Eastman-kodak Company

Global Oled Technology LLC

Lelia Cosimbescu

William B Vreeland

Scott R Conley

Jeri L Mount

Tukaram K Hatwar

David T Southby

Douglas Robert Robello

Keith B Kahen

Jared B Mooberry

Jeffrey P Spindler

Jianmin Shi

J Ramon Vargas

Denis Y Kondakov

Louis Elbert Friedrich

Michele L Ricks

Christopher T Brown

Viktor V Jarikov

William Bernard Vreeland

Scott Robert Conley

Jeri Lynn Mount

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 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.

A white light-emitting OLED device including spaced anode and cathode, and having blue light-emitting and yellow, orange, or red light-emitting layers, the blue light-emitting layer including a monoanthracene derivative of Formula (I) as a host material: wherein R-Rare H; Ris not the same as R; Ris a naphthyl group having no fused rings with aliphatic carbon ring members; and Ris a biphenyl group having no fused rings with aliphatic carbon ring members; provided that Rand Rare free of amines and sulfur compounds.

Anthracene derivative host having ranges of dopants

An electroluminescent device comprises a cathode, an anode, and therebetween a layer containing a host material and an ethynyl compound of Formula (1):A-C&#x2261;C-B&#x2003;&#x2003;(1)in an amount sufficient to stabilize the device wherein A and B represent independently selected fused carbocyclic ring groups.

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

Disclosed is a process for forming a N,N'-diarylquinacridone compound comprising the step of reacting a 1,4-dialkylcarboxylate-2,5-bis(N-arylamino) benzene with an iodoaryl compound to form the corresponding 2,5-bis(N-diarylamino) compound. The process is versatile and provides high yields and purity for the synthesis of N,N&#x2032;-diarylquinacridone compounds.

Synthesis for quinacridone compounds

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.

Organic vertical cavity lasing device having organic active region

Disclosed is a process for forming a N,N&prime;-diarylquinacridone compound comprising the step of reacting a N,N&prime;-unsubstituted quinacridone compound with a haloaryl compound in the presence of a metal or metal compound to arylate the N and N&prime; positions and form the corresponding N,N&prime;-diarylquinacridone compound. The process is versatile and provides high yields and purity for the synthesis of N,N&prime;-diarylquinacridone compounds.

Growing community of inventors

Rochester, NY, United States of America

Lelia Cosimbescu