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    Optical film structures and articles for hidden displays and display devices
    61.
    发明授权
    Optical film structures and articles for hidden displays and display devices 有权

    公开(公告)号：US11378719B2

    公开(公告)日：2022-07-05

    申请号：US17004562

    申请日：2020-08-27

    Applicant: Corning Incorporated

    Inventor： Jaymin Amin ,  Shandon Dee Hart ,  Karl William Koch, III ,  Carlo Anthony Kosik Williams ,  Thien An Thi Nguyen

    IPC: G02F1/13357 ,  G02B1/00 ,  G02F1/1335

    Abstract: An article is described herein that includes: a translucent substrate comprising opposing major surfaces; and an optical film structure disposed on a first major surface of the substrate, the optical film structure comprising an outer surface and a plurality of periods such that each period comprises an alternating low refractive index layer and high refractive index layer. The article exhibits a hardness of 10 GPa or greater measured at an indentation depth of about 100 nm by a Berkovich Indenter Hardness Test. Further, the article exhibits a single side average photopic light reflectance of at least 50% of non-polarized light as measured at the outer surface from near-normal incidence to an incident angle of 60 degrees over a portion of at least 10 nm within the visible spectrum. In addition, each low refractive index layer comprises SiO2 or doped-SiO2 and each high refractive index layer comprises AlOxNy, SiOxNy, SiuAlvOxNy, SiNx or ZrO2.

    Durable anti-reflective articles
    62.
    发明授权
    Durable anti-reflective articles 有权

    公开(公告)号：US11267973B2

    公开(公告)日：2022-03-08

    申请号：US14707106

    申请日：2015-05-08

    Applicant: CORNING INCORPORATED

    Inventor： Jaymin Amin ,  Shandon Dee Hart ,  Karl William Koch, III ,  Eric Louis Null ,  Xu Ouyang ,  Charles Andrew Paulson ,  James Joseph Price

    IPC: C09D5/00 ,  G02B1/115 ,  C03C17/34 ,  C03C21/00

    Abstract: Embodiments of durable, anti-reflective articles are described. In one or more embodiments, the article includes a substrate and an anti-reflective coating disposed on the major surface. The article exhibits an average light transmittance of about 94% or greater over an optical wavelength regime and/or an average light reflectance of about 2% or less over the optical wavelength regime, as measured from an anti-reflective surface. In some embodiments, the article exhibits a maximum hardness of about 8 GPa or greater as measured by a Berkovich Indenter Hardness Test along an indentation depth of about 50 nm or greater and a b* value, in reflectance, in the range from about −5 to about 1 as measured on the anti-reflective surface only at all incidence illumination angles in the range from about 0 degrees to about 60 degrees under an International Commission on Illumination illuminant.

    OPTICAL FILM STRUCTURES AND ARTICLES FOR HIDDEN DISPLAYS AND DISPLAY DEVICES
    64.
    发明申请
    OPTICAL FILM STRUCTURES AND ARTICLES FOR HIDDEN DISPLAYS AND DISPLAY DEVICES 有权

    公开(公告)号：US20210063607A1

    公开(公告)日：2021-03-04

    申请号：US17004562

    申请日：2020-08-27

    Applicant: Corning Incorporated

    Inventor： Jaymin Amin ,  Shandon Dee Hart ,  Karl William Koch, III ,  Carlo Anthony Kosik Williams ,  Thien An Thi Nguyen

    IPC: G02B1/00 ,  G02F1/13357

    Abstract: An article is described herein that includes: a translucent substrate comprising opposing major surfaces; and an optical film structure disposed on a first major surface of the substrate, the optical film structure comprising an outer surface and a plurality of periods such that each period comprises an alternating low refractive index layer and high refractive index layer. The article exhibits a hardness of 10 GPa or greater measured at an indentation depth of about 100 nm by a Berkovich Indenter Hardness Test. Further, the article exhibits a single side average photopic light reflectance of at least 50% of non-polarized light as measured at the outer surface from near-normal incidence to an incident angle of 60 degrees over a portion of at least 10 nm within the visible spectrum. In addition, each low refractive index layer comprises SiO2 or doped-SiO2 and each high refractive index layer comprises AlOxNy, SiOxNy, SiuAlvOxNy, SiNx or ZrO2.

    Durable glass ceramic cover glass for electronic devices
    65.
    再颁专利
    Durable glass ceramic cover glass for electronic devices 有权

    公开(公告)号：USRE48200E1

    公开(公告)日：2020-09-08

    申请号：US16045438

    申请日：2018-07-25

    Applicant: Corning Incorporated

    Inventor： Jaymin Amin ,  George Halsey Beall ,  Charlene Marie Smith

    IPC: C03C10/00 ,  C03C4/18 ,  C03C21/00 ,  C03C3/093 ,  C03C10/02 ,  C03C10/04

    Abstract: The invention relates to glass articles suitable for use as electronic device housing/cover glass which comprise a glass ceramic material. Particularly, a cover glass comprising an ion-exchanged glass ceramic exhibiting the following attributes (1) optical transparency, as defined by greater than 90% transmission at 400-750 nm; (2) a fracture toughness of greater than 0.6 MPa·m1/2; (3) a 4-point bend strength of greater than 350 MPa; (4) a Vickers hardness of at least 450 kgf/mm2 and a Vickers median/radial crack initiation threshold of at least 5 kgf; (5) a Young's Modulus ranging between about 50 to 100 GPa; (6) a thermal conductivity of less than 2.0 W/m° C., and (7) and at least one of the following attributes: (i) a compressive surface layer having a depth of layer (DOL) greater and a compressive stress greater than 400 MPa, or, (ii) a central tension of more than 20 MPa.

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