Eastman-kodak Company

Global Oled Technology LLC

Scott R Conley

William B Vreeland

Denis Y Kondakov

Lelia Cosimbescu

Kevin P Klubek

J Ramon Vargas

Christopher T Brown

Jeri L Mount

Margaret Jones Helber

John W Harder

Robert F Romanet

Zbyslaw R Owczarczyk

Michael Phillip Youngblood

Benjamin P Hoag

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) comprising an anthracene compound on the cathode side of the LEL and an organic electron injection layer (EIL) between the ETL and the cathode comprising a phenanthroline compound, wherein the thickness of the EIL and LEL are such that the ratio of the thickness of the EIL to LEL is greater than 0.125.

Electroluminescent device including an anthracene derivative

An OLED device comprises an anode and a cathode and located there-between a light emitting layer containing a light emitting dopant and a host comprising a monoanthracene derivative.

Electroluminescent device with anthracene derivative host

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.

An electroluminescent device comprises a light emitting layer including an anthracene material bearing at least one aryl ring in the 2-position and having a hydrogen or an alkyl group in the 6-position and having up to 12 aromatic carbocyclic rings including at least one naphthalene group in the 9-position of the anthracene group and an aryl group in the 10-position, the anthracene material including among the rings only carbocyclic rings.

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.

Organic element for electroluminescent devices

Disclosed is an OLED device comprising an anode and a cathode and located there-between a light emitting layer containing a light emitting dopant and a host comprising a monoanthracene derivative of formula (I): 

OLED device with asymmetric host

An electroluminescent device comprises a cathode, an anode, and therebetween a layer containing a host material and a second material comprising a bis(aryloxy)azine borohalide complex. The invention also includes a display device and an area lighting device incorporating the electroluminescent device and a process for emitting light.

Disclosed is an organic light emitting diode device containing a light emitting layer (LEL) comprising a host and a blue light emitting dopant wherein the dopant comprises a 2-(3-aminophenyl)-benzofuran or 2-(4-aminophenyl)-benzofuran compound. The dopant provides improved luminance and luminance yield.

Dopant in an electroluminescent device

Disclosed is a multilayer electroluminescent device comprising an anode, a hole transport layer (HTL), a light emitting layer (LEL), an electron transport layer (ETL), and a cathode, in that order, wherein there is located between the HTL and the LEL an interlayer (IL) comprising a compound containing a 3-phenylindolyl group.

Organic electroluminescent devices with high luminance

Disclosed is an OLED device comprising a light-emitting layer containing a host and a dopant where the dopant comprises a boron compound complexed by two ring nitrogens of a deprotonated bis(azinyl)amine ligand.

Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a bicyclic azole dye-forming coupler compound having Formula I:

Growing community of inventors

Rochester, NY, United States of America

Scott R Conley