Patents by Inventor Rachel Tuffin

Rachel Tuffin 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: 20240116871
    Abstract: The present invention relates to compounds of the formula (1) which are suitable for use in electronic devices, in particular organic electroluminescent devices, and to electronic devices which comprise these compounds.
    Type: Application
    Filed: October 13, 2020
    Publication date: April 11, 2024
    Inventors: Teresa MUJICA-FERNAUD, Hyeon-Hui KANG, Ha-Na SEO, Rachel TUFFIN, IL JUNG
  • Publication number: 20240092789
    Abstract: The present application relates to a compound of the formula (I), to the use thereof in electronic devices, to processes for preparing the compound, and electronic devices comprising the compound.
    Type: Application
    Filed: September 16, 2020
    Publication date: March 21, 2024
    Inventors: Elvira MONTENEGRO, Teresa MUJICA-FERNAUD, Rachel TUFFIN, Frank VOGES, Amir Hossain PARHAM, Alexander Christian COMELY, Antoni MORAGAS SOLA
  • Patent number: 11873438
    Abstract: A liquid-crystalline medium with one or more compounds of the formula IA and, one or more compounds of formula BS and the use thereof in an active-matrix display, in particular in a VA, IPS, U-IPS, FFS, UB-FFS, SA-VA, SA-FFS, PS-VA, PS-OCB, PS-IPS, PS-FFS, PS-UB-FFS, PS-poli-VA, PS-TN, polymer stabilized SA-VA or polymer stabilized SA-FFS display.
    Type: Grant
    Filed: December 18, 2019
    Date of Patent: January 16, 2024
    Assignee: MERCK PATENT GMBH
    Inventors: Rachel Tuffin, Matthias Bremer, Marcus Reuter
  • Publication number: 20230373941
    Abstract: The present application relates to compounds of the formula (1), to processes for preparing these compounds, to the use of these compounds in electronic devices and to electronic devices containing at least one of these compounds.
    Type: Application
    Filed: August 20, 2021
    Publication date: November 23, 2023
    Inventors: Elvira MONTENEGRO, Teresa MUJICA-FERNAUD, Rachel TUFFIN
  • Publication number: 20230159434
    Abstract: The present application relates to an amine compound, which is suitable for use in electronic devices, in particular organic electroluminescent devices (OLEDs). Furthermore, it relates to electronic devices comprising the compound, in particular OLEDs. Furthermore, it relates to a method for synthesizing the above-mentioned amine compound.
    Type: Application
    Filed: February 4, 2021
    Publication date: May 25, 2023
    Inventors: Elvira MONTENEGRO, Teresa MUJICA-FERNAUD, Rachel TUFFIN, Nicolas BLOUIN
  • Publication number: 20220081617
    Abstract: The invention relates to a liquid-crystalline medium comprising one or more compounds of the formula IA and, one or more compounds of formula BS wherein the occurring groups have the meanings indicated in claim 1, and to the use thereof in an active-matrix display, in particular in a VA, IPS, U-IPS, FFS, UB-FFS, SA-VA, SA-FFS, PS-VA, PS-OCB, PS-IPS, PS-FFS, PS-UB-FFS, PS-posi-VA, PS-TN, polymer stabilised SA-VA or polymer stabilised SA-FFS display.
