Abstract: The present invention relates to organic light emitting devices (OLEDs) comprising an electroluminescent material layer comprising a mixture of at least two materials having different electron and hole transport capacities, and an electron transport layer comprising a triazine. Display devices comprising the OLEDs are also disclosed.

Abstract: A white organic light emitting device includes an anode; a cathode; and a light emitting region comprising one or more phosphorescent materials that emit red light, one or more phosphorescent materials that emit green light, and one or more fluorescent materials that emit blue light.

Abstract: A display device comprises an anode, a cathode, and a luminescent region disposed between the anode and the cathode, wherein the anode comprises a metal-organic mixed layer operatively combined with an electron-accepting material. An anode may comprise a mixture of a metal-organic mixed layer and an electron-accepting material within a single layer of the anode. Alternatively, the anode may have a multilayer configuration comprising a metal-organic mixed layer and a buffer layer adjacent the metal-organic mixed layer, wherein the buffer layer comprises an electron-accepting material and optionally a hole transport material.

Abstract: A display device comprising a light-absorbing layer comprising metal nanoparticles in a matrix material. Suitable matrix materials include organic materials, inorganic materials, polymeric materials, and combinations thereof. The metal nanoparticles may have various regular or irregular shapes and/or two-dimensional or three-dimensional structures. The metal nanoparticles may have a particle size of from about 2 to about 20 nm. In embodiments, the particle size distribution of the nanoparticles does not exceed +/?75%. The light-absorbing layer may have a multiple layer configuration comprising 2 or more individual light-absorbing layers. The light-absorbing layer(s) reduces the reflection of ambient light in a display device.

Abstract: A display device comprising a thin metal-organic mixed layer (MOML) comprising a metal (containing material) and an organic material, and having a thickness of less than 175 nm. A thin metal-organic mixed layer may be of a single or multi-layer configuration. The percent reflectance of a device may be controlled by varying the thickness of the MOML(s) and the metal component and concentration thereof in the MOML(s).

Abstract: The present invention relates to organic light emitting devices (OLEDs) containing an electron transport layer comprising a triazine. The triazine can be doped with at least one of organic and inorganic materials. A display device comprising the OLEDs is also disclosed.

Abstract: A stacked OLED includes a first electrode, a second electrode, a plurality of luminescent regions disposed between the first and second electrodes, and an intermediate electrode disposed between successive luminescent regions. At least one intermediate electrode comprise a metal-organic mixed layer disposed between a first charge injecting layer and a second charge injecting layer.

Abstract: An organic electroluminescent device includes an anode, a cathode, and a light emitting zone including a material that at least one of reduces triplet/triplet interaction, reduces triplet/singlet interaction, and reduces singlet/singlet interaction.

Abstract: Positive-charge injection-related ghosting of images in electrophotographic processes is addressed by electrophotographic photoreceptors that include a positive-charge injection preventing layer that includes one or more positive-charge-injection preventing compounds. In addition, processes are provided for preventing positive charge injection, in which the processes include a step of applying a positive-charge injection preventing composition to an electrophotographic photoreceptor in which the positive-charge injection preventing composition includes one or more positive-charge-injection preventing compound.

Abstract: An imaging member includes a substrate, a charge transport layer, a charge generator layer, and a charge transporting or photoconductive overcoating layer.

Abstract: An organic light emitting device composed of: a cathode; a layer including an organic electroluminescent material; a layer including an electron accepting material; an anode capping layer comprising an inorganic material; an anode; and a substrate in the sequence before the cathode or after the anode, wherein the anode capping layer is selected to provide the device with a luminance stability ratio that is greater than 1.

Abstract: Positive-charge injection-related ghosting of images in electrophotographic processes is addressed by electrophotographic photoreceptors that include a positive-charge injection preventing layer that includes one or more positive-charge-injection preventing compounds. In addition, processes are provided for preventing positive charge injection, in which the processes include a step of applying a positive-charge injection preventing composition to an electrophotographic photoreceptor in which the positive-charge injection preventing composition includes one or more positive-charge-injection preventing compound.

Abstract: An organic electroluminescent device includes an anode, a cathode, and a light emitting zone including a hole transport region and an electron transport region. The hole transport region include a hole impeding material located non-adjacent the anode.

Abstract: The present invention is an organic light emitting device (OLED) comprising an anode, a cathode and a luminescent region provided between the anode and the cathode. The luminescent region comprises an electron injection and transporting zone and at least one of a hole injection and transporting zone and a mixed charge transport layer. One or both of the electron injection and transporting zone and the mixed charge transporting layer comprises an azole compound represented by formula I and/or II. The provision of the novel azole compounds of the invention as electron transport materials within an organic electroluminescent device advantageously reduces power consumption and increases power conversion efficiency within the device and as such, are suitable for a variety of display applications.

Abstract: A display device composed of: (a) a cathode; (b) an anode; (c) a luminescent region between the cathode and the anode; and (d) an optional region adjacent to the cathode or the anode, wherein the device includes a plurality of metal-organic mixed layers disposed at one or more of the cathode, the anode, the luminescent region and the optional region, wherein each of the metal-organic mixed layers includes: (i) an inorganic metal containing material, and (ii) an organic material.

Abstract: A method for detecting charge defect spots (CDSs) on a chargeable surface is provided, including charging the chargeable surface to receive and hold a first voltage charge, spacing a surface of a scanner probe a distance from the chargeable surface, the scanner probe having a diameter, and biasing the scanner probe to a second voltage charge within a predetermined voltage threshold of the first voltage charge, wherein a parallel plate capacitor is established with the chargeable surface and a dielectric substance between the scanner probe and the chargeable surface.

Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.

Abstract: A device includes: an anode; a cathode; and a luminescent region between the cathode and the anode, wherein the luminescent region includes an anthracene derivative compound and a triazine derivative compound.

Abstract: A photoconductive member containing a supporting substrate; a photogenerating layer comprised of a photogenerating component, a hole transport component, an electron transport component, and a polymer binder; and a charge transport layer comprised of a charge transport component, an electron transport component and a polymer binder.

Abstract: By varying corona producing element height/projection, a more uniform charge potential is achieved. Elements, such as pins or teeth, are shorter at the edges of an element array and grow longer as one moves toward the center of the array. Such variation in height/projection overcomes shielding from adjacent teeth, as well as other effects, to yield the more uniform charging potential.