Patent application number | Description | Published |
20130075715 | 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 a substituted 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. | 03-28-2013 |
20130112950 | COMPOUND HAVING CARBAZOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT DEVICE - There is provided an organic compound of excellent characteristics that exhibits excellent hole-injecting/transporting performance and has high triplet exciton confining capability with an electron blocking ability, and that has high stability in the thin-film state and high luminous efficiency. The compound is used to provide a high-efficiency, high-durability organic electroluminescent device, particularly a phosphorescent organic electroluminescent device. The present invention is a compound of the following general formula having a carbazole ring structure. The compound is used as a constituent material of at least one organic layer in an organic electroluminescent device that includes a pair of electrodes, and one or more organic layers sandwiched between the pair of electrodes. | 05-09-2013 |
20130328041 | COMPOUNDS HAVING BIPYRIDYL GROUP AND CARBAZOLE RING, AND ORGANIC ELECTROLUMINESCENT ELEMENT - The present invention relates to a compound having a bipyridyl group and a carbazole ring, which is represented by the following general formula (1); and an organic electroluminescent element containing a pair of electrodes and at least one organic layer interposed therebetween, in which the compound is used as a constituent material of the at least one organic layer: | 12-12-2013 |
20140042425 | 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 a substituted 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. | 02-13-2014 |
20140339518 | PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES COMBINED WITH HOLE TRANSPORT MATERIAL HAVING HIGH OPERATING STABILITY - An improved OLED includes an emitter layer disposed between a cathode and an anode where the emitter layer includes a host material and a phosphorescent emitter material. A first hole transport layer is disposed between the emitter layer and the anode and a second hole transport layer is disposed between the first hole transport layer and the anode. The first hole transport layer includes a first hole transport material that is a carbazole type compound and the second hole transport layer includes a second hole transport material that is different from the first hole transport material. The phosphorescent emitter material includes a phosphorescent organometallic compound that is a heteroleptic compound represented by the formula L | 11-20-2014 |
20140374728 | PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES HAVING A HOLE TRANSPORTING COHOST MATERIAL IN THE EMISSIVE REGION - An improved OLED includes an emissive layer disposed between a cathode and an anode where the emissive layer includes a multi-component host material and a phosphorescent emitter material. The host material includes at least a first host compound and a second host compound, where the first host compound is hole-transporting host compound having the general formula wherein R | 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 |
20150048351 | 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. | 02-19-2015 |
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 |