| Universal Display Corporation Patent applications |
| Patent application number | Title | Published |
|---|
| 20130126832 | ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME - The present invention provides an OLED in which an organic thin film layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the formula (A-I): formula (A-1) wherein R | 05-23-2013 |
| 20130126831 | ORGANIC LIGHT EMITTING MATERIALS - Novel phosphorescent metal complexes containing 2-phenylquinoline ligands with at least two substituents on the quinoline ring are provided. The disclosed compounds have low sublimation temperatures that allow for ease of purification and fabrication into a variety of OLED devices. | 05-23-2013 |
| 20130119354 | HETEROLEPTIC IRIDIUM COMPLEX - Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. The disclosed compounds have low sublimation temperatures that allow for ease of purification and fabrication into a variety of OLED devices. | 05-16-2013 |
| 20130119353 | TRIPHENYLENE SILANE HOSTS - Novel aryl silicon and aryl germanium host materials, and in particular host materials containing triphenylene and pyrene fragments, are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED. | 05-16-2013 |
| 20130112951 | SOLUTION PROCESSABLE DOPED TRIARYLAMINE HOLE INJECTION MATERIALS - Methods for fabricating a solution-processed OLED are provided. The methods include depositing an organic layer comprising mixture of an organic electron acceptor and an organic electron donor to form a layer that is insoluble to a non-polar solvent. Devices containing the organic layer may demonstrate improved lifetime and have a lower operating voltage while maintaining good luminous efficiency. | 05-09-2013 |
| 20130082589 | POWER EFFICIENT RGBW OLED DISPLAY - Embodiments described herein may provide for devices comprising a power efficient RGBW display. In some embodiments, a may be provided. The first device may include at least one pixel. The pixel may include a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The first sub-pixel may include a first color filter in optical communication with a first organic light emitting device. The second sub-pixel may include a second color filter in optical communication with a second organic light emitting device. The third sub-pixel may include a third color filter in optical communication with a third organic light emitting device. The fourth sub-pixel may include a fourth organic light emitting device and emits near white light. At least one of the first sub-pixel or the second sub-pixel may include a color conversion layer in optical communication with the first or second organic light emitting device. | 04-04-2013 |
| 20130082245 | TETRADENTATE PLATINUM COMPLEXES - Novel phosphorescent tetradentate platinum compounds of Formula I are provided. The complexes contain a dibenzo moiety, which allows for the creation of OLED devices with improved properties when compounds of Formula I are incorporated into such devices. Compounds of Formula I′ that comprise two ligands that contain a 5-membered carbocyclic or heterocyclic ring, one of which contains an imidazole ring with a twisted aryl group attached to N−1 and a second aromatic ring that is attached to the platinum via a carbon atom. These compounds may be advantageously used in OLEDs. | 04-04-2013 |
| 20130070440 | OLED Light Panel in Combination with a Gobo - A first device is provided. The first device may include a first light source comprising one or more organic light emitting devices and a gobo that is optically coupled to the first light source. The gobo may allow differential transmission of light emitted by different parts of the first light source so as to create a fixed variation in the light emitted by the first device. | 03-21-2013 |
| 20130060037 | MATERIALS WITH AZA-DIBENZOTHIOPHENE OR AZA-DIBENZOFURAN CORE FOR PHOLED - A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer. | 03-07-2013 |
| 20130048963 | Cyclometallated Tetradentate Pt (II) Complexes - Novel phosphorescent tetradentate platinum (II) compounds are provided. The compounds contain an isoimidazole moiety, optionally further substituted with a twisted aryl. These compounds may be advantageously used in OLEDs. | 02-28-2013 |
| 20130044487 | DYNAMIC STRETCHABLE OLED LAMP - Flexible substrates bearing OLEDs are provided. The flexible substrates are attached to support structures that, when moved, cause the flexible structures to change shape and to thereby change the distribution of radiant intensity emanating from the OLEDs on the flexible substrates. | 02-21-2013 |
| 20130037827 | OLED LIGHT PANEL WITH CONTROLLED BRIGHTNESS VARIATION - Embodiments may provide a light source with a controlled brightness variation. A first device is provided that includes a substrate and a plurality of OLEDs disposed on the substrate. Each of the OLEDs includes a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. The plurality of OLEDs comprise a first group and a second group where a first current density is supplied to the first group of the plurality of OLEDs and a second current density that is different from the first current density is supplied to the second group of the plurality of OLEDs. Each of the plurality of OLEDs is commonly addressable and at least one of the OLEDs in the first group of OLEDs has substantially the same device structure as at least one of the OLEDs in the second group of OLEDs. | 02-14-2013 |
| 20130033185 | EXTENDABLE LIGHT SOURCE WITH VARIABLE LIGHT EMITTING AREA - Embodiments may provide an extendable light source with a variable light emitting area. A first device is provided that includes a support, a first substrate movably coupled to the support, and a plurality of lighting devices disposed on the first substrate. The plurality of lighting devices includes a first portion of lighting devices and a second portion of lighting devices. The first device also includes an energizing component that is configured to selectively energize the first portion and the second portion of lighting devices based on a position of the first substrate relative to the support. | 02-07-2013 |
| 20130032785 | MATERIALS FOR ORGANIC LIGHT EMITTING DIODE - Organometallic compounds comprising a phenylquinoline or phenylisoquinoline ligand having the quinoline or isoquinoline linked to the phenyl ring of the phenylquinoline or phenylisoquinoline, respectively, via two carbon atoms. These compounds also comprise a substituent other than hydrogen and deuterium on the quinoline, isoquinoline or linker. These compounds may be used as red emitters in phosphorescent OLEDs. In particular, these compounds may provide stable, narrow and efficient red emission. | 02-07-2013 |
| 20130026909 | HOST MATERIALS FOR PHOSPHORESCENT OLEDS - Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED. | 01-31-2013 |
| 20130026452 | HETEROLEPTIC IRIDIUM COMPLEXES AS DOPANTS - Novel phosphorescent heteroleptic iridium complexes with phenylpyridine and dibenzo-containing ligands are provided. Alkyl substitution at specific positions on the ligands gives rise to compounds with improved OLED properties, including saturated green emission. | 01-31-2013 |
