CONTROLLING TRANSITIONS IN OPTICALLY SWITCHABLE DEVICES

    公开(公告)号:US20230251542A1

    公开(公告)日:2023-08-10

    申请号:US18137917

    申请日:2023-04-21

    Applicant: View, Inc.

    CPC classification number: G02F1/163 E06B9/24 G09G3/19 G02F1/0018

    Abstract: The embodiments herein relate to methods for controlling an optical transition in an optically switchable device, and optically switchable devices configured to perform such methods. In various embodiments, non-optical (e.g., electrical) feedback is used to help control an optical transition. The feedback may be used for a number of different purposes. In many implementations, the feedback is used to control an ongoing optical transition.

    DRIVING THIN FILM SWITCHABLE OPTICAL DEVICES
    37.
    发明公开

    公开(公告)号:US20230152655A1

    公开(公告)日:2023-05-18

    申请号:US18154396

    申请日:2023-01-13

    Applicant: View, Inc.

    CPC classification number: G02F1/163 G02F1/15 G02F1/155 G02F2001/1555

    Abstract: Controllers and control methods apply a drive voltage to bus bars of a thin film optically switchable device. The applied drive voltage is provided at a level that drives a transition over the entire surface of the optically switchable device but does not damage or degrade the device. This applied voltage produces an effective voltage at all locations on the face of the device that is within a bracketed range. The upper bound of this range is associated with a voltage safely below the level at which the device may experience damage or degradation impacting its performance in the short term or the long term. At the lower boundary of this range is an effective voltage at which the transition between optical states of the device occurs relatively rapidly. The level of voltage applied between the bus bars is significantly greater than the maximum value of the effective voltage within the bracketed range.

    Fabrication of electrochromic devices

    公开(公告)号:US11599003B2

    公开(公告)日:2023-03-07

    申请号:US16836420

    申请日:2020-03-31

    Applicant: View, Inc.

    Abstract: Electrochromic devices and methods may employ the addition of a defect-mitigating insulating layer which prevents electronically conducting layers and/or electrochromically active layers from contacting layers of the opposite polarity and creating a short circuit in regions where defects form. In some embodiments, an encapsulating layer is provided to encapsulate particles and prevent them from ejecting from the device stack and risking a short circuit when subsequent layers are deposited. The insulating layer may have an electronic resistivity of between about 1 and 108 Ohm-cm. In some embodiments, the insulating layer contains one or more of the following metal oxides: aluminum oxide, zinc oxide, tin oxide, silicon aluminum oxide, cerium oxide, tungsten oxide, nickel tungsten oxide, and oxidized indium tin oxide. Carbides, nitrides, oxynitrides, and oxycarbides may also be used.

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