公开(公告)号：US12136387B2

公开(公告)日：2024-11-05

申请号：US18355342

申请日：2023-07-19

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  Ing-Jye Wang ,  Alex H Pai ,  Alexandre V Gauthier ,  Ardra Singh ,  Arthur L Spence ,  Gihoon Choo ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jenny Hu ,  Graeme M Williams ,  Jongyup Lim ,  Kingsuk Brahma ,  Marc J DeVincentis ,  Peter F Holland ,  Shawn P Hurley

IPC: G09G3/30 ,  G09G3/3208 ,  G09G3/36

Abstract: An electronic device may include processing circuitry configured to generate a first frame of image content and a second frame of image content. The second frame of image content is different from the first frame of image content. The electronic device may also include a display configured to display the first frame of image content at a first refresh rate. In response to receiving the second frame of image content, the electronic device may initially increase the refresh rate before tapering back to the first refresh rate while displaying the second frame of image content.

公开(公告)号：US12131719B2

公开(公告)日：2024-10-29

申请号：US17887222

申请日：2022-08-12

Applicant: Apple Inc.

Inventor： Wanqing Xin ,  Mehmet N Agaoglu ,  Gokhan Avkarogullari ,  Jenny Hu ,  Alexander K Kan ,  Yuhui Li ,  James R Montgomerie ,  Andrey Pokrovskiy ,  Yingying Tang ,  Chaohao Wang

IPC: G09G5/36

CPC classification number: G09G5/363 ,  G09G2340/0435 ,  G09G2370/04 ,  G09G2370/22

Abstract: An electronic device may include a display. Control circuitry may operate the display at different frame rates such as 60 Hz, 80 Hz, and 120 Hz. The control circuitry may determine which frame rate to use based on a speed of animation on the display and based on a type of animation on the display. To mitigate the appearance of judder as the display frame rate changes, the control circuitry may implement techniques such as hysteresis (e.g., windows of tolerance around speed thresholds to ensure that the display frame rate does not change too frequently as a result of noise), speed thresholds that are based on a user perception study, consistent latency between touch input detection and corresponding display output across different frame rates (e.g., using a fixed touch scan rate that is independent of frame duration), and animation-specific speed thresholds for triggering frame rate changes.

公开(公告)号：US12230191B2

公开(公告)日：2025-02-18

申请号：US18076363

申请日：2022-12-06

Applicant: Apple Inc.

Inventor： Wanqing Xin ,  Yang Xu ,  Mohammad Ali Jangda ,  Jenny Hu ,  Koorosh Aflatooni ,  Giovanni Corradini ,  Martin Kocicka ,  Alexey Kornienko ,  Asha G Karvaje ,  Aishwarya Prem Renu ,  Andrew D Pangborn ,  Chaohao Wang ,  Yingying Tang ,  Arthur L Spence ,  Mahesh B Chappalli

IPC: G09G3/32

Abstract: Systems and methods are described herein to control brightness based on image content or other inputs to a display system. A dual-control system may integrate both slow control operations and fast control operations into a cohesive brightness management system. By using both shorter-term (e.g., fast control) and longer-term (e.g., slow control) brightness adjustment operations, the electronic device may quickly respond to high luminance and high brightness situations that may cause burn-in into the display, image artifacts, or other damage. Responding quickly to these high consumption situations may prevent damage or perceivable upset to an ongoing process, among other benefits.

公开(公告)号：US12154480B2

公开(公告)日：2024-11-26

申请号：US18184592

申请日：2023-03-15

Applicant: Apple Inc.