| 20130020933 | RGBW OLED Display for Extended Lifetime and Reduced Power Consumption - A first device is provided that includes a first light source that has at least one organic light emitting device that may emit near white light having a correlated color temperature (CCT) that is less than 6504K. The first device may also have a plurality of pixels comprising a first sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 400 and 500 nm. A second sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 500 and 580 nm. A third sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 580 and 700 nm. A fourth sub-pixel that emits near white light that may have a CCT that is less than 6504 K. | 01-24-2013 |
| 20130015432 | INORGANIC HOSTS IN OLEDS - A novel electronic device is reported containing a host comprising an inorganic material with a band gap of less than 4 eV. The use of an inorganic material is advantageous due to its desirable physical properties, including increased stability and charge mobility. | 01-17-2013 |
| 20130015430 | Composite Organic/Inorganic Layer for Organic Light-Emitting DevicesAANM Kwong; RaymondAACI PlainsboroAAST NJAACO USAAGP Kwong; Raymond Plainsboro NJ USAANM Xia; ChuanjunAACI LawrencevilleAAST NJAACO USAAGP Xia; Chuanjun Lawrenceville NJ USAANM Harikrishna Mohan; SiddharthAACI PlainsboroAAST NJAACO USAAGP Harikrishna Mohan; Siddharth Plainsboro NJ USAANM Cheon; Kwang-OhkAACI HollandAAST PAAACO USAAGP Cheon; Kwang-Ohk Holland PA USAANM Brooks; JasonAACI PhiladelphiaAAST PAAACO USAAGP Brooks; Jason Philadelphia PA US - Organic electronic devices comprising a covalently bonded organic/inorganic composite layer. The composite layer may be formed by the reaction of a metal alkoxide with a charge transport compound having one or more hydroxyl groups. Examples of metal alkoxides that can be used include vanadium alkoxides, molybdenum alkoxides, titanium alkoxides, or silicon alkoxides. This composite layer can be used for any of the various charge conducting layers in an organic electronic device, including the hole injection layer. | 01-17-2013 |
| 20120319146 | FINE TUNING OF EMISSION SPECTRA BY COMBINATION OF MULTIPLE EMITTER SPECTRA - A first device is provided. The first device includes an anode, a cathode and an emissive layer disposed between the anode and the cathode. The emissive layer includes a first organic emitting material having a first peak wavelength and a second organic emitting material having a second peak wavelength. The emissive layer has a homogenous composition. The second peak wavelength is between 0 and 40 nm greater than the first peak wavelength. | 12-20-2012 |
| 20120319145 | Non-Common Capping Layer on an Organic Device - A first method comprises providing a plurality of organic light emitting devices (OLEDs) on a first substrate. Each of the OLEDs includes a transmissive top electrode. The plurality of OLEDs includes a first portion of OLEDs and a second portion of OLEDs that is different from the first portion. The first method further includes depositing a first capping layer over at least the first portion of the plurality of OLEDs such that the first capping layer is optically coupled to at least the first portion of the plurality of OLEDs. A second capping layer is deposited over at least the second portion of the plurality of OLEDs such that the second capping layer is optically coupled to the second portion of the plurality of OLEDs but not the first portion of the plurality of OLEDs. | 12-20-2012 |
| 20120299468 | HIGH EFFICIENCY YELLOW EMITTERS FOR OLED APPLICATIONS - Novel heteroleptic iridium complexes are described. These iridium compounds contain alkyl substituted phenylpyridine ligands, which provide these compounds with beneficial properties when the iridium complexes are incorporated into OLED devices. | 11-29-2012 |
| 20120298966 | Host materials for oled - Novel aryl silicon and aryl germanium host materials are described. These compounds improve OLED device performance when used as hosts in the emissive layer of the OLED. | 11-29-2012 |
| 20120292601 | PHOSPHORESCENT HETEROLEPTIC PHENYLBENZIMIDAZOLE DOPANTS AND NEW SYNTHETIC METHODOLOGY - Novel heteroleptic iridium complexes are provided. These iridium complexes are useful compounds in OLED devices. The ligands for these novel complexes may be obtained using a new synthetic methodology that utilizes manganese dioxide. | 11-22-2012 |
| 20120292600 | PHOSPHORESCENT HETEROLEPTIC PHENYLBENZIMIDAZOLE DOPANTS - Novel phosphorescent heteroleptic iridium complexes with benzimidazole and phenylpyridine ligands are provided. These iridium complexes can improve OLED properties, and are useful in white light applications. | 11-22-2012 |
| 20120286651 | Simplified Patterned Light Panel - A first device may be provided in some embodiments. The first device may comprise a substrate, a first emissive region, and a second emissive region, where the first emissive region and the second emissive region may comprise a contiguous area. The first device may further comprise a first electrode disposed over the substrate that extends across the first and the second emissive regions, and an organic layer disposed over the substrate that extends across the first and second emissive regions, where the organic layer comprises the same emissive material across the first and the second emissive regions. The first device may further include a second electrode disposed over the substrate that extends across the first and second emissive regions, where the second electrode includes a patterned layer of conductive material that is disposed in the first emissive region and that is not disposed in the second emissive region. | 11-15-2012 |
| 20120286649 | Three Dimensional OLED Lamps - Novel three dimensional OLEDs are provided. The OLEDs have two configurations, and are self supporting in the three dimensional configuration without the need for any external supports. | 11-15-2012 |
| 20120286648 | PROCESS FOR FABRICATING METAL BUS LINES FOR OLED LIGHTING PANELS - Systems and methods for the design and fabrication of OLEDs, including high-performance large-area OLEDs, are provided. Variously described fabrication processes may be used to deposit and pattern bus lines with a smooth profile and a gradual sidewall transition. Such smooth profiles may, for example, reduce the probability of electrical shorting at the bus lines. Accordingly, in certain circumstances, an insulating layer may no longer be considered essential, and may be optionally avoided altogether. In cases where an insulating layer is not used, further enhancements in the emissive area and shelf life of the device may be achieved as well. According to aspects of the invention, bus lines such as those described herein may be deposited, and patterned, using vapor deposition such as vacuum thermal evaporation (VTE) through a shadow mask, and may avoid multiple photolithography steps. Other vapor deposition systems and methods may include, among others, sputter deposition, e-beam evaporation and chemical vapor deposition (CVD). A final profile of the bus line may substantially correspond to the profile as deposited. | 11-15-2012 |
| 20120286302 | Flexible Lighting Devices - A first device and methods for manufacturing the first device are provided. The first device may comprise a flexible substrate and at least one organic light emitting device (OLED) disposed over the flexible substrate. The first device may have a flexural rigidity between 10 | 11-15-2012 |
