Patent application number | Description | Published |
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 |
20130009138 | COMPOSITE MATERIAL, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, LIGHTING DEVICE, AND ORGANIC COMPOUND - A composite material including an organic compound and an inorganic compound, which has a high carrier-transport property; a composite material having an excellent property of carrier injection to an organic compound; a composite material in which light absorption due to charge transfer interaction is unlikely to occur; and a composite material having a high visible-light-transmitting property are provided. A composite material which includes an organic compound and an inorganic compound exhibiting an electron-accepting property with respect to the organic compound, in which the rings of the organic compound are all benzene rings and the number of the benzene rings of the organic compound is greater than or equal to 4 and less than or equal to 25, is provided. | 01-10-2013 |
20130048964 | Light-Emitting Element, Light-Emitting Device, Electronic Device, Lighting Device, and Novel Organic Compound - A light-emitting element includes an EL layer between a pair of electrodes. The EL layer contains a first compound and a second compound. The first compound is a phosphorescent iridium metal complex having a LUMO level of greater than or equal to −3.5 eV and less than or equal to −2.5 eV, and the second compound is an organic compound having a pyrimidine skeleton. The light-emitting element includes an EL layer between a pair of electrodes. The EL layer contains a first compound and a second compound. The first compound is a phosphorescent iridium metal complex having a diazine skeleton, and the second compound is an organic compound having a pyrimidine skeleton. | 02-28-2013 |
20130082591 | HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - To provide a novel heterocyclic compound that can be used as a host material in which a light-emitting substance of a light-emitting layer is dispersed. A heterocyclic compound comprising a dibenzo[f,h]quinoxaline ring and two hole-transport skeletons, where the dibenzo[f,h]quinoxaline ring and the two hole-transport skeletons are bonded to an aromatic hydrocarbon group. A heterocyclic compound represented by the following general formula (G1) is provided. | 04-04-2013 |
20130088144 | Phosphorescent Iridium Metal Complex, Light-Emitting Element, Light-Emitting Device, Electronic Appliance, and Lighting Device - Provided is a light-emitting element including a phosphorescent iridium metal complex that emits phosphorescence in a yellow green to orange wavelength range, and has high emission efficiency and reliability. Thus, further provided is the phosphorescent iridium metal complex that emits phosphorescence in the yellow green to orange wavelength range. Further provided are a light-emitting device, an electronic appliance, and a lighting device each of which includes the above light-emitting element. The light-emitting element includes an EL layer between a pair of electrodes, and the EL layer contains a phosphorescent iridium metal complex where nitrogen at the 3-position of a pyrimidine ring having an aryl group bonded to the 4-position is coordinated to a metal, a substituent having a carbazole skeleton is bonded to the 6-position of the pyrimidine ring, and the aryl group bonded to the 4-position of the pyrimidine ring is ortho-metalated by being bonded to the metal. | 04-11-2013 |
20130137866 | Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - As a novel substance having a novel skeleton, a novel organometallic complex that can emit phosphorescence in the green to red wavelength region and has high emission efficiency and a high yield of synthesis is provided. One embodiment of the present invention is an organometallic complex in which a diketone having a five-membered or six-membered alicyclic structure composed of carbon and hydrogen is a ligand. | 05-30-2013 |
20130165653 | Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - As a novel substance having a novel skeleton, an organometallic complex with high emission efficiency which achieves improved color purity by a reduction of half width of an emission spectrum is provided. One embodiment of the present invention is an organometallic complex in which a β-diketone and a six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom are ligands. In General Formula (G1), X represents a substituted or unsubstituted six-membered heteroaromatic ring including two or more nitrogen atoms inclusive of a nitrogen atom that is a coordinating atom. Further, R | 06-27-2013 |