    Type: Application
    Filed: December 18, 2019
    Publication date: March 17, 2022
    Applicant: MERCK PATENT GMBH
    Inventors: Rachel TUFFIN, Matthias BREMER, Marcus REUTER
  • Patent number: 11124705
    Abstract: The invention relates to a light modulation element comprising a pair of substrates, one or more optical films located on the inner side of one of the substrates, an electrode structure capable of inducing an electric field substantially in parallel to the substrates main plane, and a homogenously aligned liquid crystalline medium which is obtainable from a photoalignment component A) and a liquid-crystalline component B). Furthermore, the invention relates process of production of the light modulation element, to the use of the light modulation element in an electro optical device and to an electro optical device comprising said light modulation element.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: September 21, 2021
    Assignee: MERCK PATENT GMBH
    Inventors: Phil Baker, Rachel Tuffin, Joseph Sargent, Ian Sage
  • Patent number: 10793776
    Abstract: The use of functionalized polymerizable polyvinyl alcohol as a binder or matrix for a dispersion of nanoparticles, wherein the nanoparticles respectively comprise a polymeric shell and a core containing a liquid crystalline medium. Composites comprising the functionalized polymer and the nanocapsules, methods for preparing the composites and electro-optical devices containing such composites.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: October 6, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Hassan Arasi, Mariam Namutebi, Rachel Tuffin
  • Publication number: 20200299579
    Abstract: The invention relates to a liquid crystal medium comprising one or more dielectrically negative compounds and one or more dielectrically positive compounds, characterized in that the medium as a whole exhibits a dielectrically anisotropy (??) in the range from ?0.25 to +0.25. Furthermore, the invention relates to a method of production of such medium and to the use of such medium in a light modulation element utilizing flexoelectric switching. Moreover, the invention relates to a light modulation element utilizing flexoelectric switching comprising the described medium, to a method of production of such light modulation element, to the use of such light modulation element in electro-optical devices and to these electro-optical devices as such.
    Type: Application
    Filed: November 19, 2018
    Publication date: September 24, 2020
    Applicant: MERCK PATENT GMBH
    Inventors: Simon SIEMIANOWSKI, Rachel TUFFIN, Ian SAGE
  • Patent number: 10711196
    Abstract: Bimesogenic compounds of formula I and their use in liquid crystal media and in flexoelectric liquid crystal devices.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: July 14, 2020
    Assignee: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Mariam Namutebi
  • Patent number: 10669484
    Abstract: The present invention relates to a process of preparing a light modulation element of the PS-ULH (polymer stabilised ULH) type, which allows to reduce the operational voltage and allows to improve the switching time of the light modulation element.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: June 2, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Rachel Tuffin, Rebecca Proctor, Simon Siemianowski
  • Publication number: 20200123446
    Abstract: The invention relates to a light modulation element comprising a pair of substrates, one or more optical films located on the inner side of one of the substrates, an electrode structure capable of inducing an electric field substantially in parallel to the substrates main plane, and a homogenously aligned liquid crystalline medium which is obtainable from a photoalignment component A) and a liquid-crystalline component B). Furthermore, the invention relates process of production of the light modulation element, to the use of the light modulation element in an electro optical device and to an electro optical device comprising said light modulation element.
    Type: Application
    Filed: April 17, 2018
    Publication date: April 23, 2020
    Applicant: Merck Patent GmbH
    Inventors: Phil BAKER, Rachel TUFFIN, Joseph SARGENT, Ian SAGE
  • Patent number: 10626330
    Abstract: The invention relates to a method of manufacturing a liquid crystal display device wherein a liquid crystal mixture having positive dielectric anisotropy or negative dielectric anisotropy is interposed between a first substrate and a second substrate, the liquid crystal mixture comprising liquid crystal molecules, a self assembling photoalignment agent, a polymerisable compound, and wherein said LC mixture is photoaligned by irradiation with linearly polarised ultraviolet light and then cured by irradiation with ultraviolet light.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: April 21, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Kevin Adlem, Alex Davis, Rachel Tuffin, Mark Goebel, Graziano Archetti, Rocco Fortte, Karl Skjonnemand, Ian Charles Sage
  • Patent number: 10465115
    Abstract: The invention relates to cinnamic acid derivatives of formula S wherein the radicals have the meaning indicated in claim 1, to a process for their preparation and their use as self assembling photoalignment agent in liquid crystal mixtures. The invention further relates to a process for the fabrication of a liquid crystal (LC) display device with homogeneous alignment by photoaligning a liquid crystal mixture with positive or negative dielectric anisotropy comprising one or more compounds of formula S and optionally a polymerizable compound, to the liquid crystal mixture comprising the self assembling photoaligning agent and optionally the polymerizable compound and to the LC display produced by said process.
