公开(公告)号：EP4083985A1

公开(公告)日：2022-11-02

申请号：EP22179130.4

申请日：2018-08-21

Applicant: Apple Inc.

Inventor： CHAPPALLI, Mahesch B. ,  TANN, Christopher P. ,  LACHOWSKY, Stephan R. ,  HOLLAND, Peter F. ,  COTE, Guy

IPC: G09G3/22

Abstract: An electronic display pipeline may process image data for display on an electronic display. The electronic display pipeline may include burn-in compensation statistics collection circuitry and burn-in compensation circuitry. The burn-in compensation statistics collection circuitry may collect image statistics based at least in part on the image data. The statistics may estimate a likely amount of non-uniform aging of the sub-pixels of the electronic display. The burn-in compensation circuitry may apply a gain to sub-pixels of the image data to account for non-uniform aging of corresponding sub-pixels of the electronic display. The applied gain may be based at least in part on the image statistics collected by the burn-in compensation statistics collection circuitry.

公开(公告)号：EP3454323A1

公开(公告)日：2019-03-13

申请号：EP18189845.3

申请日：2018-08-21

Applicant: Apple Inc.

Inventor： CHAPPALLI, Mahesch B. ,  TANN, Christopher P. ,  LACHOWSKY, Stephan R. ,  HOLLAND, Peter F. ,  COTE, Guy

IPC: G09G3/22

Abstract: An electronic display pipeline may process image data for display on an electronic display. The electronic display pipeline may include burn-in compensation statistics collection circuitry and burn-in compensation circuitry. The burn-in compensation statistics collection circuitry may collect image statistics based at least in part on the image data. The statistics may estimate a likely amount of non-uniform aging of the sub-pixels of the electronic display. The burn-in compensation circuitry may apply a gain to sub-pixels of the image data to account for non-uniform aging of corresponding sub-pixels of the electronic display. The applied gain may be based at least in part on the image statistics collected by the burn-in compensation statistics collection circuitry.

公开(公告)号：EP3353770A1

公开(公告)日：2018-08-01

申请号：EP16760313.3

申请日：2016-08-26

Applicant: Apple Inc.

Inventor： TRIPATHI, Brijesh ,  TANN, Christopher P. ,  WANG, Chaohao ,  ZALATIMO, David S. ,  COTE, Guy

IPC: G09G3/20

CPC classification number: G09G3/3614 ,  G09G3/20 ,  G09G2310/0256 ,  G09G2310/08 ,  G09G2320/0204 ,  G09G2330/021 ,  G09G2340/0435

Abstract: Devices and methods for reducing and/or substantially eliminating pixel charge imbalance due to variable refresh rates are provided. By way of example, a method includes providing a first frame of image data via a processor to a plurality of pixels of the display during a first frame period corresponding to a first refresh rate, and providing a second frame of image data to the plurality of pixels of the display during a second frame period corresponding to a second refresh rate. The method further includes dividing the first frame period into a first frame sub-period and a second frame sub-period, and driving the plurality of pixels of the display with the first frame of image data during the first frame sub-period and the second frame sub-period.

公开(公告)号：EP3238207A2

公开(公告)日：2017-11-01

申请号：EP16710515.4

申请日：2016-02-09

Applicant: Apple Inc.

Inventor： WANG, Chaohao ,  ZALATIMO, David S. ,  ZHAO, Lei ,  TANN, Christopher P. ,  SACCHETTO, Paolo ,  PINTZ, Sandro H. ,  HUANG, Yi ,  QI, Jun

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G2310/0254 ,  G09G2310/04 ,  G09G2310/08 ,  G09G2320/0266 ,  G09G2340/0435

Abstract: One embodiment describes an electronic display that displays image frames with a first refresh rate or a second refresh rate, in which the second refresh rate is lower than the first refresh rate; a display driver that writes the image frames by applying voltage to a display panel; and a timing controller that receives first image data from an image source, in which the first image data describes a first image frame and a first desired refresh rate equal to the second fresh rate; and that instructs the display driver to apply a first set of voltage polarities to the display panel to display first image frame at the first refresh rate and to apply a second set of voltage polarities to the display the first image frame at the second refresh rate when polarity of inversion imbalance accumulated is equal to polarity of the first set of voltage polarities.

Abstract translation: 一个实施例描述了一种电子显示器，其以第一刷新率或第二刷新率显示图像帧，其中第二刷新率低于第一刷新率; 显示驱动器，通过向显示面板施加电压来写入图像帧; 以及定时控制器，其从图像源接收第一图像数据，其中第一图像数据描述第一图像帧和等于第二新鲜率的第一所需刷新率; 并且指示显示驱动器将第一组电压极性施加到显示面板以按第一刷新率显示第一图像帧并且当以第二刷新率显示第一图像帧时将第二组电压极性施加到第二刷新率 积累的反转不平衡的极性等于第一组电压极性的极性。

公开(公告)号：EP3161814A1

公开(公告)日：2017-05-03

申请号：EP15728363.1

申请日：2015-06-01

Applicant: Apple Inc.

