Systems and methods of driving a display with high bit depth

    公开(公告)号:US11955053B2

    公开(公告)日:2024-04-09

    申请号:US17791153

    申请日:2021-01-07

    Applicant: Snap Inc.

    Abstract: Systems and methods for varying an intensity of pixels of displays are provided. A display subsystem may include a display driver for receiving image frame data and commands from an image or data source, including pixel intensity values for bit planes of an image frame; a parser for receiving the image frame data and the commands, and configured to determine a drive waveform having an pixel drive value and a pixel drive time interval for each bit plane of the image frame data; a display backplane for receiving the drive waveform, the display backplane including a pixel array comprising an array of pixels, each pixel driven by a pixel circuit; and display driver circuitry for driving the pixels in accordance with the drive waveform; and wherein an intensity of the pixel varies for each bit plane according to the pixel drive value and the pixel drive time interval.

    Systems and methods for updating an image displayed on a display device

    公开(公告)号:US11756512B2

    公开(公告)日:2023-09-12

    申请号:US17791396

    申请日:2021-01-08

    Applicant: Snap Inc.

    CPC classification number: G09G5/393 G09G5/395 G09G2310/04

    Abstract: A system for updating an image on a display device includes pixels in a pixel array. The system includes a display subsystem for executing commands and displaying images, the display subsystem also includes a parser for receiving image frame data, and extracting updated image data and commands. A storage device is used for storing the updated image data in an updated cache location according to the commands. A loader is used for reading the commands to identify and fetch the updated image data from the storage device. Display backplane circuitry is used for receiving the updated image data from the loader and for updating pixel driver circuity for pixels within the updated image data. The examples described are ideal for driving micro-displays such as LCoS micro-LED displays.

    Updating an image displayed on a display device

    公开(公告)号:US12131721B2

    公开(公告)日:2024-10-29

    申请号:US18204358

    申请日:2023-05-31

    Applicant: Snap Inc.

    CPC classification number: G09G5/393 G09G5/395 G09G2310/04

    Abstract: Updating an image displayed on a display device. The display device includes pixels in a pixel array. A system comprising a display subsystem for executing commands and displaying images, said display subsystem comprising a parser for receiving the image frame data, wherein the parser extracts updated image data and the commands. The system includes a storage device for storing the updated image data in a updated cache location according to the commands. The system includes a loader for reading the commands to identify and fetch the updated image data from the storage device. The system includes display backplane circuitry for receiving the updated image data from the loader and for updating pixel driver circuity for pixels within the updated image data. The embodiments herein can be used for driving micro-displays such as LCoS micro-LED displays.

    Systems and methods of driving a display with high bit depth

    公开(公告)号:US11984061B2

    公开(公告)日:2024-05-14

    申请号:US17791153

    申请日:2021-01-07

    Applicant: Snap Inc.

    Abstract: Systems and methods for varying an intensity of pixels of displays are provided. A display subsystem may include a display driver for receiving image frame data and commands from an image or data source, including pixel intensity values for bit planes of an image frame; a parser for receiving the image frame data and the commands, and configured to determine a drive waveform having an pixel drive value and a pixel drive time interval for each bit plane of the image frame data; a display backplane for receiving the drive waveform, the display backplane including a pixel array comprising an array of pixels, each pixel driven by a pixel circuit; and display driver circuitry for driving the pixels in accordance with the drive waveform; and wherein an intensity of the pixel varies for each bit plane according to the pixel drive value and the pixel drive time interval.

    SYSTEMS AND METHODS FOR CONFIGURING A DISPLAY DEVICE AND DISPLAY SYSTEM

    公开(公告)号:US20240242663A1

    公开(公告)日:2024-07-18

    申请号:US18620536

    申请日:2024-03-28

    Applicant: Snap Inc.

    CPC classification number: G09G3/32 H01L27/156 G09G2370/00

    Abstract: Displays, systems, and methods may be utilized in applications including, but not limited to, projectors, head-up displays, and augmented reality (AR), mixed reality (MR), and virtual reality (VR) systems or devices, such as headsets or other near-eye devices or systems. Tiled or Tile-able displays and methods, in accordance with the present invention, provide displays of varying sizes, and as such, a Tiled or Tile-able display is configured to accommodate the display size needed for various wearable and mobile devices that require or incorporate displays.

    SYSTEMS AND METHODS OF DRIVING A DISPLAY WITH HIGH BIT DEPTH

    公开(公告)号:US20240194120A1

    公开(公告)日:2024-06-13

    申请号:US18583287

    申请日:2024-02-21

    Applicant: Snap Inc.

    Abstract: Systems and methods for varying an intensity of pixels of displays are provided. A display subsystem may include a display driver for receiving image frame data and commands from an image or data source, including pixel intensity values for bit planes of an image frame; a parser for receiving the image frame data and the commands, and configured to determine a drive waveform having an pixel drive value and a pixel drive time interval for each bit plane of the image frame data; a display backplane for receiving the drive waveform, the display backplane including a pixel array comprising an array of pixels, each pixel driven by a pixel circuit; and display driver circuitry for driving the pixels in accordance with the drive waveform; and wherein an intensity of the pixel varies for each bit plane according to the pixel drive value and the pixel drive time interval.

    Systems and methods for configuring a display device and display system

    公开(公告)号:US11984062B2

    公开(公告)日:2024-05-14

    申请号:US17817528

    申请日:2022-08-04

    Applicant: Snap Inc.

    CPC classification number: G09G3/32 H01L27/156 G09G2370/00

    Abstract: Displays, systems, and methods may be utilized in applications including, but not limited to, projectors, head-up displays, and augmented reality (AR), mixed reality (MR), and virtual reality (VR) systems or devices, such as headsets or other near-eye devices or systems. Tiled or Tile-able displays and methods, in accordance with the present invention, provide displays of varying sizes, and as such, a Tiled or Tile-able display is configured to accommodate the display size needed for various wearable and mobile devices that require or incorporate displays.

    PULSE WIDTH MODULATION FOR PHASE-MODULATING DISPLAY

    公开(公告)号:US20240296811A1

    公开(公告)日:2024-09-05

    申请号:US18440675

    申请日:2024-02-13

    Applicant: Snap Inc.

    Abstract: A method is disclosed for controlling a liquid crystal pulse width modulated display. A repetition period includes A group periods, each including B modulation intervals, each modulation interval spanning H unit durations and, except for the final modulation interval of the repetition period, a remainder unit duration. A desired number N of unit duration pulses are distributed into H unit duration pulses for each modulation interval, with remainder desired pulses distributed among the remainder unit durations of the modulation intervals. A drive sequence is generated, including one or more repetitions of the repetition period.

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