Patents Assigned to Rolic AG
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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
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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
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Publication number: 20160276592Abstract: The invention relates to conducting and semi-conducting photoreactive compounds, represented by the general formula (I), to the use of these compounds for the preparation of oriented and/or orientation layers; and to their use in the construction of unstructured and structured optical, electro optical or optoelectronic elements and multi-layer systems.Type: ApplicationFiled: November 21, 2014Publication date: September 22, 2016Applicant: ROLIC AGInventors: Mohammed IBN-ELHAJ, Frédéric LINCKER
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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
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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
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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
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Patent number: 9321962Abstract: Linearly photopolymerized (LPP) orientation layers for liquid crystals, that is to say liquid crystal orientation layers, are oriented and crosslinked by means of linearly polarized light. The properties of an LPP orientation layer, such as the angle of tilt, surface wetting, voltage holding ratio and anchoring energy, can be adjusted and/or improved by mixing further substances into the starting material for the preparation of the orientation layer.Type: GrantFiled: March 30, 2006Date of Patent: April 26, 2016Assignee: ROLIC AGInventors: Martin Schadt, Hubert Seiberle, Olivier Muller
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Patent number: 9322956Abstract: The invention relates to photo-alignment layers for planar alignment of liquid crystals. Photo-alignment layers according to the invention exhibit a characteristic wavelength dependency of the dichroism in the uv wavelength range. The invention further relates to methods for providing such photo-alignment layers as well as liquid crystal devices containing them.Type: GrantFiled: September 28, 2012Date of Patent: April 26, 2016Assignee: ROLIC AGInventors: Mohammed Ibn-Elhaj, Eva Veenstra, Manuel Koechlin
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Publication number: 20160083655Abstract: The present invention relates to novel compounds that are particularly useful for the alignment, especially photoalignment, of slave material, especially liquid crystals for optical or electro-optical applications, such as security applications, liquid crystal devices or optical or electro-optical films.Type: ApplicationFiled: May 22, 2014Publication date: March 24, 2016Applicant: ROLIC AGInventors: Izabela BURY S. PIRES, Sabrina CHAPPELLET, Mohammed IBN-ELHAJ, Frédéric LINCKER
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Patent number: 9097938Abstract: The present invention relates to polymer, homo- or copolymer or oligomer for the photoalignment of liquid crystals comprising a main chain and a side chain, wherein the side chain comprises a difluoromethylene group, compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).Type: GrantFiled: April 19, 2011Date of Patent: August 4, 2015Assignee: ROLIC AGInventors: Jean-Francois Eckert, Satish Palika, Andreas Schuster
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Publication number: 20150179976Abstract: A radiation curable resin composition comprising: (A) metal oxide particles; (B) at least one photoinitiator, preferably a radical photoinitiator, or any mixture thereof; (C) at least one acrylate or methacrylate component with a ClogP higher than 2, preferably higher than 4, more preferably higher than 5, or any mixture thereof; (D) at least one monofunctional acrylate or methacrylate diluent component, preferably with a viscosity below 40 mPa·s at 20° C., or any mixture thereof; (E) at least one acrylate or methacrylate component with functionality equal or higher than 3, preferably 3 or 4, or any mixture thereof; can be advantageously used, for example, in multilayer barrier stacks for the production of organic opto-electric or opto-electronic device, such as Organic Light Emitting Diode (OLED).Type: ApplicationFiled: July 16, 2013Publication date: June 25, 2015Applicant: ROLIC AGInventors: Emilie Galand, Zakaria Belbakra, Zoubair Cherkaoui, Richard Frantz
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Publication number: 20150125664Abstract: Sub-micron-structured (nanostructured) polymer film or coatings are made by coating a substrate with a mixture of materials. One of the materials is removed using a selective solvent, leaving pores or other nanostructure. The substrate may be grooved, providing a competing nanostructure. The coating may act as an antireflective coating, optical retarder, optical diffuser, or orientation layer.Type: ApplicationFiled: November 4, 2014Publication date: May 7, 2015Applicant: ROLIC AGInventors: Hubert SEIBERLE, Martin SCHADT, Mohammed IBN-ELHAJ, Carsten BENECKE, Klaus SCHMITT