| 20120286298 | BUS LINE DESIGNS FOR LARGE-AREA OLED LIGHTING - Systems, and methods for the design and fabrication of OLEDs, including large-area OLEDs with metal bus lines, are provided. Various bus line design rules for large area OLED light panels may include mathematical models developed to optimize bus line design and/or layout on large area OLED light panels. For a given panel area dimension, target luminous emittance, OLED device structure and efficiency (as given by the JVL characteristics of an equivalent small area pixel), and electrical resistivity and thickness of the bus line material and electrode onto which the bus lines are disposed, a bus line pattern may be designed such that Fill Factor (FF), Luminance Uniformity (U) and Power Loss (PL) may be optimized. One general design objective may be to maximize FF, maximize U and minimize PL. Another approach may be, for example, to define minimum criteria for U and a maximum criteria for PL, and then to optimize the bus line layout to maximize FF. OLED panels including bus lines with different resistances (R | 11-15-2012 |
| 20120286245 | Dynamic OLED Lighting - A flexible OLED is provided. The substrate on which the flexible OLED is deposited on may be expanded without plastic deformation. | 11-15-2012 |
| 20120280631 | Illumination Source Using LEDs and OLEDs - A first device is provided, wherein the first device is an illumination source comprising OLEDs and inorganic LEDs. The first device includes a first light source that has one or more first light emitting devices. Each of the first light emitting devices includes an inorganic light emitting diode (LED) that emits light that has a peak wavelength in the visible spectrum between 400 and 500 nm. The device also includes a second light source that has one or more second light emitting devices. Each of the second light emitting devices comprises an organic light emitting diode (OLED) that emits light that has peak wavelength in the visible spectrum between 500 and 800 nm. The device also includes a driving component. The first light source and the second light source are disposed such that their emissions combine. | 11-08-2012 |
| 20120270349 | LIQUID COMPOSITIONS FOR INKJET PRINTING OF ORGANIC LAYERS OR OTHER USES - A method of forming an organic layer for an organic electronic device (e.g., an OLED) by using a liquid composition comprising a small molecule organic semiconductor material mixed in a solvent preparation in which the content of higher boiling impurities is reduced. The solvent preparation comprises a high boiling point solvent and 0.1 wt % or less of impurities having a higher boiling point than the solvent. The liquid composition is deposited on a surface by inkjet printing to form the organic layer. Also, provided are liquid compositions which can be used to make organic layers. | 10-25-2012 |
| 20120267612 | CROSS-LINKABLE COPPER PHTHALOCYANINE COMPLEXES - Cross-linkable copper complexes comprising a copper phthalocyanine core and one or more cross-linkable functionalities linked to the phthalocyanine core. The copper complex may have a spacer group with the one or more cross-linkable functionalities on the spacer group. The spacer group contains a chain or one or more aryl groups. These cross-linkable copper complexes may be used in making organic electronic devices, such as OLEDs, by solution processing techniques. | 10-25-2012 |
| 20120256938 | Method For Driving Quad-Subpixel Display - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. A method of displaying an image on such a display is also provided, where the image signal may be in a format designed for use with a three sub-pixel architecture, and the method involves conversion to a format usable with the four sub-pixel architecture. | 10-11-2012 |
| 20120256169 | SUBSTITUTED OLIGOAZACARBAZOLES FOR LIGHT EMITTING DIODES - Novel compounds containing substituted oligoazacarbazole chains are provided. These compounds are useful in organic light emitting devices, in particular as hosts in the emissive layer of such devices. | 10-11-2012 |
| 20120256136 | Nitrile Solvent Composistions for Inkjet Printing of Organic Layers - A liquid composition (e.g., inkjet fluid) for forming an organic layer of an organic electronic device (e.g., an OLED). The liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic solvent. The aromatic solvent, when left as a residue in the organic layer, is capable of presenting relatively reduced resistivity to charge transport or facilitating charge transport in the organic layer that is deposited, as compared to other conventional solvents. In certain embodiments, the aromatic solvent compound has the following formula: wherein R represents one or more optional substituents on the benzene ring, wherein each R is independently an aliphatic group containing from 1-15 carbon atoms; and wherein X is a substitution group that contains an electron-withdrawing group selected from nitrile, sulfonyl, or trifluoromethyl. | 10-11-2012 |
| 20120235701 | Method for Accelerated Lifetesting of Large Area OLED Lighting Panels - A method for accelerated life testing of organic devices, and in particular large area organic emissive devices, is provided. The first method comprises obtaining one or more individual organic emissive devices, each having a first organic stack comprising one or more organic layers. The lifetime of each of the one or more individual organic emissive devices is measured at one or more temperatures at a non-heating current density. Based upon the measured lifetimes at the non-heating current density of the one or more devices, the device lifetime is determined for a selected luminance. An organic emissive panel is also obtained having a second organic stack that consists essentially of the one or more organic layers of the first organic stack. The junction temperature of the organic emissive panel is then determined at a heating current density. Based upon the junction temperature and the device lifetime of the one or more individual organic emissive devices at the selected luminance, the expected lifetime of the organic emissive panel is then determined at the heating current density. | 09-20-2012 |
| 20120228583 | PYRIDYL CARBENE PHOSPHORESCENT EMITTERS - Organometallic compounds comprising an imidazole carbene ligand having a N-containing ring fused to the imidazole ring are provided. In particular, the N-containing ring fused to the imidazole ring may contain one nitrogen atom or more than one nitrogen atom. These compounds may demonstrate high photoluminescent (PL) efficiency, Gaussian emission spectra, and/or short excited state lifetimes. These materials may be especially useful as blue phosphorescent emitters. | 09-13-2012 |
| 20120223634 | NOVEL TETRADENTATE PLATINUM COMPLEXES - Novel phosphorescent tetradentate platinum (II) compounds comprising a twisted aryl group are provided. Also provided are novel phosphorescent tetradentate platinum (II) compounds comprising an imidazo[1,2-f]phenanthridine moiety. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime. | 09-06-2012 |
