| Cambridge Display Technology Limited Patent applications |
| Patent application number | Title | Published |
|---|
| 20120126688 | ELECTROLUMINESCENT DEVICE - An organic electroluminescent device comprising: a substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light emitting layer disposed between the first and the second electrode; and an encapsulant disposed over the second electrode, wherein the second electrode and the encapsulant are transparent to light emitted by the light emitting layer, wherein a cavity is provided between the encapsulant and the second electrode, and wherein an anti-reflective coating is provided on at least one side of the encapsulant for reducing reflection of light emitted by the light emitting layer so as to improve out-coupling of light from the device, said anti-reflective coating being transparent to light emitted by the light emitting layer. | 05-24-2012 |
| 20120095184 | Monomer, Polymer, and Method of Making it - A monomer having the general formula: | 04-19-2012 |
| 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 |
| 20120068140 | SWITCHABLE ELECTRONIC DEVICE AND METHOD OF SWITCHING SAID DEVICE - A switchable electronic device comprises a hole blocking layer and a layer comprising a conductive material between first and second electrodes, wherein the conductivity of the device may be irreversibly switched upon application of a current having a current density of less than or equal to 100 A cm | 03-22-2012 |
| 20120065338 | PHOSPHORESCENT OLED - An organic light emitting device having a phase-separated light-emissive layer comprising:
| 03-15-2012 |
| 20120046440 | Polymer and Polymerization Method - A method for forming a polymer comprising the polymerization of a plurality of monomers, wherein at least one of the plurality of monomers is one or both of: a charge transporting unit and a hydrocarbon monomer in which at least one carbon atom has been substituted by an atom or group with a greater quantity of unshared valence electrons than the carbon atom it has been substituted for, and wherein at least one of the plurality of monomers comprises an end-capping compound at one end of said monomer, the end-capping compound preventing polymerization at the end, wherein the end-capping compound is not charge transporting and comprises at least two rings. The end capping compound preferably consists of or includes a structural unit having the formula: (Ar) | 02-23-2012 |
| 20120037915 | Method of Making an Organic Thin Film Transistor - A method of forming an organic thin film transistor the method comprising:
| 02-16-2012 |
| 20120037907 | Method of Forming Source and Drain Electrodes of Organic Thin Film Transistors by Electroless Plating - A method of manufacturing an organic thin film transistor, the method comprising: depositing a source and drain electrode over a substrate using a solution processing technique; forming a workfunction modifying layer over the source and drain electrodes using a solution processing technique; and depositing an organic semi-conductive material in a channel region between the source and drain electrode using a solution processing technique. | 02-16-2012 |
| 20120007068 | Light Emissive Device - An organic light emissive device comprising: a first electrode; a second electrode; and an organic light emissive region between the first and second electrodes comprising an organic light emissive material which has a peak emission wavelength, wherein at least one of the electrodes is transparent and comprises a composite of a charge injecting metal and another material which is codepositable with the charge injecting metal, the other material having a different refractive index to that of the charge injecting metal and wherein the other material has a lower degree of quenching at the peak emission wavelength than the charge injecting metal whereby quenching of excitons by the at least one electrode is reduced, the charge injecting metal comprising either a low work function metal having a work function of no more than 3.5 eV or a high work function metal having a work function of no less than 4.5 eV. | 01-12-2012 |
| 20110306157 | Opto-electrical Devices and Methods of Manufacturing the Same - A composition for ink jet printing an opto-electrical device, comprising a charge injecting and/or transporting organic material and a solvent mixture, wherein the solvent mixture is present in an amount of about 30% v/v based on the volume of the composition and comprises a first co-solvent and a second co-solvent miscible with the first co-solvent; wherein the first co-solvent comprises ethylene glycol; and the second co-solvent comprises glycerol, wherein the ratio by volume of the first co-solvent to second co-solvent is approximately 1:2. The composition provides slower drying PEDOT ink formulations having improved film uniformity within pixels and across swathe joins which do not compromise other aspects of the ink's performance. | 12-15-2011 |
| 20110291992 | Optical Sensor Array - An optical sensor array comprises a photo-sensitive area formed by an array of chiplets having individual light-sensitive elements, each element configured to produce a signal or signals in response to incident light. The displacement of a chiplet from a predetermined position is derivable from the output signal or signals of the element or elements associated with the chiplet. The arrangement provides a method of measuring the displacement of at least one chiplet in an active display. | 12-01-2011 |
