Abstract: A luminescence device having a layer containing a metal coordination compound which has a partial structure MLm of formula (2) below and is preferably entirely represented by formula (3) below: MLmL?n,??(3) wherein M denotes a metal atom of Ir, Pt, Rh or Pd; represent mutually different bidentate ligands; m is 1 or 2 or 3; n is 0 or 1 or 2 with the proviso that m+n=2 or 3; the partial structure MLm is represented by formula (2) below (wherein B is an isoquinolyl group bonded to the metal M with its N and including a position-1 carbon atom bonded to a cyclic group A which includes the C bonded to the metal M), and the partial structure ML?n is represented by formula (4), (5) or (6) shown below. There is provided a luminescence device capable of high-efficiency luminescence and long-term high luminance and adapted to red luminescence.

Abstract: The application relates to an organic electroluminescent device which contains 2,5 diaminoterephthalic acid derivatives of formula 1a as emitter substances in one or several emitter layers in a pure or doped manner. The ring A is a triple unsaturated benzene ring wherein R4? and R8? are equal to zero or ring A is a double unsaturated ring respectively provided with a double bond in the 1,2 position and 4,5-position, and wherein R10 is a nitrile radical —CN or a radical C(?X1)—X2R1; R11 is a nitrile radical —CN or a radical —C(?X3)—X4R5, X1 and X3 are oxygen, sulphur or imino, X2 and X4 are oxygen, sulphur or optionally substituted amino, R1 to R8, R4? and R8? are H, C1–C20-alkyl, aryl, heteroaryl, R4 and R8 can also be halogen, nitro, cyanogen or amino, R2 to R4, R6–R8, R4? and R8? can also be trifluoromethyl or pentafluorophenyl, wherein certain radicals can form a saturated or unsaturated ring.

Abstract: An organic electroluminescence device having a substrate, an electrode formed on the substrate, a light emitting layer formed on the electrode, the light emitting layer enabling injection of positive and negative electrical charges therein and an opposing electrode formed with respect to the light emitting layer so that the light emitting layer is arranged between the transparent electrode and the opposing electrode. The light emitting layer contains a light emitting substance for emitting light anisotropically, the light emitting substance having transition dipole moments attributable to a molecular skeleton thereof, and the transition dipole moments being oriented within an angular range from 0 degree to 70 degrees with respect to a direction normal to a side surface of the light emitting layer.

Abstract: Generally, and in one form, the present invention is a composition of light-emitting block copolymer. In another form, the present invention is a process producing a light-emitting block copolymers that intends polymerizing a first di(halo-methyl) aromatic monomer compound in the presence of an anionic initiator and a base to form a polymer and contacting a second di(halo-methyl) aromatic monomer compound with the polymer to form a homopolymer or block copolymer wherein the block copolymer is a diblock, triblock, or star polymer. In yet another form, the present invention is an electroluminescent device comprising a light-emitting block copolymer, wherein the electroluminescent device is to be used in the manufacturing of optical and electrical devices.

Abstract: An organic electroluminescence element is disclosed which comprises a hole transporting layer containing a hole transporting material, a light emission layer containing a host compound and a phosphorescent compound, a hole blocking layer, and an electron transporting layer, the host compound having a band gap of from 3.3 eV to 5 eV, and having a molecular weight of not less than 500, and relationship c<d being satisfied, wherein c (eV) represents a difference between energy level of LUMO (lowest unoccupied molecular orbital) in the hole blocking layer and energy level of LUMO in the light emission layer and d (eV) represents a difference between energy level of HOMO (highest occupied molecular orbital) in the hole blocking layer and energy level of HOMO in the light emission layer.

Abstract: In evaluating whiteness of light from a light source or a luminaire, whiteness W is given by the following equation, W=?5.3C+100, wherein chroma C is determined by the CIE 1997 Interim Color Appearance Model (Simple Version).

Abstract: An electroluminescent device includes an anode, a cathode and at least one organic layer sandwiched between the anode and the cathode, the organic layer including a light-emitting layer which includes compound C1.

Abstract: A compound represented by formula (IA) or (IIA): wherein R11, R12 and R13 each represents a hydrogen atom, an aliphatic hydrocarbon group, an aryl group or a heterocyclic group; L1 represents a connecting group; R11 and R12, R11 and L1 and R12 and L1 may each combine with each other to form a ring when possible; R14, R15, R16 and R17 each represents a hydrogen atom or a substituent; and R13 to R17 may each combine with each of R11 to R17 or L1 to form a ring when possible; wherein R13 to R17 and L1 have the same meaning as in formula (IA); Q represents an atomic group necessary for forming a 5-, 6- or 7-membered ring with N; and R13, R14, R15, R16 and R17 may each combine with each of R13 to R17, the connecting group L1 or the atomic group Q to form a ring.

Abstract: Novel pentaphenylenes having the following general formula are described; These polymers generally exhibit blue electroluminescence and are useful in electronic devices.

Abstract: Novel pentaphenylene copolymers which are useful in electronic devices are described.