| 20120217868 | GERMANIUM-CONTAINING RED EMITTER MATERIALS FOR ORGANIC LIGHT EMITTING DIODE - Organometallic compounds comprising a germanium-containing substituent are provided. The compounds may be used in organic light emitting devices to provide improved device efficiency, line shape and lifetime. In particular, the compounds comprise a phenylquinoline or phenylisoquinoline ligand having a germanium-containing substituent on the quinoline or isoquinoline portion of the ligand. These compounds may be advantageously used as red emitters in the emissive layer of organic light emitting devices. | 08-30-2012 |
| 20120212126 | THIOAZOLE AND OXAZOLE CARBENE METAL COMPLEXES AS PHOSPHORESCENT OLED MATERIALS - Compounds are provided that comprise a heterocyclic carbene ligand. In particular, an oxazole or a thioazole carbene are used in place of the traditional imidazole carbene. These compounds may be used in OLEDs to provide devices having improved properties, such as stability and color-tuning. Additionally, a novel methodology to synthesize heterocyclic carbene metal complexes is provided. | 08-23-2012 |
| 20120205637 | LIQUID COMPOSITIONS FOR INKJET PRINTING OF ORGANIC LAYERS OR OTHER USES - A method of forming an organic layer by using a liquid composition comprising a small molecule organic semiconductor material mixed in a ketone solvent. The liquid composition is deposited on a surface to form the organic layer. The ketone solvent may be an aromatic ketone solvent, such as a tetralone solvent. The organic semiconductor material may be cross-linkable to provide a cross-linked organic layer. The method can be used to make organic electronic devices, such as organic light emitting devices. In another aspect, the liquid composition comprises a small molecule organic semiconductor material mixed in an aromatic ether solvent. Also, provided are liquid compositions which can be used to make organic layers. | 08-16-2012 |
| 20120187381 | Electron Transporting Compounds - Compounds comprising an aza-dibenzo moiety and a condensed aromatic moiety having at least three benzene rings are provided. In particular, the compounds may comprise an azadibenzofuran, azadibenzothiophene, or azadibenzoselenophene joined directly or indirectly to an anthracene. The compounds may be used in the electron transport layer of organic light emitting devices to provide devices with improved properties. | 07-26-2012 |
| 20120181933 | OLED LIGHTING DEVICE WITH SHORT TOLERANT STRUCTURE - A first device that may include a short tolerant structure, and methods for fabricating embodiments of the first device, are provided. A first device may include a substrate and a plurality of OLED circuit elements disposed on the substrate. Each OLED circuit element may include a fuse that is adapted to open an electrical connection in response to an electrical short in the pixel. Each OLED circuit element may comprise a pixel that may include a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. Each of the OLED circuit elements may not be electrically connected in series with any other of the OLED circuit elements. | 07-19-2012 |
| 20120181511 | 5-Substituted 2 Phenylquinoline Complexes Materials for Light Emitting Diode - Compounds are provided that comprise a ligand having a 5-substituted 2-phenylquinoline. In particular, the 2-phenylquinoline may be substituted with a bulky alkyl at the 5-position. These compounds may be used in organic light emitting devices, in particular as red emitters in the emissive layer of such devices, to provide devices having improved properties. | 07-19-2012 |
| 20120162995 | 3D Light Extraction System With Uniform Emission Across - Systems and methods for OLED lighting panels are provided in which a light extraction block is optically coupled to a light source. The light extraction block includes a plurality of non-parallel light emitting surface normals. At least one light diffusing layer covers a surface of the light extraction block. The light diffusing layer may be positioned, for example, on a light emitting surface of the light extraction block and/or on a mating surface of the light extraction block. The plurality of light emitting surface normals may be located on different non-parallel light emitting surfaces of the light extraction block, or on different points of a curved emitting surface. All of the light emitting surfaces and/or the mating surface, of the light extraction block may be covered by a light diffusing layer. The optical emission intensity and/or the optical emission color from the plurality of light emitting surface normals may be substantially equal. | 06-28-2012 |
| 20120161610 | Light Extraction Block with Curved Surface - Light extraction blocks, and OLED lighting panels using light extraction blocks, are described, in which the light extraction blocks include various curved shapes that provide improved light extraction properties compared to parallel emissive surface, and a thinner form factor and better light extraction than a hemisphere. Lighting systems described herein may include a light source with an OLED panel. A light extraction block with a three-dimensional light emitting surface may be optically coupled to the light source. The three-dimensional light emitting surface of the block may includes a substantially curved surface, with further characteristics related to the curvature of the surface at given points. A first radius of curvature corresponding to a maximum principal curvature k | 06-28-2012 |
| 20120119190 | PHOSPHORESCENT MATERIALS - Compounds comprising a ligand having a quinoline or isoquinoline moiety and a phenyl moiety, e.g., (iso)pq ligands. In particular, the ligand is further substituted with electron donating groups. The compounds may be used in organic light emitting devices, particularly devices with emission in the deep red part of the visible spectrum, to provide devices having improved properties. | 05-17-2012 |
| 20120068162 | PERMEATION BARRIER FOR ENCAPSULATION OF DEVICES AND SUBSTRATES - A permeation barrier film structure for organic electronic devices includes one or more bilayers having a hybrid permeation barrier composition. Each of the one or more bilayers includes a first region having a first composition corresponding to a first CF | 03-22-2012 |
| 20120061654 | METAL COMPLEX COMPRISING NOVEL LIGAND STRUCTURES - Compounds comprising a metal complex having novel ligands are provided. In particular, the compound is an iridium complex comprising novel aza DBX ligands. The compounds may be used in organic light emitting devices, particularly as emitting dopants, providing improved efficiency, low operating voltage, and long lifetime. | 03-15-2012 |
| 20120012829 | DIBENZOTHIOPHENE-CONTAINING MATERIALS IN PHOSPHORESCENT LIGHT EMITTING DIODES - A new class of dibenzothiophene and/or dibenzofuran-containing compounds are provided. The new compounds may be useful in organic light emitting devices, particularly as the host of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer. | 01-19-2012 |
| 20110304263 | Triplet-Triplet Annihilation Up Conversion (TTA-UC) For Display and Lighting Applications - Novel devices comprising a layer including compounds that are capable of triplet triplet annihilation up conversation (TTA-UC). In particular, the up-conversation layer absorbs light emitted by the OLED device and emits up-converted light with shorter wavelength in response. These devices may be used to provide improved lifetime for blue emitting devices. | 12-15-2011 |
