Abstract: Provided are a thiophene-containing compound represented by the following formula (X-1), and an organic electroluminescent device that includes a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer includes a charge-transporting polyester having a repeating structure containing at least one structure selected from the structures represented by the following formulae (I-1) and (I-2) as its partial structure. In formula (X-1), Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 to R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n? is an integer of 1 to 5.

Abstract: An organic electroluminescent element which has a long lifetime and excellent manufacturability includes a charge-transporting polymer material having high mobility and solubility in solvents, and further includes a pair of electrodes and an organic compound layer sandwiched between the pair of electrodes, at least one of the electrodes being transparent, the organic compound layer being formed of one or more layers, and at least one of the one or more layers containing at least one charge-transporting polyester represented by Formula (I-1) or (I-2). In Formulae (I-1) and (I-2), A1 represents at least one structure selected from the structures represented by Formulae (II-1) and (II-2), Y1 represents a divalent alcohol residue, Z1 represents a divalent carboxylic acid residue, each B independently represents the terminal group, m represents an integer of 1 to 5, and p represents an integer of 5 to 5000.

Abstract: An organic electroluminescent element comprising an anode and a cathode that form a pair of electrodes, and at least one organic compound layer sandwiched between the pair of electrodes, at least one of the electrodes being transparent or translucent, and the organic compound layer(s) containing, at least one charge-transporting polyester composed of repeating units represented by Formula (I-1) and Formula (I-2) as a partial structure (wherein X is represented by Formula (III)), and a display device including the same are provided.

Abstract: The present invention provides a thiophene-containing compound represented by Formula (I) and a thiophene-containing compound polymer using the thiophene-containing compound. In Formula (I), Ar1 represents a substituted or unsubstituted monovalent aromatic group; X represents a divalent straight-chain hydrocarbon group having 1 to 6 carbon atoms, a divalent branched-chain hydrocarbon group having 2 to 10 carbon atoms, or a substituted or unsubstituted divalent aromatic group; R1 to R5 each independently represent a hydrogen atom, an alkyl group, a cyano group, a halogen group, a substituted amino group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; 1 represents an integer from 1 to 5; and m and k each independently represent 0 or 1.

Abstract: An organic electroluminescence element includes a pair of electrodes composed of an anode and a cathode, at least one of which is transparent or semitransparent, and one or more organic compound layers disposed between the pair of electrodes, wherein at least one of the organic compound layers comprises at least one charge-transporting polyester consisting of repeating units containing, as a partial structure, at least one structure represented by the following formula (I-1).

Abstract: An organic electroluminescent device, having an organic compound layer including two or more layers including at least a buffer layer and an emitting layer, wherein at least one of the organic compound layers other than the buffer layer contains at least one charge-transporting polyester represented by Formula (I-1) or (I-2), and the buffer layer is formed in contact with an anode and contains a crosslinked compound formed by using at least one charge injection material containing a substituted silicon group and represented by Formula (III).

Abstract: The invention provides an organic electroluminescent device having an electrode pair of an anode and a cathode, at least one of which is transparent or translucent, and an organic compound layer disposed between the anode and the cathode, the organic compound layer having two or more layers including a buffer layer and a light-emitting layer. At least one of the layers of the organic compound layer has a specific charge-transporting polyether. The buffer layer is provided in contact with the anode and having at least a crosslinked compound formed by using at least one charge injection material having a specific substituted silicon group. The invention further provides a display device having at least a substrate, plural organic electroluminescent devices disposed on the substrate in a matrix form, and a driving unit to drive the organic electroluminescent devices, each of the plural organic electroluminescent devices is the organic electroluminescent device.

Abstract: The present invention provides a carbazole compound represented by the following formula (I): wherein each Ar1 independently represents a substituted or unsubstituted monovalent aromatic group or an aromatic group containing a heteroring, and R1 and each R2 independently represent a hydrogen atom, an alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group.

Abstract: There is provided a quinoxaline-containing compound represented by the following formula (I); wherein Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 represents a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group.

Abstract: An organic electroluminescent element having at least one pair of electrodes including an anode and a cathode, at least one of which having light transmissive, and at least one organic compound layer disposed between the electrodes, wherein the at least one organic compound layer contains at least one kind of non-conjugated polymer having terminal groups, and at least one of terminal groups of the non-conjugated polymer contains a fluorescent substance emitting fluorescence in a solid state.

