Patent application number | Description | Published |
20080197768 | Light Emissive Device - An organic light emissive device, which comprises: an anode; a cathode; and an organic light emissive region between the anode and the cathode, which region comprises: a layer of blue light electroluminescent organic material which emits light having first CIE co-ordinates by exciton radiative decay; and a layer of longer wavelength electroluminescent organic material which intrinsically emits light having second CIE co-ordinates by exciton radiative decay; wherein the layers of blue light and longer wavelength materials are selected so that the organic light emissive region emits white light falling within a region having a CIE X coordinate equivalent to that emitted by a black body at 3000-9000K and CIE γ co-ordinate of said light emitted by a black body. | 08-21-2008 |
20090174311 | Optical device comprising a charge transport layer of insoluble organic material and method for the production thereof - A method of forming an organic light emitting diode comprising the steps of: providing a substrate comprising a first electrode for injection of charge carriers of a first type; forming a charge transporting layer by depositing over the substrate a charge transporting material for transporting charge carriers of the first type, the charge transporting material being soluble in a solvent; treating the charge transporting layer to render it insoluble in the solvent; forming an electroluminescent layer by depositing onto the charge transporting layer a composition comprising the solvent, a phosphorescent material, and a host material; and depositing over the electroluminescent layer a second electrode for injection of charge carriers of a second type. | 07-09-2009 |
20090203876 | Pulsed Driven Displays - A pulsed driven display comprising an organic light-emitting device, said device comprising an organic layer comprising a semiconductive polymer, said polymer comprising a fluorene or triarylamine repeat unit, the fluorene or triarylamine repeat unit having a group R pendent from the polymer backbone, wherein R has general formula I:
| 08-13-2009 |
20090215223 | ELECTROLUMINESCENT DEVICE - An optical device comprising an anode, a cathode comprising barium, strontium or calcium, and a layer of organic semiconducting material between the anode and the cathode wherein a layer of hole transporting and electron blocking material is located between the anode and the layer of organic semiconducting material. | 08-27-2009 |
20090322213 | Opto-Electrical Polymers and Devices - A polymer for use in an opto-electrical device comprising aromatically conjugated repeat units of optionally substituted 9,9-dimethylfluorene. | 12-31-2009 |
20100133566 | Opto-Electrical Devices and Methods of Making the Same - An opto-electrical device comprising: a first electrode for injecting charge carriers of a first polarity; a second electrode for injecting charge carriers of a second polarity; and a layer of organic material disposed between the first and second electrodes, the layer of organic material comprising a blend of a first charge transporting and/or light-emissive polymer and a second charge transporting and/or light-emissive polymer, wherein at least the first polymer is cross-linked providing a first cross-linked matrix in which the second polymer is disposed. | 06-03-2010 |
20100320454 | White Light Emitting Material - A white light emitting material comprising a polymer having an emitting polymer chain and at least one emitting end capping group. | 12-23-2010 |
20110168987 | Organic Electronic Device - An organic electronic device comprising: an anode; a hole injecting layer; a cathode; and organic semiconductive material disposed between the hole injecting layer and the cathode, wherein the cathode comprises an electron-injecting material having a higher electron-injection efficiency than BaO/Al, and wherein the hole injecting layer comprises a hole injecting material which has a lower workfunction than PEDOT:PSS (1:6). | 07-14-2011 |
20120085994 | Organic Light-Emitting Materials and Devices - An electroluminescent polymer comprising light-emissive repeat units and a non-emissive polycyclic aromatic hydrocarbon unit with greater than 12 aromatic sp2 hybridized carbon atoms, wherein the non-emissive polycyclic aromatic hydrocarbon unit comprises a structural unit having formula I: | 04-12-2012 |
20130001594 | Electronic Device - A method of making an electronic device comprising a double bank well-defining structure, which method comprises: providing an electronic substrate; depositing a first insulating material on the substrate to form a first insulating layer; depositing a second insulating material on the first insulating layer to form a second insulating layer; removing a portion of the second insulating layer to expose a portion of the first insulating layer and form a second well-defining bank; depositing a resist on the second insulating layer and on a portion of the exposed first insulating layer; removing the portion of the first insulating layer not covered by the resist, to expose a portion of the electronic substrate and form a first well-defining bank within the second well-defining bank; and removing the resist. The method can provide devices with reduced leakage currents. | 01-03-2013 |
20130237680 | WHITE LIGHT EMITTING MATERIAL - A white light emitting material comprising a polymer having an emitting polymer chain and at least one emitting end capping group. | 09-12-2013 |