Waveguide Display with Sealed Tint Layer

    公开(公告)号:US20250004342A1

    公开(公告)日:2025-01-02

    申请号:US18743709

    申请日:2024-06-14

    Applicant: Apple Inc.

    Abstract: An electronic device may include a display with a waveguide that directs image light to an eye box using an output coupler. The display may include an electrically adjustable tint layer overlapping the output coupler. The tint layer may serve to maximize contrast of images in the image light. The tint layer may include a peripheral edge seal between first and second substrates and laterally surrounding an electrochromic gel. The peripheral edge seal may protect the gel from water and oxygen. The peripheral edge seal may include one or more rings of material and/or a glass ring spacer, the substrates may include cavities, and/or the gel may include spacer beads to help minimize warpage upon curing and thus maximize flatness of the tint layer. The electrochromic gel may include first and second redox species and a third redox species configured to tune a color response of the tint layer.

    Model-Based Method of Estimating Optical Electro-Chemical Cell State Via Electrical Input

    公开(公告)号:US20240402390A1

    公开(公告)日:2024-12-05

    申请号:US18678594

    申请日:2024-05-30

    Applicant: Apple Inc.

    Abstract: An electronic device includes a light-transmissive tint layer implemented on a light-transmissive viewing surface, on which a display panel is used to display augmented reality image content overlaid on background image content. A tint driver is used to apply electrical inputs to the light-transmissive tint layer to change optical properties of the light-transmissive tint layer. The temperature of the light-transmissive tint layer may be inferred from an electrical current applied to the light-transmissive tint layer. Dynamic values of the optical properties of the light-transmissive tint layer are predicted based on the electrical inputs and the temperature of the light-transmissive tint layer. The dynamic values of the optical properties are used to generate real-time compensated image data for the augmented reality image content.

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