| 20110304262 | Delayed-Fluorescence OLED - Novel organic compounds comprising a substituted anthracene or acridine ligand are provided. In particular, the compound includes an anthracene ligand substituted at the 9 and 10 positions. The compound may be used in organic light emitting devices to provide devices having improved efficiency and lifetime. In particular, these compounds may be especially beneficial for use in blue-emitting OLEDs. | 12-15-2011 |
| 20110284899 | Organic Light Emitting Device Lighting Panel - A first device that may include one or more organic light emitting devices. At least 65 percent of the photons emitted by the organic light emitting devices are emitted from an organic phosphorescent emitting material. An outcoupling enhancer is optically coupled to each organic light emitting device. In one embodiment, the light panel is not attached to a heat management structure. In one embodiment, the light panel is capable of exhibiting less than a 10 degree C. rise in junction temperature when operated at a luminous emittance of 9,000 lm/m | 11-24-2011 |
| 20110279019 | AZABORININE COMPOUNDS AS HOST MATERIALS AND DOPANTS FOR PHOLEDS - Novel organic compounds comprising azaborine are provided. In particular, the compounds comprise a dibenzo-1,4,-azaborine core having a phenyl substituent on the boron atom, and aryl or heteroaryl substituents at positions 2 and 6 of the phenyl substituent. These compounds may be advantageously used in organic light-emitting devices to provide improved efficiency and lifetime. | 11-17-2011 |
| 20110278556 | Azaborinine Compounds As Host Materials And Dopants For PHOLEDs - Novel organic compounds comprising azaborine are provided. In particular, the compounds comprise a dibenzo-1,4,-azaborine core having a phenyl substituent on the boron atom, and aryl or heteroaryl substituents at positions 2 and 6 of the phenyl substituent. These compounds may be advantageously used in organic light-emitting devices to provide improved efficiency and lifetime. | 11-17-2011 |
| 20110266526 | Triphenylene-Benzofuran/Benzothiophene/Benzoselenophene Compounds With Substituents Joining To Form Fused Rings - Compounds comprising a triphenylene moiety and a benzo- or dibenzo-moiety are provided. In particular, the benzo- or dibenzo-moiety has a fused substituent. These compounds may be used in organic light emitting devices, particularly in combination with yellow, orange and red emitters, to provide devices with improved properties. | 11-03-2011 |
| 20110260138 | BICARBZOLE CONTAINING COMPOUNDS FOR OLEDS - Novel organic compounds comprising a bicarbazole core are provided. In particular, the compound has a 3;3′-bicarbazole core substituted at the 9 | 10-27-2011 |
| 20110248294 | NOVEL OLED DISPLAY ARCHITECTURE - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. The device includes a first device plane and a second device plane. The first device plane comprises a plurality of the first organic light emitting device and a plurality of the second organic light emitting device. The second device plane comprises a plurality of at least one of the third organic light emitting device and the fourth organic light emitting device. The planes of the first and second device planes are parallel. The second device plane is transposed from the first device plane in a direction perpendicular to the planes of the first and second device planes. The first and second device planes are superposed. | 10-13-2011 |
| 20110248250 | ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME - The present invention provides an OLED in which an organic thin film layer comprising a single layer or plural layers is provided between a cathode and an anode, where the organic thin film layer comprises at least one light emitting layer, and the at least one light emitting layer comprises (a) a host material represented by the following Formula (1): Ra—Ar | 10-13-2011 |
| 20110240984 | OLED STABILITY VIA DOPED HOLE TRANSPORT LAYER - An organic light emitting device is provided. The device includes an anode and a cathode. A first organic layer is disposed between the anode and the cathode. The first organic layer is an emissive layer that includes a first organic emitting material. The device also includes a second organic layer disposed between the anode and the first organic layer. The second organic layer is a non-emissive layer. The second organic layer includes an organic small molecule hole transport material having a concentration of 50 to 99 wt %, and an organic small molecule electron transport material having a concentration of 0.1 to 5 wt %. Other materials may be present. | 10-06-2011 |
| 20110233528 | NOVEL OLED DISPLAY ARCHITECTURE - A quad pixel device is provided. Each pixel is an organic light emitting device (OLED), such that there is a first, second, third and fourth OLED. Each of the first, second, third and fourth OLEDs independently has a first electrode and a second electrode. Each OLED also independently has an organic emissive stack having an emitting material, disposed between the first and second electrodes; a first organic stack disposed between and in contact with the first electrode and the emissive stack; and a second organic stack disposed between and in contact with the second electrode and the emissive layer. The organic emissive stack of the first OLED, the organic emissive stack of the second OLED, the organic emissive stack of the third OLED, and the organic emissive stack of the fourth OLED each have different emissive spectra. The first organic stack of the first OLED, the first organic stack of the second OLED, and the first organic stack of the third OLED are different from each other in materials or thickness, or both. The first organic stack of the third OLED and the first organic stack of the fourth OLED are the same. | 09-29-2011 |
| 20110227049 | PHOSPHORESCENT MATERIALS - Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl. | 09-22-2011 |
| 20110215710 | PHOSPHORESCENT MATERIALS - Compounds comprising a 2-phenylpyridine ligand further substituted with a heterocyclic group are provided. In particular, the compound comprises a 2-phenylpyridine ligand further substituted with a nitrogen-containing heterocycle. The compounds may be used in organic light emitting devices to provide devices having improved efficiency and lifetime. | 09-08-2011 |
| 20110215309 | WHITE PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES - A device is provided. The device includes an anode, a cathode and a double emissive layer disposed between the anode and the cathode. The double emissive layer includes a first organic emissive layer and a second organic emissive layer. The first organic emissive layer includes a first phosphorescent material having a concentration of 15-35 wt % in the first organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 400 nm and 500 nm; and a first host material having a triplet energy at least 0.2 eV and not more than 1.0 eV greater than the triplet energy of the first phosphorescent material. The second organic emissive layer includes a second phosphorescent material having a concentration of 15-35 wt % in the second organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 500 nm and 600 nm, and a third phosphorescent material having a concentration of 0.1-3 wt % in the second organic emissive layer, and a peak emissive wavelength in the visible spectrum at a wavelength between 600 nm and 700 nm. The second host material has a triplet energy greater than that of the third phosphorescent emissive material. The second organic emissive layer is disposed between the anode and the cathode, and is adjacent to the first organic emissive layer. The device also includes a blocking layer disposed adjacent to the second organic emissive layer and between the second organic emissive layer and the anode. The blocking layer has a lowest unoccupied molecular orbital that is at least 0.1 eV greater than the lowest unoccupied molecular orbital of the second host material. The device also includes a hole transport layer disposed between the blocking layer and the anode. At least one of the anode and the cathode is transmissive. | 09-08-2011 |