Inventor： TANN, Christopher P. ,  KIM, Taesung ,  PINTZ, Sandro H.

IPC: G09G3/20

CPC classification number: G09G3/2092 ,  G09G3/20 ,  G09G3/3614 ,  G09G2300/0819 ,  G09G2310/0254 ,  G09G2310/063 ,  G09G2310/08 ,  G09G2320/0204 ,  G09G2340/0435

Abstract: Systems, methods, and device are provided to provide inversion techniques for dynamic variable refresh rate electronic displays. One embodiment of the present disclosure describes An electronic display including a display panel that display images with varying refresh rates and a timing controller that receives image data from an image source, determines a counter value, and instructs a driver in the electronic display to apply a voltage to the display panel to write an image on the display panel, in which a negative voltage is applied when the counter value is positive and a positive voltage is applied when the counter value is less than or equal to zero. Additionally, the timing controller update the counter value based at least in part on duration the image is displayed on the display panel, wherein the counter value increases when the voltage is positive and decreases when the voltage is negative.

Abstract translation: 提供系统，方法和设备来为动态可变刷新率电子显示器提供反转技术。 本公开的一个实施例描述了一种电子显示器，该电子显示器包括显示具有变化的刷新率的图像的显示面板和时序控制器，该时序控制器从图像源接收图像数据，确定计数器值并且指示电子显示器中的驾驶员 电压施加到显示面板以在显示面板上写入图像，其中当计数器值为正时施加负电压并且当计数器值小于或等于零时施加正电压。 另外，定时控制器至少部分地基于图像在显示面板上显示的持续时间来更新计数器值，其中计数器值在电压为正时增加，而在电压为负时减小。

公开(公告)号：EP2943948B1

公开(公告)日：2020-07-29

申请号：EP14737800.4

申请日：2014-01-14

Applicant: Apple Inc.

Inventor： NAMBI, Prasanna ,  GOMEZ, Jason N. ,  ZHENG, Fenghua ,  SACCHETTO, Paolo ,  PINTZ, Sandro H. ,  KIM, Taesung ,  TANN, Christopher P. ,  ALBRECHT, Marc ,  LUM, David W.

IPC: G09G3/36 ,  G09G3/20

公开(公告)号：EP3238208A1

公开(公告)日：2017-11-01

申请号：EP16712116.9

申请日：2016-02-24

Applicant: Apple Inc.

Inventor： SACCHETTO, Paolo ,  LUM, David W. ,  TANN, Christopher P. ,  COTE, Guy ,  WANG, Chaohao ,  PINTZ, Sandro H.

IPC: G09G5/00

CPC classification number: G09G5/006 ,  G09G2330/021 ,  G09G2340/02 ,  G09G2340/0435 ,  G09G2350/00 ,  G09G2370/10

Abstract: Methods and devices employing circuitry for dynamically adjusting bandwidth control of a display interface are provided. The display interface or image content is dynamically adjusted to support both high-speed image data (e.g., 120 Hz image data) and lower-speed content (e.g., 60 Hz content). For example, in some embodiments, additional pixel pipelines and/or processing lanes may be activated during the rendering of high-speed image data, but not during the rendering of low-speed image data. Additionally or alternatively, high-speed image data, but not low-speed data, may be compressed to render high-speed content over an interface that supports only low-speed content.

Abstract translation: 提供了采用电路动态调整显示接口的带宽控制的方法和设备。 动态调整显示界面或图像内容以支持高速图像数据（例如，120Hz图像数据）和较低速度内容（例如，60Hz内容）两者。 例如，在一些实施例中，可以在渲染高速图像数据的过程中激活额外的像素管线和/或处理通道，但在渲染低速图像数据期间不激活附加的像素管线和/或处理通道。 另外地或可选地，高速图像数据（而非低速数据）可以被压缩以通过仅支持低速内容的接口呈现高速内容。

公开(公告)号：EP2943948A1

公开(公告)日：2015-11-18

申请号：EP14737800.4

申请日：2014-01-14

Applicant: Apple Inc.

Inventor： NAMBI, Prasanna ,  GOMEZ, Jason N. ,  ZHENG, Fenghua ,  SACCHETTO, Paolo ,  PINTZ, Sandro H. ,  KIM, Taesung ,  TANN, Christopher P. ,  ALBRECHT, Marc ,  LUM, David W.

IPC: G09G3/36 ,  G09G3/20

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.