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    Display with pixel dimming for curved edges
    2.
    发明授权
    Display with pixel dimming for curved edges 有权

    公开(公告)号：US10283062B2

    公开(公告)日：2019-05-07

    申请号：US15767637

    申请日：2017-07-17

    Applicant: Apple Inc.

    Inventor： Jiayi Jin ,  Myung-Je Cho ,  Paolo Sacchetto ,  Weijun Yao

    IPC: G09G3/36 ,  G09G3/20

    Abstract: A display may have curved edges such as rounded corners. Pixels in the display may be controlled so that the active area of the display has the desired curved edge shape. In order to maximize the apparent smoothness of the curved edge, the display may include circuitry that dims some of the pixels based on their location relative to a spline for the curved edge. The display circuitry may include a multiplication circuit that receives image data as a first input and dimming factors from a gain table as a second input. The image data may include a brightness level for each pixel in the array of pixels. The multiplication circuit may multiply the brightness level for each pixel by its respective dimming factor. This modified image data may then be supplied to the imaging pixels using display driver circuitry.

    Electronic display border gain systems and methods
    3.
    发明授权
    Electronic display border gain systems and methods 有权

    公开(公告)号：US10714049B2

    公开(公告)日：2020-07-14

    申请号：US15701086

    申请日：2017-09-11

    Applicant: Apple Inc.

    Inventor： Myung-Je Cho ,  Jim Chou ,  Marc Albrecht ,  Jean-Pierre Guillou

    IPC: G09G5/10 ,  G09G5/39 ,  G09G5/02 ,  G09G5/00 ,  G06T5/00

    Abstract: Systems and methods for improving perceived image quality of an electronic display, which includes a display region with a rounded border and a display pixel at a pixel position adjacent the rounded border. A display pipeline communicatively coupled to the electronic display receives first image data that indicates target luminance at the pixel position in a rectangular image frame; determines a gain value associated with the pixel position from a gain map, in which the gain value is inversely proportional to distance between the display pixel and the rounded border; determines second image data that indicates target luminance of the display pixel by processing the first image data based at least in part on the gain value; and outputs the second image data to the electronic display to facilitate displaying a non-rectangular portion of the image frame on the display region.

    Display With Pixel Dimming For Curved Edges
    4.
    发明申请
    Display With Pixel Dimming For Curved Edges 审中-公开

    公开(公告)号：US20190221177A1

    公开(公告)日：2019-07-18

    申请号：US16368394

    申请日：2019-03-28

    Applicant: Apple Inc.

    Inventor： Jiayi Jin ,  Myung-Je Cho ,  Paolo Sacchetto ,  Weijun Yao

    IPC: G09G3/36 ,  G09G3/20

    CPC classification number: G09G3/3607 ,  G09G3/20 ,  G09G2310/0232 ,  G09G2320/0285 ,  G09G2320/0626

    Abstract: A display may have curved edges such as rounded corners. Pixels in the display may be controlled so that the active area of the display has the desired curved edge shape. In order to maximize the apparent smoothness of the curved edge, the display may include circuitry that dims some of the pixels based on their location relative to a spline for the curved edge. The display circuitry may include a multiplication circuit that receives image data as a first input and dimming factors from a gain table as a second input. The image data may include a brightness level for each pixel in the array of pixels. The multiplication circuit may multiply the brightness level for each pixel by its respective dimming factor. This modified image data may then be supplied to the imaging pixels using display driver circuitry.

    Data Signal Adjustment for Displays
    5.
    发明申请
    Data Signal Adjustment for Displays 审中-公开

    公开(公告)号：US20190073962A1

    公开(公告)日：2019-03-07

    申请号：US15989066

    申请日：2018-05-24

    Applicant: Apple Inc.

    Inventor： Koorosh Aflatooni ,  Warren S. Rieutort-Louis ,  Jean-Pierre S. Guillou ,  Pierre-Yves Emelie ,  Myung-Je Cho ,  Marc Albrecht ,  Graeme M. Williams ,  Sean C. Chang ,  Zhao Wang

    IPC: G09G3/3275

    Abstract: A display may have an active area that includes display pixels. The display may include an inactive notch region that extends into the active area. Data lines may provide image data from display driver circuitry to the display pixels. The image data may include data signals that correspond to portions of the display that do not include pixels, such as the inactive notch region. The null data signals may cause nonuniformities in the displayed image. The null data signals may be adjusted to minimize the nonuniformities. Null data signals corresponding to the inactive notch region may be adjusted to have gray levels that gradually decrease with distance from the border between the inactive notch and the active area. All of the data signals corresponding to the inactive notch may be set to a uniform gray level.

    Sub-pixel layout resampler systems and methods
    6.
    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.

    Spatial temporal phase shifted polarity aware dither
    10.
    发明授权
    Spatial temporal phase shifted polarity aware dither 有权

    公开(公告)号：US10319279B2

    公开(公告)日：2019-06-11

    申请号：US15438448

    申请日：2017-02-21

    Applicant: Apple Inc.

    Inventor： Chaohao Wang ,  Paolo Sacchetto ,  Sheng Zhang ,  Yang Li ,  Myung-Je Cho ,  Marc Albrecht

    IPC: G09G3/20

    Abstract: This application relates to performing certain dithering processes to eliminate display artifacts such as flicker, which can be caused by charge accumulation at the display. The dither process can be performed by a display controller that uses a group lookup method for identifying groups of dithering patterns that can be combined to expand a number of color values available to the display. The dither process can also be performed as a temporal process that incorporates groups of dithering patterns into frames and shifts a spatial arrangement of the groups of dithering patterns over a sequence of frames. Additionally, the dither process can incorporate counters that count the number of times a particular spatial arrangement of dithering patterns has been used in a sequence of frames in order that each spatial arrangement of dithering patterns will share an average count with other spatial arrangements over a sequence of frames.

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