| 20110291572 | Display Drivers - An active matrix display comprises a display area of the matrix comprising drive circuitry including a control circuit comprising chiplets outside the display area. The output of the control circuit is distributed among the plurality of chiplets. This arrangement is advantageous in that the chiplets allow for a much smaller fan-in and fan-out structure, thus allowing a much larger percentage of the substrate to be devoted to display area. | 12-01-2011 |
| 20110291084 | Display Device and Backplane - A display device comprises a plurality of electroluminescent display pixels and a plurality of semiconductor elements (“chiplets”), each pixel being electrically connected to the output of one or more of said semiconductor elements through a via hole in an electrically insulating layer for addressing the plurality of display pixels, and a plurality of colour filters and/or downconverters. The colour filters and/or downconverters and the semiconductor elements are provided on the same surface of the device. | 12-01-2011 |
| 20110269255 | Compositions and Methods for Manufacturing Light-emissive Devices - A composition adapted for use in the manufacture of an organic light-emissive device by passing the composition through one or more openings under pressure to deposit the composition, the composition comprising: a semi-conductive organic host material; a luminescent metal complex; and a first solvent, wherein the first solvent has a structure: | 11-03-2011 |
| 20110241051 | Organic Electroluminescent Device - An organic electroluminescent device comprising: a substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light emitting layer disposed between the first and the second electrode, the second electrode being transparent to light emitted by the light emitting layer; and a transparent encapsulant disposed over the second electrode, wherein the transparent encapsulant comprises a microlens array formed by a top surface of the transparent encapsulant and a diffraction grating formed by a bottom surface of the transparent encapsulant. | 10-06-2011 |
| 20110240966 | Organic Electroluminescent Device - An organic electroluminescent device comprising: a substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light emitting layer disposed between the first and the second electrode; an encapsulant can disposed over, and spaced apart from, the second electrode, defining a cavity therebetween; wherein a plurality of spacers are disposed between the encapsulant can and the second electrode forming multiple sealed cavities between the second electrode and the encapsulant can. | 10-06-2011 |
| 20110233535 | Organic Semiconductors - A soluble oligomeric compound for forming an organic thin film transistor, has repeat units comprising two or more fused thiophene residues. The repeat units comprise the structure: | 09-29-2011 |
| 20110198661 | Method for Ink Jet Printing Organic Electronic Devices - A method of fabricating an organic electronic device using ink jet printing in swathes, comprises depositing an ink into a first set of locations in a column in a first print pass; wherein the first set of locations is less than a total number of locations in the column; and depositing an ink into a second set of locations in the column in a subsequent print pass; wherein the second set of locations is less than a total number of locations in the column. Preferably the number of nozzles used to fill all locations in a column is equal to the number of print passes needed to print the column. All locations in the swathe are printed after all print passes using a regular repeating randomized pattern, such that be ensured that print locations are not under filled, or over filled. | 08-18-2011 |
| 20110195176 | Method of Manufacturing a Display - A method for the manufacture of an organic light-emissive display comprises: providing a substrate comprising a first electrode layer and a bank structure defining a plurality of wells; depositing a conductive organic layer over the first electrode; depositing an organic light-emissive layer over the conductive organic layer; and depositing a second electrode over the organic light-emissive layer, wherein the conductive organic layer is deposited by ink jet printing a composition comprising poly(ethylene dioxythiophene) (PEDOT) doped with a polyanion, wherein the polyanion has a molecular weight of equal to or less than 30 kDa measured relative to polystyrene molecular weight standards using gel-permeation chromatography, the viscosity of the composition being equal to or less than 10 mPa·s, and the solids content of the composition being equal to or less than 5 wt % based on the volume of the composition. The composition may include an optional solvent or other additive. | 08-11-2011 |
| 20110187266 | POLYMER COMPOUND AND LIGHT EMITTING DEVICE USING THE SAME - A polymer compound that, when used for fabrication of a light emitting device, results in an excellent luminance lifetime for the obtained light emitting device. A polymer compound comprising a constitutional unit represented by formula (1). | 08-04-2011 |
| 20110186832 | Opto-electrical Devices and Methods of Manufacturing the Same - An improved composition for ink jet printing an opto-electrical device, which composition comprises a solution-processable host material and a metal complex, wherein the viscosity of the composition exceeds 12 mPa·s at 20° C. | 08-04-2011 |
