公开(公告)号：US20180090075A1

公开(公告)日：2018-03-29

申请号：US15274035

申请日：2016-09-23

Applicant: APPLE INC.

Inventor： Ilie Garbacea ,  Chaohao Wang ,  Chengrui Le

IPC: G09G3/3291 ,  G09G3/36

CPC classification number: G09G3/3291 ,  G09G3/3225 ,  G09G3/3648 ,  G09G2300/0426 ,  G09G2310/08 ,  G09G2320/0252 ,  G09G2320/0285 ,  G09G2330/021 ,  G09G2340/16

Abstract: Systems and methods for improving displayed image quality of an electronic display including a display pixel that displays an image frame based at least in part on an analog electrical signal supplied to the display pixel are provided. In some embodiments, control circuitry instructs the electronic display to display the image frame based at least in part on an expected charge accumulation in the display pixel determined using a charge accumulation model that describes one or more electric fields expected to be present in the display pixel when displaying the image frame and that provides a display pixel state indicative of expected charge accumulation in the display pixel when the image frame is to be displayed based at least in part on the one or more electric fields.

公开(公告)号：US09922608B2

公开(公告)日：2018-03-20

申请号：US14722620

申请日：2015-05-27

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

CPC classification number: G09G3/3614 ,  G09G2320/0204 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2320/046 ,  G09G2340/0435 ,  G09G2360/16

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.

公开(公告)号：US20180075798A1

公开(公告)日：2018-03-15

申请号：US15661995

申请日：2017-07-27

Applicant: Apple Inc.

Inventor： Hyunwoo Nho ,  Hung Sheng Lin ,  Jie Won Ryu ,  Junhua Tan ,  Sun-Il Chang ,  Shengkui Gao ,  Rui Zhang ,  Injae Hwang ,  Kingsuk Brahma ,  Jesse Aaron Richmond ,  Shiping Shen ,  Hyunsoo Kim ,  Sebastian Knitter ,  Lu Zhang ,  Nicolas P. Bonnier ,  Chih-Wei Yeh ,  Chaohao Wang ,  Paolo Sacchetto ,  Chin-Wei Lin ,  Mohammad B Vahid Far ,  Shinya Ono ,  Yafei Bi ,  Majid Gharghi ,  Kavinaath Murugan ,  Yun Wang ,  Derek K. Shaeffer ,  Baris Cagdaser ,  Tobias Jung ,  Marc Albrecht ,  Myung-Je Cho

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G3/3233 ,  G09G2320/0233 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/041 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2320/0626

Abstract: A mobile electronic device includes a display having a pixel and processing circuitry separate from but communicatively coupled to the display. The processing circuitry prepares image data to send to the pixel and adjusts the image data to compensate for operational variations of the display based on feedback received from the display that describes a present operational behavior of the pixel. The mobile electronic device also includes additional electronic components that affect the present operational behavior of the pixel depending on present operational behavior of the additional electronic components.

公开(公告)号：US20180068624A1

公开(公告)日：2018-03-08

申请号：US15701001

申请日：2017-09-11

Applicant: Apple Inc.

Inventor： Fenghua Zheng ,  Howard H. Tang ,  James C. Aamold ,  Sandro H. Pintz ,  Chaohao Wang ,  Paolo Sacchetto

IPC: G09G3/36

CPC classification number: G09G3/3614 ,  G09G3/3655 ,  G09G2320/0223 ,  G09G2320/029 ,  G09G2340/16

Abstract: Methods and systems for compensating for VCOM variations include determining a voltage change in pixels between frames to be displayed on an electronic display. Based on the determined voltage change, VCOM variation is calculated based on coupling the VCOM to one or more data lines of the electronic display. VCOM compensation is determined and applied to offset for the VCOM variation. Using the VCOM offset, subsequent pixel content for the one or more pixels is written using the compensated VCOM.

公开(公告)号：US09779664B2

公开(公告)日：2017-10-03

申请号：US14472272

申请日：2014-08-28

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Szu-Hsien Lee ,  Paolo Sacchetto ,  Shih Chang Chang ,  Chun-Yao Huang ,  Paul S. Drzaic

IPC: G09G3/36 ,  G09G3/3266 ,  G09G3/20 ,  G09G3/3225

CPC classification number: G09G3/3266 ,  G09G3/2044 ,  G09G3/3225 ,  G09G3/3648 ,  G09G2310/04 ,  G09G2320/0247 ,  G09G2320/0673 ,  G09G2330/021 ,  G09G2340/0435

Abstract: This application relates to methods and apparatus for refreshing a display device at various frequencies. Specifically, multiple areas of the display device can be refreshed concurrently at different frequencies. In this way, when static content is being displayed in certain areas of the display device, those certain areas can be refreshed at a lower rate than areas displaying dynamic content such as video or animation. By refreshing at lower rates, the energy consumed by the display device and subsystems associated with the display device can be reduced. Additionally, processes for reducing flicker when refreshing the display device at different refresh rates are disclosed herein.

公开(公告)号：US20170092210A1

公开(公告)日：2017-03-30

申请号：US14866539

申请日：2015-09-25

Applicant: Apple Inc.

Inventor： Christopher P. Tann ,  Chaohao Wang ,  David S. Zalatimo ,  Guy Cote ,  Brijesh Tripathi

IPC: G09G3/36

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：US20170061864A1

公开(公告)日：2017-03-02

申请号：US15246666

申请日：2016-08-25

Applicant: Apple Inc.

