Patents by Inventor Jean-Francois Eckert

Jean-Francois Eckert 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).

  • Patent number: 11561440
    Abstract: The present invention relates to a photoalignment composition for the alignment of liquid crystals and the stabilization of the pre-tilt angle in liquid crystal layers. Further the present invention relates to the liquid crystal alignment film and coating layer prepared from the said composition and the use to fabricate optical and electrooptical elements and devices.
    Type: Grant
    Filed: February 27, 2018
    Date of Patent: January 24, 2023
    Assignee: ROLIC TECHNOLOGIES AG
    Inventors: Jean-Francois Eckert, I. -E. Sophie Blattmann, Yuichiro Yamada, Masato Hoshino, Qian Tang
  • Publication number: 20220105697
    Abstract: A photo-alignable object has a thickness of more than 2 ?m. The photo-alignable object can be in the form of a free standing film. Also, the photo-alignable object can have a topographical surface structure. The depth of the topographical surface structure can be larger than 100 nm, and preferably the depth of the topographical surface structure is larger than 1 ?m.
    Type: Application
    Filed: December 17, 2021
    Publication date: April 7, 2022
    Applicant: ROLIC AG
    Inventors: Qian TANG, Hubert SEIBERLE, Jean-François ECKERT, Martin ROTH, Thierry BECRET, Herve VISSIERES
  • Publication number: 20220035086
    Abstract: The present invention relates to a method for manufacturing an optical element including a layer comprising anisotropic optical function and alignment capability. The layer is formed from a composition comprising polymerizable liquid crystals and one or more photo-orientable substances. Alignment on top of the layer is achieved by exposure to linearly polarized light.
    Type: Application
    Filed: October 19, 2021
    Publication date: February 3, 2022
    Applicant: ROLIC TECHNOLOGIES AG
    Inventors: Fabien Xavier DELBAERE, Richard Frantz, Qian Tang, Jean-Francois Eckert, Patricia Scandiucci De Freitas, Hubert Seiberle
  • Patent number: 11235543
    Abstract: A photo-alignable object has a thickness of more than 2 ?m. The photo-alignable object can be in the form of a free standing film. Also, the photo-alignable object can have a topographical surface structure. The depth of the topographical surface structure can be larger than 100 nm, and preferably the depth of the topographical surface structure is larger than 1 ?m.
    Type: Grant
    Filed: March 18, 2019
    Date of Patent: February 1, 2022
    Assignee: ROLIC AG
    Inventors: Qian Tang, Hubert Seiberle, Jean-François Eckert, Martin Roth, Thierry Becret, Herve Vissieres
  • Patent number: 11181674
    Abstract: The present invention relates to a method for manufacturing an optical element including a layer comprising anisotropic optical function and alignment capability. The layer is formed from a composition comprising polymerizable liquid crystals and one or more photo-orientable substances. Alignment on top of the layer is achieved by exposure to linearly polarized light.
    Type: Grant
    Filed: July 20, 2017
    Date of Patent: November 23, 2021
    Assignee: ROLIC TECHNOLOGIES AG
    Inventors: Fabien Xavier Delbaere, Richard Frantz, Qian Tang, Jean-Francois Eckert, Patricia Scandiucci De Freitas, Hubert Seiberle
  • Publication number: 20200073181
    Abstract: The present invention relates to a photoalignment composition for the alignment of liquid crystals and the stabilization of the pre-tilt angle in liquid crystal layers. Further the present invention relates to the liquid crystal alignment film and coating layer prepared from the said composition and the use to fabricate optical and electrooptical elements and devices.
