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: 11561440Abstract: 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: GrantFiled: February 27, 2018Date of Patent: January 24, 2023Assignee: ROLIC TECHNOLOGIES AGInventors: Jean-Francois Eckert, I. -E. Sophie Blattmann, Yuichiro Yamada, Masato Hoshino, Qian Tang
-
Publication number: 20220105697Abstract: 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: ApplicationFiled: December 17, 2021Publication date: April 7, 2022Applicant: ROLIC AGInventors: Qian TANG, Hubert SEIBERLE, Jean-François ECKERT, Martin ROTH, Thierry BECRET, Herve VISSIERES
-
Publication number: 20220035086Abstract: 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: ApplicationFiled: October 19, 2021Publication date: February 3, 2022Applicant: ROLIC TECHNOLOGIES AGInventors: Fabien Xavier DELBAERE, Richard Frantz, Qian Tang, Jean-Francois Eckert, Patricia Scandiucci De Freitas, Hubert Seiberle
-
Patent number: 11235543Abstract: 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: GrantFiled: March 18, 2019Date of Patent: February 1, 2022Assignee: ROLIC AGInventors: Qian Tang, Hubert Seiberle, Jean-François Eckert, Martin Roth, Thierry Becret, Herve Vissieres
-
Patent number: 11181674Abstract: 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: GrantFiled: July 20, 2017Date of Patent: November 23, 2021Assignee: ROLIC TECHNOLOGIES AGInventors: Fabien Xavier Delbaere, Richard Frantz, Qian Tang, Jean-Francois Eckert, Patricia Scandiucci De Freitas, Hubert Seiberle
-
Publication number: 20200073181Abstract: 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: ApplicationFiled: February 27, 2018Publication date: March 5, 2020Applicant: ROLIC TECHNOLOGIES AGInventors: Jean-Francois ECKERT, I.-E. Sophie BLATTMANN, Yuichiro YAMADA, Masato HOSHINO, Qian TANG
-
Patent number: 10557085Abstract: 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: GrantFiled: March 21, 2016Date of Patent: February 11, 2020Assignee: ROLIC AGInventors: Jean-François Eckert, Thierry Becret, Masato Hoshino, Qian Tang
-
Patent number: 10442994Abstract: 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: GrantFiled: February 12, 2015Date of Patent: October 15, 2019Assignee: ROLIC AGInventors: Jean-François Eckert, Satish Palika, Martin Roth, Qian Tang
-
Publication number: 20190210309Abstract: 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: ApplicationFiled: March 18, 2019Publication date: July 11, 2019Applicant: ROLIC AGInventors: Qian TANG, Hubert SEIBERLE, Jean-François ECKERT, Martin ROTH, Thierry BECRET, Herve VISSIERES
-
Publication number: 20190162889Abstract: 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: ApplicationFiled: July 20, 2017Publication date: May 30, 2019Applicant: ROLIC TECHNOLOGIES AGInventors: Fabien Xavier DELBAERE, Richard FRANTZ, Qian TANG, Jean-Francois ECKERT, Patricia SCANDIUCCI DE FREITAS, Hubert SEIBERLE
-
Patent number: 10286616Abstract: 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: GrantFiled: August 12, 2014Date of Patent: May 14, 2019Assignee: ROLIC AGInventors: Qian Tang, Hubert Seiberle, Jean-François Eckert, Martin Roth, Thierry Becret, Herve Vissieres
-
Patent number: 10208031Abstract: 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: GrantFiled: April 10, 2008Date of Patent: February 19, 2019Assignee: ROLIC AGInventors: Jean-Francois Eckert, Guy Marck, Oliver Muller
-
Publication number: 20180079961Abstract: 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: ApplicationFiled: March 21, 2016Publication date: March 22, 2018Applicant: ROLIC AGInventors: Jean-François ECKERT, Thierry BECRET, Masato HOSHINO, Qian TANG
-
Patent number: 9765235Abstract: 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: GrantFiled: July 24, 2012Date of Patent: September 19, 2017Assignee: ROLIC AGInventors: Jean-Francois Eckert, Satish Palika, Andreas Schuster
-
Publication number: 20170058200Abstract: 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: ApplicationFiled: February 12, 2015Publication date: March 2, 2017Applicant: ROLIC AGInventors: Jean-François ECKERT, Satish PALIKA, Martin ROTH, Qian TANG
-
Patent number: 9499649Abstract: 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: GrantFiled: November 6, 2008Date of Patent: November 22, 2016Assignee: ROLIC AGInventors: Izabela Bury, Jean-Francois Eckert, Olivier Muller, Hubert Seiberle, Peggy Studer
-
Patent number: 9493394Abstract: 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: GrantFiled: September 28, 2012Date of Patent: November 15, 2016Assignee: ROLIC AGInventors: Sabrina Chappellet, Jean-Francois Eckert, Mohammed Ibn-Elhaj, Frederic Lincker, Satish Palika, Hubert Seiberle, Qian Tang, Eva Veenstra
-
Publication number: 20160271894Abstract: 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: ApplicationFiled: August 12, 2014Publication date: September 22, 2016Applicant: ROLIC AGInventors: Qian TANG, Hubert SEIBERLE, Jean-François ECKERT, Martin ROTH, Thierry BECRET, Herve VISSIERES
-
Patent number: 9366906Abstract: The present invention relates to photoreactive compounds that are particularly useful in materials for the alignment of liquid crystals.Type: GrantFiled: August 7, 2012Date of Patent: June 14, 2016Assignee: ROLIC AGInventors: 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: 9334366Abstract: 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: GrantFiled: September 28, 2012Date of Patent: May 10, 2016Assignee: ROLIC AGInventors: Mohammed Ibn-Elhaj, Eva Veenstra, Sabrina Chappellet, Jean-François Eckert, Frederic Lincker, Satish Palika, Valsa Kannookadan, Qian Tang