Inventor： Jenny Hu ,  Chaohao Wang ,  Christopher E Glazowski ,  Clint M Perlaki ,  David R Manly ,  Feng Wen ,  Graeme M Williams ,  Hei Kam ,  Hyun H Boo ,  Kevin J Choboter ,  Kyounghwan Kim ,  Lu Yan ,  Mahesh B Chappalli ,  Mark T Winkler ,  Na Zhu ,  Peter F Holland ,  Tong Chen ,  Warren S Rieutort-Louis ,  Wenrui Cai ,  Ximeng Guan ,  Yingying Tang ,  Yuchi Che

IPC: G09G3/3233 ,  G06F3/042 ,  G09G3/20 ,  G09G3/34 ,  G06F3/041

Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. Display artifacts caused by a light emitter that operates through a display may be referred to as emitter artifacts. To mitigate emitter artifacts, operating conditions for a display frame may be used to determine an optimal firing time for the light emitter during that display frame. The operating conditions used to determine the optimal firing time may include emitter operating conditions, display content statistics, display brightness, temperature, and refresh rate. Operating conditions from one or more previous frames may be stored in a frame buffer and may be used to help determine the optimal firing time for the light emitter during a display frame. Pixel values for the display may be modified to mitigate emitter artifacts.

公开(公告)号：US20240363088A1

公开(公告)日：2024-10-31

申请号：US18611276

申请日：2024-03-20

Applicant: Apple Inc.

Inventor： Tong Chen ,  Wenrui Cai ,  Jenny Hu ,  Clint M Perlaki

IPC: G09G5/10

CPC classification number: G09G5/10 ,  G09G2310/08 ,  G09G2360/144 ,  G09G2360/145

Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. To determine whether the light emitter has caused these artifacts, a display light sensor under the display may measure backside light leakage from the display. Based on the measured backside light leakage, the display light sensor or control circuitry may determine whether artifacts in the display exceed a predetermined acceptable artifact range. If the artifacts exceed this range, the artifacts may be mitigated. To mitigate the artifacts, the light emitter and/or the display may be adjusted. For example, the timing and/or dosage of the light emitter, the acceptable artifact range, and/or the timing of display content may be adjusted. In this way, the display light sensor may be used to form a closed-loop system to determine whether artifacts are present in the display and to mitigate those artifacts.

公开(公告)号：US20240203335A1

公开(公告)日：2024-06-20

申请号：US18540613

申请日：2023-12-14

Applicant: Apple Inc.

Inventor： Mario Miscuglio ,  Yang Xu ,  Snehal T. Jariwala ,  Yi Qiao ,  Jean-Pierre S. Guillou ,  Jenny Hu ,  Ming Xu ,  Wanqing Xin ,  Zuo Xia ,  Xin Zheng ,  Jie Won Ryu ,  Graeme M. Williams ,  Kingsuk Brahma

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2320/0233 ,  G09G2320/0686 ,  G09G2330/021 ,  G09G2340/00

Abstract: Systems and methods described herein may utilize a non-linear scaling relationship to scale brightness of selective portions of the display in a manner that reduces or eliminates perceivable banding effects. By non-linearly controlling changes in brightness of the display, a viewer may perceive a more uniform, linear dimming towards the relatively dimmer region without perceiving banding, leading to improved user experience when viewing the electronic display.

公开(公告)号：US20240078961A1

公开(公告)日：2024-03-07

申请号：US18076363

申请日：2022-12-06

Applicant: Apple Inc.

Inventor： Wanqing Xin ,  Yang Xu ,  Mohammad Ali Jangda ,  Jenny Hu ,  Koorosh Aflatooni ,  Giovanni Corradini ,  Martin Kocicka ,  Alexey Kornienko ,  Asha G Karvaje ,  Aishwarya Prem Renu ,  Andrew D Pangborn ,  Chaohao Wang ,  Yingying Tang ,  Arthur L Spence ,  Mahesh B Chappalli

IPC: G09G3/32

CPC classification number: G09G3/32 ,  G09G2310/08 ,  G09G2320/0295 ,  G09G2320/046 ,  G09G2320/0613 ,  G09G2320/0626 ,  G09G2320/103 ,  G09G2330/023 ,  G09G2360/144 ,  G09G2360/16

Abstract: Systems and methods are described herein to control brightness based on image content or other inputs to a display system. A dual-control system may integrate both slow control operations and fast control operations into a cohesive brightness management system. By using both shorter-term (e.g., fast control) and longer-term (e.g., slow control) brightness adjustment operations, the electronic device may quickly respond to high luminance and high brightness situations that may cause burn-in into the display, image artifacts, or other damage. Responding quickly to these high consumption situations may prevent damage or perceivable upset to an ongoing process, among other benefits.

