Merck Patent Gmbh

Az Electronic Materials (luxembourg) S.a.r.l.

Ridgefield Acquisition

Ralf Grottenmueller

Fumio Kita

Abraham Casas Garcia-Minguillan

Dieter Wagner

Tatsuro Nagahara

Ingo Koehler

Robert Wiacek

Masakazu Kobayashi

Andreas Benker

Takashi Fujiwara

Takashi Kanda

Yoshio Nojima

Martin Roeder

Yvonne Ott

Hironori Endo

Christoph Landmann

Fabian Blumenschein

Daniel P Russell

Zehra Serpil Gonen Williams

Sergej Nell

Abraham Casas Garcia-minguillan

The present invention relates to a process for manufacturing an optoelectronic device, wherein a layer of a formulation containing a silazane polymer and a wavelength converting material is applied to an optoelectronic device precursor, precured by exposure to radiation and then cured. There is further provided an optoelectronic device, preferably a light emitting device (LED) or a micro-light emitting device (micro-LED), which is prepared by said manufacturing process.

Manufacturing process for an optoelectronic device

The present invention relates to new coating compositions for the preparation of functional surface coatings on various base material substrates. The coating compositions are based on a silazane-containing polymer and a non-polymeric phenolic compound comprising at least two and not more than four aromatic units in its molecular structure. The coating compositions provide improved physical and chemical surface properties and may be applied by user-friendly coating methods.

Surface coating compositions

The present invention relates to a manufacturing method for a wavelength converting component which is prepared from a dispersion containing a crosslinkable ceramizable polymer material having a silazane repeating unit and at least one wavelength converting material. There are further provided wavelength converting components which can be used for converting blue, violet and/or UV light into light with a longer wavelength. There is also provided a light source and a lighting unit comprising said wavelength converting components.

Wavelength converting component

The present invention relates to silazane-siloxane random copolymers as well as their production and their uses, particularly in LEDs.

Silazane-siloxane random copolymers, their production and use

The present invention relates to a formulation suitable for the preparation of a highly refractive encapsulation material with good barrier properties towards water vapor for an LED, to an encapsulation material for an LED having a high refractive index and good barrier properties towards water vapor which is obtainable from said formulation and to a light emitting device (LED) comprising said encapsulation material. The formulation comprises a polymer comprising a first repeating unit Uand a second repeating unit U; and a surface-modified nanoparticle, wherein the surface-modified nanoparticle does not contain any zirconium dioxide.

Formulation for an LED encapsulation material

An inorganic polysilazane resin of the present invention has a Si/N ratio (i.e. a ratio of contained silicon atoms to contained nitrogen atoms) of 1.30 or more. The inorganic polysilazane resin having such a high Si content can be produced by, for example, a method in which an inorganic polysilazane compound containing both Si&#x2014;NH and Si&#x2014;Cl is heated to react NH with Cl, a method in which a silazane oligomer (polymer) that leaves no Si&#x2014;Cl bond is synthesized and a dihalosilane is added to the synthesized silazane oligomer (polymer) to perform a thermal reaction, and the like. A siliceous film can be formed by, for example, applying a coating composition containing the inorganic polysilazane resin onto a base plate and then dried and the dried product is then oxidized by bringing the dried product into contact with water vapor or hydrogen peroxide vapor and water vapor under heated conditions.

Inorganic polysilazane resin

The present invention relates to a formulation suitable for the preparation of a highly refractive encapsulation material with good barrier properties towards water vapor for an LED, to an encapsulation material for an LED having a high refractive index and good barrier properties towards water vapor which is obtainable from said formulation and to a light emitting device (LED) comprising said encapsulation material. The formulation comprises a polymer comprising a first repeating unit Mand a second repeating unit M; and a surface-modified zirconium dioxide nanocrystal.

Formulation for LED encapsulation material

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Wiesbaden, Germany

Ralf Grottenmueller