Patents Assigned to Vlyte Innovations Limited
-
Patent number: 10603988Abstract: A road vehicle capable of autonomous driving has a windshield (10) and a control system (30) being configured to selectively control a regular visible light transmittance of the windshield (10) between two or more electrically switchable light states that provide respective levels of visual access through the windshield (10) from outside the vehicle according to a driving context for the vehicle.Type: GrantFiled: October 4, 2016Date of Patent: March 31, 2020Assignees: Vlyte Innovations Limited, Vlyte LimitedInventor: Donal O'Keeffe
-
Patent number: 10509242Abstract: A switchable light modulator device comprises a fluid layer disposed between opposite spaced apart major surfaces of first and second substrates. Each of the substrates comprise first and second interoperable microstructures formed on the opposite major surfaces. The respective microstructures fit together to join the first and second substrates and to define wall portions for a plurality of cavities, the cavities sealing said fluid in discrete volumes.Type: GrantFiled: March 22, 2016Date of Patent: December 17, 2019Assignee: Vlyte Innovations LimitedInventor: Donal O'Keeffe
-
Patent number: 10324353Abstract: An electrophoretic device (101) comprises a first electrode (60) and a second electrode (60) spaced apart from the first electrode (60). An electrophoretic cell (809) containing an electrophoretic ink (830) and one or more optically-transparent, non-planar, solid polymer elements (808) is located between the electrodes (60). The ink (830) includes charged particles (11) of at least one type suspended in an optically-transparent suspending fluid (820). The refractive indices of the solid polymer elements (808) and the suspending fluid (820) are matched to have a difference of less than 0.0075, and for half or more of the operating temperature range of the device (0° C.-70° C.), the thermo-optic coefficients (temperature coefficient of refractive index per Kelvin) of the solid polymer elements (808) and the suspending fluid (820) are matched to have an arithmetic-mean difference of less than 0.0002/K in magnitude.Type: GrantFiled: October 16, 2014Date of Patent: June 18, 2019Assignees: Vlyte Innovations Limited, Vlyte LimitedInventor: Donal O'Keeffe
-
Patent number: 10067398Abstract: An electrophoretic light attenuator comprises a cell including a first substrate (90), a second substrate (90) spaced apart from the first substrate, a layer arranged between the substrates and containing an electrophoretic ink (30), and a monolayer of closely packed protrusions (2) projecting into the electrophoretic ink (30) and arranged adjacent a surface of the second substrate. The protrusions (2) have surfaces defining a plurality of depressions between adjacent protrusions. The ink (30) includes charged particles (11) of at least one type, the particles being responsive to an electric field applied to the cell to move between a first extreme light state, in which the particles (11) are maximally spread within the cell so as to lie in the path of light through the cell and thus strongly attenuate light transmitted from one substrate to the opposite substrate, and a second extreme light state, in which the particles (11) are maximally concentrated within the depressions so as to let light be transmitted.Type: GrantFiled: March 11, 2014Date of Patent: September 4, 2018Assignee: Vlyte Innovations LimitedInventor: Donal O'Keeffe
-
Publication number: 20180129080Abstract: A switchable light modulator device comprises a fluid layer disposed between opposite spaced apart major surfaces of first and second substrates. Each of the substrates comprise first and second interoperable microstructures formed on the opposite major surfaces. The respective microstructures fit together to join the first and second substrates and to define wall portions for a plurality of cavities, the cavities sealing said fluid in discrete volumes.Type: ApplicationFiled: March 22, 2016Publication date: May 10, 2018Applicant: Vlyte Innovations LimitedInventor: Donal O'Keeffe
-
Patent number: 9651847Abstract: An electrophoretic insulated glass unit (IGU) comprises an electrophoretic laminate and a pane spaced apart from the electrophoretic laminate, the respective inner faces of the laminate and the pane defining a sealed cavity there between. An outer face of the electrophoretic laminate is in contact with an environment. One inner face of the cavity has a coating that is transparent to visible light and which rejects infrared light greater than a cut-off wavelength.Type: GrantFiled: May 16, 2014Date of Patent: May 16, 2017Assignee: Vlyte Innovations LimitedInventor: Donal O'Keeffe
