon alkoxides. This composite layer can be used for any of the various charge conducting layers in an organic electronic device, including the hole injection layer.

Organic light-emitting devices

A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in a solvent in which the solvent compound has the following formula: wherein Ris Calkyl; Ris Calkyl; and Ris one or more optional substitutions independently selected from Calkyl and lower aryl.

Aryloxyalkylcarboxylate solvent compositions for inkjet printing of organic layers

Ionic compounds comprising: (a) a cationic radical of a charge transporting compound which has one or more reactive groups; and (b) a counter anion. The ionic compound may have the following formula:  The reactive functional groups on the cation allow the ionic compound to cross-link with a host charge transport compound. Such ionic compounds may have various properties, such as thermodynamic stability, hole injection/transport capabilities, electrochemical durability, and/or solubility in organic solvents that allows them to be useful in organic electronic devices. Also provided are electronic devices made using the ionic compounds of the present invention, and methods of making an electronic device.

Cross linkable ionic compounds

Novel compounds containing a triphenylene moiety linked to an &#x3b1;&#x3b2; connected binaphthyl ring system are provided. These compounds have surprisingly good solubility in organic solvents and are useful as host compounds in red phosphorescent OLEDs.

Host compounds for red phosphorescent OLEDs

A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic solvent. The aromatic solvent, when left as a residue in the organic layer, is capable of presenting relatively reduced resistivity to charge transport or facilitating charge transport in the organic layer that is deposited, as compared to other conventional solvents. In certain embodiments, the aromatic solvent compound has the following formula: wherein R represents one or more optional substituents on the benzene ring, wherein each R is independently an aliphatic group containing from 1-15 carbon atoms; and wherein X is a substitution group that contains an electron-withdrawing group selected from nitrile, sulfonyl, or trifluoromethyl.

Nitrile solvent composistions for inkjet printing of organic layers

Composite organic/inorganic layer for organic light-emitting devices

Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. Iridium complexes containing aza-benzo fused ligands in which an aryl group is conjugated to the aza ring of the specific aza-dibenzofuran ring system results in the formation of yellow phosphorescent compounds with superior device stability and efficiency. These complexes are useful as light emitters when incorporated into OLEDs.

Iridium complexes with aza-benzo fused ligands

Solid state lighting devices containing quantum dots dispersed in polymeric or silicone acrylates and deposited over a light source. Solid state lighting devices with different populations of quantum dots either dispersed in matrix materials or not are also provided. Also provided are solid state lighting devices with non-absorbing light scattering dielectric particles dispersed in a matrix material containing quantum dots and deposited over a light source. Methods of manufacturing solid state lighting devices containing quantum dots are also provided.

Solid state lighting devices comprising quantum dots

A light emitting diode (LED) formed by depositing an LED chip and coupling a stability layer to the LED chip. Semiconductor nanocrystals are placed in a first matrix material to form a nanocrystal complex layer. The nanocrystal complex layer is deposited on top of the stability layer. A thickness of the stability layer is chosen to maximizes a power of a light output by the nanocrystal complex layer. The matrix material and the stability layer can be of the same type of material. Additional layers of matrix material can be deposited on top of the nanocrystal complex layer. These additional layers can comprise matrix material only or can comprise matrix material and semiconductor nanocrystals to form another nanocrystal complex layer.

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Holland, PA, United States of America

Kwang-Ohk Cheon