| 20110204333 | PHOSPHORESCENT EMITTERS - Compounds including a ligand with a dibenzo-fused 5-membered ring substituent are provided. In particular, the compounds may be iridium complexes including imidazole coordinated to the dibenzo-substituted ligand. The dibenzo-fused 5-membered ring moiety of the ligand may be twisted or minimally twisted out of plane with respect to the rest of the ligand structure. The compound may be used in organic light emitting devices, particularly as emitting dopants in blue devices. Devices comprising the compounds may demonstrate improved stability while maintaining excellent color. | 08-25-2011 |
| 20110177641 | ELECTROLUMINESCENT DEVICES FOR LIGHTING APPLICATIONS - A method of fabricating an organic light emitting device is provided. A first electrode is provided, over which the rest of the device will be fabricated. A first organic layer is deposited over the first electrode via solution processing. The first organic layer includes:
| 07-21-2011 |
| 20110163302 | HOLE TRANSPORT MATERIALS HAVING A SULFUR-CONTAINING GROUP - Novel materials are provided, having a single phenyl or a chain of phenyls where there is a nitrogen atom on each end of the single phenyl or chain of phenyls. The nitrogen atom may be further substituted with particular thiophene, benzothiophene, and triphenylene groups. Organic light-emitting devices are also provided, where the novel materials are used as a hole transport material in the device. Combinations of the hole transport material with specific host materials are also provided. | 07-07-2011 |
| 20110127506 | OLED Display Architecture with Improved Aperture Ratio - A device such as a display region that includes a plurality of multi-color pixels is provided. Each pixel may have several types of organic light emitting devices that operate as sub-pixels, and at least one type of device may be shared by multiple pixels. Less-used and/or more efficient device types, such as deep blue and green light emitting devices, may be shared between multiple pixels, leading to an improved aperture ratio and fill factor for the device. | 06-02-2011 |
| 20110097495 | ORGANIC VAPOR JET PRINTING WITH CHILLER PLATE - A device is provided. The device includes a nozzle, a source of carrier gas and a source of organic molecules in fluid communication with the nozzle. The device also includes an active cooling system disposed adjacent to the nozzle. Preferably, the device also includes a chamber, wherein the nozzle, and the active cooling system are disposed within the chamber. A substrate holder may also be disposed within the chamber, adapted to support a substrate beneath the nozzle, movable relative to the nozzle. Preferably, a substrate is held by the substrate holder, the substrate disposed at a distance of 0.1 to 10 mm from the active cooling system. Preferably, the device also includes a heating system attached to the nozzle. The points at which the heating system are attached to the nozzle preferably includes at least one point that is zero to 5 mm from the tip of the nozzle. | 04-28-2011 |
| 20110084599 | SINGLE TRIPHENYLENE CHROMOPHORES IN PHOSPHORESCENT LIGHT EMITTING DIODES - Novel triphenylene compounds are provided. Specific examples include multi-aryl-substituted triphenylenes. A preferred group of compounds are triphenylenes that are substituted with a non-fused aryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups and alkyl groups. A further preferred group of compounds are triphenylenes that are substituted with a non-fused heteroaryl group having one or more meta-substituents, where each meta-substituent is a non-fused aryl or heteroaryl group optionally substituted with further substituents selected from the group consisting of non-fused aryl groups, non-fused heteroaryl groups, and alkyl groups. Some high triplet energy analogs are expected to work with deep blue phosphorescent dopants. The compounds may be useful in phosphorescent organic light emitting devices. Also provided is an organic electroluminescent device comprising an anode, a cathode, and an emissive layer between the anode and the cathode, the emissive layer comprising a phosphorescent material and a compound having a repeat unit, the repeat unit containing a triphenylene moiety. | 04-14-2011 |
| 20110062462 | Novel Device Structure - Organic light emitting devices are provided having multiple subpixels. An organic spacer layer is provided in at least one subpixel to protect the emissive layer of the at least one subpixel from overspray due to the deposition of a different emissive layer in a nearby subpixel. More generally, a first device is provided, where the first device comprises a multicolor organic light emitting device. The first device may be the multicolor organic device itself. Or, the first device may be a larger device, such as a consumer device, that includes one or many of the multicolor organic devices. The multicolor organic light emitting, device further comprises multiple subpixels. In the most general case, there are at least a first subpixel and a second subpixel. | 03-17-2011 |
| 20110059259 | Method and System for High-Throughput Deposition of Patterned Organic Thin Films - High-throughput OVJP systems and methods are provided that may use multiple flow paths having different conductances to enable deposition with relatively short lag times. A high-throughput OVJP system may include a flow tube having a cross-sectional area much larger than the diameter of one or more apertures through which source material may be expelled during deposition. Use of such a configuration may allow for deposition with reduced lag times. | 03-10-2011 |
| 20110057559 | PHOSPHORESCENT EMITTERS AND HOST MATERIALS WITH IMPROVED STABILITY - Devices containing a particular combination of organic compounds are provided. In particular, the devices contain twisted aryl compounds having extended conjugation (i.e., the twisted aryl is substituted with an additional aryl group) in combination with dibenzothiophene or dibenzofuran containing host materials. The organic light emitting devices may provide improved stability color, lifetime and manufacturing. Compounds containing a twisted aryl having extended conjugation are also provided. | 03-10-2011 |
