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公开(公告)号:US20190066569A1
公开(公告)日:2019-02-28
申请号:US15967892
申请日:2018-05-01
Applicant: Apple Inc.
Inventor: Yingying Tang , Chaohao Wang , Sheng Zhang , Yunhui Hou , Paolo Sacchetto , Koorosh Aflatooni , Gokhan Avkarogullari , Guy Cote , Mahesh B. Chappalli , Peter F. Holland
Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
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公开(公告)号:US20190034026A1
公开(公告)日:2019-01-31
申请号:US16140532
申请日:2018-09-24
Applicant: Apple Inc.
Inventor: Chih-Wei Yeh , Chaohao Wang , Paolo Sacchetto , Wei Chen
IPC: G06F3/041 , G09G3/3258
Abstract: Devices and methods for improving image quality and decreasing power consumption of an electronic display are provided. The electronic device includes a display panel including a plurality of pixels configured to display an image, and to operate at multiple refresh rates. The electronic device also includes a processor configured to instruct the display panel to transition between the multiple refresh rates based at least in part on a blur effective width of the image.
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公开(公告)号:US20180366078A1
公开(公告)日:2018-12-20
申请号:US16113132
申请日:2018-08-27
Applicant: Apple Inc.
Inventor: Chaohao Wang , Brijesh Tripathi , Christopher Philip Alan Tann , David S. Zalatimo , Guy Cote , Hao Nan , Marc Albrecht , Paolo Sacchetto , Sandro H. Pintz
IPC: G09G3/36
Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The image frames may be displayed with positive and negative polarities to help reduce charge accumulation effects. A charge accumulation tracker may analyze the image frames to determine when there is a risk of excess charge accumulation. The charge accumulation tracker may analyze information on gray levels, frame duration, and frame polarity. The charge accumulation tracker may compute a charge accumulation metric for entire image frames or may process subregions of each frame separately. When subregions are processed separately, each subregion may be individually monitored for a risk of excess charge accumulation.
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公开(公告)号:US20180350297A1
公开(公告)日:2018-12-06
申请号:US15900733
申请日:2018-02-20
Applicant: Apple Inc.
Inventor: Abhinav Pathak , Conor J. O'Reilly , Shashi K. Dua , Udaykumar R. Raval , Christopher W. Chaney , Amit K. Vyas , Albert S. Liu , Roberto Alvarez , Rohit Mundra , Vladislav Sahnovich , Patrick Y. Law , Paul M. Thompson , Paolo Sacchetto , Chaohao Wang , Arthur L. Spence , Jean-Pierre Simon Guillou , Mohammad Ali Jangda , Christopher Edward Glazowski , Yifan Zhang
IPC: G09G3/3208
CPC classification number: G09G3/3208 , G09G2320/0295 , G09G2320/0626 , G09G2320/0673 , G09G2320/08 , G09G2330/021 , G09G2340/0435 , G09G2354/00 , G09G2360/08 , G09G2360/16
Abstract: Circuits, methods, and apparatus that may estimate the power being consumed by an OLED display screen of an electronic device, may provide further information about that power usage, may modify or change functions performed by the electronic device based on that power usage, and may inform an application's developer about the amount of power being used by the electronic device while the electronic device is running the application. One example may estimate the power being used by an OLED display screen of an electronic device by determining the content of images being displayed during a duration. The estimated power may then be presented to a user. The estimated power may be used in decisions to modify or change parameters of the screen or other device components.
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公开(公告)号:US10133403B2
公开(公告)日:2018-11-20
申请号:US15275375
申请日:2016-09-24
Applicant: APPLE INC.
Inventor: Chih-Wei Yeh , Chaohao Wang , Paolo Sacchetto , Wei Chen
IPC: G06F3/041 , G09G3/20 , G09G3/3258 , G09G3/36 , G06F3/0488 , G06F1/32 , G09G3/3208 , G06F3/0354
Abstract: Devices and methods for improving image quality and decreasing power consumption of an electronic display are provided. The electronic device includes a display panel including a plurality of pixels configured to display an image, and to operate at multiple refresh rates. The electronic device also includes a processor configured to instruct the display panel to transition between the multiple refresh rates based at least in part on a blur effective width of the image.
