Abstract: The invention relates to aligned emissive polymer blended with at least one chromophore with rigid-rod-type or discotic asymmetric molecular structure; to film incorporating such polymer blends; to devices incorporating such polymers blends or films, and to uses thereof.

Abstract: A light orientation film and a liquid crystal thin film are formed adjacent to each other. Light is irradiated to the light orientation film and the liquid crystal thin film, so as to cause the light orientation film to be orientated while viscosity of the liquid crystal thin film is lowered by a temperature increase by the light irradiation, so that an intermolecular force on the boundary between the light orientation film and the liquid crystal thin film causes the liquid crystal molecules in the liquid crystal thin film to the orientation of the light orientation film. By this orientation of the liquid crystal molecules, recording information is maintained. Thus, it is possible to realize a sufficient signal amount while using the light orientation film as well as to obtain a thermal stability and a stability against light irradiation.

Abstract: The invention relates to novel layers comprising polyimide and organic functional material such as hole transport material, electron transport material and/or emitter material having a glass transition temperature of higher than 80° C. The layers can be prepared by mixing the functional material with a polyimide precursor material, forming a thin film out of the mixture and converting said mixture into doped polyimide. Said doped polyimide layers can be used for the manufacture of electronic and optoelectronic devices such as e.g. light emitting devices. Due to the content of functional material, they can act as hole transport, electron transport or emitter layer. Moreover, the layers can be processed to have aligning properties for liquid crystals, thus allowing the manufacture of devices emitting polarized light. Furthermore, after conversion to doped polyimide, the layers are resistant to solvent treatment allowing the preparation of multi-layers by successive coating and conversion cycles.

Abstract: The invention relates to aligned emissive polymer blended with at least one chromophore with rigid-rod-type or discotic asymmetric molecular structure; to film incorporating such polymer blends; to devices incorporating such polymers blends or films, and to uses thereof.

Abstract: The present invention relates to polyfluorenes end-capped with at least one charge-transporting moiety, and to films and devices based thereon.

Abstract: A novel polymer comprising oligo-p-phenylene units and having formula (A.sub.k B).sub.n is disclosed, wherein A and B have the following chemical structure: ##STR1## Y are identical or different and are each (E)--CR.sup.9 .dbd.CR.sup.10 --, --C.dbd.C-- or --CHR.sup.11 --CHR.sup.12 ;R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5, R.sup.6, R.sup.7, R.sup.8, R.sup.9, R.sup.10, R.sup.11, R.sup.12 are, independently of one another, identical or different in the individual structural elements and are each H, a straight-chain or branched alkyl group having from 1 to 22 carbon atoms, or an aryl or aryloxy group, or Br, Cl, F, CN or alkyloxycarbonyl having from 2 to 23 carbon atoms;k is from 1 to 25,n is from 1 to 200.The polymer of the present invention may be used as an electroluminescence material.

Abstract: The invention relates to an electroluminescence device having at least one light-emitting layer which comprises conjugated, stiff-chain polymers which are soluble in organic solvents, wherein the emitted electroluminescence is polarized and the intensity of the light which is polarized parallel to the longitudinal axis of the substrate is at least three times the intensity polarized perpendicular thereto.