Patent application number | Description | Published |
20110095678 | FLUORENE DERIVATIVE, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - An object is to provide a new fluorene derivative as a good light-emitting material for organic EL elements. A fluorene derivative represented by General Formula (G1) is provided. | 04-28-2011 |
20110248246 | AROMATIC AMINE DERIVATIVE, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - Provided is a novel aromatic amine derivative represented by General Formula (G1) below. (In the formula, A represents oxygen or sulfur, and R | 10-13-2011 |
20120241727 | COMPOSITE MATERIAL, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A composite material which includes an organic compound and an inorganic compound and has a high carrier-transport property is provided. A composite material having a good property of carrier injection into an organic compound is provided. A composite material in which light absorption due to charge-transfer interaction is unlikely to occur is provided. A composite material having a high visible-light-transmitting property is provided. A composite material including a hydrocarbon compound and an inorganic compound exhibiting an electron-accepting property with respect to the hydrocarbon compound is provided. The hydrocarbon compound has a substituent bonded to a naphthalene skeleton, a phenanthrene skeleton, or a triphenylene skeleton and has a molecular weight of 350 to 2000, and the substituent has one or more rings selected from a benzene ring, a naphthalene ring, a phenanthrene ring, and a triphenylene ring. | 09-27-2012 |
20120289708 | Carbazole Compound, Light-Emitting Element Material, and Organic Semiconductor Material - A novel carbazole compound that can be used for a transport layer, a host material, or a light-emitting material in a light-emitting element. In the carbazole compound, two carbazole skeletons each include carbazole, the 3-position of which is bonded to the 4-position of a dibenzofuran skeleton or a dibenzothiophene skeleton and these two carbazole skeletons are linked via benzene or biphenyl. The carbazole compound has an excellent carrier-transport property and a wide energy gap and can be suitably used for a material in a light-emitting element or for an organic semiconductor material. | 11-15-2012 |
20130009543 | HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - Provided is a novel heterocyclic compound which can be used as a host material for dispersing a light-emitting material in a light-emitting layer of a light-emitting element. Further provided is a light-emitting element which is driven at a low voltage and has high current efficiency. By including the light-emitting element, a light-emitting device, an electronic device, and a lighting device each with reduced power consumption are provided. The light-emitting element contains a compound in which a dibenzo[f,h]quinoline ring and a hole-transport skeleton are bonded through an arylene group. The light-emitting device, the electronic device, and the lighting device each including the light-emitting element are provided. The light-emitting element contains a heterocyclic compound having a structure represented by the following general formula (G1). | 01-10-2013 |
20130060033 | LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, LIGHTING DEVICE, AND HETEROCYCLIC COMPOUND - Provided is a novel heterocyclic compound which has excellent heat resistance and can be used as a host material for a light-emitting substance (a substance emitting fluorescence or a substance emitting phosphorescence). A light-emitting element includes a heterocyclic compound which includes one dibenzo[f,h]quinoxaline ring, one ring having a hole-transport skeleton, and two to eight benzene rings. Note that in the above structure, the molecular weight of the heterocyclic compound is greater than or equal to 564 and less than or equal to 1000. | 03-07-2013 |
20130277653 | Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A novel organic compound with which the emission characteristics, emission efficiency, and reliability of a light-emitting element can be improved; a light-emitting element including the organic compound; and a light-emitting device, an electronic device, and a lighting device each including the light-emitting element. The light-emitting element includes a hole-transport layer and a light-emitting layer between a pair of electrodes. At least one of the hole-transport layer and the light-emitting layer includes an organic compound having a skeleton represented by General Formula (G0). | 10-24-2013 |
20140131686 | Light-Emitting Element, Light-Emitting Device, Lighting Device, and Electronic Device - To provide a light-emitting element including a novel compound, which is capable of being used for a transport layer, a host material, or a light-emitting material in a light-emitting element. A light-emitting element which includes an EL layer between a pair of electrodes. In an analysis of the EL layer by liquid chromatography mass spectrometry, an ion having a mass/charge ratio (m/z) of 772 is detected, and by collision of an argon gas with the ion at an energy greater than or equal to 30 eV and less than or equal to 100 eV, one or more of an ion having a mass/charge ratio (m/z) of 349 and an ion having a mass/charge ratio (m/z) of 425 is or are detected. | 05-15-2014 |
20140131697 | FLUORENE DERIVATIVE, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - An object is to provide a new fluorene derivative as a good light-emitting material for organic EL elements. A fluorene derivative represented by General Formula (G1) is provided. | 05-15-2014 |
20140183503 | Light-Emitting Element, Light-Emitting Device, Electronic Appliance, and Lighting Device - Disclosed is a light-emitting element having high emission efficiency, capable of driving at low voltage, and showing a long lifetime. The light-emitting element contains a compound between a pair of electrodes, and the compound is configured to give a first peak of m/z around 202 and a second peak of m/z around 227 in a mass spectrum. The first and second peaks are product ions of the compound and possess compositions of C | 07-03-2014 |
20140291643 | Organic Compound, Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device - A novel organic compound that forms an exciplex emitting light with high efficiency is provided. An organic compound with a triarylamine skeleton in which the three aryl groups of the triarylamine skeleton are a p-biphenyl group, a fluoren-2-yl group, and a phenyl group to which a dibenzofuranyl group or a dibenzothiophenyl group is bonded. By the use of the organic compound and an organic compound with an electron-transport property, an exciplex that emits light with extremely high efficiency can be formed. | 10-02-2014 |
20140377644 | NONAQUEOUS SOLVENT, NONAQUEOUS ELECTROLYTE, AND POWER STORAGE DEVICE - A nonaqueous solvent that includes an ionic liquid and has at least one of the following characteristics: high lithium ion conductivity, high lithium ion conductivity in a low temperature environment, high heat resistance, a wide available temperature range, a low freezing point (melting point), low viscosity, and the like. The nonaqueous solvent includes an ionic liquid and a fluorinated solvent. The ionic liquid contains an alicyclic quaternary ammonium cation which has a substituent and a counter anion to the alicyclic quaternary ammonium cation which has the substituent. | 12-25-2014 |