- PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES HAVING A HOLE TRANSPORTING COHOST MATERIAL IN THE EMISSIVE REGION
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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 R1, R2, R3, R4, R5, and R6 may be the same or different fluorine atom, chlorine atom, a deuterium atom, a cyano group, a trifluoromethyl group, a nitro group, linear or branched alkyl group (C1-C6), cyclo-alkyl group (C5-C10), linear or branched alkoxy group (C1-C6), cyclo-alkoxy group (C5~C10), substituted or unsubstituted aromatic hydrocarbon group, substituted or unsubstituted aromatic heterocyclic group, substituted or unsubstituted condensed polycyclic aromatic group, r1, r4, r5 = 0, 1, 2, 3, or 4, r2, r3, r6; = 0, 1, 2 or 3, n = 0 or 1, and Ar1, Ar2, and Ar3 may be the same or different, substituted or unsubstituted aromatic hydrocarbon group, substituted or unsubstituted aromatic heterocyclic group, substituted or unsubstituted condensed polycyclic aromatic group, deuterium substituted aromatic hydrocarbon group, deuterium substituted aromatic heterocyclic group, or deuterium substituted condensed polycyclic aromatic group.
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Paragraph 0046
(2019/10/08)
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- TRIAZINE-SUBSTITUTED INDOLOCARBAZOLE DERIVATIVE, ALCOHOL INSOLUBLE COATING FILM FOR FORMING ORGANIC ELECTRONIC DEVICE MADE OF THE SAME, AND ORGANIC ELECTRONIC DEVICE USING THE SAME
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PROBLEM TO BE SOLVED: To provide a new compound capable of forming a laminated structure insoluble to an alcohol solvent and also functionally separated by a coating method, concretely, a new compound as a phosphorescence holst material combining the excitation energy in a high triplet state of a luminescent layer capable of lamination without dissolving a hole transport layer as the lower layer and an electron transport layer as the upper layer and charge injection-transport, and an organic electronic device using the new compound. SOLUTION: Provided is a triazine-substituted indrocarbazole derivative represented by formula (1). SELECTED DRAWING: None COPYRIGHT: (C)2017,JPOandINPIT
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- COMPOUND, LIGHT-EMITTING ELEMENT, DISPLAY DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE
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Provided is a novel compound or a light-emitting element with high emission efficiency. The provided novel compound includes a bicarbazole skeleton and a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton. The provided light-emitting element includes the compound.
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Paragraph 0718; 0719
(2017/03/21)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE CONTAINING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device containing the same. By using the organic electroluminescent compound according to the present invention, an organic electroluminescent device can have high luminescent efficiency, a long lifespan, and high current efficiency.
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Paragraph 137; 143; 144
(2014/05/07)
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE CONTAINING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device comprising the same. The organic electroluminescent compound shows high luminous efficiency as a red-emitting material compared to conventional compounds. Further, the excellent luminous efficiency and improved power efficiency of an organic electroluminescent device can be achieved without a hole blocking layer when the organic electroluminescent compound is used as a host material.
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- NOVEL ORGANIC ELECTROLUMINESCENT COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel organic electroluminescent compound and an organic electroluminescent device using the same. Said organic luminescent compound provides an organic electroluminescent device which has high luminous efficiency and a long operation lifetime and requires a low driving voltage improving power efficiency and power consumption.
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- NOVEL COMPOUNDS FOR ORGANIC ELECTRONIC MATERIAL AND ORGANIC ELECTROLUMINESCENT DEVICE USING THE SAME
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The present invention relates to a novel compound and an organic electroluminescent device containing the same. The compound according to the present invention has an advantage in manufacturing an organic electroluminescent device which has high luminous efficiency and a long operation lifetime.
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