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    BACKLIGHT RECONSTRUCTION AND COMPENSATION
    1.
    发明申请
    BACKLIGHT RECONSTRUCTION AND COMPENSATION 审中-公开

    公开(公告)号：WO2022046569A1

    公开(公告)日：2022-03-03

    申请号：PCT/US2021/047016

    申请日：2021-08-20

    Applicant: APPLE INC.

    Inventor： CHAPPALLI, Mahesh B.

    IPC: G09G3/34

    Abstract: A processor or other circuitry may obtain emissive element strength information for an array of emissive elements of an electronic display. The processor or other circuitry may reconstruct backlight information at multiple locations within the electronic display. The processor or other circuitry also compensates display of image data based at least in part on the reconstructed backlight information.

    SYSTEMS AND METHODS FOR TWO-DIMENSIONAL BACKLIGHT OPERATION
    3.
    发明申请
    SYSTEMS AND METHODS FOR TWO-DIMENSIONAL BACKLIGHT OPERATION 审中-公开

    公开(公告)号：WO2022056406A1

    公开(公告)日：2022-03-17

    申请号：PCT/US2021/050110

    申请日：2021-09-13

    Applicant: APPLE INC.

    Inventor： CHAPPALLI, Mahesh B. ,  MENACHEM, Assaf ,  DAR, Daniel Yechiel ,  SOFFAIR, Ido Yaacov

    IPC: G09G3/20 ,  G09G3/34 ,  G09G5/00

    Abstract: An electronic display device has a panel (16) that operates in conjunction with a light-emitting diode (LED) backlight. The device "slopes" or gradually ramps a change in brightness of an LED (18) based on a target brightness value (84) of the LED (18), a current brightness value of the LED (18), and temperature (88) at the LED (18). The device also may limit power to the backlight (17) based on an estimated power consumption (120) of a current row of LEDs (18) of the backlight (17) and power consumption of the other rows of LEDs (18). The device also may determine a reduced voltage (154) to supply to an LED (18) based on a current (210) to supply to the LED (18) to cause the LED (18) to operate. The device also may send an interrupt (180) to the backlight (17) to block updates to the backlight (17) while image content is written to pixels of the panel (16). The device further compensates for aging of and temperature (88) at an LED (18).

    ELECTRONIC DISPLAY PARTIAL IMAGE FRAME UPDATE SYSTEMS AND METHODS
    4.
    发明申请
    ELECTRONIC DISPLAY PARTIAL IMAGE FRAME UPDATE SYSTEMS AND METHODS 审中-公开

    公开(公告)号：WO2019212907A1

    公开(公告)日：2019-11-07

    申请号：PCT/US2019/029448

    申请日：2019-04-26

    Applicant: APPLE INC.

    Inventor： HOLLAND, Peter F. ,  CHAPPALLI, Mahesh B. ,  MENACHEM, Assaf

    IPC: G09G5/393 ,  G06F1/3234 ,  G06F3/14

    Abstract: An electronic device (10) may include a display (12) panel and an image data source (38) designed to determine a differing region (84) in an image frame by comparing source image data (78) and image data corresponding with a previous image frame (72). The electronic device (10) may also include a display pipeline (36) between the image data source (38) and the display (12) panel. The display pipeline (36) may include image processing circuitry (27) to convert image data from a source space to a display space and image processing circuitry to spatially process the image data. The display pipeline (36) may determine a crop region (116) by converting the differing region (84) to the display space and determine a partial frame region (120), based on the image data to be spatially processed, by the image processing circuitry (27). The display pipeline (36) may also determine and retrieve a fetch region (86) smaller than the image frame by converting the partial frame region to the source space.

    ELECTRONIC DISPLAY COLOR ACCURACY COMPENSATION
    5.
    发明申请
    ELECTRONIC DISPLAY COLOR ACCURACY COMPENSATION 审中-公开

    公开(公告)号：WO2019050616A1

    公开(公告)日：2019-03-14

    申请号：PCT/US2018/040763

    申请日：2018-07-03

    Applicant: APPLE INC.

    Inventor： HERRANZ, Adria Fores ,  COTE, Guy ,  SPENCE, Arthur L. ,  CHAPPALLI, Mahesh B. ,  HOLLAND, Peter F. ,  THOMPSON, Ross

    IPC: G09G5/02 ,  G09G5/06

    Abstract: Systems, methods, and non-transitory media are presented that provide for improving color accuracy. An electronic display (12) includes a display region having multiple pixels each having multiple subpixels. The electronic device (10) also includes a display pipeline (36) coupled to the electronic display (12). The display pipeline (36) is configured to receive image data and perform white point compensation on the image data to compensate for a current drop in the display (12) to cause the display (12) to display a target white point when displaying white. The display pipeline (36) also is configured to correct white point overcompensation on the image data to reduce possible oversaturation of non-white pixels using the white point compensation. Finally, the display pipeline (36) is configured to output the compensated and corrected image data to the electronic display (12) to facilitate displaying the compensated and corrected image data on the display region.

    TIMESTAMP BASED DISPLAY UPDATE MECHANISM
    6.
    发明申请
    TIMESTAMP BASED DISPLAY UPDATE MECHANISM 审中-公开
    基于TIMESTAMP的显示更新机制

    公开(公告)号：WO2017058343A1

    公开(公告)日：2017-04-06

    申请号：PCT/US2016/043394

    申请日：2016-07-21

    Applicant: APPLE INC.

    Inventor： TRIPATHI, Brijesh ,  SPENCE, Arthur L. ,  DE CESARE, Joshua P. ,  GARBACEA, Ilie ,  COTE, Guy ,  CHAPPALLI, Mahesh B. ,  GRAY, Malcolm D. ,  TANN, Christopher P.

    IPC: G06F3/147 ,  G06F3/14

    CPC classification number: G09G5/395 ,  G06F3/1407 ,  G06F3/147 ,  G09G2310/08 ,  G09G2340/0407 ,  G09G2340/0464 ,  G09G2360/127

    Abstract: Systems, apparatuses, and methods for implementing a timestamp based display update mechanism. A display control unit includes a timestamp queue for storing timestamps, wherein each timestamp indicates when a corresponding frame configuration set should be fetched from memory. At pre-defined intervals (810), the display control unit may compare the timestamp of the topmost entry of the timestamp queue to a global timer value (815). If the timestamp is earlier than the global timer value (820), the display control unit may pop the timestamp entry and fetch the frame next configuration set from memory (825). The display control unit may then apply the updates of the frame configuration set to its pixel processing elements (835). After applying the updates, the display control unit may fetch and process the source pixel data and then drive the pixels of the next frame to the display (840).

    Abstract translation: 用于实现基于时间戳的显示更新机制的系统，装置和方法。 显示控制单元包括用于存储时间戳的时间戳队列，其中每个时间戳指示何时应当从存储器取出对应的帧配置集。 以预定义的间隔（810），显示控制单元可以将时间戳队列的最上面的条目的时间戳与全局定时器值（815）进行比较。 如果时间戳早于全局定时器值（820），则显示控制单元可以弹出时间戳条目并从存储器提取下一个配置集合（825）。 然后，显示控制单元可以将帧配置集的更新应用于其像素处理元件（835）。 在应用更新之后，显示控制单元可以获取并处理源像素数据，然后将下一帧的像素驱动到显示器（840）。

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