Dynamic signage, glazed and patterned PDLC devices and methods for creating thereof

    公开(公告)号:US11493797B2

    公开(公告)日:2022-11-08

    申请号:US15520449

    申请日:2015-10-19

    Applicant: GAUZY LTD.

    Abstract: A polymer dispersed liquid crystal (PDLC) film, comprising: at least one first transparent flexible film coated with conductive material; at least one liquid crystal dispersion, allocated between said at least one first transparent flexible film and at least one second transparent flexible film; at least one second transparent flexible film coated with conductive material; where the PDLC comprises a pattern or a signage. Furthermore, the invention comprises a multichannel controller that enables independent control of each segment of the pattern.

    Advanced polymer dispersed liquid crystal (PDLC) for display projection screens

    公开(公告)号:US11768430B2

    公开(公告)日:2023-09-26

    申请号:US15740672

    申请日:2016-06-30

    Applicant: GAUZY LTD

    CPC classification number: G03B21/62 G02F1/1334 G03B21/56

    Abstract: An active or passive PDLC projection screen comprising: at least two transparent metalized or non-metalized polymer supports; at least one layer of liquid crystal dispersions located between said at least two transparent metalized polymer supports; electrical components to control the behavior of said PDLC projection screen; wherein said PDLC projection screen have a total light transmittance Tt of about 70 to 90%, a diffusion transmittance Dt of about 0 to 10%, a clarity C of 90 to 97% and a haze value H of about 0 to 3%, measured in accordance with either ASTM D 1003-13, ISO 13468-1:1996 or ISO 13468-2:1999; further wherein said PDLC projection screen is manufactured by methods of release sheets support.

    Advanced liquid crystal film for anti motion sickness and methods thereof

    公开(公告)号:US11175522B2

    公开(公告)日:2021-11-16

    申请号:US16301077

    申请日:2017-05-10

    Applicant: GAUZY LTD

    Abstract: A system to prevent motion sickness to at least one passenger in a moving vehicle, comprising: at least one liquid crystal film; at least one power dimmer apparatus operative to provide AC current to said at least one liquid crystal film; at least one sensor operative to sense the motion of said vehicle; at least one non-transitory computer-readable medium for producing a signal for activating and deactivating said at least one liquid crystal film in a certain frequency by means of said at least one power dimmer apparatus; wherein said activating and deactivating said at least one liquid crystal film is done in form of visual cues directly coordinated by motion sensory inputs provided by said at least one sensor.

    INORGANIC PIGMENTS FOR USE IN LIQUID CRYSTAL DEVICES

    公开(公告)号:US20210189141A1

    公开(公告)日:2021-06-24

    申请号:US16966978

    申请日:2019-01-31

    Applicant: Gauzy Ltd.

    Abstract: A method of preparing non-conductive coated pigment particles for use in liquid crystal applications. A dispersion is prepared of a pigment such as carbon black in a solution comprising a first solvent and a surfactant. The dispersion is disrupted in order to separate agglomerates. A non-conductive coating material is added. In some embodiments of the invention, the non-conductive coating comprises a polymer soluble in the first solvent, and the coating is prepared by addition of a second solvent in which the polymer is insoluble. In other embodiments, the non-conductive coating comprises a metal oxide, and the coating is prepared by addition of a metal alkoxide that hydrolyzes to form the coating. The non-conductive pigment particles are then separated from the supernatant liquid, dried, and reduced to a powder. Liquid crystal devices comprising the particles typically have a haze of less than 7% and a total transmittance of >55%.

    Device for producing and testing electrical switchable glasses and method of doing the same

    公开(公告)号:US09910303B2

    公开(公告)日:2018-03-06

    申请号:US15309262

    申请日:2015-05-04

    Applicant: GAUZY LTD.

    Abstract: Electrical switchable glasses production comprising the steps of: (a) providing a first and second cover glass; (b) providing a PDLC or other electrically switchable film; (c) providing a first and second layer of adhesive interlayer; (d) providing a PDLC inspection station further comprising: (i) a levelled-up table; (ii) means for inspecting properties of the PDLC film and/or glasses selected from the group consisting of electric properties, optical properties, mechanical properties and any combination thereof; (e) placing the first cover glass onto the levelled-up table; (f) spreading a first layer of adhesive interlayer (g) spreading the PDLC film over the previously placed adhesive interlayer; (h) spreading a second layer of adhesive interlayer; (i) covering the PDLC film by means of the second cover glass; (j) laminating the PDLC film between the first and second cover glasses; and (k) inspecting the glass properties by means of the PDLC inspection station before and after laminating the PDLC film.

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