摘要:
An organic electroluminescence device having excellent life characteristics and high reliability and a display apparatus using such a device are provided. In the organic electroluminescence device having organic thin film layers provided between a lower electrode and an upper electrode and including at least a luminescent layer, any one of the organic thin film layers (particularly, the luminescent layer) contains a styrylamine derivative represented by the general formula shown below.
摘要:
An organic electroluminescent device capable of blue emission with a high color purity, and a display unit capable of full-color display with high color expressivity by using the organic electroluminescent device are provided. The organic electroluminescent device includes at least a hole transportation layer and a luminescent layer held between a lower electrode to become an anode and an upper electrode to become a cathode in a state of lamination in that order from the anode side. The luminescent layer is made of a spiro compound, and the hole transportation layer is made of triphenylamine tetramer. Furthermore, the display unit includes organic electroluminescent devices as blue-emitting elements arrayed for a plurality of pixels.
摘要:
A diphosphonic acid ester of formula [VII] or [VII′] and a diphosphonium salt of formula [VIII] or [VIII′] are provided: wherein R75, R76, R75′ and R76′ may be the same or different and independently represent an alkyl or alkenyl group having from 1 to 4 carbon atoms, a cyclohexyl group or a phenyl group, R77, R78, R79 and R80 may be the same or different provided that at least three thereof are cyano groups and the others independently represent a hydrogen atom, a cyano group, a nitro group or a halogen atom, R77′, R78′, R79′ and R80′ may be the same or different and independently represent a group selected from a hydrogen atom and a halogen atom provided that at least three thereof are fluorine atoms and X represents a halogen atom. These compounds are useful as synthetic intermediates for the preparation of luminescent bis(aminostyryl)benzene compounds.
摘要:
A bis(aminostyryl)benzene compound of the following general formula [I] is provided wherein R2 and R3 independently represent an unsubstituted aryl group, and R1 and R4 independently represent an aryl group, and R5 to R8 independently represent a cyano group or the like. A process for the preparation thereof is described wherein a 4-(N,N-diarylamino)benzaldehyde and a diphosphonic acid ester or diphosphonium salt are, for example, subjected to condensation reaction. Intermediates of the bis(aminostyryl)benzene compound are also described.
摘要:
To provide compounds, which are suitable for use as an organic luminescent material capable of developing intense luminescence which is yellow to red, and a process for preparing in general and high efficiency. A bis(aminostyryl)benzene compound of the following general formula [I] is provided wherein R2 and R3 independently represent an unsubstituted aryl group, and R1 and R4 independently represent an aryl group, and R5 to R8, independently represent a cyano group or the like. A process for the preparation thereof is described wherein a 4-(N,N-diarylamino)benzaldehyde and a diphosphonic acid ester or diphosphonium are subjected to condensation reaction. Intermediates of the bis(aminostyryl)benzene compound are also described.
摘要:
An organic electroluminescence element includes: a pair of electrodes; and an organic light emitting functional layer structured as a multilayer structure made of an organic material held between the pair of electrodes, and containing at least one of a material represented by the general formula (1), and a material represented by the general formula (2) in the multilayer structure.
摘要:
An organic electroluminescence element that includes a pair of electrodes and an organic light emitting functional layer. The organic light emitting functional layer being a multilayer structure made of an organic material between the pair of electrodes, and containing at least one of a material represented by the general formula (1), and a material represented by the general formula (2) in the multilayer structure, where general formula (1) and general formula (2) are:
摘要:
A heterocycle-containing iridium complex compound which emits light in the region from green to blue, and an organic EL device using the iridium complex providing higher efficiency and extended lifespan are provided. The EL device includes, for example, an organic layer including a heterocycle-containing iridium complex compound represented by the following structural formula:
摘要:
An organic light-emitting material characterized in that it is used in a light emitting layer in a green light emitting element and represented by the following general formula (1): wherein: n1 is an integer of 0 to 3; R1 is an alkyl group having 10 carbon atoms or less; Ar1 is a monovalent group which is derived from monocyclic or fused-ring aromatic hydrocarbon having 20 carbon atoms or less, and which optionally has a substituent having 10 carbon atoms or less; and Ar2 is a divalent group which is derived from a ring assembly having 30 carbon atoms or less and being comprised of monocyclic or fused-ring aromatic hydrocarbon having 1 to 3 rings, and which optionally has a substituent having 4 carbon atoms or less. There can be provided an organic light-emitting material which has satisfactorily excellent light emission efficiency and high color purity as well as higher reliability and which is advantageously used to constitute a green light emitting layer, and a method for producing the same.
摘要翻译:一种有机发光材料,其特征在于其用于绿色发光元件的发光层并由以下通式(1)表示:其中:n 1是整数0 到3; R 1是具有10个或更少碳原子的烷基; Ar 1是衍生自具有20个或更少碳原子的单环或稠环芳烃的单价基团,并且其任选具有10个或更少碳原子的取代基; 和Ar 2是衍生自具有30个或更少碳原子的环组合的二价基团,并且由具有1至3个环的单环或稠环芳烃组成,并且其任选具有取代基 具有4个或更少的碳原子。 可以提供发光效率好,色纯度高,可靠性高,有利地用于构成绿色发光层的有机发光材料及其制造方法。
摘要:
An organic electroluminescent element is characterized by having a light emitting layer (503) containing a fluoranthene derivative and emitting green light. The fluoranthene derivative is introduced as a guest into the light emitting layer, and, by using an organic material having a fluorescence spectrum overlapping the absorption spectrum of the fluoranthene derivative, e.g., an arylanthracene derivative as a host, the organic electroluminescent element advantageously emits green light with satisfactorily excellent light emission efficiency and high color purity and has higher reliability.