High Frame Rate Display
    1.
    发明申请

    公开(公告)号:US20190228726A1

    公开(公告)日:2019-07-25

    申请号:US16369319

    申请日:2019-03-29

    Applicant: Apple Inc.

    Abstract: A display may have rows and columns of pixels. Gate lines may be used to supply gate signals to rows of the pixels. Data lines may be used to supply data signals to columns of the pixels. The data lines may include alternating even and odd data lines. Data lines may be organized in pairs each of which includes one of the odd data lines and an adjacent one of the even data lines. Demultiplexer circuitry may be configured dynamically during data loading and pixel sensing operations. During data loading, data from display driver circuitry may be supplied, alternately to odd pairs of the data lines and even pairs of the data lines. During sensing, the demultiplexer circuitry may couple a pair of the even data lines to sensing circuitry in the display driver circuitry and then may couple a pair of the odd data lines to the sensing circuitry.

    Display with Silicon Gate Drivers and Semiconducting Oxide Pixels

    公开(公告)号:US20250131885A1

    公开(公告)日:2025-04-24

    申请号:US18407578

    申请日:2024-01-09

    Applicant: Apple Inc.

    Abstract: A display may include an array of pixels that receive control signals from a chain of gate drivers. The pixels can be formed using semiconducting oxide transistors, whereas the gate drivers can be formed using silicon transistor. Each gate driver may include a shift register subcircuit and an output buffer subcircuit. The shift register subcircuit may include a first set of transistors at least partially controlled by one or more shift register clock signals. The output buffer subcircuit may include a second set of transistors at least partially controlled by one or more output buffer clock signals. The output buffer clock signals can toggle independently from the shift register clock signals. Operated in this way, the shift register clock signals can have pulse widths optimized for stability while the output buffer clock signals can have pulse widths optimized for speed.

    High frame rate display
    5.
    发明授权

    公开(公告)号:US11211020B2

    公开(公告)日:2021-12-28

    申请号:US16369319

    申请日:2019-03-29

    Applicant: Apple Inc.

    Abstract: A display may have rows and columns of pixels. Gate lines may be used to supply gate signals to rows of the pixels. Data lines may be used to supply data signals to columns of the pixels. The data lines may include alternating even and odd data lines. Data lines may be organized in pairs each of which includes one of the odd data lines and an adjacent one of the even data lines. Demultiplexer circuitry may be configured dynamically during data loading and pixel sensing operations. During data loading, data from display driver circuitry may be supplied, alternately to odd pairs of the data lines and even pairs of the data lines. During sensing, the demultiplexer circuitry may couple a pair of the even data lines to sensing circuitry in the display driver circuitry and then may couple a pair of the odd data lines to the sensing circuitry.

    Display with Silicon Gate Drivers and Semiconducting Oxide Pixels

    公开(公告)号:US20240127758A1

    公开(公告)日:2024-04-18

    申请号:US18322406

    申请日:2023-05-23

    Applicant: Apple Inc.

    Abstract: A display may include an array of pixels that receive control signals from a chain of gate drivers. The pixels can be formed using semiconducting oxide transistors, whereas the gate drivers can be formed using silicon transistor. Each gate driver may include a shift register subcircuit and an output buffer subcircuit. The shift register subcircuit may include a first set of transistors at least partially controlled by one or more shift register clock signals. The output buffer subcircuit may include a second set of transistors at least partially controlled by one or more output buffer clock signals. The output buffer clock signals can toggle independently from the shift register clock signals. Operated in this way, the shift register clock signals can have pulse widths optimized for stability while the output buffer clock signals can have pulse widths optimized for speed.

    Display pixel luminance stabilization systems and methods

    公开(公告)号:US11127357B2

    公开(公告)日:2021-09-21

    申请号:US16850936

    申请日:2020-04-16

    Applicant: Apple Inc.

    Abstract: Techniques for implementing and/or operating an electronic device, which includes a display pixel that emits light to facilitate displaying an image during an emission period and a data driver coupled to the display pixel via a data line. The data driver generates a data line voltage signal based on image data that indicates target luminance of the display pixel in the image and supplies the data line voltage signal to the data line during a non-emission period preceding the emission period to facilitate writing the image to the display pixel. Additionally, the data driver supplies an intermediate voltage greater than a ground voltage to the data line during the emission period in which the image is displayed to facilitate reducing luminance variation in the image resulting from a leakage current flowing between an internal node of the display pixel and the data line during the emission period.

    Mirrored pixel arrangement to mitigate column crosstalk

    公开(公告)号:US11049457B1

    公开(公告)日:2021-06-29

    申请号:US16852234

    申请日:2020-04-17

    Applicant: Apple Inc.

    Abstract: A display may include an array of pixels, where each pixel in the array includes an organic light-emitting diode coupled to a drive transistor and other associated thin-film transistors. The array may be grouped into column pairs, where each column pair includes a first pixel column and a second pixel column that is mirrored with respect to the first pixel column. The drive transistors within each column pair may be formed towards the center of that column pair, whereas the data lines associated with that column pair may be formed along the outer peripheral edges of that column pair. Configured in this way, parasitic coupling between the data lines and any sensitive/floating nodes of the drive transistor may be substantially reduced, which mitigates pixel column crosstalk and ensures luminance uniformity across the display.

    DISPLAY PIXEL LUMINANCE STABILIZATION SYSTEMS AND METHODS

    公开(公告)号:US20200335046A1

    公开(公告)日:2020-10-22

    申请号:US16850936

    申请日:2020-04-16

    Applicant: Apple Inc.

    Abstract: Techniques for implementing and/or operating an electronic device, which includes a display pixel that emits light to facilitate displaying an image during an emission period and a data driver coupled to the display pixel via a data line. The data driver generates a data line voltage signal based on image data that indicates target luminance of the display pixel in the image and supplies the data line voltage signal to the data line during a non-emission period preceding the emission period to facilitate writing the image to the display pixel. Additionally, the data driver supplies an intermediate voltage greater than a ground voltage to the data line during the emission period in which the image is displayed to facilitate reducing luminance variation in the image resulting from a leakage current flowing between an internal node of the display pixel and the data line during the emission period.

    Display with Silicon Gate Drivers and Semiconducting Oxide Pixels

    公开(公告)号:US20240420646A1

    公开(公告)日:2024-12-19

    申请号:US18815723

    申请日:2024-08-26

    Applicant: Apple Inc.

    Abstract: A display may include an array of pixels that receive control signals from a chain of gate drivers. The pixels can be formed using semiconducting oxide transistors, whereas the gate drivers can be formed using silicon transistor. Each gate driver may include a shift register subcircuit and an output buffer subcircuit. The shift register subcircuit may include a first set of transistors at least partially controlled by one or more shift register clock signals. The output buffer subcircuit may include a second set of transistors at least partially controlled by one or more output buffer clock signals. The output buffer clock signals can toggle independently from the shift register clock signals. Operated in this way, the shift register clock signals can have pulse widths optimized for stability while the output buffer clock signals can have pulse widths optimized for speed.

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