Merck Patent Gmbh

Qinetiq Limited

Merck Patent Gesellschaft MIT Beschrankter Haftung

The Secretary of State for Defence in Her Britannic Majesty's Government

Merck Patent Gesellschaft

The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland

Warren L Duffy

Mark John Goulding

Martin Heeney

Iain McCulloch

Stephen M Kelly

John William Goodby

Neil L Campbell

Eike Poetsch

Peer Kirsch

Michael Heckmeier

Melanie Klasen-Memmer

Kevin Adlem

Volker Meyer

Alexander Hahn

Werner Binder

Georg Lüssem

Harald Hirschmann

David P Waller

Steven Tierney

Philip Edward May

Mark James

Marcus Thompson

Patricia Eileen Saxton

Martina Weidner

Renate Graulich

Rachel P Tuffin

Steven M Kelly

Simon Higgins

Richard Kendall Childers

Sheila E Rodman

Janine H Wild

David Crouch

Peter Skabara

Dan Walker

Kevin Aldem

Sven Schüpfer

The invention relates to novel formulations comprising an organic semiconductor (OSC) and a conductive additive, to their use as conducting inks for the preparation of organic electronic (OE) devices, especially organic photovoltaic (OPV) cells, to methods for preparing OE devices using the novel formulations, and to OE devices and OPV cells prepared from such methods and formulations.

Conducting formulation

The invention relates to regioregular polyselenophenes, to their use as semiconductors or charge transport materials, in optical, electro-optical or electronic devices, and to optical, electro-optical or electronic devices comprising them.

Regioregular polyselenophenes

The invention relates to novel 9- and/or 10-substituted anthracenes, to their use in liquid crystal, light-emitting or semiconducting materials and devices, in anisotropic polymers, optical, electrooptical, decorative, security, cosmetic, diagnostic, electric, electronic, charge transport, semiconductor, optical recording, electroluminescent, photoconductor or electrophotographic applications, and to liquid crystal, light-emitting and semiconducting materials, polymers and devices comprising them.

Substituted anthracenes

The invention relates to novel mono-, oligo- and polymeric compounds comprising thienothiazole groups, to their use as semiconductors or charge transport materials, in optical, electro-optical or electronic devices, and to optical, electro-optical or electronic devices comprising the novel compounds.

Mono-, oligo- and polymers of thienothiazole

The invention relates to bimesogenic compounds of formula (I): R-MG-X-Sp-X-MG-Rwherein R, R, MG, MG, X, Xand Sp have the meaning given in claim, to the use of bimesogenic compounds of formula (I) in liquid crystal media and devices, in particular in flexoelectric liquid crystal devices, to liquid crystal media and devices, in particular flexoelectric devices, comprising bimesogenic compounds of formula (I) and to improvements in flexoelectric devices.

Bimesogenic compounds and flexoelectric devices

The invention relates to novel mono-, oligo- and polymeric compounds comprising thiophene and selenophene, to their use as semiconductors or charge transport materials, in optical, electro-optical or electronic devices, and to optical, electro-optical or electronic devices comprising the novel compounds.

Monomers, oligomers and polymers comprising thiophene and selenophene

A compound of formula (I): where Ris alkyl or alkenyl, Yand Yare independently selected from oxygen or sulphur, n is an integer of from 1 to 5, A is an optionally substituted phenyl or an optionally substituted cycloalkyl ring, X is a direct bond, a Calkylene, a Calkenylene, an acetylene, &#x2014;CO(O)&#x2014; or a group of sub-formula (i): where Xand Xare independently selected from a direct bond, a Calkylene, a Calkenylene, an acetylene, &#x2014;CO(O)&#x2014; and R, Rand Rare independently selected from hydrogen, halo or cyano, provided that no more than one of R, Rand Ris hydrogen. These compounds have a high dipole moment and may be used as dopants in liquid crystal mixtures.

Liquid crystal compounds

The use of a compound of formula (I) wherein Ris an alkyl or alkenyl group, either of which may be optionally interposed with one or more oxygen or sulphur atoms, Ris an alkyl or alkenyl group, Y' and Y&#x2033; are independently selected from oxygen or sulphur, n is an integer from 1 to 5, X is a direct bond or a Calkylene or Calkenylene chain, and A is group comprising one or two rings which are independently selected from aryl, heterocylic or cycloalkyl rings, and when there are two rings, they are bonded together directly or by way of a Calkylene or Calkenylene group, for increasing the u.v. stability of a liquid crystal mixture. The compounds of formula (I) are u.v. stable and are useful in liquid crystal devices which are exposed to high levels of u.v. light such as phosphor display cells. Certain compounds are novel and these form a further aspect of the invention.

Liquid-crystalline media comprising one or more compounds of the formula Iin which R, R, L and r are as defined herein, are suitable for use in, for example, TN and STN liquid crystal displays

1,4-Di-(trans-4-cyclohexyl)benzene derivatives and their use in liquid crystal media and liquid crystal devices

A tetrahydropyran derivative comprising at least three cyclic rings and one aromatic endgroup of the formula Aa process for preparing said tetrahydropyran derivatives, and the use of said tetrahydropyran derivatives as a component in a liquid crystal composition.

Pyrans as liquid crystals

Tetrahydropyran derivatives having at least one ester group (&#x2014;CO&#x2014;O&#x2014;) and at least one group &#x2014;CN, &#x2014;NCS,&#x2014;F, &#x2014;Cl, &#x2014;OCHF, &#x2014;OCF, &#x2014;CF, &#x2014;OCHFCF, &#x2014;OCFCHFCF, SF, or &#x2014;OCFCF; a process for preparing said tetrahydropyran derivatives, and the use of said tetrahydropyran derivatives as a component in a liquid crystal composition.

Liquid crystalline alkenyl compounds incorporating an heterocyclic five-membered ring

Liquid crystalline compounds useful in super twisted nematic liquid crystal displays are described and have the formula:

Liquid crystalline (E,E)-butadiene compounds and mixtures and devices containing such compounds

Liquid crystal alkenyl bicyclo&lsqb;2.2.2&rsqb;octanes and mixtures and devices containing such compounds

Liquid crystalline (E, E)-butadiene compounds and mixtures and devices

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Chilworth, United Kingdom

Warren L Duffy