ADAPTIVE PIXEL VOLTAGE COMPENSATION FOR DISPLAY PANELS

    公开(公告)号:US20180322827A1

    公开(公告)日:2018-11-08

    申请号:US15711585

    申请日:2017-09-21

    Applicant: Apple Inc.

    Abstract: A display device may include a display having a plurality of pixels. The display device may also include a replica pixel circuit having a switching device configured to output a first current based on a received voltage, a light-emitting diode (LED) configured to illuminate to a first gray level based on the first current output by the switching device, and current mirror circuitry configured to generate a second current that mirrors the first current. In addition, the replica pixel circuit may include a current source configured to output a reference current based on a voltage value that corresponds to the received voltage, comparator circuitry configured to determine a difference between the second current and the reference current, and voltage adjustment circuitry configured to adjust a source voltage output provided to the plurality of pixels based on the difference.

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