| 20110186830 | Method of Making Organic Thin Film Transistors Using a Laser Induced Thermal Transfer Printing Process - The present invention provides a method of manufacturing an organic thin film transistor (TFT), comprising: providing a substrate layer; providing a gate electrode layer; providing a dielectric material layer; providing an organic semiconductor (OSC) material layer; providing a source and drain electrode layer; and wherein one or more of the layers is deposited using a laser induced thermal imaging (LITI) process. Preferably the organic TFT is a bottom gate device and the source and drain electrodes are deposited on an organic semiconductor layer, or over a dielectric material layer using LITI. Further preferably a dopant material may be provided between the OSC material and the source and drain electrode layer, wherein the dopant material may also be deposited using LITI. Also preferably, wherein the dopant may be a charge neutral dopant such as substituted TCNQ or F4TCNQ. | 08-04-2011 |
| 20110186829 | Surface Treated Substrates for Top Gate Organic Thin Film Transistors - A method of forming a top gate transistor comprising the steps of providing a substrate carrying source and drain electrodes defining a channel region therebetween; treating at least part of the surface of the channel region to reduce its polarity; and depositing a semiconductor layer in the channel. | 08-04-2011 |
| 20110186828 | Blue light-Emitting Material - A light-emitting material comprising a conjugated polymer and a blue-light emitting perylene. | 08-04-2011 |
| 20110186827 | Organic Light-emitting Materials and Devices - A light-emissive polymer comprising the following unit: | 08-04-2011 |
| 20110186826 | Electroluminescent Materials and Optical Device - An electroluminescent material comprises the following structural unit: | 08-04-2011 |
| 20110181630 | Active Matrix Displays - This invention relates to active matrix OLED (Organic Light Emitting Diode) displays, in particular to display panels with integrated negative capacitance circuits and to active capacitance compensation. We describe an active matrix OLED display comprising a glass panel bearing a plurality of lines of OLED pixels, each with an associated active matrix driver circuit having a programming connection for programming a brightness of the associated OLED, programming connections of a line of pixels being connected to a programming line of said display, and wherein said active matrix OLED display further comprises a plurality of capacitors on said glass panel, each having a first plate connected to an end of a respective said programming line and having a second plate for connecting to a negative capacitor circuit to compensate for a capacitance of said programming line. | 07-28-2011 |
| 20110180758 | Light-emitting Material and Device - A light-emitting polymer has less than or equal to 5 mol % of a light-emitting optionally substituted structural unit having general formula 1: | 07-28-2011 |
| 20110127504 | Organic Thin Film Transistors - An organic thin film transistor comprising: a substrate; a source electrode and a drain electrode disposed over the substrate with a channel region therebetween; a layer of organic semiconductor disposed in the channel region; a gate electrode; and a gate dielectric disposed between the layer of organic semiconductor and the gate electrode, wherein the gate dielectric comprises a cross-linked polymer and a fluorine containing polymer. | 06-02-2011 |
| 20110101323 | ORGANIC THIN FILM TRANSISTORS - A method of forming an organic thin film transistor comprising source and drain electrodes with a channel region therebetween, a gate electrode, a dielectric layer disposed between the source and drain electrodes and the gate electrode, and an organic semiconductor disposed in at least the channel region between the source and drain electrodes, said method comprising: seeding a surface in the channel region with crystallization sites prior to deposition of the organic semiconductor; and depositing the organic semiconductor onto the seeded surface whereby the organic semiconductor crystallizes at the crystallization sites forming crystalline domains in the channel region. | 05-05-2011 |
| 20110101320 | ORGANIC THIN FILM TRANSISTOR - An organic thin film transistor comprising source and drain electrodes, an organic semiconductor disposed in a channel region between the source and drain electrodes, a gate electrode, and a dielectric disposed between the source and drain electrodes and the gate electrode, wherein the source electrode and the drain electrode comprise at least one different physical and/or material property from each other. | 05-05-2011 |
| 20110101317 | Electronic Devices and Methods of Making Them Using Solution Processing Techniques - A method of manufacturing an electronic device comprises: providing a base comprising circuit elements; forming a double bank well-defining structure over the base, comprising a first layer of insulating material and a second layer of insulating material thereover; and depositing a solution of organic material in the well defined by the double bank structure. The double bank well-defining structure is formed by removing material from the first and second layers in a single processing step to form the well. The first layer is made of a material which is removed at a faster rate than material of the second layer to form an overhanging step structure in which the second layer protrudes out over an edge of the first layer. | 05-05-2011 |
| 20110069732 | ENHANCED EMISSION OF LIGHT FROM ORGANIC LIGHT EMITTING DIODES - A device comprising an organic light emitting diode coupled to a cavity, said cavity containing an emitting species, said device being arranged such that light emitted from said organic light emitting diode is at least partially absorbed by the emitting species and re-emitted from the emitting species. The device may be arranged such that the emitting species acts as the gain media of a laser, and the organic light emitting diode may be arranged to pump the emitting species. | 03-24-2011 |
