Patents by Inventor Owain Parri

Owain Parri has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20120224245
    Abstract: The invention relates to a polymerisable LC material with negative optical dispersion, a polymer film with negative optical dispersion obtainable from such a material, and the use of the polymerisable LC material and polymer film in optical, electrooptical, electronic, semiconducting or luminescent components or devices.
    Type: Application
    Filed: October 6, 2010
    Publication date: September 6, 2012
    Applicant: MERCK PATENT GESELLSCHAFT MIT BESCRANKTER HAFTUNG
    Inventors: Kevin Adlem, Owain Parri, David Wilkes, Patricia Eileen Saxton
  • Patent number: 7527833
    Abstract: The invention relates to an optically biaxial film with cholesteric structure, methods and materials for its preparation, its use as retardation or compensation film in optical devices like liquid crystal displays, and to compensators and liquid crystal displays comprising such a biaxial retardation film.
    Type: Grant
    Filed: November 6, 2002
    Date of Patent: May 5, 2009
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Kim Slaney, Mark Verrall, Owain Parri, Karl Skjonnemand, Tara Perrett
  • Publication number: 20080143943
    Abstract: The invention relates to a polymerisable liquid crystal (LC) material, to optically biaxial films prepared thereof, to novel polymerisable compounds used therein and to the use of the material and films in optical devices like compensators and LC displays (LCDs).
    Type: Application
    Filed: August 10, 2005
    Publication date: June 19, 2008
    Inventors: Alison Linda May, Peter (Fangyun) Hsu, Tara Perrett, Ashley Smith, Owain Parri
  • Publication number: 20070258024
    Abstract: The invention relates to an optically biaxial film comprising an anisotropic material with deformed helically twisted structure and locally varying birefringence, to methods and materials for its preparation, to its uses as retardation or compensation film in optical devices like liquid crystal displays, and to compensators and liquid crystal displays comprising such a biaxial film.
    Type: Application
    Filed: June 15, 2005
    Publication date: November 8, 2007
    Applicant: MERCK PATENT GMBH
    Inventors: Owain Parri, Tara Perrett, Kim Slaney, Richard Harding, Mark Verrall, Shirley Marden
  • Publication number: 20070242190
    Abstract: The invention relates to a negative birefringent retardation film comprising polymerised liquid crystal (LC) material with helically twisted structure and planar orientation, its use in compensators and electrooptical displays like liquid crystal displays, and to compensators and liquid crystal displays comprising such a negative retardation film.
    Type: Application
    Filed: June 5, 2007
    Publication date: October 18, 2007
    Inventors: Karl SKJONNEMAND, Owain Parri, Donald Graham, Tara Perrett
  • Patent number: 7283188
    Abstract: The invention relates to a compensator comprising a positive and a negative birefringent retardation film, its use in displays and optical elements, and to displays comprising such a compensator.
    Type: Grant
    Filed: May 19, 2003
    Date of Patent: October 16, 2007
    Assignees: Merck Patent GmbH, LG Chemical Ltd.
    Inventors: Jeong Su Yu, Sergey Vasilyevich Belyaev, Byoung Kun Jeon, Karl Skjonnemand, Tara Perrett, Owain Parri
  • Publication number: 20060203158
    Abstract: The invention relates to a compensated liquid crystal display (LCD) of the In Plane Switching (IPS) mode and to a compensator for use in an IPS-LCD.
    Type: Application
    Filed: March 19, 2004
    Publication date: September 14, 2006
    Inventors: Owain Parri, Karl Skjonnemand, Mark Verrall
  • Publication number: 20060193999
    Abstract: The invention relates to an optical film for use in a liquid crystal display that is positioned inside the liquid crystal cell of the display comprising the switchable liquid crystal material, and to an LCD comprising such a film.
    Type: Application
    Filed: March 8, 2004
    Publication date: August 31, 2006
    Inventors: Mark Verall, Andrew Cumming, Richard Harding, Owain Parri
  • Publication number: 20050259200
    Abstract: The invention relates to a negative birefringent retardation film comprising polymerised liquid crystal (LC) material with helically twisted structure and planar orientation, its use in compensators and electrooptical displays like liquid crystal displays, and to compensators and liquid crystal displays comprising such a negative retardation film.
