"The production of too many useful things results in too many useless people."
Karl Marx
Make the Most of Our Site
See this month's Top Inventors and Most Cited Patents.
Stay on top of the latest innovations by subscribing to an RSS feed.
Registered users: Manage your profile.
| Number | Title | Issue Date |
| 7442449 | Organic electroluminescence device The present invention provides an organic electroluminescence device, by which high brightness is provided in a manner of forming a hole injection or transport layer using a material that lowers an energy barrier. The present invention includes an organic emitting l... | 10/28/2008 |
| 7442447 | Binaphthol based chromophores for the fabrication of blue organic light emitting diodes A blue electroluminescent material based on a binaphtyl compound of the general formula (I). Particular embodiments having the general formula have good solubilities in common organic solvents, resist crystallization and can be sublimed in a device fabrication proce... | 10/28/2008 |
| 7442448 | Phenyl pyridine-iridium metal complex compounds for organic electroluminescent device and organic electroluminescent device using thereof The present invention relates to emitting compounds for organic electroluminescent device, particularly to phenyl pyridine-iridium metal complex compounds represented by the following formula (1): w... | 10/28/2008 |
| 7442428 | Gas barrier substrate The main object of the present invention is to provide a gas barrier substrate having a high gas barrier property without a ruggedness, a pin hole or the like in the gas barrier layer. The present invention solves the problem by providing a gas barrier substrate hav... | 10/28/2008 |
| 7442446 | Aluminum nitride passivated phosphors for electroluminescent displays A novel structure is provided to improve the luminance and operating stability of phosphors used in ac thick film dielectric electroluminescent displays. The novel structure comprises aluminum nitride barrier layers in contact with the phosphor films to prevent phos... | 10/28/2008 |
| 7439669 | Light emitting material, method of manufacturing the light emitting material and method of manufacturing light emitting layer An organic EL device with a voltage applied across an anode and a cathode so that holes are moved in a hole transport layer and electrons are moved in an electron transport layer, and the holes and the electrons are recombined in a light emitting layer to emit light... | 10/21/2008 |
| 7438981 | Indenofluorene compounds and organic electroluminescent devices using the same An organic electroluminescent material and a device using the same wherein the electroluminescent material is a charge transport indenofluorene selected from one of Formula (I) and Formula (II) wher... | 10/21/2008 |
| 7439671 | Organic electroluminescent panel An organic electroluminescent element formed on a substrate has a layer structure in which organic layer including an organic electroluminescent layer is sandwiched between a pair of electrodes. A film formation region of an emission layer which is made of a uniform... | 10/21/2008 |
| 7436115 | Electroluminescent device The present invention discloses a method for fabricating an electroluminescent lamp that includes a step in which an electroluminescent active layer is formed by curing a UV curable electroluminescent composition. Embodiments of the method of the present invention i... | 10/14/2008 |
| 7432649 | Coupled waveguides for light extraction A light source includes a first waveguide. The first waveguide includes a light emitting material having a first index of refraction and at least one layer is disposed over the light emitting material. The at least one layer has a second index of refraction and the ... | 10/07/2008 |
| 7431996 | Polyester resin, functional device and organic electroluminescent device using polyester resin, and method of manufacturing organic electroluminescent device The present invention relates to a polyester resin including at least one repeating unit represented by the following formula (1): wherein Ar1, Ar2 and Ar3 independe... | 10/07/2008 |
| 7431626 | High efficiency organic electroluminescent display and method for fabricating the same An organic electroluminescent display has: anode electrodes of R, G and B unit pixels formed separate from each other on a substrate; organic thin-film layers of the R, G and B unit pixels formed on the anode electrodes; and a cathode electrode formed over an entire... | 10/07/2008 |
| 7431997 | Phenylcarbazole compounds and organic electroluminescence devices using the same A phenylcarbazole compound of formula (1) below is provided, where each of R1 and R2 is independently a monosubstituted or polysubstituted functional group selected from the group consisting of hydroge... | 10/07/2008 |
