Eastman-kodak Company

Global Oled Technology LLC

Michele L Ricks

Tukaram K Hatwar

Jeffrey P Spindler

Michael L Boroson

Dustin Lee Winters

Liang-Sheng Liao

Thomas W Palone

Margaret Jones Helber

Kevin P Klubek

William J Begley

Wojciech K Slusarek

Roger G Covington

Denis Y Kondakov

Joel D Shore

Bradley C DeCook

Peter G Bessey

Dustin L Comfort

Viktor V Jarikov

James Mazzarella

William B Vreeland

Kevin M Donovan

Ralph H Young

J Ramon Vargas

Tommie L Royster, Jr

Zbyslaw R Owczarczyk

Marina E Kondakova

Lelia Cosimbescu

Nancy J Armstrong

William F Nichols

Robert S Cupello

Thomas L Matochik

An OLED device comprises a cathode, an anode, and has therebetween a light-emitting layer wherein the light-emitting layer comprises (a) a 2-arylanthracene compound and (b) a light-emitting second anthracene compound having amino substitution at a minimum of two positions, wherein at least one amine is substituted at the 2 position of the second anthracene compound.

OLEDs having high efficiency and excellent lifetime

A method for selecting two different light-emitting materials for use in an OLED device, each of which produces different color light, which combine to produce white light. Each light emitting material has its own point on a chromaticity diagram, and the light-emitting materials are selected such that, when a line is drawn between the first point and the second point, it passes through a desired white area defined on a chromaticity diagram.

Selecting white point for OLED 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 OLED display, comprising: a substrate; an OLED having two spaced-apart electrodes and organic layers disposed therebetween and the OLED being disposed over the substrate; first desiccant material disposed over at least a portion of one of the electrodes; a compliant protection layer having a Young's Modulus &#x3c;4 GPa disposed over at least a portion of the first desiccant material; and an encapsulation container fixed to the substrate and disposed over the compliant protection layer.

Moisture protection for OLED display

A flat panel OLED device including a transparent deformable substrate having first and second sides and defining a predetermined illumination region and a non-illumination region; a moisture-sensitive OLED disposed over the first side of the transparent substrate within the illumination region and means for applying electrical signals to the OLED which causes the OLED to produce light and heat; a protective layer disposed over the OLED; a flexible encapsulating foil disposed over the protective layer, but not attached thereto; and a rigid chassis structure operatively associated with the transparent deformable substrate for dissipating the heat and providing rigidity to the transparent deformable substrate.

Flat panel OLED device having deformable substrate

A flat panel OLED device including a transparent deformable substrate having first and second sides and defining a predetermined illumination region and a non-illumination region; a moisture-sensitive OLED disposed over the first side of the transparent substrate within the illumination region and means for applying electrical signals to the OLED which causes the OLED to produce light and heat; a protective layer disposed over the OLED; a flexible encapsulating foil disposed over the protective layer, but not attached thereto, and which dissipates the heat and sealingly connected to the substrate in the non-illumination region; and a rigid chassis structure operatively associated with the transparent deformable substrate for providing rigidity to the transparent deformable substrate.

An OLED display, comprising: a substrate; an OLED having two spaced-apart electrodes and organic layers disposed there between, and the OLED disposed over the substrate; an encapsulation container fixed by perimeter seal to the substrate and disposed over the OLED to provide an enclosure; and the substrate or the encapsulation container, or both, including compliant regions that flex, compress, or expand under stress and reduce stress transfer between the substrate and the encapsulation container through the perimeter seal.

Preventing stress transfer in OLED display components

An OLED includes an anode, a light-emitting layer disposed over the anode, and a first electron-injecting layer disposed over the light-emitting layer, wherein the first electron-injecting layer includes at least one organic host material having a reduction potential less than &#x2212;1.0 V vs. a Saturated Calomel Electrode and at least one dopant material capable of reducing the organic host material. The OLED also includes a second electron-injecting layer disposed in contact with the first electron-injecting layer, wherein the second electron-injecting layer includes at least one organic material having a reduction potential greater than &#x2212;1.0 V vs. a Saturated Calomel Electrode, and a cathode disposed over the second electron-injecting layer.

OLED electron-injecting layer

An OLED device comprises an anode, a light emitting layer, a first layer, a second layer contiguous to the first layer, and a cathode, in that order. The first layer includes a first complex comprising gallium and the second layer includes a second complex also comprising gallium and wherein the second complex has a more negative LUMO than the first complex. Such materials can provide an improvement in one or more of luminance, drive voltage, and stability.

Electroluminescent device including gallium complexes

An organic electroluminescent device comprises a cathode, an anode, and has therebetween a light-emitting layer comprising an emissive component represented by formula (I): wherein:

Organic element for electroluminescent devices

A tandem OLED includes an anode and a cathode. The OLED also includes at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-transporting layer and one organic light-emitting layer. An intermediate connector is disposed between adjacent electroluminescent units, wherein the intermediate connector includes an n-doped organic layer and an electron-accepting layer, the electron-accepting layer being disposed closer to the cathode than the n-doped organic layer, and wherein the electron-accepting layer includes one or more organic materials, each having a reduction potential greater than &#x2212;0.5 V vs. a Saturated Calomel Electrode, and wherein the one or more organic materials constitute more than 50% by volume of the electron-accepting layer.

Tandem OLED having an organic intermediate connector

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

A color OLED display having at least three different colored microcavity pixels including a light-reflective structure and a semitransparent structure comprising an array of light-emitting microcavity pixels each having one or more common organic light-emitting layers, said light-emitting layer(s) having first, second, and third light-emitting materials that produce different light spectra. The first light-emitting material producing light has a first spectrum portion that is substantially contained within a first color of the array, the second light-emitting material producing light has a second spectrum portion that is substantially contained within a second color that is different from the first color, and the third light-emitting material producing light has a third spectrum portion that is substantially contained within a third color that is different from the first and second colors.

Growing community of inventors

Rochester, NY, United States of America

Michele L Ricks