20130240851 | LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains at least a phosphorescent compound, a first organic compound (host material) having an electron-transport property, and a second organic compound (assist material) having a hole-transport property. The light-emitting layer has a stacked-layer structure including a first light-emitting layer and a second light-emitting layer, and the first light-emitting layer contains a higher proportion of the second organic compound than the second light-emitting layer. In the light-emitting layer (the first light-emitting layer and the second light-emitting layer), a combination of the first organic compound and the second organic compound forms an exciplex. | 09-19-2013 |
20130256637 | Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Appliance, and Lighting Device - Provided is a light-emitting element with a small degree of luminance degradation with accumulation of driving time (a long-lifetime light-emitting element). Provided is a light-emitting element in which a light-emitting layer with an electron-transport property is formed with a plurality of layers containing different host materials. Further, the LUMO level of a host material on an anode side is higher than the LUMO level of a host material on a cathode side. With such a structure, it is possible to provide a long-lifetime light-emitting element with little degradation in luminance with accumulation of driving time. | 10-03-2013 |
20130270531 | LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A light-emitting layer, which is a stack of a first light-emitting layer and a second light-emitting layer, is provided between an anode and a cathode. The first light-emitting layer is formed on the anode side and contains a first light-emitting substance converting triplet excitation energy into light emission, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property. The second light-emitting layer contains a second light-emitting substance converting triplet excitation energy into light emission, the first organic compound, and a third organic compound having a hole-transport property. The second organic compound has a lower HOMO level than the third organic compound. The first light-emitting substance emits light with a wavelength shorter than that of light emitted from the second light-emitting substance. The first and the second organic compounds form an exciplex. The first and the third organic compounds form an exciplex. | 10-17-2013 |
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 |
20130277655 | Light-Emitting Element, Light-Emitting Device, Electronic Appliance, and Lighting Device - A light-emitting element which has low driving voltage and high emission efficiency is provided. The light-emitting element includes, between a pair of electrodes, a hole-transport layer and a light-emitting layer over the hole-transport layer. The light-emitting layer contains a first organic compound having an electron-transport property, a second organic compound having a hole-transport property, and a light-emitting third organic compound converting triplet excitation energy into light emission. A combination of the first organic compound and the second organic compound forms an exciplex. The hole-transport layer contains at least a fourth organic compound whose HOMO level is lower than or equal to that of the second organic compound and a fifth organic compound whose HOMO level is higher than that of the second organic compound. | 10-24-2013 |
20130277656 | Light-Emitting Element, Light-Emitting Device, Electronic Appliance, and Lighting Device - A light-emitting element which has low driving voltage and high emission efficiency is provided. The light-emitting element includes, between a pair of electrodes, a hole-transport layer and a light-emitting layer over the hole-transport layer. The light-emitting layer contains a first organic compound having an electron-transport property, a second organic compound having a hole-transport property, and a light-emitting third organic compound converting triplet excitation energy into light emission. A combination of the first organic compound and the second organic compound forms an exciplex. The hole-transport layer is formed using two or more kinds of organic compounds and contains at least the second organic compound. | 10-24-2013 |
20130281693 | Phosphorescent Organometallic Iridium Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - As a novel substance having a novel skeleton, provided is a novel phosphorescent organometallic iridium complex that can emit phosphorescence in a blue green to red wavelength region and has high emission efficiency. The phosphorescent organometallic iridium complex has a ligand having a pyridyl pyrimidine skeleton, i.e., the phosphorescent organometallic iridium complex has a ligand having a structure represented by the following general formula (G0). | 10-24-2013 |
