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    Direct led temperature sensing systems and methods
    2.
    发明授权
    Direct led temperature sensing systems and methods 有权

    公开(公告)号：US12073782B2

    公开(公告)日：2024-08-27

    申请号：US18335114

    申请日：2023-06-14

    Applicant: Apple Inc.

    Inventor： Johan L Piper ,  Arash Hazeghi ,  Adam Adjiwibawa

    IPC: G09G3/3225 ,  G09G3/34

    CPC classification number: G09G3/3225 ,  G09G3/346 ,  G09G2310/08 ,  G09G2320/041

    Abstract: A device may include an electronic display to display an image frame based on image data. The electronic display may include an illuminator that generates light, multiple light regulators that control emission of the light pixel locations on the electronic display based on bitplane data, and driving circuitry that applies an operating electrical stimulus to the illuminator during an emission period of the image frame and a reference electrical stimulus to the illuminator during an off period of the image frame. While the reference electrical stimulus is applied the bitplane data may be indicative of off bitplane. Additionally, the electronic display may include measurement circuitry that measures a response characteristic of the illuminator in response to the reference electrical stimulus and generates temperature data indicative of the temperature of the illuminator based on the response characteristic.

    Display with soft-transitioning column driver circuitry
    3.
    发明授权
    Display with soft-transitioning column driver circuitry 有权

    公开(公告)号：US10115357B2

    公开(公告)日：2018-10-30

    申请号：US13718116

    申请日：2012-12-18

    Applicant: Apple Inc.

    Inventor： Taesung Kim ,  Adam Adjiwibawa

    IPC: G09G3/36

    Abstract: An electronic device may have a display that has column driver circuitry for providing data line signals to data lines in an array of display pixels. Gate line signals on gate lines in the array and the data line signals may be used in controlling the array to display images for a user of the electronic device. The column driver circuitry may include voltage divider circuitry such as a chain of resistors with reference voltage nodes. The nodes may be provided with reference voltages from corresponding input pins. During normal operation of the column driver circuitry, a voltage supply may supply a set of column driver voltage divider reference voltages to the input pins. During power state transitions when power supply lines for the column driver circuitry might be subjected to undesirable current surges, the voltage supply may be used in supplying transitional voltages to the input pins.

    DISPLAY PANEL VOLTAGE PROTECTION SCHEME
    4.
    发明申请
    DISPLAY PANEL VOLTAGE PROTECTION SCHEME 有权

    公开(公告)号：US20240420615A1

    公开(公告)日：2024-12-19

    申请号：US18660166

    申请日：2024-05-09

    Applicant: Apple Inc.

    Inventor： Hasan Akyol ,  Henry C. Jen ,  Stanley B. Wang ,  Baris Cagdaser ,  Rahul Shukla ,  John T. Wetherell ,  Bin Huang ,  Derek K. Shaeffer ,  Pablo Moreno Galbis ,  Johan L. Piper ,  Lawrence C. Tan ,  Adam Adjiwibawa ,  Manu Mishra

    IPC: G09G3/20

    Abstract: An electronic device may include a display panel and a display driver. The display panel may include multiple pixels each receiving a supply voltage and a respective data voltage to emit light. The display driver may include a low drop-out regulator (LDO) to provide the supply voltage to the pixels. The LDO may operate in a normal operation mode and a hard park mode. In the normal operation mode, the LDO may generate the supply voltage based on receiving a reference voltage and a bias voltage within a bias voltage range to operate in the normal operation mode. In the hard park mode, the LDO may become idle (e.g., shut-down mode) based on receiving a hard park mode voltages from dedicated replacement circuits. For example, including the dedicated reference voltage replacement circuit with the display driver may improve reliability and efficiency of the electronic device when de-energizing the LDO.

    Display System and Rigid Flex PCB with Flip Chip Bonded Inside Cavity
    5.
    发明申请
    Display System and Rigid Flex PCB with Flip Chip Bonded Inside Cavity 有权

    公开(公告)号：US20210084777A1

    公开(公告)日：2021-03-18

    申请号：US16912522

    申请日：2020-06-25

    Applicant: Apple Inc.