    Type: Application
    Filed: February 27, 2018
    Publication date: March 5, 2020
    Applicant: ROLIC TECHNOLOGIES AG
    Inventors: Jean-Francois ECKERT, I.-E. Sophie BLATTMANN, Yuichiro YAMADA, Masato HOSHINO, Qian TANG
  • Patent number: 10557085
    Abstract: The invention relates to a photoalignment composition comprising at least a single photoalignment polymer, preferably a homo- or a copolymer having at least one photoreactive group; and at least a single solvent of formula (I) (R—CO—O—R?), wherein R and R? are independently from each other straight-chain or branched alkyl chain, with the proviso that at least one alkyl chain is branched. Further, the present invention relates to the use of this composition for coating or printing, especially for printing, more especially for inkjet or offset printing processes, and most especially for an offset printing process. In addition, the present invention relates to the use of the photoalignment composition for the preparation of orientation layers for liquid crystals and in the construction of unstructured and structured optical elements and multi-layer systems, especially liquid crystal displays, LCDs.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: February 11, 2020
    Assignee: ROLIC AG
    Inventors: Jean-François Eckert, Thierry Becret, Masato Hoshino, Qian Tang
  • Patent number: 10442994
    Abstract: The present invention relates to a photo-alignment composition for the alignment of liquid crystals. Further the present invention relates to the liquid crystal alignment film and coating layer prepared from the said composition and the use to fabricate optical and electrooptical elements and devices.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: October 15, 2019
    Assignee: ROLIC AG
    Inventors: Jean-François Eckert, Satish Palika, Martin Roth, Qian Tang
  • Publication number: 20190210309
    Abstract: A photo-alignable object has a thickness of more than 2 ?m. The photo-alignable object can be in the form of a free standing film. Also, the photo-alignable object can have a topographical surface structure. The depth of the topographical surface structure can be larger than 100 nm, and preferably the depth of the topographical surface structure is larger than 1 ?m.
    Type: Application
    Filed: March 18, 2019
    Publication date: July 11, 2019
    Applicant: ROLIC AG
    Inventors: Qian TANG, Hubert SEIBERLE, Jean-François ECKERT, Martin ROTH, Thierry BECRET, Herve VISSIERES
  • Publication number: 20190162889
    Abstract: The present invention relates to a method for manufacturing an optical element including a layer comprising anisotropic optical function and alignment capability. The layer is formed from a composition comprising polymerizable liquid crystals and one or more photo-orientable substances. Alignment on top of the layer is achieved by exposure to linearly polarized light.
    Type: Application
    Filed: July 20, 2017
    Publication date: May 30, 2019
    Applicant: ROLIC TECHNOLOGIES AG
    Inventors: Fabien Xavier DELBAERE, Richard FRANTZ, Qian TANG, Jean-Francois ECKERT, Patricia SCANDIUCCI DE FREITAS, Hubert SEIBERLE
  • Patent number: 10286616
    Abstract: The present invention relates to a method for manufacturing a photo-alignable object. The invention further provides compositions for the manufacturing of a photo-alignable object as well as different embodiments of photo-alignable objects and devices using them.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: May 14, 2019
    Assignee: ROLIC AG
    Inventors: Qian Tang, Hubert Seiberle, Jean-François Eckert, Martin Roth, Thierry Becret, Herve Vissieres
  • Patent number: 10208031
    Abstract: A diamine compound of formula (I) is proposed as well as polymers, copolymers, polyamic acids, polyamic acid esters, or polyimides based on such compound.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: February 19, 2019
    Assignee: ROLIC AG
    Inventors: Jean-Francois Eckert, Guy Marck, Oliver Muller
  • Publication number: 20180079961
    Abstract: The invention relates to a photoalignment composition comprising at least a single photoalignment polymer, preferably a homo- or a copolymer having at least one photoreactive group; and at least a single solvent of formula (I) (R—CO—O—R?), wherein R and R? are independently from each other straight-chain or branched alkyl chain, with the proviso that at least one alkyl chain is branched. Further, the present invention relates to the use of this composition for coating or printing, especially for printing, more especially for inkjet or offset printing processes, and most especially for an offset printing process. In addition, the present invention relates to the use of the photoalignment composition for the preparation of orientation layers for liquid crystals and in the construction of unstructured and structured optical elements and multi-layer systems, especially liquid crystal displays, LCDs.
