Patent application number | Description | Published |
20130292663 | COMPOUND HAVING SUBSTITUTED BIPYRIDYL GROUP AND PYRIDOINODOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - To provide an organic compound of excellent characteristics that exhibits excellent electron-injecting/transporting performance with hole blocking ability, and has high stability in the thin-film state, as material for an organic electroluminescent device having high efficiency and high durability, and to provide the organic electroluminescent device having high efficiency and high durability using the compound. An organic electroluminescent device includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes, wherein the compound of general formula (1) in which a substituted bipyridyl group and a pyridoindole ring structure are bonded via a phenylene group, is used as a constituent material of at least one organic layer. | 11-07-2013 |
20130328040 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic electroluminescent device comprising, between an anode and a cathode, a hole-transporting layer, a luminous layer and an electron-transporting layer, wherein the hole-transporting layer contains an arylamine compound (X) having a molecular structure to which three or more triphenylamine skeletons are singly bonded or bonded through a divalent hydrocarbon group and an arylamine compound (Y) having a molecular structure to which two triphenylamine skeletons are singly bonded or bonded through the divalent hydrocarbon group. The device excels in hole and electron injection/transport property, stability and durability in the form of thin films, and is highly efficient, becomes luminous on a low driving voltage, and has a long life. | 12-12-2013 |
20140124756 | COMPOUND HAVING AN INDOLOCARBAZOLE RING STRUCTURE AND ORGANIC ELECTROLUMINESCENT DEVICE - A compound having an indolocarbazole ring structure is represented by the following general formula (1), and is used as a material for forming a highly efficient and highly durable organic electroluminescent device. The compound features excellent hole injection/transport capability, has electron blocking power and is highly stable in the form of a thin film. | 05-08-2014 |
20140374721 | NOVEL BENZOTRIAZOLE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICES USING THE DERIVATIVES - Benzotriazole derivatives represented by the following general formula (1), | 12-25-2014 |
20150034924 | NOVEL TRIPHENYLENE DERIVATIVES AND ORGANIC ELECTROLUMINESCENT DEVICES USING SAID DERIVATIVES - Triphenylene derivatives represented by the following general formula ( | 02-05-2015 |
20150060803 | COMPOUND HAVING ACRIDAN RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound with characteristics excelling in hole-injecting/transporting performance and having an electron blocking ability, a highly stable thin-film state, and excellent heat resistance is provided as material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high efficiency and high durability is provided using this compound. The compound of a general formula (Chemical Formula 1) having an acridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes. | 03-05-2015 |
20150249218 | COMPOUND HAVING INDENOACRIDAN RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - An organic compound with excellent characteristics excelling in hole injecting and transporting performance and having an electron-blocking ability, high stability in a thin film state and excellent heat resistance is provided as a material for an organic electroluminescent device of high efficiency and high durability, and the organic electroluminescent device of high luminous efficiency and high durability is provided using this compound. The compound of a general formula (1) having an indenoacridan ring structure is used as a constituent material of at least one organic layer in the organic electroluminescent device that includes a pair of electrodes and one or more organic layers sandwiched between the pair of electrodes. | 09-03-2015 |
20150287920 | ORGANIC ELECTROLUMINESCENT DEVICE - An organic electroluminescent device having a capping layer composed of material having a high refractive index that involves only small differences in refractive indices measured in the blue, green, and red wavelength regions, excelling in thin film stability and durability and having no absorption in the respective wavelength ranges of blue, green, and red is provided to improve device characteristics of the organic electroluminescent device, particularly to greatly improve the coupling-out efficiency. | 10-08-2015 |