| 7429062 | Anti-counterfeiting see-through moire security feature using frequency-varying patterns Frequency varying patterns are aligned on the front and back surfaces of a document to provide an anti-counterfeiting security device. The frequency varying patterns are reversed images. The document is sufficiently transparent to allow see-through of the pattern on... | 09/30/2008 |
| 7429425 | Oligoarylene derivatives and organic electroluminescent devices made by using the same There are provided oligoarylene derivatives capable of emitting blue light at high luminous efficiency which are represented by the following general formulae (1) to (4): Ar1-Ch-Ar2 (1) Ch1-L-Ch2 ... | 09/30/2008 |
| 7429426 | Organometallic compounds for use in electroluminescent devices An organic light emitting device is provided. The device has an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprising an emissive material having the structure: ... | 09/30/2008 |
| 7429822 | Organic electroluminescence device having a cathode with a metal layer that includes a first metal and a low work function metal An organic EL device includes an anode, a cathode having optical transparency, and an organic EL layer disposed between the anode and the cathode and including at least a fluorescent layer. The cathode has a metal layer including a first metal and a low work functio... | 09/30/2008 |
| 7427367 | Barium thioaluminate phosphor materials with novel crystal structures The present invention provides thioaluminate phosphor compounds BaAl2S4 and BaAl4S7 with novel crystal structures that have higher luminosity and improved color coordinates. The invention is also directed to rare earth ele... | 09/23/2008 |
| 7427445 | Compound capable of being used in organic layer of organic light emitting device Disclosed is a compound represented by the following formula 1 as a light emitting material: wherein each of R0, R1 and R2 is the same as defined herein. An organic light emitting device including a first electro... | 09/23/2008 |
| 7427441 | Transparent polymeric coated conductor A member comprising a substrate and a transparent conductive layer comprising a composition including an electronically conductive polymer of a polythiophene present in a cationic form with a polyanion, wherein the composition of the conductive layer has an FOM less... | 09/23/2008 |
| 7425654 | Aromatic triamine compound and organic electroluminescence device using the same Provided are an aromatic triamine compound of a specific structure having at least one terphenyl structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers having at least a luminescent layer is... | 09/16/2008 |
| 7425375 | Organic EL element and organic EL display An organic EL element of the present invention comprises a substrate, an electrode layer, an organic layer, and an electrode layer, whereas the organic layer 3 contains a vinyl polymer obtained by polymerizing a polymerizable monomer containing a compound rep... | 09/16/2008 |
| 7422799 | Light emitting device To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing a hole transport layer, a light emitting layer, and an ... | 09/09/2008 |
| 7422800 | Light emitting device To provide an organic electroluminescent device having excellent durability and having high luminous efficiency and luminance, the organic electroluminescent device includes an organic compound layer containing at least one light emitting layer, wherein the light em... | 09/09/2008 |
| 7423375 | Encapsulation for electroluminescent devices An electroluminescent device having a protection layer in the cap bonding region to which the cap is bonded. The protection layer can be formed from photosensitive or non-photosensitive materials. The protection layer protects the layers below from being damage duri... | 09/09/2008 |
| 7422802 | Luminescent material and organic electroluminescent device using the same Disclosed herein are a luminescent material represented by Chemical Formula 1 and an organic electroluminescent device using the same. ... | 09/09/2008 |
| 7420058 | Compound for molecular electronic device having thiol anchoring group, method of synthesizing the compound, and molecular electronic device having molecular active layer obtained from the compound Provided are a compound for a molecular electronic device which includes a terpyridine-ruthenium organic metal compound including a thiol anchoring group of the formula below, a method of synthesizing the compound and a molecular electronic device including a molecu... | 09/02/2008 |
