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：US10446116B2

公开(公告)日：2019-10-15

申请号：US15673138

申请日：2017-08-09

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chaohao Wang ,  Cheuk Chi Lo ,  Chun-Yao Huang ,  Howard Tang ,  Paolo Sacchetto

IPC: G09G5/10 ,  G01K13/00 ,  G01K7/34 ,  G09G3/20 ,  G01K1/02 ,  G01K7/01 ,  G01K7/18 ,  G06F3/044 ,  G09G3/36 ,  G09G3/3225 ,  G09G3/34

Abstract: An apparatus is disclosed. In some examples, the apparatus comprises a display panel comprising a plurality of display pixels. In some examples, the apparatus comprises a plurality of temperature sensors disposed at different portions the display panel, wherein the plurality of temperature sensors comprise ratioed pairs of thin film transistors and the ratioed pairs of thin film transistors are formed on the display panel. In some examples, the apparatus comprises control circuitry for changing illumination properties of the plurality of display pixels based on changes is temperature detected by a proximate temperature sensor of the plurality of temperature sensors. In some examples, the ratioed pairs of thin film transistors are operated in a sub-threshold mode.

公开(公告)号：US10395349B1

公开(公告)日：2019-08-27

申请号：US15658169

申请日：2017-07-24

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chaohao Wang ,  Paolo Sacchetto

IPC: G06T1/60 ,  G06T5/00 ,  G02F1/29

Abstract: An electronic device such as a head-mounted display or other display system may have a pair of adjustable focal length lenses. Control circuitry in the head-mounted display may adjust the adjustable focal length lenses so that the adjustable focal length lenses exhibit a series of different focal lengths. A graphics processor may generate undistorted image frames. The adjustable focal length lenses may exhibit a different amount of lens distortion at each focal length. To compensate for these different amounts of lens distortion, a distortion compensation circuit may predistort the undistorted image frames by an appropriate amount for each focal length. The distortion compensation circuit may include mapping and interpolation circuitry and look-up tables that store mapping and interpolation data for each of the focal lengths.

公开(公告)号：US20190180669A1

公开(公告)日：2019-06-13

申请号：US15944470

申请日：2018-04-03

Applicant: Apple Inc.

Inventor： Hung Sheng Lin ,  Paolo Sacchetto ,  Yingying Tang ,  Hyunwoo Nho ,  Sebastian Knitter ,  Chaohao Wang ,  Sheng Zhang

IPC: G09G3/20 ,  G09G3/34 ,  G09G3/36

Abstract: An electronic device that includes processing circuitry configured to generate a frame of image data that has a frame duration is provided. The electronic device includes a display that has a plurality of pixels. Each of the plurality of pixels displays image data from the frame of image data for a pixel emission period that is less than the frame duration. A first pixel of a column of pixels of the plurality of pixels begins displaying the image data from the frame of image data at a first time for a first duration. A second pixel of the column of pixels that is adjacent to the first pixel begins displaying the image data from the frame of image data at a second time for a second duration. The first and second durations are equal to the pixel emission period. The second time begins after the first duration of time.

公开(公告)号：US20190172399A1

公开(公告)日：2019-06-06

申请号：US16323751

申请日：2017-08-14

Applicant: Apple Inc.

Inventor： Cheng Chen ,  Jason C. Sauers ,  Fletcher R. Rothkopf ,  David W. Lum ,  Chun-Yao Huang ,  Enkhamgalan Dorjgotov ,  Graham B. Myhre ,  Bennett S. Wilburn ,  Paolo Sacchetto ,  Shih Chang Chang ,  Wonjae Choi ,  Cheuk Chi Lo

IPC: G09G3/3266 ,  G09G3/3275 ,  G09G3/36

Abstract: An electronic device such as a head-mounted device may have displays. The display may have regions of lower (L) and higher (M, H) resolution to reduce data bandwidth and power consumption for the display while preserving satisfactory image quality. Data lines may be shared by lower and higher resolution portions of a display or different portions of a display with different resolutions may be supplied with different numbers of data lines. Data line length may be varied in transition regions between lower resolution and higher resolution portions of a display to reduce visible discontinuities between the lower and higher resolution portions. The lower and higher resolution portions of the display may be dynamically adjusted using dynamically adjustable gate driver circuitry and dynamically adjustable data line driver circuitry.