    Inventor： Adam Adjiwibawa ,  Shaowei Qin ,  Victor H. Yin ,  Wenyong Zhu ,  Steven M. Scardato

    IPC: H05K3/46

    Abstract: A rigid flex printed circuit board (PCB), method of manufacture, and display system incorporating the same are described. In an embodiment, a rigid flex PCB includes a flexible area extending from an adjacent routing area that is thicker than the flexible area. A flexible inner core spans the flexible area and the adjacent routing area. Outer stack-up layers are on the flexible inner core in the adjacent routing area. A cavity is formed in the outer stack-up layers in the routing area and exposes the flexible inner core. In an embodiment, a display system including such a circuit board may include an electronic component mounted on the flexible inner core within the cavity, and a distal end of the flexible area is bonded to a display panel.

    DIRECT LED TEMPERATURE SENSING SYSTEMS AND METHODS
    7.
    发明公开
    DIRECT LED TEMPERATURE SENSING SYSTEMS AND METHODS 审中-公开

    公开(公告)号：US20240105118A1

    公开(公告)日：2024-03-28

    申请号：US18335114

    申请日：2023-06-14

    Applicant: Apple Inc.

    Inventor： Johan L Piper ,  Arash Hazeghi ,  Adam Adjiwibawa

    IPC: G09G3/3225 ,  G09G3/34

    CPC classification number: G09G3/3225 ,  G09G3/346 ,  G09G2310/08 ,  G09G2320/041

    Abstract: A device may include an electronic display to display an image frame based on image data. The electronic display may include an illuminator that generates light, multiple light regulators that control emission of the light pixel locations on the electronic display based on bitplane data, and driving circuitry that applies an operating electrical stimulus to the illuminator during an emission period of the image frame and a reference electrical stimulus to the illuminator during an off period of the image frame. While the reference electrical stimulus is applied the bitplane data may be indicative of off bitplane. Additionally, the electronic display may include measurement circuitry that measures a response characteristic of the illuminator in response to the reference electrical stimulus and generates temperature data indicative of the temperature of the illuminator based on the response characteristic.

    Display system and rigid flex PCB with flip chip bonded inside cavity
    8.
    发明授权
    Display system and rigid flex PCB with flip chip bonded inside cavity 有权

    公开(公告)号：US11129284B2

    公开(公告)日：2021-09-21

    申请号：US16912522

    申请日：2020-06-25

    Applicant: Apple Inc.

    Inventor： Adam Adjiwibawa ,  Shaowei Qin ,  Victor H. Yin ,  Wenyong Zhu ,  Steven M. Scardato

    IPC: H05K1/00 ,  H05K3/46

    Abstract: A rigid flex printed circuit board (PCB), method of manufacture, and display system incorporating the same are described. In an embodiment, a rigid flex PCB includes a flexible area extending from an adjacent routing area that is thicker than the flexible area. A flexible inner core spans the flexible area and the adjacent routing area. Outer stack-up layers are on the flexible inner core in the adjacent routing area. A cavity is formed in the outer stack-up layers in the routing area and exposes the flexible inner core. In an embodiment, a display system including such a circuit board may include an electronic component mounted on the flexible inner core within the cavity, and a distal end of the flexible area is bonded to a display panel.

    Systems and methods for driving an electronic display using a ramp DAC
    9.
    发明授权
    Systems and methods for driving an electronic display using a ramp DAC 有权

    公开(公告)号：US10715168B2

    公开(公告)日：2020-07-14

    申请号：US15600356

    申请日：2017-05-19

    Applicant: Apple Inc.

    Inventor： Adam Adjiwibawa ,  David W. Lum ,  Wonjae Choi ,  Hynwoo Nho ,  Hopil Bae ,  Injae Hwang ,  Bryce T. Bradford ,  Jie Won Ryu ,  Hung Sheng Lin

    IPC: H03H11/26 ,  H03M1/66 ,  G09G3/20

    Abstract: A display device may include rows of pixels that displays image data on a display, data lines coupled to the rows of pixels, and a digital-to-analog converter (DAC) that outputs a ramp voltage signal including a data voltage to be depicted on a first pixel of the rows of pixels. The display device may also include a capacitor that receives the ramp voltage signal via the DAC and a circuit that sends a control signal to a circuit component that causes the DAC to couple to the capacitor via one of the data lines for a duration of time that comprises a first time when the ramp voltage signal is below the data voltage and a second time when the ramp voltage signal is approximately equal to the data voltage. The capacitor is coupled to the DAC when the ramp voltage signal is greater than zero.

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