-
Publication number: 20160124284Abstract: An electrophoretic insulated glass unit (IGU) comprises an electrophoretic laminate and a pane spaced apart from the electrophoretic laminate, the respective inner faces of the laminate and the pane defining a sealed cavity there between. An outer face of the electrophoretic laminate is in contact with an environment. One inner face of the cavity has a coating that is transparent to visible light and which rejects infrared light greater than a cut-off wavelength.Type: ApplicationFiled: May 16, 2014Publication date: May 5, 2016Applicant: Vlyte Innovations LimitedInventor: Donal O'Keeffe
-
Publication number: 20160026061Abstract: An electrophoretic light attenuator comprises a cell including a first substrate (90), a second substrate (90) spaced apart from the first substrate, a layer arranged between the substrates and containing an electrophoretic ink (30), and a monolayer of closely packed protrusions (2) projecting into the electrophoretic ink (30) and arranged adjacent a surface of the second substrate. The protrusions (2) have surfaces defining a plurality of depressions between adjacent protrusions. The ink (30) includes charged particles (11) of at least one type, the particles being responsive to an electric field applied to the cell to move between a first extreme light state, in which the particles (11) are maximally spread within the cell so as to lie in the path of light through the cell and thus strongly attenuate light transmitted from one substrate to the opposite substrate, and a second extreme light state, in which the particles (11) are maximally concentrated within the depressions so as to let light be transmitted.Type: ApplicationFiled: March 11, 2014Publication date: January 28, 2016Applicant: Vlyte Innovations LimitedInventor: Donal O'Keeffe
-
Publication number: 20130188239Abstract: A method of manufacturing a reflective display device comprises depositing an electro-optical ink on a substrate, the electro-optical ink comprising a plurality of microencapsulated electro-optical fluid shells dispersed in a polymer pre-cursor. The electro-optical ink is cured to provide an electro-optical layer in which the shells are maintained in a polymer matrix having at least two-phases. At least one of the phases in the polymer matrix has a refractive index differing from the shells. At least one electrode is provided in contact with the electro-optical layer to, in use, control the state of the electro-optical layer.Type: ApplicationFiled: January 23, 2013Publication date: July 25, 2013Applicant: VLYTE INNOVATIONS LIMITEDInventor: Vlyte Innovations Limited
-
Publication number: 20080316395Abstract: A polymer-dispersed liquid crystal system has a continuous polymer structure having defined therein a plurality of discrete bodies of liquid crystal material. The bodies of liquid crystal material exhibit a polydomain operating state in which the liquid crystal material within each body is arranged in multiple domains, each domain being defined by a quantity of liquid crystal material whose molecules have a substantially common identifiable alignment in at least one axis, wherein the resolved alignments of neighbouring domains diverge substantially from one another and are stable over time.Type: ApplicationFiled: June 25, 2008Publication date: December 25, 2008Applicant: Vlyte Innovations LimitedInventor: Donal O'KEEFFE
-
Patent number: 7080784Abstract: A visual display device (1) comprises a visual display panel (5) which comprises an electro-optical medium (17) provided by a cholesteric liquid crystal medium which defines a plurality of pixels (20) which are alternately and selectively operable in a first light transmitting mode for forming a background (40) and a second light scattering mode for forming a character (39) against the background (40). A video projector (35) projects a light beam (37) at a rear major face (34) of the visual display panel (5) which defines an image (38) of a character (39) being displayed on the visual display panel (5).Type: GrantFiled: August 27, 2002Date of Patent: July 25, 2006Assignee: Vlyte Innovations LimitedInventors: Donal O'Keeffe, Albert O'Halloran