| 20110057229 | Organic Light Emissive Device - A method of manufacturing an organic light emissive device comprising: depositing an organic light emissive layer over an anode and depositing a cathode over the organic light emissive layer, wherein the cathode comprises a trilayer structure formed by: depositing a first layer comprising an electron injecting material; depositing a second layer over the first layer, the second layer comprising a metallic material having a workfunction greater than 3.5 eV; and depositing a third layer over the second layer, the third layer comprising a metallic material having a workfunction greater than 3.5 eV. | 03-10-2011 |
| 20110053314 | Method of Fabricating Top Gate Organic Semiconductor Transistors - The present invention provides a method of fabricating a top-gate organic semiconductor transistor comprising: providing a substrate; depositing a source and drain electrode over the substrate; depositing an organic semiconductor material in a channel between the source and drain electrode and over at least a portion of the source and drain electrodes; depositing a dielectric material over the organic semiconductor material; depositing a gate electrode over the dielectric material and organic semiconductor material in the channel; removing a portion of the dielectric material and organic semiconductor material, wherein the gate electrode acts as a mask to shield the underlying organic semiconductor material and dielectric material during the step of removing. | 03-03-2011 |
| 20110042696 | Organic Electroluminescent Device - An organic electroluminescent device cfomprising: a transparent substrate; a first electrode disposed over the substrate for injecting charge of a first polarity; a second electrode disposed over the first electrode for injecting charge of a second polarity opposite to said first polarity; an organic light-emitting layer disposed between the first and the second electrode, wherein the second electrode is reflective, the first electrode is transparent or semi-transparent, and one or more intermediate layers of dielectric material with a refractive index greater than 1.8 or a metal material is disposed between the substrate and the first electrode forming a semi-transparent mirror whereby a microcavity is provided between the reflective second electrode and the semi-transparent mirror, all the intermediate layers disposed between the substrate and the first electrode having a surface nearest the organic light-emitting layer not more than 150 nm from a surface of the first electrode nearest the organic light-emitting layer. | 02-24-2011 |
| 20110042656 | Electronic Devices and Methods of Making the Same Using Solution Processing Techniques - An electronic device comprising: an electronic substrate comprising circuit elements; a double bank well-defining structure disposed over the electronic substrate, the double bank well-defining structure comprising a first layer of insulating material and a second layer of insulating material thereover, the second layer of insulating material having a lower wettability than the first layer of insulating material; and organic semiconductive material disposed in wells defined by the double bank well-defining structure. | 02-24-2011 |
| 20110008590 | Solvent for a Printing Composition - A composition suitable for fabricating an electronic device such as an OLED using an ink-jet printing technique comprises a conducting or semi-conducting organic material and a solvent, the solvent having a boiling point of greater than 250° C. and a viscosity of less than 5 cPs. The composition preferably has a viscosity in the range between 0.1 and 20 cPs, and the solvent preferably has the formula: | 01-13-2011 |
| 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 |
| 20100314614 | Organic Thin Film Transistors, Active Matrix Organic Optical Devices and Methods of Making the Same - A method of manufacturing an organic thin film transistor, comprising: providing a substrate comprising source and drain electrodes defining a channel region; subjecting at least the channel region to a cleaning treatment step; and depositing organic semiconductive material from solution into the channel region by inkjet printing. | 12-16-2010 |
| 20100289779 | CURRENT DRIVE DISPLAY SYSTEM - This invention relates to systems, methods and apparatus for driving organic light emitting diodes (OLED) displays, in particular those using multi-line addressing (MLA) techniques. Embodiments of the invention are particularly suitable for use with so-called passive matrix OLED displays. A current drive system for an electroluminescent display, the system comprising: a plurality of current mirrors having a plurality of outputs for driving a plurality of drive electrodes of said display, each said current mirror having a reference signal input; and an automatic selector coupled to said current mirror outputs to automatically select a said output for providing reference signal inputs to said current mirrors. | 11-18-2010 |
| 20100276674 | Light-emitting Device and Materials Therefor - An organic light-emitting device comprising an anode; a hole transport layer; a light-emitting layer; and a cathode, characterised in that the hole transport layer comprises a polymer having a repeat unit comprising a 9,9 biphenyl fluorene unit wherein the 9-phenyl rings are independently and optionally substituted and the fluorene unit is optionally fused. | 11-04-2010 |
