Udc Ireland Limited

Basf Se Corporation

Koninklijke Philips Corporation N.v.

Osram Opto Semiconductors Gmbh

Oledworks Gmbh

Osram Oled Gmbh

Osram Opto Semiconductor Gmbh

Philips Intellectual Property & Standards Gmbh

Korinna Dormann

Christian Lennartz

Gerhard Wagenblast

Soichi Watanabe

Christian Schildknecht

Oliver Molt

Evelyn Fuchs

Stefan Metz

Nicolle Langer

Peter Murer

Glauco Battagliarin

Ute Heinemeyer

Heinz Wolleb

Herbert Friedrich Boerner

Flavio Luiz Benedito

Volker Van Elsbergen

Guenter Schmid

Thomas Gessner

Thomas Schaefer

Teresa Marina Figueira Duarte

Thomas Geβner

Thomas Geßner

Helmut Reichelt

Jens Rudolph

Oliver Seeger

Hannah Stephanie Mangold

Minlu Zhang

Karsten Heuser

Ralf D Krause

Christian Eickhoff

Arvid Hunze

Hans Reichert

Junichi Tanabe

Christian Doerr

Thomas Holcombe

Thomas-Wesley Holcombe

Günter Schmid

Thomas Schäfer

Ingo Muenster

JianQiang Qu

Rene Fischer

Yannick Fuchs

Ingo Münster

Stefan Kirsch

Georg Beck

Marie-Pascale Perritaz

Roland Hinrich Staff

Chuanjie Loh

Bernd Dieter Oschmann

Gerd Rollar

Soichi Dr-Ing Watanabe

Evelyn Dr Fuchs

Oliver Dr Molt

Van Volker Elsbergen

Christina Lennartz

The present invention relates to a new crystal form of the compound of formula and a process for its preparation. The compound may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and is particularly well-suited for security applications.

Crystal form of an organic fluorescent compound

The present invention relates to microparticle compositions comprising an organic IR absorbing pigment having a main absorption maximum in the range from 750 to 1100 nm. The invention also relates to a process for producing said microparticle compositions and to their use in a printing ink, in particular in a printing ink, which is suitable for producing a security feature or a security document. The microparticles of the pigment composition contain the organic IR absorbing pigment as solid particles, which are surrounded by or embedded in an aminoplast polymer, which is a polycondensation product of one or more amino compounds and one or more aldehydes. The microparticle based pigment composition is characterized by a volume based particle size distribution, as determined by static light scattering according to ISO 13320:2009 EN, having a D(4,3) value in the range from 1.0 to 15.0 μm.

Microparticle composition comprising an organic IR absorbing pigment

The present invention relates to heteroleptic complexes comprising a phenylimidazole or phenyltriazole unit bonded via a carbene bond to a central metal atom, and phenylimidazole ligands attached via a nitrogen-metal bond to the central atom, to OLEDs which comprise such heteroleptic complexes, to light-emitting layers comprising at least one such heteroleptic complex, to a device selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, to the use of such a heteroleptic complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge blocker.

Heteroleptic carbene complexes and the use thereof in organic electronics

The present invention relates to naphthalocyanine and phthalocyanine chromophores of formula (I), their use as almost colourless IR absorbers, for optical filter applications, especially for plasma display panels, or for laser welding of plastics. The compounds may be used in compositions for inks, paints and plastics, especially in a wide variety of printing systems and are particularly well-suited for security applications.

Naphthalocyanine and phthalocyanine chromophores

The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 2 to 40% by weight of a triplet emitter X having a difference of the singlet energy (E(X)) and the triplet energy (E(X)) of less than or equal to 0.4 eV [Δ(E(X)) −(E(X))≤0.4 eV], 0.05 to 5.0% by weight of a fluorescent emitter Y and 55 to 97.95% by weight of a host compound(s), wherein the amount of the triplet emitter X, the fluorescent emitter Y and the host compound(s) adds up to a total of 100% by weight and the singlet energy of the triplet emitter X(E(X)) is greater than the singlet energy of the fluorescent emitter Y(E(Y)) [(E(X))>E(Y)]. By doping, for example, an emitting layer containing a luminescent organometallic complex having a small S-Tsplitting, with a fluorescent emitter the emission decay time can significantly be shortened without sacrificing external quantum efficiency (EQE) because of very efficient energy transfer.