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公开(公告)号:US10102815B2
公开(公告)日:2018-10-16
申请号:US15890517
申请日:2018-02-07
Applicant: Apple Inc.
Inventor: Chaohao Wang , Brijesh Tripathi , Christopher Philip Alan Tann , David S. Zalatimo , Guy Cote , Hao Nan , Marc Albrecht , Paolo Sacchetto , Sandro H. Pintz
IPC: G09G3/36
Abstract: An electronic device may generate content that is to be displayed on a display. The display may have an array of liquid crystal display pixels for displaying image frames of the content. The image frames may be displayed with positive and negative polarities to help reduce charge accumulation effects. A charge accumulation tracker may analyze the image frames to determine when there is a risk of excess charge accumulation. The charge accumulation tracker may analyze information on gray levels, frame duration, and frame polarity. The charge accumulation tracker may compute a charge accumulation metric for entire image frames or may process subregions of each frame separately. When subregions are processed separately, each subregion may be individually monitored for a risk of excess charge accumulation.
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公开(公告)号:US10008139B2
公开(公告)日:2018-06-26
申请号:US14995796
申请日:2016-01-14
Applicant: APPLE INC.
Inventor: Howard H. Tang , Wei Chen , Paolo Sacchetto , Chaohao Wang , Chun-Yao Huang , Hao-Lin Chiu
CPC classification number: G09G3/00 , G09G3/20 , G09G2300/0426 , G09G2310/0218 , G09G2310/0278 , G09G2310/0281 , G09G2320/0209 , G09G2320/0219
Abstract: A display device may include a plurality of pixels, a plurality of source lines that may provide a plurality of data line signals to the plurality of pixels, a plurality of gate lines that may provide a plurality of gate signals to a plurality of switches associated with the plurality of pixels, and a plurality of voltage gate lines disposed parallel to the plurality of source lines and coupled to the plurality of gate lines at a plurality of cross point nodes. The plurality of cross point nodes are positioned in a pseudo random order across the display device.
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58.
公开(公告)号:US20160277706A1
公开(公告)日:2016-09-22
申请号:US14659723
申请日:2015-03-17
Applicant: APPLE INC.
Inventor: Christopher P. Tann , Chaohao Wang , David S. Zalatimo , Marc Albrecht , Paolo Sacchetto , Sandro H. Pintz , Satish S. Iyengar
CPC classification number: H04N7/0127 , G06F1/3218 , G06F1/3265 , G09G5/001 , G09G2330/021 , H04N7/0115 , Y02D10/153
Abstract: Systems and methods for controlling operation of an electronic display are provided. One embodiment describes an electronic display, which includes a display driver that writes image frames to pixels of the electronic display with a first refresh rate or a second refresh rate; and a timing controller that receives a plurality of image frames from an image source, in which the plurality of image frames are displayed on the electronic display to play video content; detects a cadence with which the plurality of image frames are received from the image source; and, based at least in part on the cadence of the plurality of image frames, instructs the display driver to write each of the plurality of image frames either as a single image frame at the first refresh rate or an image frame at the first refresh rate followed by a repeat of the image frame at the second refresh rate.
Abstract translation: 提供了一种用于控制电子显示器操作的系统和方法。 一个实施例描述了一种电子显示器,其包括以第一刷新率或第二刷新率将图像帧写入电子显示器的像素的显示驱动器; 以及定时控制器,其从图像源接收多个图像帧,其中所述多个图像帧在所述电子显示器上显示以播放视频内容; 从图像源检测接收到多个图像帧的节奏; 并且至少部分地基于多个图像帧的节奏,指示显示驱动器将多个图像帧中的每一个作为第一刷新率的单个图像帧或以第一刷新率的图像帧进行写入 随后以第二刷新率重复图像帧。
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公开(公告)号:US20160246430A1
公开(公告)日:2016-08-25
申请号:US14630280
申请日:2015-02-24
Applicant: APPLE INC.
