Patent application number | Description | Published |
20080241591 | ORGANIC ELECTROLUMINESCENCE DEVICE AND PHENYLENEDIAMINE DERIVATIVE - The invention is to provide an organic EL device having a long life time that can reduce the driving voltage of the organic EL device, and to provide a material having a small ionization potential and exhibiting a large hole mobility by using as a layer or a zone. The organic electroluminescence device comprises a pair of electrodes and an organic light emitting layer sandwiched in the electrodes, characterized in that a hole transporting zone provided between the electrodes comprises the phenylenediamine derivative represented by the specific structural formulae, and the phenylenediamine derivative has a hole mobility of 10 | 10-02-2008 |
20080258613 | ORGANIC ELECTROLUMINESCENCE DEVICE - An electroluminescence device including an anode, a cathode, and an emitting layer interposed between the anode and the cathode, in which the emitting layer contains a host, a first dopant, and a second dopant, a luminous intensity of the first dopant is twelve times as great as a luminous intensity of the second dopant or greater, a content of the second dopant is 0.001% by mass to 0.5% by mass, and the emitting layer is formed by a coating process. | 10-23-2008 |
20080303433 | FLUORENE-BASED DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE EMPLOYING THE SAME - A fluorene-based derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is sandwiched between a cathode and an anode, wherein at least one layer of the organic thin film layers described above comprises the above fluorene-based derivative having a specific structure in the form of a single component or a mixed component. The organic electroluminescence device has a high luminous efficiency, and the fluorene-based derivative materializes the same. | 12-11-2008 |
20080309223 | SPUTTERING TARGET, SINTERED ARTICLE, CONDUCTIVE FILM FABRICATED BY UTILIZING THE SAME, ORGANIC EL DEVICE, AND SUBSTRATE FOR USE THEREIN - A sintered article is fabricated which contains one or more of indium oxide, zinc oxide, and tin oxide as a component thereof and contains any one or more types of metal out of hafnium oxide, tantalum oxide, lanthanide oxide, and bismuth oxide. A backing plate is attached to this sintered article to constitute a sputtering target. This sputtering target is used to fabricate a conductive film on a predetermined substrate by sputtering. This conductive film achieves a large work function while maintaining as much transparency as heretofore. This conductive film can be used to achieve an EL device or the like of improved hole injection efficiency. | 12-18-2008 |
20090167156 | ORGANIC ELECTROLUMINESCENCE DEVICE - In an organic electroluminescence device including a hole injecting layer, an emitting layer, an electron transporting layer and a cathode, the hole injecting layer contains poly(alkylene dioxythiophene) and at least one type of fluorine-containing colloid-forming polymer acids. The electron transporting layer contains a nitrogen-containing heterocycle derivative represented by a formula (1) below. | 07-02-2009 |
20100200848 | ORGANIC ELECTROLUMINESCENT DEVICE WITH CARRIER BLOCKING LAYER INTERPOSED BETWEEN TWO EMITTING LAYERS - An organic electroluminescent device including in sequence an anode, a first emitting layer ( | 08-12-2010 |
20100277063 | FLUORENE-BASED DERIVATIVE AND ORGANIC ELECTROLUMINESCENCE DEVICE EMPLOYING THE SAME - A fluorene-based derivative having a specific structure and an organic electro-luminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is sandwiched between a cathode and an anode, wherein at least one layer of the organic thin film layers described above comprises the above fluorene-based derivative having a specific structure in the form of a single component or a mixed component. The organic electroluminescence device has a high luminous efficiency, and the fluorene-based derivative materializes the same. | 11-04-2010 |
Patent application number | Description | Published |
20080246391 | Organic Electroluminescent Device and Display - An organic electroluminescent device including at least an anode, a first emitting layer, a hole barrier layer, a second emitting layer and a cathode in this order. The first emitting layer and the second emitting layer both include a hole transporting material. The organic EL device is small in chromaticity change and has high efficiency. | 10-09-2008 |
20080303417 | Aromatic Amine Derivative and Organic Electroluminescent Device Using Same - Disclosed is an organic electroluminescence device in which an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules of the organic electroluminescence device. This organic electroluminescence device has a long life. | 12-11-2008 |
20090009073 | 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): | 01-08-2009 |
20090009074 | 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): | 01-08-2009 |
20090021160 | MATERIAL FOR ORGANIC ELECTROLUMINESCENT DEVICE, METHOD FOR PRODUCING SAME AND ORGANIC ELECTROLUMINESCENT DEVICE - A material for an organic electroluminescence device which can be a cis-isomer or a trans-isomer of structural isomers, the content of the trans-isomer being more than that of the cis-isomer. The ratio (t/c) of the trans-isomer (t) and the cis-isomer (c) is preferably 2 or more. | 01-22-2009 |
20100141119 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT ELEMENT EMPLOYING THE SAME - An aromatic amine derivative having a specific structure having m-terphenyl group and an organic electroluminescence device comprising a cathode, an anode and an organic thin film layer which is disposed between the cathode and the anode and comprises at least one layer comprising at least a light emitting layer, wherein at least one layer in the organic thin film layer comprises the aromatic amine derivative singly or as a component of a mixture. The organic electroluminescence device has a long life. | 06-10-2010 |
20120112176 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME - Disclosed is an organic electroluminescence device in which an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescence device. This organic electroluminescence device has a long life. | 05-10-2012 |
20120184776 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME - Disclosed is an organic electroluminescence device in which an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized thereby improving the production yield of the organic electroluminescence device. This organic electroluminescence device has a long life. | 07-19-2012 |
20120228594 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME - Disclosed is an organic electroluminescence device in which an organic thin film which is composed of one or more layers including at least a light-emitting layer is interposed between a cathode and an anode. Since at least one layer of the organic thin film contains a novel aromatic amine derivative, which has an asymmetric structure wherein two different amine units are bonded through a linking group, by itself or as a component of a mixture, molecules are hardly crystallized, thereby improving the production yield of the organic electroluminescence device. This organic electroluminescence device has a long life. | 09-13-2012 |
20120302793 | AROMATIC AMINE DERIVATIVE AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME - A process for producing an amine compound, by reacting a halogenated aryl compound with an amine intermediate of formula (1): | 11-29-2012 |
20140077200 | AROMATIC AMINE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICE USING SAME - The present invention provides a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer, particularly a hole injecting layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Use of the aromatic amine derivative described above materialize an organic electroluminescence device which reduces an operating voltage and makes molecules less liable to be crystallized and which enhances a yield in producing the organic EL device and has a long lifetime. | 03-20-2014 |