Abstract: The invention provides an organic electroluminescent device having at least an anode and a cathode forming a pair of electrodes. At least one electrode being transparent or translucent, and a buffer layer and an organic compound layer is disposed between the anode and the cathode. The organic compound layer has one or more layers including at least a light-emitting layer. At least one of the layers of the organic compound layer comprising at least one specific charge-transporting polyether. At least one of the layers having the charge-transporting polyether is provided in contact with the buffer layer. The buffer layer is provided in contact with the anode and has at least one charge injection material selected from the group consisting of an inorganic oxide, an inorganic nitride, and an inorganic oxynitride. The invention further provides a display device using the organic electroluminescent device.

Abstract: An organic electroluminescent device having a pair of electrodes including a positive electrode and a negative electrode at least one of which is transparent or translucent, and one or more organic compound layers interposed between the pair of electrodes, at least one layer of the organic compound layers containing at least one charge transporting polyester having a repeating unit that contains at least one structure selected from structures represented by the following formula (I-1) as a partial structure.

Abstract: A method of producing an organic electroluminescent device includes forming an organic compound layer with an organic compound layer coating liquid that contains an organic compound and an aliphatic ketone solvent. The aliphatic ketone solvent contains about 0.01% by weight or less of an impurity contained ketone structure component.

Abstract: An organic electroluminescence device of the invention includes: an anode; a cathode; and an organic compound layer; the organic compound layer including at least one layer including a charge-transporting polyester; the charge-transporting polyester including repeating units each containing a structure represented by the following formula (I-1) or (I-2); the thickness being about 20 to 100 nm of the nearest layer to the anode of the at least one layer including the charge-transporting polyester; the cathode including a first layer and a second layer; the first layer being in contact with the organic compound layer and including an alkaline metal oxide, alkaline earth metal oxide, alkaline metal halide or alkaline earth metal halide; the second layer being in contact with the first layer and including an alkaline metal or alkaline earth metal.

Abstract: An organic electroluminescent device includes one or more organic compound layers sandwiched between a pair of electrodes, at least one of the electrodes being transparent or semi-transparent, wherein there is provided a layer containing a charge transport polyester comprising a repeating unit containing at least one type selected from structures represented by the following formulae (I-1) and (I-2), as a substructure, so as to be in contact with at least one electrode of the pair of electrodes; and a difference between the ionization potential of the charge transport polyester contained in the layer in contact with the one electrode, and the work function of the surface of the one electrode is within a range of from 0 eV to 0.7 eV.

Abstract: Provided are a thiophene-containing compound represented by the following formula (X-1), and an organic electroluminescent device that includes a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer includes a charge-transporting polyester having a repeating structure containing at least one structure selected from the structures represented by the following formulae (I-1) and (I-2) as its partial structure. In formula (X-1), Ar1 represents a substituted or unsubstituted monovalent aromatic group; and R1 to R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted aralkyl group; and n? is an integer of 1 to 5.

Abstract: The invention provides an organic electroluminescence device having a pair of electrodes at least one of which is transparent or translucent and plural organic compound layers positioned between the pair of electrodes, at least one of the plural organic compound layers being a hole transport layer in which an electron transport material is mixed with at least one hole transport polymer, and at least one of the plural organic compound layers containing a luminescent material.

Abstract: Disclosed is an organic electroluminescent element comprising at least one pair of electrodes comprising an anode and a cathode, at least one of which having light permeability, and one or a plurality of organic compound layers held between the electrodes, wherein at least one organic compound layer contains at least one kind of charge-transferable polyether comprising a repetition unit containing at least one partial structure selected from the group consisting of the following general formulae (I-1) and (I-2)

Abstract: The invention provides a diamine compound polymer having a 1,3-phenylene group selected from structural formulae represented by formulae (I-1) and (I-2): where, in the formulae (I-1) and (I-2), A represents a structure represented by the following formula (II); R represents a hydrogen atom, an alkyl group, a substituted or non-substituted aryl group, or a substituted or non-substituted aralkyl group; Y represents a divalent alcoholic residue; Z represents a divalent carboxylic acid residue; B and B? independently represent —O—(Y—O)n—R or —O—(Y—O)n—CO—Z—CO—O—R? (where R, Y and Z have the same meanings as described above, and R? represents an alkyl group, a substituted or non-substituted aryl group, or a substituted or non-substituted aralkyl group); n represents an integer of 1 to 5; and p represents an integer of 5 to 5000; where, in the formula (II), Ar represents a substituted or non-substituted aromatic group; X represents a substituted or non-substituted divalent 1,3-phenylene group; T represents

Abstract: The present invention provides an organic semiconductor transistor element that includes at least a source electrode, a drain electrode, an organic semiconductor formed to be electrically conductive to the source electrode and the drain electrode, and a gate electrode which is both insulated from the organic semiconductor and capable of applying an electric field. The organic semiconductor includes a polymer compound containing an aromatic tertiary amine.