Color Coatings with Two-Layer Thin-Film Interference Filter

    公开(公告)号:US20250085463A1

    公开(公告)日:2025-03-13

    申请号:US18523605

    申请日:2023-11-29

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with conductive structures such as conductive housing structures. A visible-light-reflecting coating may be formed on the conductive structures. The coating may have adhesion and transition layers, an opaque coloring layer on the adhesion and transition layers, and a two-layer thin-film interference filter on the opaque coloring layer. The two-layer thin-film interference filter may an uppermost diamond-like carbon (DLC) or CrSiCN layer and a lowermost SiCrCN layer. The coating may exhibit a dark blue or black color that has a relatively uniform visual response even when the underlying conductive structures have a three-dimensional shape.

    Colored Coatings for Electronic Devices

    公开(公告)号:US20220312614A1

    公开(公告)日:2022-09-29

    申请号:US17840484

    申请日:2022-06-14

    Applicant: Apple Inc.

    Abstract: An electronic device may have transparent housing structures such as walls formed of glass or sapphire. Housing structures such as transparent housing structures may have a colored coating. The colored coating may include an absorptive layer and a metal layer. The coating may exhibit a color that can be adjusted by adjusting the thickness of the thin absorptive layer. A colored layer such as a layer of colored polymer may be incorporated into the colored coating to further adjust the color of the coating. The colored coating may be formed on an inner or outer housing structure surface. The surface may have a texture to provide the coating with a matte appearance. When formed on an outer surface, a diamond-like carbon layer may protect the colored coating. When formed on an inner surface, a passivation layer may be used to prevent oxidation of the metal layer.

    Colored Coatings for Electronic Devices
    3.
    发明申请

    公开(公告)号:US20200015390A1

    公开(公告)日:2020-01-09

    申请号:US16403425

    申请日:2019-05-03

    Applicant: Apple Inc.

    Abstract: An electronic device may have transparent housing structures such as walls formed of glass or sapphire. Housing structures such as transparent housing structures may have a colored coating. The colored coating may include an absorptive layer and a metal layer. The coating may exhibit a color that can be adjusted by adjusting the thickness of the thin absorptive layer. A colored layer such as a layer of colored polymer may be incorporated into the colored coating to further adjust the color of the coating. The colored coating may be formed on an inner or outer housing structure surface. The surface may have a texture to provide the coating with a matte appearance. When formed on an outer surface, a diamond-like carbon layer may protect the colored coating. When formed on an inner surface, a passivation layer may be used to prevent oxidation of the metal layer.

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