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    Display with soft-transitioning column driver circuitry
    1.
    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.

    INVERSION BALANCING COMPENSATION
    4.
    发明申请
    INVERSION BALANCING COMPENSATION 有权
    逆向平衡补偿

    公开(公告)号：US20160117971A1

    公开(公告)日：2016-04-28

    申请号：US14986181

    申请日：2015-12-31

    Applicant: Apple Inc.

    Inventor： Paolo Scchetto ,  Christopher P. Tann ,  Taesung Kim ,  Sandro H. Pintz ,  Marc Albrecht ,  Chaohao Wang ,  David S. Zalatimo ,  Fenghua Zheng ,  Zhibing Ge

    IPC: G09G3/20

    CPC classification number: G09G3/20 ,  G09G2310/0254 ,  G09G2310/063 ,  G09G2310/08 ,  G09G2320/0204 ,  G09G2340/0435

    Abstract: System and method for improving displayed image quality of an electronic display that displays a first image frame by applying a first voltage to a display pixel and a second image frame directly before the first image frame by applying a second voltage to the display pixel. A display pipeline is communicatively coupled to the electronic display and receives first image data corresponding with the first image frame, where the image data includes a first grayscale value corresponding with the display pixel. Additionally the display pipeline determines an inversion balancing grayscale offset based at least in part on the first grayscale value when polarity of the first voltage and polarity of the second voltage are the same and determines magnitude of the first voltage by applying the inversion balancing grayscale offset to the first grayscale value to reduce likelihood of a perceivable luminance spike when displaying the first image frame.

    Abstract translation: 一种用于通过向显示像素施加第二电压来提高通过对第一图像帧之前的显示像素和第二图像帧施加第一电压来显示第一图像帧的电子显示器的显示图像质量的系统和方法。 显示管线通信地耦合到电子显示器并接收与第一图像帧对应的第一图像数据，其中图像数据包括与显示像素对应的第一灰度值。 此外，当第一电压的极性和第二电压的极性相同时，至少部分地基于第一灰度值，显示管线确定反转平衡灰度偏移，并且通过将反转平衡灰度偏移应用于第一电压的幅度来确定第一电压的幅度 第一灰度值，以在显示第一图像帧时降低可感知的亮度尖峰的可能性。

    Low power display device with variable refresh rates
    5.
    发明授权
    Low power display device with variable refresh rates 有权
    具有可变刷新率的低功率显示设备

    公开(公告)号：US09318069B2

    公开(公告)日：2016-04-19

    申请号：US14155297

    申请日：2014-01-14

    Applicant: Apple Inc.

    Inventor： Prasanna Nambi ,  Jason N. Gomez ,  Fenghua Zheng ,  Paolo Sacchetto ,  Sandro H. Pintz ,  Taesung Kim ,  Christopher P. Tann ,  Marc Albrecht ,  David W. Lum

    IPC: G09G3/36

    CPC classification number: G09G3/3618 ,  G06T1/20 ,  G06T2210/52 ,  G09G3/36 ,  G09G3/3611 ,  G09G3/3648 ,  G09G3/3655 ,  G09G3/3696 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2330/02 ,  G09G2330/021 ,  G09G2340/0435 ,  G09G2360/18 ,  G09G2370/08

    Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

    Abstract translation: 本公开描述了在诸如膝上型计算机，平板计算机，移动电话或音乐播放器设备的消费电子设备的LCD显示器上动态地采用可变刷新率的过程。 在一些配置中，消费电子设备可以包括具有一个或多个处理器的主机系统部分和具有定时控制器，缓冲电路，显示驱动器和显示面板的显示系统部分。 显示系统可以从主机系统的GPU接收图像数据和图像控制数据，评估所接收的图像控制数据，以确定在显示面板上使用的刷新率降低（RRR），然后在切实可行的情况下转换到RRR ，以节省权力。 在某些情况下，过渡到RRR可以是从50赫兹或更高的LRR到40赫兹或更低的RRR的转换。

    DEVICES AND METHODS FOR REDUCING POWER TO DRIVE PIXELS OF A DISPLAY
    6.
    发明申请
    DEVICES AND METHODS FOR REDUCING POWER TO DRIVE PIXELS OF A DISPLAY 有权
    用于将功率降低到显示器的驱动像素的装置和方法

    公开(公告)号：US20140085287A1

    公开(公告)日：2014-03-27

    申请号：US13677037

    申请日：2012-11-14

    Applicant: APPLE INC.

