公开(公告)号：US20210098520A1

公开(公告)日：2021-04-01

申请号：US17003638

申请日：2020-08-26

Applicant: Apple Inc.

Inventor： Shengchang Cai ,  Enkhamgalan Dorjgotov ,  Chaohao Wang ,  Sheng Zhang ,  Giovanni Carbone ,  Igor Stamenov

IPC: H01L27/146

Abstract: Techniques for implementing and/or operating an electronic device that includes or utilizes a display panel. The display panel includes an organic light-emitting diode layer, an encapsulation layer disposed over the organic light-emitting diode layer, and a color filter layer disposed over the encapsulation layer. The color filter layer overhangs the organic light-emitting diode layer and comprises a first color filter cell of a first color component sub-pixel that at least partially overlaps an organic light-emitting diode of a second color component sub-pixel that is a different color compared to the first color component sub-pixel.

公开(公告)号：US20210097958A1

公开(公告)日：2021-04-01

申请号：US17003730

申请日：2020-08-26

Applicant: Apple Inc.

Inventor： Adria Fores Herranz ,  Chaohao Wang ,  Jun Li ,  Koorosh Aflarooni ,  Pierre-Yves Emellie ,  Sheng Zhang ,  Yingying Tang ,  Yunhui Hou

IPC: G09G5/10

Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive input image data, in a first color space, having luminance values for each of the sub-pixels. The circuitry may also map the input image data from the first color space to a second color space and apply a multi-dimensional lookup table, based on the input image data in the second color space, to generate compensated image data. The lookup table may receive the luminance values for each of the sub-pixels and output corrected luminance values compensated for an expected amount of current leakage between the sub-pixels. The circuitry may also inversely map the compensated image data from the second color space to the first color space to generate the processed image data.

公开(公告)号：US20210097921A1

公开(公告)日：2021-04-01

申请号：US17003757

申请日：2020-08-26

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Sheng Zhang ,  Yingying Tang ,  Yunhui Hou

IPC: G09G3/20

Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive first image data for a sub-pixel of the and second image data for a group of sub-pixels surrounding the sub-pixel. The first image data may include a luminance value for the sub-pixel and the second image data may include luminance values for each sub-pixel of the group. The image processing circuitry may also determine a compensation value, to compensate the luminance value for lateral current leakage between the sub-pixel and the group of sub-pixels, based on the luminance value of the sub-pixel and the luminance values for each sub-pixel of the group of sub-pixels.

公开(公告)号：US20210097911A1

公开(公告)日：2021-04-01

申请号：US17033740

申请日：2020-09-26

Applicant: Apple Inc.

Inventor： Scott R. Johnston ,  Shih-Chyuan Fan Jiang ,  Chaohao Wang

IPC: G09G3/00 ,  G09G3/36 ,  G02F1/1362

Abstract: Liquid crystal display panels and methods of addressing Vcom drift using capacitive measurements as a substitute for direct optical flicker measurements.

公开(公告)号：US20210020140A1

公开(公告)日：2021-01-21

申请号：US16926545

申请日：2020-07-10

Applicant: Apple Inc.

Inventor： Yang Li ,  Yingying Tang ,  Chaohao Wang ,  Wei H. Yao

IPC: G09G5/10

Abstract: An electronic device may be provided with an ambient light sensor, a display that displays image content, and control circuitry. The control circuitry may adjust a peak allowable brightness of the display based on an ambient light brightness and based on the image content being displayed. For example, the control circuitry may analyze frames of display data to determine an average pixel luminance level. Low average pixel luminance levels correspond to mostly dark image content, whereas high average pixel luminance levels correspond to mostly light image content. When an electronic device is outdoors and displaying mostly dark images with low average pixel luminance levels, the control circuitry may take advantage of the display's maximum achievable brightness to improve readability. When an electronic device is outdoors and displaying mostly light images with high average pixel luminance levels, the control circuitry may scale the maximum allowable brightness down to reduce power consumption.