Inventor： Howard H. Tang ,  Paolo Sacchetto ,  Chaohao Wang ,  Szu-Hsien Lee ,  Patrick Bennett ,  Fenghua Zheng

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G3/3655 ,  G09G3/3666 ,  G09G2300/0426 ,  G09G2310/0291 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0257 ,  G09G2320/0266

Abstract: The disclosure relates to systems and methods for reducing VCOM settling periods. A number of pixels is sub-divided into a plurality of regions. The pixels are configured to transmit light. A common voltage (VCOM) driving circuit is configured to drive a common electrode of the pixels. Moreover, each of a number of VCOM driving circuits includes a variable resistor configured to be driven to a resistance level based at least in part on which region of the plurality of regions includes an active pixel within the region. Furthermore, a resistance level is set and based at least in part on where the active pixel is located.

Abstract translation: 本公开涉及用于减少VCOM建立周期的系统和方法。 多个像素被细分为多个区域。 像素被配置为透射光。 公共电压（VCOM）驱动电路被配置为驱动像素的公共电极。 此外，多个VCOM驱动电路中的每一个包括被配置为至少部分地基于该区域中的有源像素的多个区域的哪个区域被驱动到电阻电平的可变电阻器。 此外，设置电阻水平并且至少部分地基于活动像素位于何处。

公开(公告)号：US20170061837A1

公开(公告)日：2017-03-02

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

IPC: G09G3/00

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.

Abstract translation: 显示装置可以包括多个像素，可以向多个像素提供多条数据线信号的多条源极线，可以向与多个像素相关联的多个开关提供多个栅极信号的多条栅极线 所述多个像素以及与所述多个源极线平行设置并且在多个交叉点节点处耦合到所述多个栅极线的多个电压栅极线。 多个交叉点节点以跨越显示设备的伪随机顺序定位。

公开(公告)号：US20160358526A1

公开(公告)日：2016-12-08

申请号：US14732764

申请日：2015-06-07

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Wonjae Choi ,  Sandro H. Pintz ,  Paolo Sacchetto

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G06F1/3234 ,  G06F1/3265 ,  G09G3/3208 ,  G09G3/3614 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2360/08 ,  G09G2360/16 ,  G09G2360/18 ,  Y02B70/16

Abstract: This application relates to systems, methods, and apparatus for optimizing the operations of a power converter of a display panel based on image data to be output by the display panel. The power converter can include one or more switches that can be activated or deactivated based on the image data in order to shift a power efficiency of the power converter. Power efficiency is shifted as a result of balancing an amount of charge necessary for a load with an amount of resistance created when activating switches of the power converter. Therefore, by dynamically altering a configuration of a power converter based on image data, power efficiency of the power converter can be improved.

Abstract translation: 本申请涉及基于要由显示面板输出的图像数据来优化显示面板的功率转换器的操作的系统，方法和装置。 功率转换器可以包括可以基于图像数据激活或去激活的一个或多个开关，以便移动功率转换器的功率效率。 由于功率转换器启动开关时产生的电阻量平衡负载所需的电荷量，因此电力效率转移。 因此，通过基于图像数据动态地改变功率转换器的配置，可以提高功率转换器的功率效率。

公开(公告)号：US09478157B2

公开(公告)日：2016-10-25

申请号：US14673685

申请日：2015-03-30

Applicant: Apple Inc.

Inventor： Jiaying Wu ,  Lu Zhang ,  Cheng Chen ,  Gabriel Marcu ,  Chaohao Wang ,  Ming Xu ,  Ricardo Motta ,  Wei Chen ,  John Z. Zhong

IPC: G09G5/00 ,  G09G3/20 ,  G09G5/02 ,  G09G3/34

CPC classification number: G09G3/2003 ,  G09G3/3413 ,  G09G5/02 ,  G09G2320/0242 ,  G09G2320/0261 ,  G09G2320/0666 ,  G09G2360/144 ,  G09G2360/145

Abstract: An electronic device may include a display having an array of display pixels and having display control circuitry that controls the operation of the display. The display control circuitry may adaptively adjust the display output based on ambient lighting conditions. For example, in cooler ambient lighting conditions such as those dominated by daylight, the display may display neutral colors using a relatively cool white. When the display is operated in warmer ambient lighting conditions such as those dominated by indoor light sources, the display may display neutral colors using a relatively warm white. Adapting to the ambient lighting conditions may ensure that the user does not perceive color shifts on the display as the user's vision chromatically adapts to different ambient lighting conditions. Adaptively adjusting images in this way can also have beneficial effects on the human circadian rhythm by displaying warmer colors in the evening.

Abstract translation: 电子设备可以包括具有显示像素阵列并具有控制显示器的操作的显示控制电路的显示器。 显示控制电路可以基于环境照明条件自适应地调整显示输出。 例如，在较冷的环境照明条件下，例如由日光控制的环境照明条件下，显示器可以使用相当冷的白色显示中性色。 当显示器在诸如由室内光源所主导的环境照明条件较暖的环境照明条件下操作时，显示器可以使用相对温暖的白色显示中性色。 适应环境照明条件可以确保用户在视觉色彩适应不同的环境照明条件时不会察觉显示器上的色彩偏移。 以这种方式自适应调整图像也可以通过在晚上显示温暖的颜色对人类昼夜节律有益。