Eastman-kodak Company

Global Oled Technology LLC

Other

J Ramon Vargas

Paul A Burns

Kevin P Klubek

Margaret Jones Helber

Liang-Sheng Liao

Denis Y Kondakov

John W Harder

Stephen A Hershey

Viktor V Jarikov

Phillip D Knight

Tukaram K Hatwar

Ching W Tang

Stephen P Singer

Keith B Kahen

Gary M Russo

Louis Elbert Friedrich

Scott R Conley

Lynda D Weber

William J Begley

Joseph C Deaton

Albert J Mura, Jr

Michele L Ricks

Hans G Ling

Arlyce T Bowne

David A Dickinson

Christopher T Brown

Shari L Eiff

Marina E Kondakova

Peter G Bessey

Dustin L Comfort

Lelia Cosimbescu

Margaret D Steele

Philip D Knight

An electroluminescent device including a cathode, an anode, and having therebetween a light-emitting layer including a boron complex represented by Formula (I), 

Organic element for electroluminescent devices

The invention provides an OLED device including an anode, a cathode and a green light-emitting layer located therebetween, said light-emitting layer including an anthracene host, a bis-diarylamine 9,10-substituted anthracene and a stabilizer compound which is selected from a quinacridone or a biphenylstyrylamine. Devices of the invention provide improvement in features such as stability and efficiency while maintaining excellent color.

OLED device with stabilized green light-emitting layer

An electroluminescent device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL), the device further containing an electron transport layer (ETL) on the cathode side of the LEL and an organic electron injection layer (EIL) contiguous to the ETL on the cathode side, wherein the ETL contains a monoanthracene compound bearing aromatic groups in the 2-, 9-, and 10-positions.

Electroluminescent device including an anthracene derivative

The invention includes a process for forming a laser pixel array useful with a pump-beam, comprising:

Selective light absorption shifting layer and process

Disclosed is an OLED device comprising a light-emitting layer containing a light emitting bis(azinyl)methene boron complex compound comprising a complex system of at least five fused rings and bearing, on at least one ring carbon or nitrogen, a substituent sufficient to provide a wavelength of maximum emission of less than 520 nm as measured at a concentration of &#x3c;10M in ethyl acetate solvent.

A stabilized white-light-emitting OLED device includes an anode, a cathode, a light-emitting layer disposed between the anode and the cathode, and a stabilizing substituted perylene material, so that the lifetime of the white-light-emitting OLED device is increased.

Stabilized white-light-emitting OLED device

An organic light emitting device includes a substrate, an anode and a cathode disposed over the substrate, and a luminescent layer disposed between the anode and the cathode wherein the luminescent layer includes a host and at least one dopant. The host of the luminescent layer is selected to include a solid organic material comprising a mixture of at least two components, one of which contains at least one perylene carbocyclic ring structure or at least one mono-aza-perylene or poly-aza-perylene ring structure and is capable of forming both monomer state and an aggregate state.

Aggregate organic light emitting diode devices with improved operational stability

A phosphorescent electroluminescent device comprising a light-emitting layer containing a host material and a phosphorescent light-emitting material wherein the host material comprises a boron compound containing at least one boron-nitrogen bond. Such devices provide useful light emissions.

Disclosed is an electroluminescent device comprising a light emitting layer comprising a boron complex wherein the boron is bonded to a nitrogen atom of a first 5-membered heteroaromatic ring group and to a nitrogen atom of a second 5-membered heteroaromatic ring group, provided that the 5-membered rings are further connected by a methene or an imine bridge to form a six-membered ring, and provided further that at least one of the 5-membered rings contains at least one additional heteroatom that is divalent or trivalent.

A tandem OLED includes an anode, a cathode, and at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-injecting layer, one hole-transporting layer, one organic light-emitting layer, one electron-transporting layer, and one electron-injecting layer. The OLED also includes at least one intermediate connector, wherein each of the intermediate connectors includes at least one layer, and wherein each of the intermediate connectors is disposed between electroluminescent units, wherein the thickness of each layer in each of the electroluminescent units and the intermediate connectors is selected to satisfy the test condition that the voltage drop from the anode to the cathode is less than 4.0 V&#xd7;N (the number of electroluminescent units) at 20 mA/cm.

Tandem OLEDs having low drive voltage

Disclosed is an electroluminescent device comprising a light emitting layer comprising a boron complex wherein the boron is bonded to a nitrogen atom of a 6-membered heteroaromatic ring group and to a nitrogen atom of a 5-membered heteroaromatic ring group, provided that the 5- and 6-membered heteroaromatic ring groups are further connected by an imine group, and provided that the 5-membered heteroaromatic ring group contains at least one additional heteroatom that is divalent or trivalent, and a process or device employing the device.

A cascaded organic electroluminescent device includes an anode, a cathode, and a plurality of organic electroluminescent units disposed between the anode and the cathode, wherein the organic electroluminescent units comprise at least a hole-transporting layer and an electron-transporting layer. The device also includes a connecting unit disposed between each adjacent organic electroluminescent unit, wherein the connecting unit comprises, in sequence, an n-type doped organic layer, and a p-type doped organic layer wherein the p-type doped organic layer includes a dihydrophenazine derivative compound.

Cascaded organic electroluminescent devices

A multilayer electroluminescent device comprising a cathode, an anode, a light emitting layer, and a layer disposed between the cathode and anode containing a dihydrophenazine compound is disclosed.

Organic electroluminescent devices with high luminance

Disclosed is an electroluminescent device comprising a light emitting layer comprising a boron complex wherein the boron is bonded to a nitrogen atom of a 6-membered heteroaromatic ring group and to a nitrogen atom of a 5-membered heteroaromatic ring group, provided that the 5- and 6-membered heteroaromatic ring groups are further connected by a methene bridge, and provided further that the 5-membered heteroaromatic ring contains at least one additional heteroatom that is divalent or trivalent. Also disclosed is a device containing the electroluminescent device and a process for emitting light using the device.

An organic vertical cavity laser light producing device includes a bottom dielectric stack reflective to light over a predetermined range of wavelengths; an organic active region for producing laser light, and having an organic active region including emissive material; and a top dielectric stack spaced from the bottom dielectric stack and reflective to light over a predetermined range of wavelengths. Pump-beam light is transmitted and introduced into the organic active region through at least one of the dielectric stacks. The organic active region includes one or more periodic gain region(s) and organic spacer layers disposed on either side of the periodic gain region(s) and arranged so that the periodic gain region(s) is aligned with the antinodes of the device's standing wave electromagnetic field, and wherein the spacer layers are substantially transparent to the laser light.

Growing community of inventors

Webster, NY, United States of America

J Ramon Vargas