20130292656 | LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A light-emitting layer, which is a stack of a first light-emitting layer and a second light-emitting layer, is provided between an anode and a cathode. The first light-emitting layer is formed on the anode side and contains a first light-emitting substance converting triplet excitation energy into light emission, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property. The second light-emitting layer contains a second light-emitting substance converting triplet excitation energy into light emission, the second organic compound, and a third organic compound having an electron-transport property. The first organic compound has a higher LUMO level than the third organic compound. The first light-emitting substance emits light with a wavelength shorter than that of light emitted from the second light-emitting substance. The first and the second organic compounds form an exciplex. The second and the third organic compounds form an exciplex. | 11-07-2013 |
20130324721 | Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - Provided are a light-emitting element including a novel organometallic complex as an emission center, the organometallic complex, a light-emitting device, an electronic device, and a lighting device each using the light-emitting element. One embodiment of the present invention is a light-emitting element including, as an emission center, an organometallic complex in which a benzofuropyrimidine derivative is coordinated to a metal. In particular, another embodiment is a light-emitting element including, as an emission center, an organometallic complex in which a benzofuropyrimidine derivative having an aryl group at the 4-position is coordinated to a metal. Another embodiment is a light-emitting element including, as an emission center, an organometallic complex in which nitrogen at the 3-position of a benzofuropyrimidine derivative having an aryl group at the 4-position is coordinated to a metal and the aryl group is bonded to the metal. | 12-05-2013 |
20130324729 | Method of Synthesizing Pyrazine Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A novel method in which a pyrazine derivative is synthesized without a synthetic pathway of a pyrazine halide derivative, which is a synthetic intermediate, whose pytazine skeleton is halogenated is provided. Furthermore, a light-emitting element, a light-emitting device, an electronic device, or a lighting device with high emission efficiency by using a pyrazine derivative obtained by the above synthesizing method as an EL material is provided. In the method, a pyrazine derivative is synthesized without a synthetic pathway of a pyrazine halide derivative, which is a synthetic intermediate, whose pytazine skeleton is halogenated. Specifically, a 2-arylpyrazine derivative having an aryl group or a heteroaryl group as a substituent is synthesized. | 12-05-2013 |
20140034927 | Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Appliance, and Lighting Device - A multicolor light-emitting element using fluorescence and phosphorescence, which has a small number of manufacturing steps owing to a relatively small number of layers to be formed and is advantageous for practical application can be provided. In addition, a multicolor light-emitting element using fluorescence and phosphorescence, which has favorable emission efficiency is provided. A light-emitting element which includes a light-emitting layer having a stacked-layer structure of a first light-emitting layer exhibiting light emission from a first exciplex and a second light-emitting layer exhibiting phosphorescence is provided. | 02-06-2014 |
20140034929 | Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A light-emitting element having a long lifetime is provided. A light-emitting element exhibiting high emission efficiency in a high luminance region is provided. A light-emitting element includes a light-emitting layer between a pair of electrodes. The light-emitting layer contains a first organic compound, a second organic compound, and a phosphorescent compound. The first organic compound is represented by a general formula (G0). The molecular weight of the first organic compound is greater than or equal to 500 and less than or equal to 2000. The second organic compound is a compound having an electron-transport property. In the general formula (G0), Ar | 02-06-2014 |
20140034930 | Light-Emitting Element - To provide a light-emitting element which uses a fluorescent material as a light-emitting substance and has higher luminous efficiency. To provide a light-emitting element which includes a mixture of a thermally activated delayed fluorescent substance and a fluorescent material. By making the emission spectrum of the thermally activated delayed fluorescent substance overlap with an absorption band on the longest wavelength side in absorption by the fluorescent material in an S | 02-06-2014 |