Highly efficient OLED devices with very short decay times

The present invention relates to metal-carbene complexes comprising a central atom selected from iridium and platinum, and diazabenzimidazolocarbene ligands, to organic light diodes which comprise such complexes, to light-emitting layers comprising at least one such metal-carbene complex, to a device selected from the group comprising illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED and to the use of such a metal-carbene complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge or exciton blocker.

Metal complexes comprising diazabenzmidazolocarbene ligands and the use thereof in OLEDS

The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 2 to 40% by weight of a triplet emitter X having a difference of the singlet energy (E(X)) and the triplet energy (E(X)) of less than or equal to 0.4 eV [&#x394;(E(X))&#x2212;(E(X))&#x2264;0.4 eV], 0.05 to 5.0% by weight of a fluorescent emitter Y and 55 to 97.95% by weight of a host compound(s), wherein the amount of the triplet emitter X, the fluorescent emitter Y and the host compound(s) adds up to a total of 100% by weight and the singlet energy of the triplet emitter X (E(X)) is greater than the singlet energy of the fluorescent emitter Y (E(Y)) [(E(X))&#x3e;E(Y)]. By doping, for example, an emitting layer containing a luminescent organometallic complex having a small S-Tsplitting, with a fluorescent emitter the emission decay time can significantly be shortened without sacrificing external quantum efficiency (EQE) because of very efficient energy transfer.

An organic electronic device, preferably an organic light-emitting diode (OLED), comprising at least one metal-carbene complex comprising one, two or three specific bidentate diazabenzimidazole carbene ligands; a light-emitting layer comprising said metal-carbene complex as emitter material, preferably in combination with at least one host material; the use of said metal-carbene complex in an OLED; an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in handbags, units in accessories, units in furniture and units in wallpaper comprising said organic electronic device, preferably said OLED, or said light-emitting layer; the metal-carbene complex comprising one, two or three specific bidentate diazabenzimidazole carbene ligands mentioned above and a process for the preparation of said metal-carbene complex.

Monosubstituted diazabenzimidazole carbene metal complexes for use in organic light emitting diodes

Metal complexes comprising diazabenzmidazolocarbene ligands and the use thereof in OLEDs

The present invention relates to a new crystal form of bis(diphenylimidazolidinetrithione-&#x3ba;S4, &#x3ba;S5)-, (SP-4-1)-nickel(II), a printing ink formulation for security printing and security documents, comprising the new crystal form of bis(diphenylimidazolidinetrithione-&#x3ba;S4, &#x3ba;S5)-, (SP-4-1)-nickel(II) as well as its use as IR absorber.

Crystal form of a dithiolene metal complex

The present invention relates to organic light-emitting devices comprising (a) an anode, (i) a cathode, and (e) an emitting layer between the anode and cathode, comprising 2 to 40% by weight of a luminescent organometallic complex X having a difference of the singlet energy (E(X)) and the triplet energy (E(X)) of of &#x2264;0.3 eV [&#x394;(E(X))&#x2212;(E(X))&#x2264;0.3], 0.05 to 5.0% by weight of a fluorescent emitter Y and 55 to 97.95% by weight of a host compound(s), wherein the amount of the organometallic complex X, the fluorescent emitter Y and the host compound(s) adds up to a total of 100% by weight and the singlet energy of the luminescent organometallic complex X (E(X)) is greater than the singlet energy of the fluorescent emitter Y (E(Y)) [(E(X))&#x3e;E(Y)]. By doping, for example, an emitting layer containing a luminescent organometallic complex having a small S-Tsplitting, with a fluorescent emitter the emission decay time can significantly be shortened without sacrificing external quantum efficiency (EQE) because of very efficient energy transfer.

An organic electronic device comprising at least one hole-transport material and/or at least one electron/exciton blocker material, wherein said at least one hole-transport material and/or said at least one electron/exciton blocker material is an Ir metal-carbene complex comprising one, two or three specific bidentate azabenzimidazole ligands; a hole transport layer or an electron/exciton blocking layer, comprising at least one Ir metal-carbene complex, comprising one, two or three specific bidentate azabenzimidazole ligands; an apparatus selected from the group consisting of stationary visual display units, mobile visual display units, illumination units, units in items of clothing, units in furniture and units in wallpaper, comprising the organic electronic device of the present invention or the hole transport layer or the electron/exciton blocking layer of the present invention; and the use of an Ir metal-carbene complex comprising one, two or three specific bidentate azabenzimidazole ligands according to the present invention as hole-transport material and/or electron/exciton blocker material.

Azabenzimidazole carbene complexes as efficiency booster in OLEDs

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Bad Duerkheim, Germany

Korinna Dormann