公开(公告)号：US20240038154A1

公开(公告)日：2024-02-01

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: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G2340/0435 ,  G09G2320/0266 ,  G09G2320/0626 ,  G09G2310/08

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：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：US20240203332A1

公开(公告)日：2024-06-20

申请号：US18509592

申请日：2023-11-15

Applicant: Apple Inc.

Inventor： Mario Miscuglio ,  Kingsuk Brahma ,  Jie Won Ryu ,  Shengkui Gao ,  Yuchi Che ,  Graeme M Williams ,  Yi Qiao ,  Wei H Yao ,  Jean-Pierre S Guillou

IPC: G09G3/3208 ,  G09G3/32

CPC classification number: G09G3/3208 ,  G09G3/32 ,  G09G2300/0828 ,  G09G2320/0276

Abstract: In a display characterized by regions with different pixel responses due, for example, to local pixel density variation, voltage-to-luminance matching may be non-universal. Therefore, in order to avoid visual artifacts that may hinder a desired visualization of displayed content, it may be advantageous to compensate the different gamma responses. In some cases, such as with electronic devices having a single pixel density across the display, optical calibration may be performed to determine voltage-to-luminance matching. However, in electronic devices with local pixel density variations, it may be disadvantageous to perform optical calibrations for each region with a different pixel density. Instead of using two distinct gamma curves which may include dedicated optical calibration, a global nonlinear scaler (GNLS) compensation may be applied. Embodiments may pertain to techniques for applying a per-channel and band-global gamma-to-voltage compensation to reduce or minimize a relative luminance error amongst different responses of display regions.

公开(公告)号：US12288522B1

公开(公告)日：2025-04-29

申请号：US18350621

申请日：2023-07-11

Applicant: Apple Inc.

Inventor： Shyuan Yang ,  Salman Kabir ,  Ricardo A Peterson ,  Warren S Rieutort-Louis ,  Ting-Kuo Chang ,  Qing Li ,  Yuchi Che ,  Tsung-Ting Tsai ,  Feng Wen ,  Abbas Jamshidi Roudbari ,  Kyounghwan Kim ,  Graeme M Williams ,  Kingsuk Brahma ,  Yue Jack Chu ,  Junbo Wu ,  Chieh-Wei Chen ,  Bo-Ren Wang ,  Injae Hwang ,  Wenbing Hu

IPC: G09G3/3258

Abstract: An electronic device includes a display and a sensor underneath the display. The display has a full pixel density region and a reduced pixel density region. Compared to pixels in the full pixel density region, pixels in the reduced pixel density region can be controlled using overdriven power supply voltages, overdriven scan control signals, different initialization and reset voltages, and can include capacitors and transistors with different physical and electrical characteristics. Gate drivers provide scan signals to pixels in the full pixel density region, whereas overdrive buffers provide overdrive scan signals to pixels in the reduced pixel density region. The pixels in the full pixel density region and the pixels in the reduced pixel density region can be controlled using different black level or gamma settings for each color channel and can be adjusted physically to match luminance, color, as well as to mitigate differences in temperature and aging impact.

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：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：US11810494B2

公开(公告)日：2023-11-07

申请号：US17820190

申请日：2022-08-16

Applicant: Apple Inc.

Inventor： Jie Won Ryu ,  ByoungSuk Kim ,  David S Zalatimo ,  Graeme M Williams ,  Hyunsoo Kim ,  Hyunwoo Nho ,  Jesse R Manders ,  Kingsuk Brahma ,  Li-Xuan Chuo ,  Sachiko Oda ,  Shatam Agarwal ,  Yao Shi

IPC: G09G3/20 ,  H03M1/10

CPC classification number: G09G3/2044 ,  H03M1/1019 ,  G09G2310/027 ,  G09G2320/0276

Abstract: An electronic device may include an electronic display having multiple display pixels to display an image based on analog voltage signals. The electronic device may also include optical calibration circuitry to generate digital-to-analog converter (DAC) data based on image data associated with the image and dither circuitry to reduce a bit-depth of the DAC data, generating dithered DAC data. Additionally, the electronic device may include a gamma generator having one or more DACs to generate the analog voltage signals based on the dithered DAC data, which may instruct the gamma generator to generate the analog voltage signals indicative of the image data.