| 20100259528 | Dynamic Adaptation of the Power Supply Voltage for Current-Driven EL Displays - A display driver control circuitry and method for controlling a display driver for an electroluminescent display, the display comprising at least one substantially constant current generator for driving the display element, the control circuitry comprising: a drive voltage sensor for sensing a drive voltage on a first line in which the current is regulated by the constant current generator; a reference voltage generator for providing a reference voltage offset from a supply voltage provided from a supply line to the constant current generator; means for determining a difference between the reference voltage and the drive voltage and for generating an adjustment signal, and wherein a voltage controller is configured to adjust the supply voltage responsive to the adjustment signal. | 10-14-2010 |
| 20100245401 | Method of Driving an Electro-Optic Display - A method of driving an electro-optic display comprising providing a current source, digitally modulating the current source and generating a modulated digital signal, and converting the modulated digital signal into an effective analog drive signal so that the display pixels receive an effective analog drive current, wherein the internal capacitance of the electro-optic display smooths the digitally modulated signal and generates the effective analog drive signal. | 09-30-2010 |
| 20100220041 | Optoelectronic Device - A passive matrix display comprising an array of diodes disposed between a plurality of anode lines and a plurality of cathode lines, wherein at least some of the diodes are emissive diodes which are orientated in a forward direction relative to the cathode and anode lines and others of the diodes are sensing diodes orientated in a reverse direction relative to the cathode and anode lines. | 09-02-2010 |
| 20100203663 | Organic Thin Film Transistors, Organic Light-emissive Devices and Organic Light-emissive Displays - A method of manufacturing an organic thin film transistor, the method comprising: depositing a source and drain electrode; forming a thin self-assembled layer of material on the source and drain electrodes, the thin self-assembled layer of material comprising a dopant moiety for chemically doping an organic semi-conductive material by accepting or donating charge and a separate attachment moiety bonded to the dopant moiety and selectively bonded to the source and drain electrodes; and depositing a solution comprising a solvent and an organic semi-conductive material in a channel region between the source and drain electrode. | 08-12-2010 |
| 20100167440 | Light Emissive Device - An organic light emissive device including
| 07-01-2010 |
| 20100155667 | Light-Emissive Device and Method of Manufacture - A light-emissive device is prepared by depositing a polymer layer on a substrate. The deposition process utilizes a formulation comprising a conjugated polymer dissolved in a solvent, the solvent including a trialkyl-substituted aromatic hydrocarbon wherein at least two of the alkyl substituents are ortho to one another. The deposition of the polymer layer on the substrate may be accomplished by an ink-jet method. | 06-24-2010 |
| 20100102300 | Active Matrix Optical Device - An active matrix organic optical device comprising a plurality of organic thin film transistors and a plurality of pixels disposed on a common substrate, wherein a common bank layer is provided for the organic thin film transistors and the pixels, the common bank layer defining a plurality of wells, wherein some of the wells contain the organic semiconducting material of the organic thin film transistors therein and others of the wells contain organic optically active material of the pixels therein. | 04-29-2010 |
| 20100099210 | Method for Fabricating a Polymer L.E.D. - A light-emissive device is prepared by depositing a polymer layer on a substrate. The deposition process utilizes a formulation comprising a conjugated polymer dissolved in a solvent, the solvent including a trialkyl-substituted aromatic hydrocarbon wherein at least two of the alkyl substituents are ortho to one another. The deposition of the polymer layer on the substrate may be accomplished by an ink-jet method. | 04-22-2010 |
| 20100084638 | Thin Film Transistor - A method of making a top-gate organic thin film transistor, comprising forming source and drain contacts on a substrate; oxidizing portions of the source and drain contacts; depositing an organic semiconductor layer to form a bridge between the oxidized portions of the source and drain contacts; depositing a gate insulating layer over the organic semiconductor layer; and forming a gate electrode over the gate insulating layer. | 04-08-2010 |
| 20100059738 | Conductive Polymer Compositions in Opto-Electrical Devices - A conductive polymer composition comprising: a polymer having a HOMO level greater than or equal to −5.7 eV and a dopant having a LUMO level less than −4.3 eV. | 03-11-2010 |
| 20100051922 | Organic Thin Film Transistors - An organic thin film transistor comprising: a substrate; a source electrode and a drain electrode defining a channel; a layer of insulating material disposed over the source and drain electrodes; a layer of organic semi-conductive material extending across the channel; a layer of dielectric material; and a gate electrode disposed over the layer of dielectric material. | 03-04-2010 |
| 20100029886 | Electroluminescent Material and Device - A device comprising an electroluminescent copolymer comprising a light-emitting repeat unit in the polymer backbone and wherein the repeat unit is conjugatively separate from the polymer backbone. | 02-04-2010 |