    Type: Application
    Filed: July 11, 2003
    Publication date: November 24, 2005
    Applicant: Merck Patent GmbH
    Inventors: Karl Skjonnemand, Owain Parri, Donald Graham, Tara Perrett
  • Publication number: 20050219447
    Abstract: The invention relates to an optically biaxial film with cholesteric structure, methods and materials for its preparation, its use as retardation or compensation film in optical devices like liquid crystal displays, and to compensators and liquid crystal displays comprising such a biaxial retardation film.
    Type: Application
    Filed: November 6, 2002
    Publication date: October 6, 2005
    Inventors: Kim Slaney, Mark Verrall, Owain Parri, Karl Skjonnemand, Tara Perrett
  • Publication number: 20050179003
    Abstract: The invention relates to an alignment layer comprising a polymerized liquid crystal material with homeotrophic orientation, to methods of its preparation, to polymerizable liquid crystal compositions and liquid crystal polymers used for the preparation of the alignment layer, to liquid crystal devices comprising the alignment layer, and to a method of controlling the electrooptical steepness of a liquid crystal display comprising at least one alignment layer by varying the surface anchoring energy of the alignment layer.
    Type: Application
    Filed: November 22, 2001
    Publication date: August 18, 2005
    Inventors: Michael Heckmeier, Melanie Klassen-Memmer, Georg Lüssem, Kazuaki Tarumi, David Coates, Owain Parri, Mark Verrall, Mark Goulding, Stephen Kitson
  • Publication number: 20050134774
    Abstract: The invention relates to an optical compensator for liquid crystal displays comprising at least one O plate retarder, and at least one twisted A plate retarder with a twist angle ? of more than 90°, and further relates to a liquid crystal display comprising such a compensator.
    Type: Application
    Filed: February 17, 2005
    Publication date: June 23, 2005
    Inventors: David Coates, Owain Parri, Mark Verrall, Peter Masurier
  • Publication number: 20050128395
    Abstract: Homeotropically oriented layers and films of liquid crystals especially on polymeric substrates. The layers and films, which also can be multi-layered films comprising a homeotropically aligned anisotropic film are preparable by application of an orientation layer to the substrate. The orientation layer can be either an organic surfactant which is fixed in a matrix of a polymeric material or an inorganic thin layer such as aluminum or Al2O3.
    Type: Application
    Filed: August 25, 2004
    Publication date: June 16, 2005
    Inventors: David Coates, Owain Parri, Jeremy Ward, David Joicey, Keith Wilbourn, Colum Dickson, John Scott
  • Publication number: 20040095532
    Abstract: The invention relates to a combination of optical films comprising a twisted A-plate retarder and a polarizer, its use in displays and optical elements, and to displays comprising such a combination.
    Type: Application
    Filed: September 12, 2003
    Publication date: May 20, 2004
    Inventors: Owain Parri, Karl Skjonnemand, Kim Slaney, Mark Verrall
  • Publication number: 20040051831
    Abstract: The invention relates to a compensator comprising a positive and a negative birefringent retardation film, its use in displays and optical elements, and to displays comprising such a compensator.
    Type: Application
    Filed: May 19, 2003
    Publication date: March 18, 2004
    Applicants: Merck Patent GmbH, LG Chemical Ltd.
    Inventors: Jeong Su Yu, Sergey Vasilyevich Belyaev, Byoung Jeon, Karl Skjonnemand, Tara Perrett, Owain Parri
  • Publication number: 20020158227
    Abstract: The invention relativ to an electroptical system
    Type: Application
    Filed: March 18, 2002
    Publication date: October 31, 2002
    Applicant: Merck Patent GmbH
    Inventors: David Coates, Owain Parri, Simon Greenfield, Martin Tillin, Mark Goulding, Patrick Nolan
  • Patent number: 5785889
    Abstract: The invention relates to an anisotropic polymer film or polymer net-work obtainable by photopolymerization of at least one mesogene-containing compound, having two side chains attached to a mesogenic core structure one of which is polymerizable, the other of which is capable of forming association dimers by hydrogen bonds.
    Type: Grant
    Filed: October 4, 1996
    Date of Patent: July 28, 1998
    Assignee: Merck Patent Gesellschaft Mit Beschrankter Haftung
    Inventors: Simon Greenfield, Mark John Goulding, Mark Verrall, Owain Parri, George William Gray, David Coates, David Sherrington