| 20110057171 | Long lifetime Phosphorescent Organic Light Emitting Device (OLED) Structures - An organic light emitting device is provided having an emissive layer with an internal interface. The concentration of a second phosphorescent material in a second organic layer is different from the concentration of a first phosphorescent material in a first organic layer, creating the interface. The materials in the first and second organic layers may be the same or different. In addition to this interface within the emissive layer, the device has one or more features designed to mitigate failure mechanisms which may be associated with electrons or excitons passing from the cathode through the emissive layer to damage organic layers on the anode side of the emissive layer. In addition, devices are provided having an interface within the emissive layer as described above, and a lower energy emissive material on at least one side of the interface. | 03-10-2011 |
| 20100323464 | LIQUID COMPOSITIONS FOR INKJET PRINTING OF ORGANIC LAYERS OR OTHER USES - A method of forming an organic layer for an organic electronic device (e.g., an OLED) by using a liquid composition comprising a small molecule organic semiconductor material mixed in a solvent preparation in which the content of higher boiling impurities is reduced. The solvent preparation comprises a high boiling point solvent and 0.1 wt % or less of impurities having a higher boiling point than the solvent. The liquid composition is deposited on a surface by inkjet printing to form the organic layer. Also, provided are liquid compositions which can be used to make organic layers. | 12-23-2010 |
| 20100295032 | METAL COMPLEXES WITH BORON-NITROGEN HETEROCYCLE CONTAINING LIGANDS - Novel organic compounds comprising ligands containing a boron-nitrogen heterocycle are provided. In particular, the compound is a metal complex comprising a ligand containing an azaborine. The compounds may be used in organic light emitting devices to provide devices having improved photophysical and electronic properties. | 11-25-2010 |
| 20100289406 | 2-AZATRIPHENYLENE MATERIALS FOR ORGANIC LIGHT EMITTING DIODES - Compounds containing 2-azatriphenylene are provided. In particular, compounds containing a 2-azatriphenylene core having an additional aromatic group are provided. The compounds provided may be emissive or non-emissive materials. The compounds may be used in organic light emitting devices, particularly as host materials, hole blocking layer materials, or emitting dopants. Devices comprising 2-azatriphenylene containing compounds may demonstrate improved stability and efficiency. | 11-18-2010 |
| 20100270916 | IRIDIUM COMPLEX WITH METHYL-D3 SUBSTITUTION - Novel organic compounds comprising ligands with deuterium substitution are provided. In particular, the compound is an iridium complex comprising methyl-d | 10-28-2010 |
| 20100244725 | MULTIPLE DOPANT EMISSIVE LAYER OLEDS - An organic light emitting device comprising, an anode, a cathode, and an emissive layer, located between the anode and the cathode, of a host compound, a first compound capable of phosphorescent emission at room temperature, and a second compound capable of phosphorescent emission at room temperature is provided. At least 95 percent of emission from the device is produced from the second compound when an appropriate voltage is applied across the anode and cathode. | 09-30-2010 |
| 20100244069 | NOVEL OLED DISPLAY ARCHITECTURE - A device is provided. The device includes first, second and third subpixels. The first sub-pixel includes an emissive layer having a first emitting material but not a second emitting material. The second sub-pixel includes an emissive layer having the second emitting material but not the first emitting material. The third sub-pixel includes an emissive layer having both the first and second emitting materials. A method of fabricating the device is provided. For a three subpixel device, a first electrode layer is deposited, having a first sub-pixel and a second sub-pixel. Then, in a first patterned deposition process, a first emitting material is deposited on the first sub-pixel and the third sub-pixel, but not the second sub-pixel. Then, in a second patterned deposition process, a second emitting material is deposited on the second sub-pixel and the third sub-pixel, but not the first sub-pixel. Then, a second electrode layer is deposited. The first, second and third subpixels may be defined, for example, by patterning in either or both of the first and second electrode layers. Preferably, the device and method include a fourth subpixel. | 09-30-2010 |
| 20100244004 | HETEROLEPTIC IRIDIUM COMPLEX - Novel compounds comprising heteroleptic iridium complexes are provided. The compounds have a particular combination of ligands which includes a single pyridyl dibenzo-substituted ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants, to provide devices having improved efficiency, lifetime, and manufacturing. | 09-30-2010 |
| 20100237334 | Benzo-Fused Thiophene or Bezon-Fused Furan Compounds Comprising a Triphenylene Group - Triphenylene containing benzo-fused thiophene compounds are provided. Additionally, triphenylene containing benzo-fused furan compounds are provided. The compounds may be useful in organic light emitting devices, particularly as hosts in the emissive layer of such devices, or as materials for enhancement layers in such devices, or both. | 09-23-2010 |
| 20100225252 | NOVEL AMOLED DISPLAY ARCHITECTURE - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. | 09-09-2010 |
| 20100187984 | MATERIALS WITH AZA-DIBENZOTHIOPHENE OR AZA-DIBENZOFURAN CORE FOR PHOLED - A new class of compounds containing aza-dibenzothiophene or aza-dibenzofuran are provided. The compounds may be used in organic light emitting devices giving improved stability, improved efficiency, long lifetime and low operational voltage. In particular, the compounds may be used as the host material of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer. | 07-29-2010 |
| 20100148663 | Blue Emitter with High Efficiency Based on Imidazo[1,2-f] Phenanthridine Iridium Complexes - Imidazo[1,2-f]phenanthridine compounds are provided. The compounds have a twisted aryl moiety further substituted by alkyl having four or more atoms. The compounds may be used in organic light emitting devices, particularly as emissive dopants, providing devices with improved efficiency, stability, and manufacturing. In particular, the compounds provided herein may be used in blue devices having high efficiency. | 06-17-2010 |
| 20100141127 | PHOSPHORESCENT EMITTERS - Heteroleptic compounds containing phenylpyridine and phenylbenzimidazole are provided. The compounds may be used in organic light emitting devices, particularly as emissive dopants in the emissive layer of such devices. | 06-10-2010 |
| 20100090620 | NOVEL OLED DISPLAY ARCHITECTURE - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. | 04-15-2010 |
| 20100090591 | PHOSPHORESCENT MATERIALS - Phosphorescent materials and devices having high efficiency and stability, narrow spectrum, and improved processibility. | 04-15-2010 |