    Type: Grant
    Filed: November 18, 2016
    Date of Patent: November 5, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Kevin Adlem, Alex Davis, Hassan Arasi, Joseph Sargent, Rachel Tuffin, Ian Charles Sage
  • Patent number: 10450508
    Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula l in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
    Type: Grant
    Filed: June 19, 2015
    Date of Patent: October 22, 2019
    Assignee: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Hassan Arasi, Benjamin Snow
  • Patent number: 10416518
    Abstract: The invention provides a light modulation element comprising a flexoelectric polarisable liquid-crystalline medium, characterized in that the switching from a boundary state A to a boundary state B comprises a combination of a distinct flexoelectric switching regime and a distinct dielectric switching regime upon application of an electric field. Furthermore, the present invention relates to the use of such a light modulation element in an electro-optical device, i.e. an LCD display device, and electrooptical devices comprising the light modulation element according to the present invention. Moreover, the invention relates to a method of production of the light modulation element according to the present invention.
    Type: Grant
    Filed: November 28, 2014
    Date of Patent: September 17, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Rachel Tuffin, Rebecca Proctor, Simon Siemianowski, Karl Skjonnemand, Owain Llyr Parri, Geoffrey Luckhurst
  • Patent number: 10392561
    Abstract: The invention relates to bimesogenic compounds of formula I wherein R11, R12, MG11, MG12, X11, X12 and Sp1 have the meaning given in claim 1, to the use of bimesogenic compounds of formula I in liquid crystal media and particular to flexoelectric liquid crystal devices comprising a liquid crystal medium according to the present invention.
    Type: Grant
    Filed: December 8, 2015
    Date of Patent: August 27, 2019
    Assignee: Merck Patent GmbH
    Inventors: Detlef Pauluth, Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Hassan Arasi, Patricia Eileen Saxton
  • Publication number: 20190127642
    Abstract: The present invention relates to compositions for nanoencapsulation which comprise the mesogenic medium as set forth in claim 1, one or more polymerizable compounds and one or more surfactants, to nanocapsules containing the mesogenic medium and to their use in electro-optical devices.
    Type: Application
    Filed: April 10, 2017
    Publication date: May 2, 2019
    Applicant: Merck Patent GmbH
    Inventors: Kevin ADLEM, Patricia SAXTON, Rachel TUFFIN, Benjamin SNOW, Mariam NAMUTEBI, James ALLEN, Vicki COOK, Hassan ARASI, Mark GOEBEL
  • Publication number: 20190106627
    Abstract: The use of functionalized polymerizable polyvinyl alcohol as a binder or matrix for a dispersion of nanoparticles, wherein the nanoparticles respectively comprise a polymeric shell and a core containing a liquid crystalline medium. Composites comprising the functionalized polymer and the nanocapsules, methods for preparing the composites and electro-optical devices containing such composites.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Applicant: MERCK PATENT GMBH
    Inventors: Hassan ARASI, Mariam NAMUTEBI, Rachel TUFFIN
  • Patent number: 10190049
    Abstract: The invention relates to mesogenic media comprising one or more bimesogenic compounds, one or more nematogenic compound, one or more chiral compound and a compound of formula I, R11-A11-(Z12-A12)m-AG??I in which, the parameter A11, A12, Z12 and R11 have one of the meanings as given in claim 1, and to the use of these mesogenic media in liquid crystal devices and in particular in flexoelectric liquid crystal devices, as well as to liquid crystal devices comprising a liquid crystal medium according to the present invention.
    Type: Grant
    Filed: June 15, 2015
    Date of Patent: January 29, 2019
    Assignee: MERCK PATENT GMBH
    Inventors: Owain Ilyr Parri, Graziano Archetti, Simon Siemianowski, Izumi Saito, Rachel Tuffin