公开(公告)号：US20230410718A1

公开(公告)日：2023-12-21

申请号：US18184592

申请日：2023-03-15

Applicant: Apple Inc.

Inventor： Jenny Hu ,  Chaohao Wang ,  Christopher E Glazowski ,  Clint M Perlaki ,  David R Manly ,  Feng Wen ,  Graeme M Williams ,  Hei Kam ,  Hyun H Boo ,  Kevin J Choboter ,  Kyounghwan Kim ,  Lu Yan ,  Mahesh B Chappalli ,  Mark T Winkler ,  Na Zhu ,  Peter F Holland ,  Tong Chen ,  Warren S Rieutort-Louis ,  Wenrui Cai ,  Ximeng Guan ,  Yingying Tang ,  Yuchi Che

IPC: G09G3/20 ,  G06F3/042

CPC classification number: G09G3/2096 ,  G06F3/042 ,  G09G2360/16 ,  G09G2320/0295 ,  G06F3/0412

Abstract: A light emitter that operates through a display may cause display artifacts, even when the light emitter operates using non-visible wavelengths. Display artifacts caused by a light emitter that operates through a display may be referred to as emitter artifacts. To mitigate emitter artifacts, operating conditions for a display frame may be used to determine an optimal firing time for the light emitter during that display frame. The operating conditions used to determine the optimal firing time may include emitter operating conditions, display content statistics, display brightness, temperature, and refresh rate. Operating conditions from one or more previous frames may be stored in a frame buffer and may be used to help determine the optimal firing time for the light emitter during a display frame. Pixel values for the display may be modified to mitigate emitter artifacts.

公开(公告)号：US20240071295A1

公开(公告)日：2024-02-29

申请号：US18358004

申请日：2023-07-24

Applicant: Apple Inc.

Inventor： Jenny Hu ,  Alexandre V Gauthier ,  Tao Jia ,  Scott R Johnston ,  Yingying Tang ,  Chaohao Wang

IPC: G09G3/32 ,  G09G3/20

CPC classification number: G09G3/32 ,  G09G3/2007 ,  G09G2310/08 ,  G09G2320/0252 ,  G09G2320/0295 ,  G09G2320/045 ,  G09G2340/16 ,  G09G2360/16 ,  G09G2360/18

Abstract: Devices and methods are provided to overdrive or underdrive a display panel to account for display pixel hysteresis due to several frames of pixel history. An electronic device may include an electronic display and processing circuitry. The electronic display includes a number of display pixels. The processing circuitry may generate image data for the display pixels. The processing circuitry may receive a current frame value of the image data targeted for a first display pixel and, based at least in part on the current frame value and a pixel history of the first display pixel—may indicate a gray level for a number of previous frames—generate a compensated value by which to drive the first pixel to overcome pixel hysteresis to reach the desired luminance at an initial response.

公开(公告)号：US12249271B2

公开(公告)日：2025-03-11

申请号：US18358004

申请日：2023-07-24

Applicant: Apple Inc.

Inventor： Jenny Hu ,  Alexandre V Gauthier ,  Tao Jia ,  Scott R Johnston ,  Yingying Tang ,  Chaohao Wang

IPC: G09G3/32 ,  G09G3/20

Abstract: Devices and methods are provided to overdrive or underdrive a display panel to account for display pixel hysteresis due to several frames of pixel history. An electronic device may include an electronic display and processing circuitry. The electronic display includes a number of display pixels. The processing circuitry may generate image data for the display pixels. The processing circuitry may receive a current frame value of the image data targeted for a first display pixel and, based at least in part on the current frame value and a pixel history of the first display pixel—may indicate a gray level for a number of previous frames—generate a compensated value by which to drive the first pixel to overcome pixel hysteresis to reach the desired luminance at an initial response.