| 20100026725 | Display Drive Systems - This invention generally relates to methods, apparatus and computer program code for improved OLED (organic light emitting diode) display drive systems, in particular to compensate for burn-in. | 02-04-2010 |
| 20100025703 | Conductive Polymer Compositions in Opto-Electrical Devices - A conductive polymer composition comprising a conductive polymer in a solid polyelectrolyte. | 02-04-2010 |
| 20100019231 | Organic Electronic Device - This invention generally relates to organic electronic devices and to methods for their fabrication. More particularly we will describe organic thin film transistor (TFT) structures and their fabrication. | 01-28-2010 |
| 20090321752 | ELECTRIC DEVICES AND METHODS OF MANUFATURING THE SAME - A process for manufacturing an electrical device, the process comprising the steps: providing a substrate; bringing a stamp into contact with the substrate whereby areas of the substrate contacted by the stamp have decreased wettability; and depositing a liquid comprising an electrically active material over areas of the substrate located between the areas of decreased wettability. | 12-31-2009 |
| 20090315023 | Opto-Electrical Devices and Methods of Manufacturing the Same - A composition for use in the manufacture of an opto-electrical device, the composition comprising: a conductive or semi-conductive organic material; a solvent; and a first additive, wherein the first additive is an alcohol ether having a boiling point lower than 170° C. | 12-24-2009 |
| 20090263567 | Methods of Manufacturing Opto-Electrical Devices - A method of fabricating an opto-electrical device, the method comprising the steps: depositing, on a substrate comprising a first electrode for injecting charge carriers of a first polarity, a composition comprising a conductive or semi-conductive organic material, a solvent, and a first additive; and, depositing a second electrode for injecting charge carriers of a second polarity opposite to the first polarity, wherein the first additive is a basic additive. | 10-22-2009 |
| 20090236972 | PHOSPHORESCENT OLED - An organic light emitting device having a phase-separated light-emissive layer comprising: a charge transport phase comprising a charge transport material; and an emitting phase, the emitting phase comprising a plurality of discrete emissive domains dispersed in the charge transport phase, each emitting domain comprising a host material and one or more metal complexes for emitting light by phosphorescence; wherein the charge transport material has a T1 energy level lower than the T1 energy level of the metal complexes and the host material has a T1 energy level higher than the T1 energy level of the metal complexes. | 09-24-2009 |
| 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 |
| 20090206731 | Rigid Amines - A monomer for use in manufacturing a conjugated polymer, the monomer having a structure as shown formula (2): | 08-20-2009 |
| 20090201281 | Active Matrix Display Drive Control Systems - This invention relates to methods, apparatus, and computer program code for driving an active matrix display, in particular an organic light emitting diode (OLED) display, with reduced power consumption. | 08-13-2009 |
| 20090201230 | Active Matrix Organic Electro-Optic Devices - This invention generally relates to active matrix organic electro-optic devices and to related display driving methods. In embodiments the invention relates to top-emitting OLED (Organic Light Emitting Diode) displays including additional circuitry which may be employed for display driving or other functions. | 08-13-2009 |
| 20090189515 | Laminated interconnects for organic opto-electronic device modules and methods - A method of producing an encapsulated module of interconnected opto-electronic devices which comprises: forming a patterned anode layer; forming a layer of opto-electronically active material over the patterned anode layer; forming a patterned cathode layer over the layer of opto-electronically active material, to provide a device array of opto-electronically active cells on the substrate; selectively removing portions of the layer of opto-electronically active material so as to expose minor portions of the anodes; forming a patterned interconnect layer on an encapsulating sheet in a pattern to define an array of interconnect pads; and laminating the patterned encapsulating sheet over the array of opto-electronically active cells whereby the exposed anode portions are interconnected with the cathodes of adjacent cells by the interconnect pads and the interconnected cells are encapsulated by the encapsulating sheet. | 07-30-2009 |
| 20090186161 | Composition, film manufacturing method, as well as functional device and manufacturing method therefor - Disclosed are compositions, useful in ink jet printing methods, that prevent clogging during dispensing, achieve stable dispensing, prevent precipitation of content matter during dispensing, and prevent phase separation during film formation. Also disclosed are uniform, homogenous, functional films formed using the compositions and manufacturing methods therefor, as well as organic EL devices and other such display devices and manufacturing methods therefor. The compositions contain a functional material and a solvent comprising at least one benzene derivative having one or more substituents, whereby the substituents have at least three carbon atoms in total. | 07-23-2009 |
| 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 |
| 20090167170 | Polymer - A polymer formed from optionally substituted first repeat units of formula (I) wherein Ar is selected from (a) aromatic hydrocarbon substituted with at least one electron withdrawing group or electron withdrawing heteroaryl. The polymers have application in electroluminescent devices. | 07-02-2009 |