公开(公告)号：US10283062B2

公开(公告)日：2019-05-07

申请号：US15767637

申请日：2017-07-17

Applicant: Apple Inc.

Inventor： Jiayi Jin ,  Myung-Je Cho ,  Paolo Sacchetto ,  Weijun Yao

IPC: G09G3/36 ,  G09G3/20

Abstract: A display may have curved edges such as rounded corners. Pixels in the display may be controlled so that the active area of the display has the desired curved edge shape. In order to maximize the apparent smoothness of the curved edge, the display may include circuitry that dims some of the pixels based on their location relative to a spline for the curved edge. The display circuitry may include a multiplication circuit that receives image data as a first input and dimming factors from a gain table as a second input. The image data may include a brightness level for each pixel in the array of pixels. The multiplication circuit may multiply the brightness level for each pixel by its respective dimming factor. This modified image data may then be supplied to the imaging pixels using display driver circuitry.

公开(公告)号：US10276085B2

公开(公告)日：2019-04-30

申请号：US14973517

申请日：2015-12-17

Applicant: Apple Inc.

Inventor： Chaohao Wang ,  Paolo Sacchetto ,  Marc Albrecht ,  Christopher P. Tann ,  Shih-Chyuan Fan Jiang ,  Howard H. Tang ,  James E. C. Brown ,  Zhibing Ge

IPC: G09G3/20

Abstract: This application relates to systems, methods, and apparatus for compensating voltage for pixels of a display panel based on the location of the pixels within the display panel. An amount of voltage compensation is assigned to each pixel or a group of pixels within the display panel in accordance with a calibration of the display panel. During operation of the display panel, pixel data is generated for a location of the display panel, and the pixel data is modified according to the amount of voltage compensation corresponding to the location. By modifying the pixel data in this way, spatial variations in voltage across the display panel can be mitigated in order to reduce the occurrence of certain display artifacts at the display panel.

公开(公告)号：US10248257B2

公开(公告)日：2019-04-02

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 ,  G09G3/36 ,  G09G3/20 ,  G09G3/3208 ,  G06F3/0488 ,  G06F3/0354 ,  G06F1/3234

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.

公开(公告)号：US20190088199A1

公开(公告)日：2019-03-21

申请号：US16132320

申请日：2018-09-14

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chengrui Le ,  Hopil Bae ,  Mahdi Farrokh Baroughi ,  David W. Lum ,  Adam Adjiwibawa ,  Chaohao Wang ,  Paolo Sacchetto ,  Wei H. Yao ,  Enkhamgalan Dorjgotov ,  Michael Slootsky ,  Giovanni Carbone ,  Derek K. Shaeffer ,  Henry C. Jen ,  Shingo Hatanaka ,  Hasan Akyol

IPC: G09G3/3233 ,  G09G3/3258

Abstract: An electronic device includes a display having a reference array that includes a first pixel. The display also includes a first emission power supply coupled to the first pixel. The display further includes an active array having a second pixel. The display also includes a second emission power supply coupled to the second pixel.

公开(公告)号：US20180336863A1

公开(公告)日：2018-11-22

申请号：US15842364

申请日：2017-12-14

Applicant: Apple Inc.

Inventor： Sheng Zhang ,  Chaohao Wang ,  Paolo Sacchetto ,  Yunhui Hou

IPC: G09G3/36

CPC classification number: G09G3/3696 ,  G09G3/3648 ,  G09G3/3655 ,  G09G2300/0426 ,  G09G2320/02 ,  G09G2320/0219 ,  G09G2320/0223 ,  G09G2320/0247 ,  G09G2320/029 ,  G09G2360/145

Abstract: The present disclosure relates to systems and methods of accounting for the kickback voltage in an LCD display. For example, a method may include obtaining, via a processor, a difference between a nominal voltage of a common electrode of a display and a measured voltage of the common electrode. The processor may obtain image data associated with an image to be displayed on the display. The processor may adjust the image data of a pixel of the display based on the difference. The processor may output an image signal indicative of the adjusted image data to a pixel electrode of the pixel.