公开(公告)号：US10885852B2

公开(公告)日：2021-01-05

申请号：US16893373

申请日：2020-06-04

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chih-Wei Yeh ,  Yunhui Hou ,  Chaohao Wang ,  Wei H. Yao ,  Paolo Sacchetto ,  Derek K. Shaeffer ,  Henry C. Jen ,  Shingo Hatanaka ,  Hasan Akyol ,  Mahdi Farrokh Baroughi ,  Hopil Bae

IPC: G09G3/3258 ,  G09G3/3233

Abstract: An electronic device includes a display having an active array and a reference array. The active array includes a pixel and the reference array includes a reference pixel. The electronic device also includes processing circuitry communicatively coupled to the display. The processing circuitry is configured to instruct the active array to drive the pixel based at least in part on a set of degradation ratios and gamma tap points for each brightness setting of the display based at least in part on a reconstructed current-voltage curve.

公开(公告)号：US10748340B1

公开(公告)日：2020-08-18

申请号：US15989756

申请日：2018-05-25

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Aleksandr M. Movshovich ,  Arthur Y. Zhang ,  Chaohao Wang ,  Moinul H. Khan ,  Paolo Sacchetto ,  Yunhui Hou

IPC: G06T19/00 ,  G02B27/01 ,  H04N5/232

Abstract: An electronic device may have a camera and a display. The display may be configured to display virtual reality content for a user in which no real-world content from the camera is displayed or mixed reality content in which a combination of real-world content from the camera and overlaid virtual reality content is displayed. Control circuitry in the device may adjust the display and camera while transitioning between virtual reality and mixed reality modes. The control circuitry may reconfigure the camera to exhibit a desired frame rate immediately upon transitioning from virtual reality mode to mixed reality mode. Transitions between modes may be accompanied by smooth transitions between frame rates to avoid visible artifacts on the display. The camera frame rate may be synchronized to the display frame rate for at least part of the transition between the virtual reality and mixed reality modes.

公开(公告)号：US20200098324A1

公开(公告)日：2020-03-26

申请号：US16509406

申请日：2019-07-11

Applicant: Apple Inc.

Inventor： Jun Li ,  Chaohao Wang ,  Hopil Bae ,  Mitchell H. Kline ,  Xiaokai Li

IPC: G09G3/36 ,  G09G3/34 ,  G09G5/14

Abstract: Aspects of the subject technology relate to displays for electronic devices and methods of operating the displays. The display may include an array of display pixels arranged in rows and columns. A v-drive operation in which rows are alternatingly operated about a center of each of two halves of the display is provided. Data rendering operations are provided that generate a virtual frame rate boost.

公开(公告)号：US10559251B2

公开(公告)日：2020-02-11

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

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.

公开(公告)号：US20200005716A1

公开(公告)日：2020-01-02

申请号：US16567972

申请日：2019-09-11

Applicant: Apple Inc.

Inventor： Junhua Tan ,  Kingsuk Brahma ,  Jie Won Ryu ,  Shengkui Gao ,  Shiping Shen ,  Majid Gharghi ,  Hyunwoo Nho ,  Injae Hwang ,  Kavinaath Murugan ,  Sun-Il Chang ,  Chin Wei Lin ,  Hyunsoo Kim ,  Rui Zhang ,  Jesse Aaron Richmond ,  Yun Wang ,  Hung Sheng Lin ,  Alex H. Pai ,  Chaohao Wang ,  Wei H. Yao

IPC: G09G3/3283 ,  G09G3/3291 ,  G09G3/3241 ,  G09G3/3258

Abstract: The present disclosure relates generally to systems and methods that may reduce a reduction in visual artifacts related to hysteresis of a light emitting diode (LED) electronic display. In one example, an electronic device may include a controller. The controller is may provide a signal to a pixel of a display of the electronic device while at least a portion of the display is turned off. The signal may include a first current and a second current. The first current may be designed to increase an ambient temperature corresponding to the pixel. The second current may be generated as part of an active panel conditioning operation. By applying the first current and the second current, hysteresis settling times from the pixel may improve, therefore improving speeds of sensing and compensation operations of the electronic device.