| 20090146164 | Blue-Shifted Triarylamine Polymer - A semiconductive conjugated polymer comprising a first repeat unit comprising general formula I: | 06-11-2009 |
| 20090115318 | ORGANIC ELECTRONIC DEVICE STRUCTURES AND FABRICATION METHODS - An organic electronic device structure, the structure comprising: a substrate; a base layer supported by said substrate and defining the base of a well for solvent-based deposition of organic electronic material; one or more spacer layers formed over said base layer; a bank layer formed over said spacer layer to define a side of said well; and wherein an edge of said well adjacent said base layer is undercut to define a shelf over said base layer, said shelf defining a recess to receive said organic electronic material. | 05-07-2009 |
| 20090101893 | Organic Thin Film Transistors - A method of forming an organic thin film transistor comprising source and drain electrodes with a channel region therebetween, a gate electrode, a dielectric layer disposed between the source and drain electrodes and the gate electrode, and an organic semiconductor disposed in at least the channel region between the source and drain electrodes, said method comprising: seeding a surface in the channel region with crystallization sites prior to deposition of the organic semiconductor; and depositing the organic semiconductor onto the seeded surface whereby the organic semiconductor crystallizes at the crystallization sites forming crystalline domains in the channel region. | 04-23-2009 |
| 20090091559 | Display Driver Circuits for Organic Light Emitting Diode Displays with Skipping of Blank Lines, Method of Reducing Power Consumption of a Display, Processor Control Code to Implement the Method, and Carrier for the Control Code - Display driver circuits are described for driving organic light emitting diode displays, particularly passive matrix displays with greater efficiency. Display driver control circuitry ( | 04-09-2009 |
| 20090066229 | Top-Emitting Electroluminescent Devices Comprising Cathode Bus Bars - A top-emitting display apparatus is provided having a plurality of pixels, said apparatus comprising an anode formed on a substrate, a well-defining layer, the thickness of said well-defining layer being insufficient for it to serve as a spacer for an evaporation mask, an organic electroluminescent layer formed on the anode in each well of the well-defining layer to form said plurality of pixels, a layer of metal formed on the top surface of the well-defining layer, and a transparent cathode layer deposited such that it is formed both on the electroluminescent layer and the layer of metal on the top surface of the well-defining layer. A method for the manufacture of such an apparatus is also provided. | 03-12-2009 |
| 20090065741 | APPARATUS AND METHOD FOR THE APPLICATION OF A MATERIAL LAYER TO DISPLAY DEVICES - The invention relates to a method and apparatus for the application of material to form a layer of an organic electroluminescent device. The material is sputter deposited typically from at least one target of material held in respect to a magnetron in a coating chamber. The magnetrons used can be unbalanced magnetrons and/or are provided with other magnetrons and/or magnet arrays in a closed field configuration. The material is found to be deposited in a manner which prevents or minimises damage to the device and hence reduces or removes the need for a barrier layer to be applied. | 03-12-2009 |
| 20090050206 | Method of Preparing OPTO-Electronic Device - A method is provided to produce an opto-electronic device comprising a substrate, a first electrode layer, a second electrode layer of opposite polarity to said first electrode layer, any interlayers and, between said first and second electrode layers, a first functional material in interfacial contact with a second functional material, wherein the first functional material has the structure of a laterally porous film and the second functional material is a film disposed over and interpenetrating with the film of the first functional material. | 02-26-2009 |
| 20090041928 | FORMULATION AND METHOD FOR DEPOSITING A MATERIAL ON A SUBSTRATE - A formulation for depositing a material on a substrate, the formulation comprising the material to be deposited on the substrate dissolved in a solvent system comprising a first solvent component having a relatively high boiling point and which exhibits a relatively low solubility with respect to the material to be deposited, and a second solvent component having a relatively low boiling point and which exhibits a relatively high solubility with respect to the material to be deposited. | 02-12-2009 |
| 20090033214 | Display Devices - A light-emissive device comprising: a light-emissive region ( | 02-05-2009 |
| 20080315757 | Electronic Device - An electronic device containing a hole transporting semiconductive polymer comprising a first repeat unit comprising a first nitrogen of a triarylamine in the polymer backbone and a second nitrogen of an arylamine pendant from the polymer backbone, characterised in that said semiconductive polymer performs the function of transporting holes to or from a semiconductive material in said device. | 12-25-2008 |
| 20080309229 | Arylamine Polymer - A semiconductive polymer comprising a first repeat unit in the polymer backbone comprising general formula 1: | 12-18-2008 |
