公开(公告)号：US20150364088A1

公开(公告)日：2015-12-17

申请号：US14487020

申请日：2014-09-15

Applicant: Apple Inc.

Inventor： Fenghua ZHENG ,  Sandro H. PINTZ

IPC: G09G3/32

CPC classification number: G09G3/3216 ,  G09G3/2007 ,  G09G2310/0221 ,  G09G2310/027 ,  G09G2310/0291 ,  G09G2330/021 ,  G09G2340/16

Abstract: This application relates to systems, methods, and apparatus for reducing the power consumption of a display panel. Specifically, the embodiments discussed herein relate to a panel pixel charge scheme that allows the current output of a display driver to be modified based on the content to be displayed at the display panel. The display driver can compare current and upcoming display content in order to determine how the line voltage for one or more output lines will change over time. If, based on the comparison, the voltage for an output line is not going to vary substantially over time, the bias current output from the display driver can be modified in order to save power. The modification to the bias current can depend on the amount of change the line voltage will undergo in subsequent executions of the content data.

Abstract translation: 本申请涉及用于降低显示面板的功耗的系统，方法和装置。 具体来说，这里讨论的实施例涉及一种面板像素电荷方案，其允许基于要在显示面板上显示的内容来修改显示驱动器的当前输出。 显示驱动器可以比较当前和即将到来的显示内容，以便确定一条或多条输出线的线路电压如何随着时间而改变。 如果基于比较，输出线的电压在时间上不会显着变化，则可以修改从显示驱动器输出的偏置电流以节省功率。 对偏置电流的修改可以取决于随后的内容数据执行中线路电压的变化量。

公开(公告)号：US20180025689A1

公开(公告)日：2018-01-25

申请号：US15723085

申请日：2017-10-02

Applicant: Apple Inc.

Inventor： James AAMOLD ,  Fenghua ZHENG ,  Sandro H. PINTZ

IPC: G09G3/32

Abstract: This application relates to systems, methods, and apparatus for reducing the power consumption of a display panel. Specifically, the embodiments discussed herein relate to a panel pixel charge scheme that allows the current output of a display driver to be modified based on the content to be displayed at the display panel. The display driver can compare current and upcoming display content in order to determine how the line voltage for one or more output lines will change over time. If, based on the comparison, the voltage for an output line is not going to vary substantially over time, the bias current output from the display driver can be modified in order to save power. The modification to the bias current can depend on the amount of change the line voltage will undergo in subsequent executions of the content data.

公开(公告)号：US20190005897A1

公开(公告)日：2019-01-03

申请号：US15893317

申请日：2018-02-09

Applicant: Apple Inc.

Inventor： Manev LUTHRA ,  Joseph P. MANCA ,  Fenghua ZHENG ,  David S. ZALATIMO

IPC: G09G3/34

Abstract: Aspects of the subject technology relate to electronic devices with displays. A display may include an array of display pixels and control circuitry for operating the display. The control circuitry may determine, based on pixel values for a row of display pixels, that a current in common supply voltage circuitry for the display pixels will exceed a threshold, if the row of display pixels is operated using the pixel values. The control circuitry may modify the pixel values for the row of display pixels to reduce the current in the common supply voltage circuitry and/or prevent the current in the common supply voltage circuitry from exceeding the threshold.

公开(公告)号：US20180350313A1

公开(公告)日：2018-12-06

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

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.

公开(公告)号：US20160275850A1

公开(公告)日：2016-09-22

申请号：US15060323

申请日：2016-03-03

Applicant: Apple Inc.

Inventor： Fenghua ZHENG ,  Paolo SACCHETTO

IPC: G09G3/20 ,  G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/0248 ,  G09G2310/0275 ,  G09G2320/0285

Abstract: This application sets forth systems, methods, and apparatus for improving charge settling times for lines and pixels of a display panel. The charge settling times are improved by providing an over drive signal and a bias current to a line and/or pixel of the display panel based a comparison of content data to be output by the display panel. In this way, by initially charging the line and/or pixel with the over drive signal, the line and/or pixel can be fully charged more quickly in display panels that operate at higher refresh rates.

Abstract translation: 该应用阐述了用于改善显示面板的线和像素的电荷稳定时间的系统，方法和装置。 通过基于由显示面板输出的内容数据的比较，向显示面板的线和/或像素提供过驱动信号和偏置电流来改善电荷建立时间。 以这种方式，通过使用过驱动信号对行和/或像素进行初始充电，可以在更高刷新率的显示面板中更快速地对线和/或像素进行完全充电。

公开(公告)号：US20170047027A1

公开(公告)日：2017-02-16

申请号：US15338297

申请日：2016-10-28

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

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。