| 20100090241 | EMISSIVE LAYER PATTERNING FOR OLED - An organic light emitting device is provided. The device includes an anode, a cathode, and an organic emissive stack disposed between the anode and the cathode. The device may be a “pixel” in a display, capable of emitting a wide variety of colors through the use of independently addressable “sub-pixels,” each subpixel emitting a different spectrum of light. In the most general sense, the device includes a first subpixel and a second subpixel, and at least one of the anode and the cathode has independently addressable first and second regions corresponding to the first and second subpixels. The device includes an emissive stack disposed between the anode and the cathode. The emissive stack includes a first organic emissive layer and a second organic emissive layer. The first organic emissive layer is disposed between the anode and the cathode, and extends throughout the first and second regions. The second organic emissive layer is disposed between the anode and the cathode, and extends throughout the second region but not the first region. The second organic emissive layer is disposed closer to the cathode than the first organic emissive layer. The first organic emissive layer is emissive in the first region, and the second organic emissive layer is emissive in the second region. | 04-15-2010 |
| 20100013378 | INTERMEDIATE CONNECTOR FOR STACKED ORGANIC LIGHT EMITTING DEVICES - A device is provided, having an anode, a cathode, and an intermediate connector disposed between the anode and the cathode. A first organic layer including an emissive sublayer is disposed between the anode and the intermediate connector, and a second including an emissive sublayer is disposed between the intermediate connector and the cathode. The intermediate connector includes a first metal having a work function lower than 4.0 eV and a second metal having a work function lower than 5.0 eV. The work function of the first metal is at least 0.5 eV less than the work function of the second metal. The first metal is in contact with a sublayer of the second organic layer that includes a material well adapted to receive holes from a low work function metal. | 01-21-2010 |
| 20090200927 | ORGANIC LIGHT EMITTING DEVICE ARCHITECTURE - An organic light emitting device is provided. The device includes an anode and a cathode. A first emissive layer is disposed between the anode and the cathode. The first emissive layer includes a first non-emitting organic material, which is an organometallic material present in the first emissive layer in a concentration of at least 50 wt %. The first emissive layer also includes a first emitting organic material. A second emissive layer is disposed between the first emissive layer and the cathode, preferably, in direct contact with the first emissive layer. The second emissive material includes a second non-emitting organic material and a second emitting organic material. The first and second non-emitting materials, and the first and second emitting materials, are all different materials. A first non-emissive layer is disposed between the first emissive layer and the anode, and in direct contact with the first emissive layer. The first non-emissive layer comprises the first non-emissive organic material. | 08-13-2009 |
| 20090167162 | DIBENZOTHIOPHENE-CONTAINING MATERIALS IN PHOSPHORESCENT LIGHT EMITTING DIODES - A new class of dibenzothiophene and/or dibenzofuran-containing compounds are provided. The new compounds may be useful in organic light emitting devices, particularly as the host of an emissive layer having a host and an emissive dopant, or as a material in an enhancement layer. | 07-02-2009 |
| 20090153034 | CARBAZOLE-CONTAINING MATERIALS IN PHOSPHORESCENT LIGHT EMITTINIG DIODES - Carbazole-containing compounds are provided. In particular, the compounds are oligocarbazole-containing compounds having an unsymmetrical structure. The compounds may be useful in organic light emitting devices, in particular as hosts in the emissive layer of such devices. | 06-18-2009 |
| 20090134784 | CARBAZOLE-CONTAINING MATERIALS IN PHOSPHORESCENT LIGHT EMITTING DIODES - Carbazole-containing compounds are provided. In particular, the compounds are oligocarbazole-containing compounds having an unsymmetrical structure. The compounds may be useful in organic light emitting devices, in particular as hosts in the emissive layer of such devices. | 05-28-2009 |
| 20090130296 | Fabrication of Organic Electronic Devices by Ink-Jet Printing at Low Temperatures - Methods of forming an organic layer by ink-jet printing in the fabrication of an organic electronic device. The organic layer is formed by ink-jet printing onto a surface, a solution comprising an organic material in a low boiling point solvent. The ink-jet printing occurs at an ambient temperature of less than 20° C. such that the solvent has a vapor pressure of 10 mmHg or less. The ink-jet printing may be performed in a temperature-controlled chamber. After ink-jet printing the solution, the solvent is evaporated such that the organic material remains on the surface, thereby forming the organic layer. | 05-21-2009 |
| 20090121624 | STABLE BLUE PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES - Novel combination of materials and device architectures for organic light emitting devices are provided. In some aspects, specific charge carriers and solid state considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, emitter purity is a feature that may result in devices having unexpectedly long lifetime. In some aspects, structural and optical considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, an emissive layer including an organic phosphorescent emissive dopant and an organic carbazole host material results in devices having an unexpectedly long lifetime. | 05-14-2009 |
| 20090121621 | SATURATED COLOR ORGANIC LIGHT EMITTING DEVICES - An organic light emitting device is provided. The device has a first electrode, a second electrode, and an emissive layer disposed between the first and second electrodes. The emissive layer includes an emissive material with an intrinsic emission spectrum having a peak emission wavelength in the visible spectrum less than 500 nm. The device includes a color saturation enhancement layer in direct contact with the first electrode. The color saturation enhancement layer consists essentially of one or more metals or conductive doped inorganic semiconductors, and has an index of refraction at least 0.2 different from that of the organic layers. The color saturation enhancement layer has a thickness of 1-10 nm. The reflectivity of the color saturation enhancement layer is in the range 5% to 30% for the peak wavelength in the intrinsic emission spectrum of the emissive material. Preferably, the color saturation enhancement layer is disposed between the first and second electrodes. | 05-14-2009 |
| 20080261076 | PHOSPHORESCENT MATERIALS - Phosphorescent materials and devices with high device efficiency, stability, and processibility. | 10-23-2008 |
| 20080220265 | Cross-linkable Iridium Complexes and Organic Light-Emitting Devices Using the Same - Organic devices comprising an organic layer, wherein the organic layer is non-electroluminescent and comprises a cross-linked metal complex. The cross-linked metal complex may be formed by cross-linking a cross-linkable iridium complex, which comprises a set of ligands coordinated to a central iridium atom. One or more of the ligands have attached thereon, one or more polymerizable groups that are able to polymerize with other molecules to form intermolecular covalent bonds. In some cases, the organic layer may also comprise a dopant. Also provided are a method of making an organic light-emitting device, an iridium complex, and an organic-light emitting device using certain iridium complexes. | 09-11-2008 |