20140034931 | Light-Emitting Element, Light-Emitting Device, Electronic Device, Lighting Device, and Heterocyclic Compound - A light-emitting element with high heat resistance and high emission efficiency is provided. A novel heterocyclic compound that can be used in such a light-emitting element is provided. One embodiment of the present invention is a light-emitting element which includes, between a pair of electrodes, a layer containing a first organic compound, a second organic compound, and a light-emitting substance; the first organic compound includes one pyrimidine ring and one ring with a hole-transport skeleton; the second organic compound is an aromatic amine; and the light-emitting substance converts triplet excitation energy into light. A combination of the first organic compound, which includes the one pyrimidine ring and the one ring with the hole-transport skeleton, and the second organic compound, which is the aromatic amine, forms an exciplex. | 02-06-2014 |
20140034932 | Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - The light-emitting element has a structure in which a first organic compound and a second organic compound form an exciplex (excited complex) in a light-emitting layer. The S1 level and the T1 level of the formed exciplex are positioned extremely close to each other compared to the S1 level and the T1 level of the respective substances (the first organic compound and the second organic compound) before the formation of the exciplex. | 02-06-2014 |
20140061604 | LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A light-emitting element having high external quantum efficiency is provided. A light-emitting element having a long lifetime is provided. A light-emitting layer is provided between a pair of electrodes. The light-emitting layer is a stack of a first light-emitting layer, which contains a first phosphorescent compound, a first organic compound having an electron-transport property, and a second organic compound having a hole-transport property and is provided on the anode side, and a second light-emitting layer, which contains at least a second phosphorescent compound and the first organic compound having an electron-transport property. A combination of the first organic compound and the second organic compound forms an exciplex. | 03-06-2014 |
20140091293 | Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device - Provided is a light-emitting element in which an adverse effect by halides in an EL layer is suppressed and which can be provided with low cost. The light-emitting element including at least two layers between an anode and a light-emitting layer. One of the two layers which is closer to the anode has higher concentration of halides and halogen elements than the other layer closer to the light-emitting layer. | 04-03-2014 |
20140124764 | HETEROCYCLIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - To provide a novel heterocyclic compound capable of being used as a host material in which a light-emitting substance is dispersed. To provide a light-emitting element having a long lifetime. A heterocyclic compound in which a dibenzo[f,h]quinoxalinyl group and a benzo[b]naphtho[1,2-d]furanyl group are bonded through an arylene group having 6 to 13 carbon atoms. The dibenzo[f,h]quinoxalinyl group, the benzo[b]naphtho[1,2-d]furanyl group, and the arylene group separately are unsubstituted or have, as a substituent, an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 13 carbon atoms. | 05-08-2014 |
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 |
20140231770 | Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A novel substance capable of emitting phosphorescence is provided. An organometallic complex represented by General Fomulae (G3) or (G5). In the formulae, M represents iridium, platinum, palladium, or rhodium, R | 08-21-2014 |
20140246656 | Organometallic Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - As a novel substance having a novel skeleton, an organometallic complex having high emission efficiency and improved color purity is provided. The color purity is improved by reducing the half width of an emission spectrum. The organometallic complex is represented by General Formula (G1). In General Formula (G1), at least one of R | 09-04-2014 |
20140284578 | Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - An organic compound having a low HOMO level and a high hole-transport property is provided. The organic compound is represented by Formula (G1), where Ar | 09-25-2014 |
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 |
20140291645 | Light-Emitting Element, Compound, Organic Compound, Display Module, Lighting Module, Light-Emitting Device, Display Device, Lighting Device, and Electronic Device - A light-emitting element having high emission efficiency is provided. A light-emitting element having a low driving voltage is provided. A novel compound which can be used for a transport layer or as a host material or a light-emitting material of a light-emitting element is provided. A novel compound with a benzofuropyrimidine skeleton is provided. Also provided is a light-emitting element which includes the compound with the benzofuropyrimidine skeleton between a pair of electrodes. | 10-02-2014 |
