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公开(公告)号：US20210027751A1
公开(公告)日：2021-01-28
申请号：US16928859
申请日：2020-07-14
Applicant: Apple Inc.
Inventor： Yingying Tang , Chaohao Wang , Wei H. Yao , Christopher E. Glazowski , Woo Shik Jung , Scott R. Johnston
Abstract: Techniques for implementing and/or operating an electronic device that includes a display panel, which displays an image and includes a first panel section implemented with a lower pixel resolution and a second panel section implemented with a higher pixel resolution, an optical sensor disposed behind the first panel section of the display panel, and image processing circuitry communicatively coupled to the display panel. The image processing circuitry receives source image data corresponding with the image, in which the source image data is indicative of target luminance of a display pixel, determines a pixel resolution surrounding the display pixel, processes the source image based at least in part on the pixel resolution surrounding the display pixel to facilitate determining display image data corresponding with the display pixel, and outputs the display image data to enable the display panel to display the image based on the display image data.
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公开(公告)号：US10706817B2
公开(公告)日：2020-07-07
申请号：US16146910
申请日：2018-09-28
Applicant: Apple Inc.
Inventor： Yingying Tang , Chaohao Wang , Sheng Zhang , Yunhui Hou , Paolo Sacchetto , Koorosh Aflatooni , Gokhan Avkarogullari , Guy Cote , Mahesh B. Chappalli , Peter F. Holland
IPC: G09G5/10 , G09G3/20 , G09G3/3225 , G09G3/36 , G09G3/3208
Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
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公开(公告)号：US10665157B2
公开(公告)日：2020-05-26
申请号：US16374606
申请日：2019-04-03
Applicant: Apple Inc.
Inventor： Hung Sheng Lin , Shengkui Gao , Yingying Tang , Sean C. Chang , Mohammad B. Vahid Far , Kasra M. Omid-Zohoor , Chumin Zhao , Jingyu Huang , Mohammad Ali Jangda , Hyunwoo Nho , Chaohao Wang , Marc J. DeVincentis , Marc Albrecht , Warren S. Rieutort-Louis
IPC: G09G3/3208 , G09G3/20
Abstract: Systems and methods reduce likelihood of hysteresis that reduces perceived image quality of a subsequent image frame by toggling the display pixels to relax the display pixels by overwriting previous image frame data. During non-emission periods of the pixels, the pixels may be pre-toggled or exercised to improve response time and accuracy of the pixel. Data for pixels being programmed may also be used to pre-toggle other pixels reducing overhead but increasing cross-talk. Since the amount of cross-talk is related to content of the pixels being pre-toggled, a line buffer may be used to store image data for the pixels being pre-toggled. This stored image data may be used to determine how much pre-compensation is to be applied to data for the pixels being programmed. In other words, an amount of compensation applied is based at least in part on the content (e.g., greyscale levels) of the image data.
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公开(公告)号：US10657874B2
公开(公告)日：2020-05-19
申请号：US15967892
申请日：2018-05-01
Applicant: Apple Inc.
Inventor： Yingying Tang , Chaohao Wang , Sheng Zhang , Yunhui Hou , Paolo Sacchetto , Koorosh Aflatooni , Gokhan Avkarogullari , Guy Cote , Mahesh B. Chappalli , Peter F. Holland
IPC: G09G3/20 , G09G5/06 , G09G3/36 , G09G3/3208
Abstract: An electronic device is provided. The electronic device includes a display that is configured to show content that includes a plurality of frames. The plurality of frames includes a first frame that is associated with a pre-transition value. The plurality of frames also includes a second frame that is associated with a current frame value that corresponds to a first luminance. Additionally, the electronic device is configured to determine an overdriven current frame value corresponding to a second luminance that is greater than the first luminance. The electronic device is also configured to display the second frame using the overdriven current frame value.
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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
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.
