Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL) comprising a phosphorescent emitting compound disposed in a host comprising a mixture of at least one electron transporting co-host and at least one hole transporting co-host, wherein there is present an electron transporting layer contiguous to the LEL on the cathode side and wherein there is present an EIL layer containing a heteroaromatic compound contiguous to the cathode.

Abstract: Disclosed is an OLED device comprising an anode and a cathode and, located therebetween, a light emitting layer (LEL) containing a host and a stabilizer, wherein the stabilizer contains at least 5 fused rings and exhibits a first triplet energy level below 130 kJ/mol.

Abstract: An OLED device comprises a cathode, an anode, and located therebetween a light emitting layer, the device comprising a further layer between the light-emitting layer and the anode but not contiguous to the light-emitting layer, the further layer containing a 2,6-diamino-substituted anthracene compound and containing a larger volume percentage of the 2,6-diamino-substituted anthracene compound than the layer contiguous to the light-emitting layer on the anode side.

Abstract: An organic light-emitting device, comprising a substrate; an anode and a cathode; a first hole-transport layer provided over the anode and having at least a first material; a second hole-transport layer provided over the first hole-transport layer, and having at least a second material; at least one light-emitting layer disposed over the second hole-transport layer wherein the light-emitting layer(s) includes a host, a dopant, and a hole-trapping material; an improved electron-transport layer disposed between the light-emitting layer(s) and the cathode.

Abstract: An organic light-emitting device (OLED) includes an anode, a cathode, and a light-emitting layer disposed between the anode and the cathode, wherein the light-emitting layer includes a dominant host and a dopant. The device also includes an electron-transporting layer disposed in direct contact with the light-emitting layer on the cathode side, wherein the electron-transporting layer includes an electron-transporting material having the same chromophore as that of the dominant host in the light-emitting layer, wherein the electron-transporting material constitutes more than 50% by volume of the electron-transporting layer, and wherein the electron-transporting material has a greater reduction potential than that of the dominant host in the light-emitting layer.

Abstract: An organic light-emitting device includes a substrate, an anode and a cathode disposed over the substrate, and a light-emitting layer disposed between the anode and the cathode wherein the light-emitting layer includes a host and at least one dopant. The host of the light-emitting layer is selected to include a solid organic material including a mixture of at least two components wherein the first host component is an organic compound capable of transporting electrical charges and also forms an aggregate, and the second component of the mixture is an organic compound capable, of transporting electrical charges and, upon mixing with the first host component, is capable of forming a continuous and substantially pin-hole-free layer. The dopant of the light-emitting layer is selected to collect excitons and produce colored light, and an electron-transporting layer is disposed between the light-emitting layer and the cathode for providing improved electron injection and transport.

Abstract: An organic light-emitting device includes a substrate, an anode and a cathode disposed over the substrate, and a light-emitting layer disposed between the anode and the cathode wherein the light-emitting layer includes a host and at least one dopant. The host of the light-emitting layer is selected to include a solid organic material including a mixture of at least two components wherein the first host component is an organic compound capable of transporting electrical charges and also forms an aggregate, and the second component of the mixture is an organic compound capable of transporting electrical charges and, upon mixing with the first host component, is capable of forming a continuous and substantially pin-hole-free layer. The dopant of the light-emitting layer is selected to collect excitons and produce colored light, and an electron-transporting layer is disposed between the light-emitting layer and the cathode for providing improved electron injection and transport.

Abstract: An organic light-emitting device includes a light-emitting layer including a host, a dopant, and a hole-trapping material, wherein the hole-trapping material is provided at 0.01 to less than 5% by volume relative to the light-emitting layer volume, has an oxidation potential that is selected so that it is less than the oxidation potential of the host in order to serve as a hole trap, has an oxidation potential that is selected so as to avoid formation of a certain charge transfer complex between the hole-trapping material and the host if the charge transfer complex causes a reduction in the electroluminescent efficiency of the dopant, and has an oxidation potential that is selected so as to avoid formation of the charge transfer complex between the hole-trapping material and the dopant.

Abstract: An electroluminescent device comprises a light-emitting layer containing a host and a light-emitting material wherein the light-emitting material comprises a boron complex containing boron complexed by two ring nitrogens of a deprotonated bis(aromatic)amine or bis(aromatic)methene ligand wherein the boron complex contains a tertiary amine substituent group. The invention provides a material for a light-emitting layer of an EL device that exhibits improved luminance efficiency.

Abstract: 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.

Abstract: 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.

Abstract: 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.

Abstract: Disclosed is an OLED device comprising an anode and a cathode and, located therebetween, a light emitting layer (LEL) containing a host and a stabilizer, wherein the stabilizer contains at least 5 fused rings and exhibits a first triplet energy level below 130 kJ/mol.

Abstract: 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.