Color Coatings
    1.
    发明公开
    Color Coatings 审中-公开

    公开(公告)号:US20240076504A1

    公开(公告)日:2024-03-07

    申请号:US18364760

    申请日:2023-08-03

    Applicant: Apple Inc.

    CPC classification number: C09D1/00 C09D5/004

    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 three-layer thin-film interference filter on the opaque coloring layer. The three-layer thin-film interference filter may have an uppermost SiC layer, a lowermost SiCrCN layer, and a CrC layer interposed between the SiC layer and the SiCrCN layer. The opaque color layer may be a CrSiCN layer. The coating may exhibit a light violet color that has a relatively uniform visual response even when the underlying conductive structures have a three-dimensional shape.

    Coatings with Top Coloring Layer
    5.
    发明申请

    公开(公告)号:US20250075334A1

    公开(公告)日:2025-03-06

    申请号:US18523718

    申请日:2023-11-29

    Applicant: Apple Inc.

    Abstract: An electronic device may be provided with conductive structures such as a titanium housing wall. A visible-light-reflecting coating may be formed on the titanium housing wall. The coating may have adhesion and transition layers and an uppermost opaque coloring layer. In a first example, the uppermost opaque coloring layer includes CrC on a CrSiN transition layer. In a second example, the uppermost opaque coloring layer includes CrN on a CrN transition layer. The coating may exhibit a relatively uniform metallic silver or gray color that is smudge resistant even when the underlying titanium housing wall has a three-dimensional shape.

    Light Color Coatings for Electronic Devices

    公开(公告)号:US20220350062A1

    公开(公告)日:2022-11-03

    申请号:US17459843

    申请日:2021-08-27

    Applicant: Apple Inc.

    Abstract: An electronic device may include conductive structures with a light-reflecting coating. The coating may have a two or four-layer thin-film interference filter. The two-layer filter may have a CrN layer and an SiCrN layer. The four-layer filter may have two CrN layers and two SiCrN layers. The two-layer filter may be used to coat relatively small conductive components. The four-layer filter may be used to coat a conductive housing sidewall. Both types of interference filter may produce a relatively uniform light blue color despite variations in coating thickness produced on account of the geometry of the underlying conductive structure.

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