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Patent Agency Ranking
公开(公告)号：US11823620B1
公开(公告)日：2023-11-21
申请号：US17368548
申请日：2021-07-06
Applicant: Apple Inc.
Inventor： Lingtao Wang , Yingying Tang , Scott R. Johnston , Chaohao Wang , Sheng Zhang , Woo Shik Jung
IPC: G09G3/3225
CPC classification number: G09G3/3225 , G09G2300/0443 , G09G2320/0233 , G09G2320/0673 , G09G2360/144
Abstract: An electronic device may include a display and an optical sensor formed underneath the display. The electronic device may include a plurality of transparent windows that overlap the optical sensor. The resolution of the display panel may be reduced in some areas due to the presence of the transparent windows. To prevent a visible border between the reduced resolution areas of the display and full resolution areas of the display, uniformity compensation circuitry may be used to compensate pixel data. The uniformity compensation circuitry may output compensated pixel data for the display using one or more compensation maps that include compensation factors associated with pixel locations. The uniformity compensation circuitry may also use region-specific gamma look-up tables to apply different gamma curves to pixels in different regions of the display. The uniformity compensation circuitry may also be used to form a transition region between different regions of the display.
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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.
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公开(公告)号：US11217211B2
公开(公告)日：2022-01-04
申请号：US16928859
申请日：2020-07-14
Applicant: Apple Inc.
Inventor： Yingying Tang , Chaohao Wang , Wei H. Yao , Christopher E. Glazowski , Woo Shik Jung , Scott R. Johnston
Abstract: Techniques for implementing and/or operating an electronic device that includes a display panel, which displays an image and includes a first panel section implemented with a lower pixel resolution and a second panel section implemented with a higher pixel resolution, an optical sensor disposed behind the first panel section of the display panel, and image processing circuitry communicatively coupled to the display panel. The image processing circuitry receives source image data corresponding with the image, in which the source image data is indicative of target luminance of a display pixel, determines a pixel resolution surrounding the display pixel, processes the source image based at least in part on the pixel resolution surrounding the display pixel to facilitate determining display image data corresponding with the display pixel, and outputs the display image data to enable the display panel to display the image based on the display image data.
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公开(公告)号：US20210097958A1
公开(公告)日：2021-04-01
申请号：US17003730
申请日：2020-08-26
Applicant: Apple Inc.
Inventor： Adria Fores Herranz , Chaohao Wang , Jun Li , Koorosh Aflarooni , Pierre-Yves Emellie , Sheng Zhang , Yingying Tang , Yunhui Hou
IPC: G09G5/10
Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive input image data, in a first color space, having luminance values for each of the sub-pixels. The circuitry may also map the input image data from the first color space to a second color space and apply a multi-dimensional lookup table, based on the input image data in the second color space, to generate compensated image data. The lookup table may receive the luminance values for each of the sub-pixels and output corrected luminance values compensated for an expected amount of current leakage between the sub-pixels. The circuitry may also inversely map the compensated image data from the second color space to the first color space to generate the processed image data.
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公开(公告)号：US20210097921A1
公开(公告)日：2021-04-01
申请号：US17003757
申请日：2020-08-26
Applicant: Apple Inc.
Inventor： Chaohao Wang , Sheng Zhang , Yingying Tang , Yunhui Hou
IPC: G09G3/20
Abstract: An electronic device may include an electronic display having multiple pixels to display an image based on processed image data. Each of the pixels may include multiple sub-pixels. The electronic device may also include image processing circuitry to receive first image data for a sub-pixel of the and second image data for a group of sub-pixels surrounding the sub-pixel. The first image data may include a luminance value for the sub-pixel and the second image data may include luminance values for each sub-pixel of the group. The image processing circuitry may also determine a compensation value, to compensate the luminance value for lateral current leakage between the sub-pixel and the group of sub-pixels, based on the luminance value of the sub-pixel and the luminance values for each sub-pixel of the group of sub-pixels.
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