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    Timestamp based display update mechanism
    42.
    发明授权
    Timestamp based display update mechanism 有权

    公开(公告)号：US11211036B2

    公开(公告)日：2021-12-28

    申请号：US16919495

    申请日：2020-07-02

    Applicant: Apple Inc.

    Inventor： Brijesh Tripathi ,  Arthur L. Spence ,  Joshua P. de Cesare ,  Ilie Garbacea ,  Guy Cote ,  Mahesh B. Chappalli ,  Malcolm D. Gray ,  Christopher P. Tann

    IPC: G09G5/39 ,  G09G5/395 ,  G06F3/14 ,  G06F3/147

    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, the display control unit may compare the timestamp of the topmost entry of the timestamp queue to a global timer value. If the timestamp is earlier than the global timer value, the display control unit may pop the timestamp entry and fetch the frame next configuration set from memory. The display control unit may then apply the updates of the frame configuration set to its pixel processing elements. 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.

    ELECTRONIC DISPLAY FRAME PRE-NOTIFICATION SYSTEMS AND METHODS
    43.
    发明申请
    ELECTRONIC DISPLAY FRAME PRE-NOTIFICATION SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20200082783A1

    公开(公告)日：2020-03-12

    申请号：US16128347

    申请日：2018-09-11

    Applicant: Apple Inc.

    Inventor： Peter F. Holland ,  Arthur L. Spence ,  Christopher P. Tann

    IPC: G09G5/00 ,  G09G5/395 ,  G09G5/10

    Abstract: An electronic device may include a display panel to display an image and a display pipeline to process image data for the image. The display pipeline may include a controller to determine a first potential presentation time based on a maximum refresh rate of the display panel. The controller may also determine if a second target presentation time of a second image is equal to the first potential presentation time before a pipeline configuration time, and if the second target presentation time of the second image is equal to a second potential presentation time that occurs after the first potential presentation time and before a first pre-notification time occurring before the pipeline configuration time. The controller may output a first pre-notification signal at the first pre-notification time that instructs the display panel to pause self-refreshes until after the second image is displayed.

    ELECTRONIC DISPLAY REDUCED BLANKING DURATION SYSTEMS AND METHODS
    44.
    发明申请
    ELECTRONIC DISPLAY REDUCED BLANKING DURATION SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20200064902A1

    公开(公告)日：2020-02-27

    申请号：US16110953

    申请日：2018-08-23

    Applicant: Apple Inc.

    Inventor： Peter F. Holland ,  Christopher P. Tann ,  Malcolm D. Gray ,  Hari Ganesh R. Thirunageswaram ,  Kristan Jon Monsen

    IPC: G06F1/32 ,  G06T1/60 ,  G09G5/36

    Abstract: The configuration buffer may be divided into partitions that may effectively function as multiple linked configuration buffers. The linked partitions may each be associated with a portion of the display pipeline (e.g., an image process block) and may each be responsible for loading configuration entries into the programmable register(s) of a portion of the display pipeline. In this manner, the partitions may load the associated programmable register(s) of the display pipeline substantially simultaneously, reducing the time used to configure the entire display pipeline. Since configuration of the display pipeline may occur during the blanking period, a reduction in display pipeline configuration time may reduce the blanking period and increase the time for driving pixels of the display, thereby improving perceived image quality (e.g., pixel yield of the display panel).

    Burn-In Statistics and Burn-In Compensation
    47.
    发明申请
    Burn-In Statistics and Burn-In Compensation 审中-公开

    公开(公告)号：US20190080666A1

    公开(公告)日：2019-03-14

    申请号：US15861215

    申请日：2018-01-03

    Applicant: Apple Inc.

    Inventor： Mahesh B. Chappalli ,  Christopher P. Tann ,  Peter F. Holland ,  Guy Côté ,  Stephan Lachowsky

    IPC: G09G5/00 ,  G09G3/00 ,  G09G5/02

    Abstract: An electronic display pipeline may process image data for display on an electronic display. The electronic display pipeline may include burn-in compensation statistics collection circuitry and burn-in compensation circuitry. The burn-in compensation statistics collection circuitry may collect image statistics based at least in part on the image data. The statistics may estimate a likely amount of non-uniform aging of the sub-pixels of the electronic display. The burn-in compensation circuitry may apply a gain to sub-pixels of the image data to account for non-uniform aging of corresponding sub-pixels of the electronic display. The applied gain may be based at least in part on the image statistics collected by the burn-in compensation statistics collection circuitry.

    COLLISION AVOIDANCE SCHEMES FOR DISPLAYS
    48.
    发明申请
    COLLISION AVOIDANCE SCHEMES FOR DISPLAYS 审中-公开

    公开(公告)号：US20190027114A1

    公开(公告)日：2019-01-24

    申请号：US15716708

    申请日：2017-09-27

    Applicant: Apple Inc.

    Inventor： Yue Jack Chu ,  Christopher P. Tann ,  Arthur L. Spence ,  Brad W. Simeral ,  Yafei Bi ,  Jiayi Jin ,  Ruo-Gu Huang ,  Haifeng Li ,  Weijun Yao ,  Chaohao Wang

    IPC: G09G5/00 ,  G06T1/60 ,  G09G5/36

    Abstract: In situations with reduced image changes, display panels, such as the ones disclosed herein, may reduce their power consumption by performing self-refresh cycles, in which they may display locally stored data in the display panel instead of retrieving it from an image buffer. Methods and circuitry for management of the self-refresh cycle may reduce jitter, luminance errors, and/or flickers that may be caused by untimely self-refresh cycles that may occur as a result of latency in the image buffer. In some implementations, the display panel may have a dedicated low latency input that notifies an arrival of an incoming image. In some implementations, the self-refresh cycles of the panel may be managed by a host or a buffer that is responsible for sending the images.

    Sub-pixel layout resampler systems and methods
    49.
    发明授权
    Sub-pixel layout resampler systems and methods 有权

    公开(公告)号：US10068548B1

    公开(公告)日：2018-09-04

    申请号：US15614294

    申请日：2017-06-05

    Applicant: Apple Inc.

    Inventor： Jim Chou ,  Koorosh Aflatooni ,  Marc Albrecht ,  Myung-Je Cho ,  Hyunwoo Nho ,  Christopher P. Tann ,  Mahesh B. Chappalli ,  Guy Côté

    IPC: G09G5/02 ,  G06T5/00 ,  H04N9/68 ,  H04N1/58 ,  G09G3/20 ,  G09G3/00 ,  H04N1/60

    Abstract: Systems and methods for improving perceived image quality of an electronic display, which includes a co-located sub-pixel that controls luminance of a first color component and an offset sub-pixel that controls luminance of a second color component. A display pipeline communicatively coupled to the electronic display determines image data, which indicates target luminance of the first, the second, and a third color component at an image pixel; determines edge parameters, which indicate whether an edge is expected to be present at the offset sub-pixel, based on a difference metric between a first image pixel block around the offset sub-pixel and a second image pixel block offset from the first image pixel block; and determines offset sub-pixel image data by filtering an image pixel group around the offset sub-pixel based at least in part on the edge parameters, wherein the offset sub-pixel image data indicates target luminance of the offset sub-pixel.

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