Abstract: The invention relates to an organic electroluminescent device which contains 2,5-diaminoterephthalic acid derivatives of formula 1a as emitter substances in one or several emitter layers in a pure or doped manner. The ring A is a triple unsaturated benzene ring wherein R4? and R8? are zero or ring A is a double unsaturated ring respectively provided with a double bond in the 1,2 position and 4,5 position, and wherein R10 is a nitrile radical —CN or a radical C(?X1)—X2R1, R11 is a nitrile radical —CN or a radical —C(?X3)—X4R5, X1 and X3 are oxygen, sulfur or imino, X2 and X4 are oxygen, sulfur or optionally substituted amino, R1–R8, R4? and R8? are H, C1–20-alkyl, aryl, heteroaryl, R4 and R8 can be halogen, nitro, cyanogen or amino, R2–R4, R6–R8, R4? and R8? can be trifluoromethyl or pentafluorophenyl, and wherein certain radicals can form a saturated or unsaturated ring.

Abstract: Disclosed are environmentally benign crop protection compounds that interfere with the attachment of a broad range of plant pathogens to plant cells surfaces.

Abstract: There is provided a polymer compound in which a metal complex is bonded to a main chain of a polymer via a substituent for imparting a given distance therebetween. Specifically, a polymer compound is provided which has a partial structure represented by the general formula (1): It is thus rendered possible to improve the yield of synthesis of the polymer compound and to introduce a desired metal complex in a predetermined amount into the polymer compound. It is thus made possible to realize a white-light emitting material or a light emission of a desired color.

Abstract: This invention relates to a photoluminescent layer in the optical and adjoining spectral regions based on a solid solution of organic dyes. The photoluminescent layer consists of organic dye molecules with a low dye concentration and a matrix material of metal oxides, with the matrix material having a slightly sub-stoichiometric oxygen content. A method and a device for producing the photoluminescent layer are described.

Abstract: An organic light-emitting device comprising a light-emitting layer or a plurality of organic compound thin layers including a light-emitting layer formed between a pair of electrodes, wherein at least one layer comprises at least one kind of compound represented by the following formula (1): wherein R11, R12 and R13 each represents a group having a cyclocondensed polycyclic hydrocarbon structure in which three or more rings are cyclocondensed; and a novel cyclocondensed polycyclic hydrocarbon compound.

Abstract: An organic EL device comprising organic compound layers, at least one of which has a skeleton represented by formula (I): where L0 is any one of o-, p-, and m-phenylene groups which have two, three or four rings and which may have a substituent with the proviso that when L0 is a phenylene group having four rings, the phenylene group may have an unsubstituted or substituted aminophenyl group somewhere therein, R01, R02, R03 and R04 are each any one of the following groups: where R11, R12, R13, R14, R15, R16 and R17 are each a substituted or unsubstituted aryl group, and r1, r2, r3 and r4 are each an integer of 0 to 5 with the proviso that r1+r2+r3+r4 1, is less susceptible to physical changes, photochemical changes and electrochemical changes, and can emit light having various colors with high reliability and high light emission efficiency.

Abstract: In evaluating whiteness of light from a light source or a luminaire, whiteness W is given by the following equation, W=?5.3C+100, wherein chroma C is determined by the CIE 1997 Interim Color Appearance Model (Simple Version).

Abstract: In a luminescence device formed of one or plural layers of organic film between a cathode and an anode, at least one layer is a luminescence layer, and a luminescence molecule of a metal coordination compound having a basic structure represented by formula (1) MLmL?n and having a substituent on at least one of cyclic groups incorporated as a guest in a host material at a concentration of at least 8 wt. %, which is higher than a concentration at which a luminescence molecule of a similar structure but having no substituent exhibits a maximum luminescence efficiency to form the luminescence layer. As a result, a high-efficiency luminescence device is provided, which is less likely to cause concentration extinction even when a luminescence molecule is contained at a high concentration relative to the host material in the luminescence layer.

Abstract: Devices are provided having an anode, a cathode, and an emissive layer disposed between and electrically connected to the anode and the cathode. The emissive layer includes an emissive material having more than one metal center. In one embodiment, first and second metal centers are independently selected from the group consisting of d7, d8 and d9 metals. A bridging ligand is coordinated to the first metal center and to the second metal center. In one embodiment, the first and second metal centers each have coordination numbers of at least 3, and more preferably each have coordination numbers of 4. In one embodiment, photoactive ligands are coordinated to the first and second metal centers. In one embodiment, there are no photoactive ligands. In one embodiment, a charge neutral bi-nuclear emissive material is provided. In one embodiment the first and metal centers have a co-facial configuration, and preferably a square planar co-facial configuration.

Abstract: The present invention is generally directed to luminescent lanthanide compounds with phosphine oxide, phosphine oxide-sulfide, pyridine N-oxide, and phosphine oxide-pyridine N-oxide ligands. It also relates to electronic devices in which the active layer includes a lanthanide complex.