20140319492 | Light-Emitting Element, Light-Emitting Device, Display Device, Electronic Device, and Lighting Device - Provided is a light-emitting element with high emission efficiency. The light-emitting element including a first electrode, a second electrode, and a layer containing an organic compound between the first electrode and the second electrode. The layer containing the organic compound includes a light-emitting layer at least containing a first organic compound, a second organic compound, and a fluorescent substance. The first organic compound has an electron-transport property. The second organic compound has a hole-transport property. The second organic compound has a triarylamine skeleton. At least one of three aryl groups in the triarylamine skeleton is a group including a p-biphenyl skeleton. | 10-30-2014 |
20140330017 | Heterocyclic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Lighting Device, and Electronic Device - Provided is a heterocyclic compound that can be used for a carrier-transport material, a host material, or a light-emitting material in a light-emitting element. The heterocyclic compound has an indolo[3,2,1-jk]carbazole skeleton and a dibenzo[f,h]quinoxaline skeleton which are linked to each other through an arylene group. The wide band gap of the heterocyclic compound allows excitation of a green-emissive phosphorescent material, which contributes to the formation of a highly efficient light-emitting element. | 11-06-2014 |
20140339526 | ORGANOMETALLIC COMPLEX, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC APPLIANCE, AND LIGHTING DEVICE - A light-emitting element including a phosphorescent organometallic complex is provided. The organometallic complex emits phosphorescence in the yellow green to orange wavelength range and has high emission efficiency and high reliability. Thus, the organometallic complex that exhibits phosphorescence is provided. The organometallic complex, in which nitrogen at the 3-position of a pyrimidine ring is coordinated to a metal, a carbazole skeleton is bonded to the 4-position of the pyrimidine ring, and the carbazole skeleton is bonded to the metal, is used as an emission center. The metal is preferably a Group 9 element or a Group 10 element, more preferably iridium. | 11-20-2014 |
20140367662 | Organometallic Iridium Complex, Light-Emitting Element, Light-Emitting Device, and Lighting Device - An organometallic iridium complex that has high emission efficiency and a long lifetime and emits deep red light (emission wavelength: around 700 nm) is provided. The organometallic iridium complex has a ligand that is represented by General Formula (G0) and has at least a dimethyl phenyl group and a quinoxaline skeleton. | 12-18-2014 |
20150060813 | Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A novel heterocyclic compound that can be used as a host material in which a light-emitting substance is dispersed. A light-emitting element having a long lifetime. A heterocyclic compound in which a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group is bonded to a substituted or unsubstituted arylene group having 6 to 25 carbon atoms which is bonded to any one of the 8-11 positions of a substituted or unsubstituted benzo[b]naphtho[1,2-d]furan skeleton. | 03-05-2015 |
20150060818 | Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - Provided is a novel organic compound that can be used as a host material of a light-emitting layer in which a light-emitting substance is dispersed. The organic compound is represented by General Formula (G1-1). In the formula, A represents a substituted or unsubstituted dibenzo[f,h]quinoxalin-yl group, Ar | 03-05-2015 |
20150060824 | Organic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - Provided is a novel organic compound that is used as a host material in which a light-emitting substance is dispersed. The organic compound is represented by General Formula (G1). In the formula, A represents a substituted or unsubstituted dibenzofuran-diyl group, a substituted or unsubstituted dibenzothiophene-diyl group, a substituted or unsubstituted N-aryl-9H-carbazole-diyl group, or a substituted or unsubstituted N-alkyl-9H-carbazole-diyl group; Ar | 03-05-2015 |
20150073144 | Phosphorescent Organometallic Iridium Complex, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - As a novel substance having a novel skeleton, provided is a novel phosphorescent organometallic iridium complex that can emit phosphorescence in a blue green to red wavelength region and has high emission efficiency. The phosphorescent organometallic iridium complex has a ligand having a pyridyl pyrimidine skeleton, i.e., the phosphorescent organometallic iridium complex has a ligand having a structure represented by the following general formula (G0). | 03-12-2015 |
20150073147 | Organic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Electronic Appliance, and Lighting Device - A novel organic compound is provided. In addition, a novel organic compound with high heat resistance is provided. In the organic compound, a dibenzoquinoxaline skeleton and a 4,4-bidibenzofuran skeleton or a 4,4′-bidibezothiophene skeleton are connected to each other through an arylene group. | 03-12-2015 |