| 7419728 | Light-emitting device containing bis-phosphineoxide compound An OLED device comprises an anode and a cathode and having therebetween a light emitting layer containing an emissive material, wherein a layer between the anode and cathode contains a phosphineoxide compound bearing two or more tri(hetero)arylphosphineoxide groups,... | 09/02/2008 |
| 7419727 | Organic electroluminescent device This invention has an objective to improve durability at elevated temperature in organic electroluminescent devices using coumarin derivatives as dopant in a luminescent layer. This invention attains the above objective by providing in the organic electroluminescent... | 09/02/2008 |
| 7417368 | Color electroluminescent displays with thick film dielectric layer between electrodes The present invention is directed to color electroluminescent displays comprising a novel sub-pixel structure and method for making the same. The sub-pixel structure has an electroluminescent phosphor, which emits blue light, and a photoluminescent phosphor, which e... | 08/26/2008 |
| 7416792 | Full color organic electroluminescence display devices by thermal patterning using laser and method for manufacturing the same An organic electroluminescence display device made by a laser induced thermal imaging process has a substrate having first and second electrode layers, and an organic layer having red, green, and blue light-emitting layers between the electrode layers. Thermosetting... | 08/26/2008 |
| 7416791 | Osmium complexes and related organic light-emitting devices Osmium complexes having the formula [Os(II) (N—N)2L—L]2+ 2A− (or A2−), or [Os(II) N—N(L—L)2]2+ 2A− (or A2−), where N—N is a bipyridine or phenanthroline ligand,... | 08/26/2008 |
| 7413818 | Light-emitting device There is provided an organic light-emitting device obtained by using a specific copper coordination compound as a light-emitting material, which has a basic structure in which two copper ions are crosslinked in a ring form by one of atomic groups containing a haloge... | 08/19/2008 |
| 7413816 | Organic metallic complex and electroluminescent element using the same A white or whitish luminescent material for phosphorescence is provided by synthesizing an organometallic complex that is able to convert a triplet excited state into light emission. In particular, a white electroluminescent device that has a high luminous efficienc... | 08/19/2008 |
| 7413817 | 4,4′-Bis(carbazol-9-yl)-biphenyl based silicone compound and organic electroluminescent device using the same A 4,4′-Bis(carbazol-9-yl)-biphenyl (CBP) based silicone compound and an organic electroluminescent device using the CBP based silicon compound have excellent blue light emission characteristics and hole transfer capability. The CBP based silicon compound may be us... | 08/19/2008 |
| 7411343 | Inorganic electroluminescent device An electroluminescent device is provided. The device has a stacked structure in which an electric field enhancing layer is present between a dielectric layer, which contacts an inorganic light-emitting layer, and an electrode. In the device, electrons are additional... | 08/12/2008 |
| 7407716 | Light emitting devices with multiple light emitting layers to achieve broad spectrum What is disclosed is an organic electroluminescent device which produces a white output spectrum. A plurality of emissive layers, each emitting in a particular spectrum, are fabricated together in one device by choosing materials with solubility properties that do n... | 08/05/2008 |
| 7402344 | Organic electroluminescent devices and aminostyrylnaphthalene compounds An organic electroluminescent device includes an anode, a cathode, and an organic layer having a light-emitting area and arranged between the anode and the cathode. The organic layer contains in at least a part thereof at least one aminostyrylnaphthalene compound re... | 07/22/2008 |
| 7402343 | Molecular chemical compounds with structures allowing electron displacement and capable of emitting photoluminescent radiation, and photoluminescence quenching device employing the same A chemical compound which has an electron donor group, an electron acceptor group, and a conjugated bridging element bridging between the electron donor group and the electron acceptor group. The chemical compound has a readily displaceable electron, is capable of e... | 07/22/2008 |
| 7402346 | Organic electroluminescent devices An organic electroluminescent device comprising an anode, an electroluminescent region, and a cathode. The luminescent region comprises a light-emitting material of Formula I wherein R1 is independently selected ... | 07/22/2008 |