公开(公告)号：US20220327977A1

公开(公告)日：2022-10-13

申请号：US17680103

申请日：2022-02-24

Applicant: Apple Inc.

Inventor： Kevin W. Sliech ,  Jason N. Gomez ,  David A. Hartley ,  Chengrui Le ,  Paolo Sacchetto ,  Arthur L. Spence

IPC: G09G3/20

Abstract: In an embodiment, an electronic device includes an electronic display. The electronic display provides a programmable latency period in response to receiving a first image frame corresponding to first image frame data. The electronic display also displays the first image frame after the programmable latency period and during display of the first image frame, receives a second image frame corresponding to second image frame data. The electronic display also repeats display of the first image frame in response to receiving the second image frame.

公开(公告)号：US20200335047A1

公开(公告)日：2020-10-22

申请号：US16418748

申请日：2019-05-21

Applicant: Apple Inc.

Inventor： Duane M. Petrovich ,  Sean C. Chang ,  Tobias Jung ,  Pierre-Yves Emelie ,  Marc Albrecht ,  Chen Zheng ,  Andrei E. Toma ,  Kevin W. Sliech ,  Mingxia Gu ,  Wei H. Yao

IPC: G09G3/34 ,  G02F1/1335

Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes. A backlight brightness selection circuit may select brightness values for the light-emitting diodes. The backlight brightness selection circuit may select the brightness values based on image data, based on brightness values used in previous image frames, based on device information, and/or based on sensor information. The backlight brightness selection circuit may select the backlight brightness levels to mitigate visible artifacts such as flickering and halo. The backlight levels selected by the backlight brightness selection may be modified by a power consumption compensation circuit. The power consumption compensation circuit may estimate the amount of power consumption required to operate the backlight using the target brightness levels and may modify the target brightness levels to meet maximum power consumption requirements.

公开(公告)号：US20190050035A1

公开(公告)日：2019-02-14

申请号：US15826314

申请日：2017-11-29

Applicant: Apple Inc.

Inventor： Kevin W. Sliech

IPC: G06F1/26

CPC classification number: G06F1/26

Abstract: Systems and methods are provided for performing an in-system measurement of power consumption without exclusive use of an in-line current-sense resistor. Indeed, these systems and methods may take advantage of existing parasitic resistances in an electronic device—such as resistances that might vary over time and under different operating conditions. To perform an in-system measurement, a digital value of a first voltage caused by an unknown amount of current flowing into a power-consuming component over an unknown resistance may be measured. Before or afterward, a current source may be activated to add or subtract a known amount of current to the unknown amount of current, resulting in a second voltage over the unknown resistance, and a digital value of the second voltage over the unknown resistance may be measured. The power consumption by the power-consuming component can then be calculated from these values.

公开(公告)号：US20250037648A1

公开(公告)日：2025-01-30

申请号：US18784592

申请日：2024-07-25

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Myungjoon Choi ,  Kevin W. Sliech ,  Ju Hyung Nam ,  Hyunwoo Nho ,  Qiuyao Zhu

IPC: G09G3/32

Abstract: Electronic devices and displays are provided for reducing or eliminating image artifacts due to delayed or dropped image frames. Such an electronic display may include an electronic display panel to display an image frame and display driver circuitry (e.g., a timing controller (TCON)). The display driver circuitry may program display pixels of the display panel to display the image frame over a series of subframes having time quanta higher than a maximum frame rate of the electronic display.

公开(公告)号：US11615727B2

公开(公告)日：2023-03-28

申请号：US17680103

申请日：2022-02-24

Applicant: Apple Inc.

Inventor： Kevin W. Sliech ,  Jason N. Gomez ,  David A. Hartley ,  Chengrui Le ,  Paolo Sacchetto ,  Arthur L. Spence

IPC: G09G3/20

Abstract: In an embodiment, an electronic device includes an electronic display. The electronic display provides a programmable latency period in response to receiving a first image frame corresponding to first image frame data. The electronic display also displays the first image frame after the programmable latency period and during display of the first image frame, receives a second image frame corresponding to second image frame data. The electronic display also repeats display of the first image frame in response to receiving the second image frame.

公开(公告)号：US10964275B2

公开(公告)日：2021-03-30

申请号：US16418748

申请日：2019-05-21

Applicant: Apple Inc.

Inventor： Duane M. Petrovich ,  Sean C. Chang ,  Tobias Jung ,  Pierre-Yves Emelie ,  Marc Albrecht ,  Chen Zheng ,  Andrei E. Toma ,  Kevin W. Sliech ,  Mingxia Gu ,  Wei H. Yao

IPC: G09G3/34 ,  G02F1/13357 ,  G02F1/1335

Abstract: A display may have a pixel array such as a liquid crystal pixel array. The pixel array may be illuminated by a backlight unit that includes an array of light-emitting diodes. A backlight brightness selection circuit may select brightness values for the light-emitting diodes. The backlight brightness selection circuit may select the brightness values based on image data, based on brightness values used in previous image frames, based on device information, and/or based on sensor information. The backlight brightness selection circuit may select the backlight brightness levels to mitigate visible artifacts such as flickering and halo. The backlight levels selected by the backlight brightness selection may be modified by a power consumption compensation circuit. The power consumption compensation circuit may estimate the amount of power consumption required to operate the backlight using the target brightness levels and may modify the target brightness levels to meet maximum power consumption requirements.

公开(公告)号：US20200372876A1

公开(公告)日：2020-11-26

申请号：US16781523

申请日：2020-02-04

Applicant: Apple Inc.

Inventor： Kevin W. Sliech ,  Lu Zhang ,  Mingxia Gu ,  Robert L. Ridenour ,  Yanming Li

IPC: G09G5/04 ,  G09G3/34

Abstract: An electronic device includes a display having an emulation component and a separate calibration component. The emulation component may provide a user of the device with a list of available emulation presets at least some of which is common across a large batch of displays. The calibration component may include at least one factory calibration setting that may be shared among one or more of the emulation presets. The user may optionally add to the list of emulation presets by filling up empty emulation slots in the emulation component. The user may also be given the option to recalibrate the display or to add custom calibration datasets using calibration targets different than factory targets. The custom calibration datasets may be optimized for one or more of the emulation presets. Thus, when the user selects a particular emulation preset, the display may automatically select the desired calibration dataset for optimal performance.

公开(公告)号：US10719110B2

公开(公告)日：2020-07-21

申请号：US15826314

申请日：2017-11-29

Applicant: Apple Inc.

Inventor： Kevin W. Sliech

IPC: G06F1/26

Abstract: Systems and methods are provided for performing an in-system measurement of power consumption without exclusive use of an in-line current-sense resistor. Indeed, these systems and methods may take advantage of existing parasitic resistances in an electronic device—such as resistances that might vary over time and under different operating conditions. To perform an in-system measurement, a digital value of a first voltage caused by an unknown amount of current flowing into a power-consuming component over an unknown resistance may be measured. Before or afterward, a current source may be activated to add or subtract a known amount of current to the unknown amount of current, resulting in a second voltage over the unknown resistance, and a digital value of the second voltage over the unknown resistance may be measured. The power consumption by the power-consuming component can then be calculated from these values.