| 20080305245 | Composition, film manufacturing method, as well as functional device and manufacturing method therefor - Disclosed are compositions, useful in ink jet printing methods, that prevent clogging during dispensing, achieve stable dispensing, prevent precipitating of content matter during dispensing, and prevent phase separation during film formation. Also disclosed are uniform, homogenous, functional films formed using the compositions and manufacturing methods therefor, as well as organic EL devices and other such display devices and manufacturing methods therefor. The compositions contain a functional material and a solvent comprising at least one benzene derivative having one or more substituents, whereby the substituents have at least three carbon atoms in total. | 12-11-2008 |
| 20080303756 | Passive Matrix Display Drivers - This invention generally relates to methods and apparatus for driving passive matrix displays, in particular OLED (Organic Light Emitting Diode) displays. | 12-11-2008 |
| 20080278071 | ORGANIC LIGHT-EMITTING DEVICE AND METHOD OF FABRICATING THE SAME - An organic light-emitting device, comprising: a substrate; a first conductive layer formed over the substrate; at least one layer of a light-emissive organic material formed over the first conductive layer; a barrier layer formed over the at least one organic layer which acts to protect the at least one layer of organic material; and a second conductive layer, preferably a patterned sputtered layer, formed over the barrier layer. | 11-13-2008 |
| 20080265756 | Conductive Polymer Compositions in Opto-Electrical Devices - A conductive composition for use in an organic light-emitting device comprising:
| 10-30-2008 |
| 20080265751 | Light Emissive Device - An organic light emissive device comprising: a first electrode; a second electrode; and an organic light emissive region between the first and second electrodes comprising an organic light emissive material which has a peak emission wavelength, wherein at least one of the electrodes is transparent and comprises a composite of a charge injecting metal and another material which is codepositable with the charge injecting metal, the other material having a different refractive index to that of the charge injecting metal and wherein the other material has a lower degree of quenching at the peak emission wavelength than the charge injecting metal whereby quenching of excitons by the at least one electrode is reduced, the charge injecting metal comprising either a low work function metal having a work function of no more than 3.5 eV or a high work function metal having a work function of no less than 4.5 eV. | 10-30-2008 |
| 20080259987 | Enhanced Emission of Light From Organic Light Emitting Diodes - A device comprising an organic light emitting diode coupled to a cavity, said cavity containing an emitting species, said device being arranged such that light emitted from said organic light emitting diode is at least partially absorbed by the emitting species and re-emitted from the emitting species. The device may be arranged such that the emitting species acts as the gain media of a laser, and the organic light emitting diode may be arranged to pump the emitting species. Also provided is method of generating light, said method comprising: coupling an organic light emitting diode to a cavity, said cavity containing an emitting species, said organic light emitting diode and said cavity being arranged such that light emitted from said organic light emitting diode is at least partially absorbed by the emitting species; operating said organic light emitting diode to emit light which is at least partially absorbed by the emitting species; and re-emitting light from the emitting species. | 10-23-2008 |
| 20080258606 | Light Emitting Device - A light-emitting device comprising: an anode; a cathode; and a light emitting region situated between the anode and the cathode, the light emitting region comprising an exciton generating layer and a phosphorescent layer, the exciton generating layer comprising an organic material, wherein the organic material of the exciton generating layer generates singlet and triplet excitons and emits light by fluorescent emission from the singlet excitons and the phosphorescent layer accepts the triplet excitons from the exciton generating layer and emits light by phosphorescent emission from the triplet excitons. | 10-23-2008 |
| 20080246703 | Display Driving Methods and Apparatus for Driving a Passive Matrix Multicolor Electroluminescent Display - A method of driving a passive matrix multicolor electroluminescent display, the display comprising a plurality of pixels arranged in rows and columns, each said pixel comprising at least first and second sub-pixels having different respective first and second colors, the method comprising: driving groups of said pixels in turn to display a multicolor image frame, said driving of a group of pixels comprising driving first and second sub-groups of sub-pixels of respective said first and second colors; and wherein said driving further comprises driving a said group of pixels for a duration dependent upon a maximum drive level of a sub-pixel of a said sub-group. | 10-09-2008 |
| 20080246606 | Display Monitoring Systems - A consumer electronic device (CED) having a display and including at least one light sensor for recalibrating said display at intervals, wherein said display and said at least one light sensor are mounted within different parts of a unitary housing such that when said CED is not in use said light sensor is able to monitor light from said display. Preferably the different parts of the unitary housing comprise two hinged parts, one mounting the display, the other at least a light sensing portion of the sensor. | 10-09-2008 |
| 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 |