    Type: Application
    Filed: March 21, 2016
    Publication date: March 22, 2018
    Applicant: ROLIC AG
    Inventors: Jean-François ECKERT, Thierry BECRET, Masato HOSHINO, Qian TANG
  • Patent number: 9765235
    Abstract: The present invention relates to a copolymer for the photoalignment of liquid crystals comprising a photoreactive group as given below in formula (I), compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).
    Type: Grant
    Filed: July 24, 2012
    Date of Patent: September 19, 2017
    Assignee: ROLIC AG
    Inventors: Jean-Francois Eckert, Satish Palika, Andreas Schuster
  • Publication number: 20170058200
    Abstract: The present invention relates to a photo-alignment composition for the alignment of liquid crystals. Further the present invention relates to the liquid crystal alignment film and coating layer prepared from the said composition and the use to fabricate optical and electrooptical elements and devices.
    Type: Application
    Filed: February 12, 2015
    Publication date: March 2, 2017
    Applicant: ROLIC AG
    Inventors: Jean-François ECKERT, Satish PALIKA, Martin ROTH, Qian TANG
  • Patent number: 9499649
    Abstract: The present invention relates to a photoreactive compound for the preparation of a photoalignment material comprising thioether units, wherein the photoreactive compound is comprising at least one ene group and at least one photoalignment group, and further to a composition comprising at least one photoreactive compound and at least one polythiol, the use of this composition for the preparation of photoalignment materials, and their use for the alignment of liquid crystals or liquid crystal polymers, in electro-optical and optical elements, systems and devices.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: November 22, 2016
    Assignee: ROLIC AG
    Inventors: Izabela Bury, Jean-Francois Eckert, Olivier Muller, Hubert Seiberle, Peggy Studer
  • Patent number: 9493394
    Abstract: The present invention relates to polymer, homo- or copolymer or oligomer for the photoalignment of liquid crystals, especially for the planar orientation of liquid crystals, comprising a main chain and a side chain, wherein the side chain and/or main chain comprises a polar group, compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: November 15, 2016
    Assignee: ROLIC AG
    Inventors: Sabrina Chappellet, Jean-Francois Eckert, Mohammed Ibn-Elhaj, Frederic Lincker, Satish Palika, Hubert Seiberle, Qian Tang, Eva Veenstra
  • Publication number: 20160271894
    Abstract: The present invention relates to a method for manufacturing a photo-alignable object. The invention further provides compositions for the manufacturing of a photo-alignable object as well as different embodiments of photo-alignable objects and devices using them.
    Type: Application
    Filed: August 12, 2014
    Publication date: September 22, 2016
    Applicant: ROLIC AG
    Inventors: Qian TANG, Hubert SEIBERLE, Jean-François ECKERT, Martin ROTH, Thierry BECRET, Herve VISSIERES
  • Patent number: 9366906
    Abstract: The present invention relates to photoreactive compounds that are particularly useful in materials for the alignment of liquid crystals.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: June 14, 2016
    Assignee: ROLIC AG
    Inventors: Frederic Lincker, Izabela Bury S. Pires, Sabrina Chappellet, Patricia Scandiucci De Freitas, Mohammed Ibn-Elhaj, Qian Tang, Satish Palika, Masato Hoshino, Jean-Francois Eckert
  • Patent number: 9334366
    Abstract: The present invention relates to polymer, homo- or copolymer or oligomer, which, when irradiated with polarised light orients perpendicular to the polarization direction of polarized actinic light, for the photoalignment of liquid crystals, especially for the planar orientation of liquid crystals, and which derives from at least one monomer (I), compositions thereof, and its use for optical and electro optical devices, such as, liquid crystal devices (LCDs), especially for planar orientation of liquid crystals.
    Type: Grant
    Filed: September 28, 2012
    Date of Patent: May 10, 2016
    Assignee: ROLIC AG
    Inventors: Mohammed Ibn-Elhaj, Eva Veenstra, Sabrina Chappellet, Jean-François Eckert, Frederic Lincker, Satish Palika, Valsa Kannookadan, Qian Tang