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公开(公告)号：US11978385B2
公开(公告)日：2024-05-07
申请号：US17889242
申请日：2022-08-16
Applicant: Apple Inc.
Inventor： Yao Shi , Wei H Yao , Hyunwoo Nho , Jie Won Ryu , Kingsuk Brahma , Li-Xuan Chuo , Hyunsoo Kim , Myungjoon Choi , Ce Zhang , Alex H Pai , Shengkui Gao , Rungrot Kitsomboonloha , Shatam Agarwal , Vehbi Calayir , Chaohao Wang , Steven N Hanna , Pei-En Chang
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G3/2007 , G09G2310/0291 , G09G2320/0223 , G09G2320/0233 , G09G2330/021 , G09G2360/16
Abstract: This disclosure provides various techniques for providing fine-grain digital and analog pixel compensation to account for voltage error across an electronic display. By employing a two-dimensional digital compensation and a local analog compensation, a fine-grain and robust pixel compensation scheme may be provided to the electronic display.
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公开(公告)号：US11756481B2
公开(公告)日：2023-09-12
申请号：US17469816
申请日：2021-09-08
Applicant: Apple Inc.
Inventor： Hyunsoo Kim , Kingsuk Brahma , Myungjoon Choi , Yue Jack Chu , Li-Xuan Chuo , Hassan Edrees , Chin-Wei Lin , Hyunwoo Nho , Shinya Ono , Alex H. Pai , Jie Won Ryu , Yao Shi , Chaohao Wang
IPC: G09G3/3233 , G09G3/3266
CPC classification number: G09G3/3233 , G09G3/3266 , G09G2300/0819 , G09G2300/0842 , G09G2320/0247 , G09G2320/041 , G09G2320/0626 , G09G2360/12
Abstract: Systems, methods, and devices are provided for mitigating visual artifacts by dynamically tuning bias voltages applied to display pixels. An electronic display may include a display pixel and a bias voltage supply. The bias voltage supply may supply a first bias voltage to the display pixel for a first subframe of a frame of image data. The bias voltage supply may supply a different second bias voltage to the display pixel for a second subframe of the frame of image data. This may mitigate certain image artifacts, such as flicker or variable refresh rate luminance difference, that could arise due to display pixel hysteresis that varies across subframes of the image frame.
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公开(公告)号：US20220076627A1
公开(公告)日：2022-03-10
申请号：US17469816
申请日：2021-09-08
Applicant: Apple Inc.
Inventor： Hyunsoo Kim , Kingsuk Brahma , Myungjoon Choi , Yue Jack Chu , Li-Xuan Chuo , Hassan Edrees , Chin-Wei Lin , Hyunwoo Nho , Shinya Ono , Alex H. Pai , Jie Won Ryu , Yao Shi , Chaohao Wang
IPC: G09G3/3233
Abstract: Systems, methods, and devices are provided for mitigating visual artifacts by dynamically tuning bias voltages applied to display pixels. An electronic display may include a display pixel and a bias voltage supply. The bias voltage supply may supply a first bias voltage to the display pixel for a first subframe of a frame of image data. The bias voltage supply may supply a different second bias voltage to the display pixel for a second subframe of the frame of image data. This may mitigate certain image artifacts, such as flicker or variable refresh rate luminance difference, that could arise due to display pixel hysteresis that varies across subframes of the image frame.
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Patent Agency Ranking
公开(公告)号：US20230089942A1
公开(公告)日：2023-03-23
申请号：US17889242
申请日：2022-08-16
Applicant: Apple Inc.
Inventor： Yao Shi , Wei H Yao , Hyunwoo Nho , Jie Won Ryu , Kingsuk Brahma , Li-Xuan Chuo , Hyunsoo Kim , Myungjoon Choi , Ce Zhang , Alex H Pai , Shengkui Gao , Rungrot Kitsomboonloha , Shatam Agarwal , Vehbi Calayir , Chaohao Wang , Steven N Hanna , Pei-En Chang
IPC: G09G3/20
Abstract: This disclosure provides various techniques for providing fine-grain digital and analog pixel compensation to account for voltage error across an electronic display. By employing a two-dimensional digital compensation and a local analog compensation, a fine-grain and robust pixel compensation scheme may be provided to the electronic display.
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公开(公告)号：US20210118349A1
公开(公告)日：2021-04-22
申请号：US17016282
申请日：2020-09-09
Applicant: Apple Inc.
Inventor： Myungjoon Choi , Kingsuk Brahma , Li-Xuan Chuo , Mohammad Ali Jangda , Hyunsoo Kim , Hyunwoo Nho , Alex H. Pai , Jesse Aaron Richmond , Jie Won Ryu , Shiping Shen , Chaohao Wang
Abstract: An electronic display may include pixel circuitry to display an image based on image data compensated for voltage variations within the pixel circuitry. Image processing circuitry may generate a compensation value to compensate the image data for cross-talk (e.g., electromagnetic coupling between an electrode of touch sensor circuitry and an electrode of the pixel circuitry) that may cause the voltage variations. Additionally or alternatively, the image processing circuitry may generate another compensation value to compensate the image data for another cross-talk (e.g., electromagnetic coupling between two electrodes of the pixel circuitry). The image processing circuitry may generate the compensated image data based on the first compensation value and/or the second compensation value.
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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
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.
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公开(公告)号：US20230087480A1
公开(公告)日：2023-03-23
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
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.
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公开(公告)号：US11205363B2
公开(公告)日：2021-12-21
申请号：US17016282
申请日：2020-09-09
Applicant: Apple Inc.
Inventor： Myungjoon Choi , Kingsuk Brahma , Li-Xuan Chuo , Mohammad Ali Jangda , Hyunsoo Kim , Hyunwoo Nho , Alex H. Pai , Jesse Aaron Richmond , Jie Won Ryu , Shiping Shen , Chaohao Wang
Abstract: An electronic display may include pixel circuitry to display an image based on image data compensated for voltage variations within the pixel circuitry. Image processing circuitry may generate a compensation value to compensate the image data for cross-talk (e.g., electromagnetic coupling between an electrode of touch sensor circuitry and an electrode of the pixel circuitry) that may cause the voltage variations. Additionally or alternatively, the image processing circuitry may generate another compensation value to compensate the image data for another cross-talk (e.g., electromagnetic coupling between two electrodes of the pixel circuitry). The image processing circuitry may generate the compensated image data based on the first compensation value and/or the second compensation value.
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