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    Systems and methods for performing in-frame cleaning
    2.
    发明授权
    Systems and methods for performing in-frame cleaning 有权

    公开(公告)号：US11227536B2

    公开(公告)日：2022-01-18

    申请号：US16746325

    申请日：2020-01-17

    申请人： Apple Inc.

    发明人： Xin Lin ,  Yun Wang ,  Chin-Wei Lin ,  Majid Gharghi ,  Fan Gui ,  Chen-Ming Chen ,  Jie Won Ryu ,  Hyunwoo Nho ,  Alex H. Pai ,  Kingsuk Brahma ,  Junhua Tan ,  Szu Heng Tseng

    IPC分类号： G09G3/30 ,  G09G3/32 ,  G09G3/20

    摘要： A system includes an electronic display panel that has a plurality of pixels configured to depict frames of image data. The electronic display also includes display driver circuitry configured to, for a first frame of image data representing first image content, modify a gate-to-source voltage of a transistor of a first pixel of the plurality of pixels to a content-dependent first gate-to-source voltage. Additionally, after modifying the gate-to-source voltage to the first gate-to-source voltage, the display driver circuitry is configured to program the first pixel by modifying the gate-to-source voltage to a gate-to-source programming voltage that differs from the first gate-to-source voltage and is based on image data associated with the pixel from the first frame of the image data. Furthermore, the display driver circuitry is configured to cause the plurality of pixels to emit light.

    Systems and Methods for External Off-Time Pixel Sensing
    3.
    发明申请
    Systems and Methods for External Off-Time Pixel Sensing 审中-公开

    公开(公告)号：US20200335040A1

    公开(公告)日：2020-10-22

    申请号：US16802354

    申请日：2020-02-26

    申请人： Apple Inc.

    发明人： Hyunwoo Nho ,  Myungjoon Choi ,  Hyunsoo Kim ,  Mohammad Ali Jangda ,  Jie Won Ryu ,  Shiping Shen ,  Kingsuk Brahma ,  Chaohao Wang ,  Wei H. Yao ,  Alex H. Pai

    IPC分类号： G09G3/3258

    摘要： An electronic device includes a display having multiple regions of pixels. Each pixel includes a diode that emits light based on an amount of current through the diode and a transistor that controls the amount of current flowing through the diode. The electronic device includes driver-integrated circuitry that reduces hysteresis in a first transistor of a first pixel of a region of pixels, settles a threshold voltage of the first transistor, applies a test voltage to the first transistor, and senses a current across the first transistor. The electronic device includes processing circuitry that determines a predetermined voltage based on the current and a predetermined current-voltage relationship determined at an initial temperature, determines a voltage difference between the test voltage and the predetermined voltage, and applies the predetermined voltage and the voltage difference to a second transistor of a second pixel of the region of pixels.

    SYSTEMS AND METHODS FOR PERFORMING IN-FRAME CLEANING
    5.
    发明申请
    SYSTEMS AND METHODS FOR PERFORMING IN-FRAME CLEANING 审中-公开

    公开(公告)号：US20200302856A1

    公开(公告)日：2020-09-24

    申请号：US16746325

    申请日：2020-01-17

    申请人： Apple Inc.

    发明人： Xin Lin ,  Yun Wang ,  Chin-Wei Lin ,  Majid Gharghi ,  Fan Gui ,  Chen-Ming Chen ,  Jie Won Ryu ,  Hyunwoo Nho ,  Alex H. Pai ,  Kingsuk Brahma ,  Junhua Tan ,  Szu Heng Tseng

    IPC分类号： G09G3/32 ,  G09G3/20

    摘要： A system includes an electronic display panel that has a plurality of pixels configured to depict frames of image data. The electronic display also includes display driver circuitry configured to, for a first frame of image data representing first image content, modify a gate-to-source voltage of a transistor of a first pixel of the plurality of pixels to a content-dependent first gate-to-source voltage. Additionally, after modifying the gate-to-source voltage to the first gate-to-source voltage, the display driver circuitry is configured to program the first pixel by modifying the gate-to-source voltage to a gate-to-source programming voltage that differs from the first gate-to-source voltage and is based on image data associated with the pixel from the first frame of the image data. Furthermore, the display driver circuitry is configured to cause the plurality of pixels to emit light.

    Display pixel luminance stabilization systems and methods
    9.
    发明授权
    Display pixel luminance stabilization systems and methods 有权

    公开(公告)号：US11127357B2

    公开(公告)日：2021-09-21

    申请号：US16850936

    申请日：2020-04-16

    申请人： Apple Inc.

    发明人： Jie Won Ryu ,  Myungjoon Choi ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Chin-Wei Lin ,  Shiping Shen ,  Kingsuk Brahma ,  Chaohao Wang ,  Shinya Ono ,  Alex H. Pai ,  Hassan Edrees

    IPC分类号： G09G3/30 ,  G09G3/3291

    摘要： 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.