Hoechst Aktiengesellschaft

Other

Sony Corporation

Sony Deutschland Gmbh

Sony International (europe) Gmbh

Dieter Neher

Akio Yasuda

Donald Lupo

Tzenka Miteva

Andreas Meisel

Marcus Remmers

Masanobu Yamamoto

Gabriele Nelles

Willi Kreuder

Yuichi Sabi

Martin Grell

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.

Aligned emissive polymer blend, film and device based thereon

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.

Optical recording medium and optical recording method

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&deg; 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.

Polyimide layer comprising functional material, device employing the same and method of manufacturing same device

Polymers comprising olig-p-phenylene units, a process for their

Electroluminescene device with emission of polarized light

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Potsdam, Germany

Dieter Neher