    Inventor： Taesung Kim

    IPC: G09G3/36

    CPC classification number: G09G3/3614 ,  G09G3/3648 ,  G09G2320/0673 ,  G09G2330/028

    Abstract: The present disclosure relates to various techniques, systems, devices, and methods for driving high resolution monitors while reducing artifacts thereon. Data may be stored on pixels of a display such that a first half of the pixels of the display (e.g., arranged in a checkerboard fashion) have data of a first polarity stored on them during a first half of a frame, then a second half of the pixels of the display have data of a second polarity stored on them during a second half of the frame. In such an arrangement, the polarity used to provide data to the pixels may be switched only one time during each frame. The data provided to drive the second half of pixels may be inverted relative to the first half of pixels. The display may use the dot inversion method to provide overall good image quality, yet operate with reduced power consumption.

    Abstract translation: 本公开涉及用于驱动高分辨率监视器同时减少其上的伪影的各种技术，系统，设备和方法。 数据可以存储在显示器的像素上，使得显示器的像素的前半部分（例如以棋盘方式布置）在帧的前半部分具有存储在其上的第一极性的数据，然后是后半部分 的显示器的像素在帧的后半段期间具有存储在其上的第二极性的数据。 在这种布置中，用于向像素提供数据的极性可以在每帧期间仅切换一次。 提供用于驱动第二半像素的数据可以相对于像素的前半部分反转。 显示器可以使用点反转方法来提供整体良好的图像质量，但是以降低的功耗进行操作。

    Inversion balancing compensation
    7.
    发明授权
    Inversion balancing compensation 有权

    公开(公告)号：US10762820B2

    公开(公告)日：2020-09-01

    申请号：US16269439

    申请日：2019-02-06

    Applicant: Apple Inc.

    Inventor： Christopher P. Tann ,  Taesung Kim ,  Sandro H. Pintz

    IPC: G09G3/20

    Abstract: System and method for improving displayed image quality of an electronic display that displays a first image frame by applying a first voltage to a display pixel and a second image frame directly before the first image frame by applying a second voltage to the display pixel. A display pipeline is communicatively coupled to the electronic display and receives first image data corresponding with the first image frame, where the image data includes a first grayscale value corresponding with the display pixel. Additionally the display pipeline determines an inversion balancing grayscale offset based at least in part on the first grayscale value when polarity of the first voltage and polarity of the second voltage are the same and determines magnitude of the first voltage by applying the inversion balancing grayscale offset to the first grayscale value to reduce likelihood of a perceivable luminance spike when displaying the first image frame.

    Low power display device with variable refresh rates
    8.
    发明授权
    Low power display device with variable refresh rates 有权

    公开(公告)号：US10600379B2

    公开(公告)日：2020-03-24

    申请号：US16103852

    申请日：2018-08-14

    Applicant: Apple Inc.

    Inventor： Prasanna Nambi ,  Jason N. Gomez ,  Fenghua Zheng ,  Paolo Sacchetto ,  Sandro H. Pintz ,  Taesung Kim ,  Christopher P. Tann ,  Marc Albrecht ,  David W. Lum

    IPC: G09G3/36 ,  G06T1/20

    Abstract: The disclosure describes procedures for dynamically employing a variable refresh rate at an LCD display of a consumer electronic device, such as a laptop computer, a tablet computer, a mobile phone, or a music player device. In some configurations, the consumer electronic device can include a host system portion, having one or more processors and a display system portion, having a timing controller, a buffer circuit, a display driver, and a display panel. The display system can receive image data and image control data from a GPU of the host system, evaluate the received image control data to determine a reduced refresh rate (RRR) for employing at the display panel, and then transition to the RRR, whenever practicable, to conserve power. In some scenarios, the transition to the RRR can be a transition from a LRR of 50 hertz or above to a RRR of 40 hertz or below.

    INVERSION BALANCING COMPENSATION
    9.
    发明申请
    INVERSION BALANCING COMPENSATION 审中-公开

    公开(公告)号：US20190172380A1

    公开(公告)日：2019-06-06

    申请号：US16269439

    申请日：2019-02-06

    Applicant: Apple Inc.

    Inventor： Christopher P. Tann ,  Taesung Kim ,  Sandro H. Pintz

    IPC: G09G3/20

    CPC classification number: G09G3/20 ,  G09G2310/0254 ,  G09G2310/063 ,  G09G2310/08 ,  G09G2320/0204 ,  G09G2340/0435

    Abstract: System and method for improving displayed image quality of an electronic display that displays a first image frame by applying a first voltage to a display pixel and a second image frame directly before the first image frame by applying a second voltage to the display pixel. A display pipeline is communicatively coupled to the electronic display and receives first image data corresponding with the first image frame, where the image data includes a first grayscale value corresponding with the display pixel. Additionally the display pipeline determines an inversion balancing grayscale offset based at least in part on the first grayscale value when polarity of the first voltage and polarity of the second voltage are the same and determines magnitude of the first voltage by applying the inversion balancing grayscale offset to the first grayscale value to reduce likelihood of a perceivable luminance spike when displaying the first image frame.

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