公开(公告)号：US20230077843A1

公开(公告)日：2023-03-16

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

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：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：US12126847B2

公开(公告)日：2024-10-22

申请号：US17899543

申请日：2022-08-30

Applicant: Apple Inc.

Inventor： Yuhui Li ,  Chendi Zhang ,  Andrey Pokrovskiy ,  Wanqing Xin

IPC: H04N21/234 ,  H04N21/24 ,  H04N21/472

CPC classification number: H04N21/23418 ,  H04N21/2408 ,  H04N21/472

Abstract: Aspects of the subject technology relate to providing frame rate arbitration for electronic devices. Frame rate arbitration can include determining a global frame rate based on frame rate parameters from one or more animation sources, and providing the global frame rate to the animation sources. The frame rate parameters for various animations sources can have differing preferred, minimum, and/or maximum frame rates, and the global frame rate may be determined for concurrent display of multiple animations from the multiple animation sources. In one or more implementations, frame rate arbitration can also be performed based on frame rate parameters from an input source.

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.