Inventor: Chaohao Wang , Paolo Sacchetto , Zhibing Ge , Cheng Chen , Shih-Chyuan Fan Jiang
CPC classification number: G06F3/0416 , G06F3/0412 , G06F3/044 , G09G3/2011 , G09G3/3648 , G09G5/12 , G09G2310/027 , G09G2320/0266 , G09G2320/0271 , G09G2320/103 , G09G2340/16
Abstract: One embodiment describes an electronic display. The electronic display includes display driver circuitry that display an image frame on the electronic device using a first display pixel and a second display pixel, touch sensing circuitry that detect user interaction with the electronic display, and a timing controller. The timing controller receives image data, in which the image data describes a target grayscale value of the first pixel and the second pixel to display the image frame, instructs the display driver circuitry to display a first portion of the image frame by writing the image data to the first display pixel, instructs the touch sensing circuitry to determine whether a user touch is present on a surface of the electronic display after the first portion of the image frame is displayed, determines grayscale value displayed by the second display pixel to display a previous image frame, and instructs the display driver circuitry to display a second portion of the image frame by writing adjusted image data to the second display pixel when the displayed grayscale value differs from the target grayscale value of the second pixel by more than a threshold amount.
Abstract translation: 一个实施例描述了电子显示器。 电子显示器包括使用第一显示像素和第二显示像素在电子设备上显示图像帧的显示驱动器电路,检测用户与电子显示器的交互的触摸感测电路以及定时控制器。 定时控制器接收图像数据,其中图像数据描述第一像素的目标灰度值和用于显示图像帧的第二像素,指示显示驱动器电路通过写入图像数据来显示图像帧的第一部分 指示触摸感测电路在显示图像帧的第一部分之后确定用户触摸是否存在于电子显示器的表面上,确定由第二显示像素显示的灰度值以显示前一个 并且当显示的灰度值与第二像素的目标灰度值不同于阈值时,通过将调整后的图像数据写入第二显示像素来指示显示驱动器电路显示图像帧的第二部分。
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公开(公告)号:US20160093239A1
公开(公告)日:2016-03-31
申请号:US14500646
申请日:2014-09-29
Applicant: APPLE INC.
Inventor: Chaohao Wang , Louis Luh , Jun Qi , Cheng Chen , Jun Jiang , Paolo Sacchetto , Marc Albrecht
CPC classification number: G06F1/32 , G09G5/003 , G09G2320/0247 , G09G2330/021 , G09G2340/0435 , G09G2360/16
Abstract: Systems and methods for operating a display by dynamically determining a refresh rate for the display. In certain implementations, a processor determines a number of pixels having medium grayscale levels from a histogram for the image. If the number does not exceed a threshold, the processor sets a refresh rate for the display to a first refresh rate. In certain implementations, if the number exceeds a threshold, the processor may set the refresh rate for the display to a second refresh rate. Moreover, the first refresh rate may be lower than the second threshold. In some implementations, the image may be analyzed by subdividing the image into blocks and determining a refresh rate based on grayscale levels or distributions in the blocks. Based on the analysis of the blocks, a corresponding refresh rate may be selected.
Abstract translation: 通过动态地确定显示器的刷新率来操作显示器的系统和方法。 在某些实现中,处理器根据图像的直方图确定具有中等灰度等级的像素数。 如果号码不超过阈值,则处理器将显示器的刷新率设置为第一刷新率。 在某些实现中,如果数量超过阈值,则处理器可以将显示器的刷新率设置为第二刷新率。 此外,第一刷新率可以低于第二阈值。 在一些实现中,可以通过将图像细分为块并且基于块中的灰度等级或分布来确定刷新率来分析图像。 基于块的分析,可以选择相应的刷新率。
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