Abstract: An organic El element includes an organic compound layer including at least an emissive layer interposed between a pair of electrodes, wherein the emissive layer includes a naphthacene derivative and an amount of a naphthacene precursor compound present in the emissive layer is 5.0 parts by weight or less with respect to 100 parts by weight of the naphthacene derivative.

Abstract: A light emitting device material precursor represented by the Formula (1): (wherein R1 to R6 each may be the same or different and is selected from the group consisting of hydrogen, alkyl groups, cycloalkyl groups, alkenyl groups, cycloalkenyl groups, alkoxy groups, alkylthio groups, arylether groups, aryl thioether groups, aryl groups and heteroaryl groups, with the proviso that at least one of R1 to R6 has a fused aromatic hydrocarbon having two or more rings).

Abstract: The present invention is directed to a method for producing a device, comprising the steps of: applying, on a donor substrate, a precursor material which is solvent-soluble during application and is capable of being converted to a device-constituting material after the application; converting the precursor material to a device-constituting material; and transferring the material on the donor substrate onto a device substrate. According to the present invention, it is possible to produce an organic device that offers performance as high as that of an organic device produced by vapor deposition, and the present invention is particularly suitable for producing large-sized devices.

Abstract: Provided is a patterning method, wherein a donor substrate, in which a light-to-heat conversion layer and a division pattern are formed on a substrate and a transferring material exists within said division pattern, is opposed to a device substrate and said transferring material is transferred on the device substrate by irradiating the light-to-heat conversion layer with light so that at least a part of said transferring material and at least apart of said division pattern are simultaneously heated. The patterning method enables large size and highly accurate fine patterning without degrading characteristics of thin films such as organic EL materials.

Abstract: A light emitting polymer composition comprising a light emitting polymer and a compound selected from the following formulae (1a) to (1d): (wherein, X represents an atom or atomic group forming a 5-membered or 6-membered ring together with four carbon atoms on two benzene rings in the formula, Q and T represent each independently a hydrogen atom, halogen atom, alkyl group, alkyloxy group, alkylthio group, aryl group, aryloxy group, arylthio group, arylalkyl group, arylalkyloxy group, arylalkylthio group, alkenyl group, alkynyl group, arylalkenyl group, arylalkynyl group, substituted silyloxy group, substituted silylthio group, substituted silylamino group, substituted amino group, amide group, acid imide group, acyloxy group, mono-valent heterocyclic group, heteroaryloxy group, heteroarylthio group, cyano group or nitro group).

Abstract: A polymer compound comprising in the same molecule a structure of (A) a conjugated polymer and a structure of (B) a metal complex having at least one tridentate ligand and having a central metal of which atomic number is 21 or more.