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Publication number: 20150109597Abstract: The present invention relates to an apparatus which allows producing elements with individually patterned anisotropic properties, where the pattern may vary from element to element. An apparatus according to the invention comprises a support for a substrate and an exposure unit for providing spatially modulated aligning light with a first polarization plane, wherein the exposure unit contains a light source, a spatial light modulator, which can be controlled electronically, for example by a computer, and a projection lens. The present invention furthermore relates to a method for fast production of elements with individually patterned anisotropic properties using such an apparatus.Type: ApplicationFiled: May 13, 2013Publication date: April 23, 2015Applicant: ROLIC AGInventors: Klaus Schmitt, Hubert Seiberle
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Patent number: 8951616Abstract: The invention relates to polymerizable liquid crystals compound (I) having a liquid crystalline phase and to liquid crystalline compositions comprising compounds (I), their use as birefringence layer.Type: GrantFiled: July 5, 2010Date of Patent: February 10, 2015Assignee: Rolic AGInventors: Jean Francois Eckert, Martin Roth
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Patent number: 8906458Abstract: Sub-micron-structured (nanostructured) polymer film or coatings are made by coating a substrate with a mixture of materials. One of the materials is removed using a selective solvent, leaving pores or other nanostructure. The substrate may be grooved, providing a competing nanostructure. The coating may act as an antireflective coating, optical retarder, optical diffuser, or orientation layer.Type: GrantFiled: January 21, 2009Date of Patent: December 9, 2014Assignee: Rolic AGInventors: Hubert Seiberle, Martin Schadt, Mohammed Ibn-Elhaj, Carsten Benecke, Klaus Schmitt
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Publication number: 20140340626Abstract: An element for protection against forgery and/or copying is arranged on a substrate and includes an optically anisotropic layer which has at least two regions with different optical axes, characterized in that the substrate is a reflective polarizer. The optically anisotropic layer can include cross-linked liquid crystal monomers. The anisotropic layer can be placed on an orientation layer. The orientation layer can be in contact with the polarizer and can include a photo-oriented polymer network. A device for protection against forgery and/or copying is characterized in that an element as set forth above and an analyzer are arranged on the same substrate.Type: ApplicationFiled: July 31, 2014Publication date: November 20, 2014Applicant: Rolic AGInventors: Martin SCHADT, Hubert SEIBERLE
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Patent number: 8840146Abstract: The present invention relates to an element comprising a surface area with a specific, optically effective surface relief microstructure (12). The surface relief microstructure has a surface modulation of top regions (13) and bottom regions (14), wherein in a first lateral direction of the surface area there is in average at least one transition from a top to a bottom region or vice versa within every 20 micrometer, and in a second lateral direction of the mask, which is perpendicular to the first direction, there is in average at least one transition from a first to a second zone or vice versa within every 200 micrometer. In the microstructure, (i) in the first direction the lateral arrangement of the transitions is non-periodic, and (ii) the top regions substantially lie in the same top relief plateau (15) and the bottom regions substantially lie in the same bottom relief plateau (16).Type: GrantFiled: May 7, 2007Date of Patent: September 23, 2014Assignee: Rolic AGInventor: Martin Stalder
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Patent number: 8830425Abstract: An optical component includes a birefringent liquid-crystal layer, which has at least two regions with different optical axes, wherein an optical delay of the liquid-crystal layer in each of the at least two regions depends on an angle of observation that differs from the angle of observation of other of the at least two regions.Type: GrantFiled: September 4, 2013Date of Patent: September 9, 2014Assignee: Rolic AGInventors: Martin Schadt, Hubert Seiberle
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Publication number: 20140249244Abstract: 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: ApplicationFiled: September 28, 2012Publication date: September 4, 2014Applicant: ROLIC AGInventors: Sabrina Chappellet, Jean-Francois Eckert, Mohammed Ibn-Elhaj, Frederic Lincker, Satish Palika, Hubert Seiberle, Qian Tang, Eva Veenstra
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Publication number: 20140226115Abstract: The invention relates to photo-alignment layers for planar alignment of liquid crystals. Photo-alignment layers according to the invention exhibit a characteristic wavelength dependency of the dichroism in the uv wavelength range. The invention further relates to methods for providing such photo-alignment layers as well as liquid crystal devices containing them.Type: ApplicationFiled: September 28, 2012Publication date: August 14, 2014Applicant: ROLIC AGInventors: Mohammed Ibn-Elhaj, Eva Veenstra, Manuel Koechlin