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公开(公告)号：US20210407378A1
公开(公告)日：2021-12-30
申请号：US16755666
申请日：2019-10-25
发明人： Guofeng Hu , Zhenkun Song , Ming Chen , Lingyun Shi , Yuxin Bi , Xin Duan , Yankai Gao , Hong Liu , Mingjian Yu
摘要： A pixel driving circuit for a light-emission-device-based display panel is provided, including a driving transistor coupled to a light-emission device per subpixel; a digital-driving circuit having a first input terminal configured to receive a pixel voltage signal corresponding to a grayscale level of a subpixel image to be displayed and a first output terminal coupled to a gate terminal of the driving transistor. The digital-driving circuit is configured to convert the pixel voltage signal to a digital signal and transform the digital signal to a pulse-width-modulation (PWM) signal outputted via the first output terminal to the gate terminal of the driving transistor. The PWM signal comprises a pulse width proportional to the grayscale level as a duty cycle m a period of driving the light-emitting device to display subpixel image.
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公开(公告)号：US11289009B2
公开(公告)日：2022-03-29
申请号：US16755666
申请日：2019-10-25
发明人： Guofeng Hu , Zhenkun Song , Ming Chen , Lingyun Shi , Yuxin Bi , Xin Duan , Yankai Gao , Hong Liu , Mingjian Yu
摘要： A pixel driving circuit for a light-emission-device-based display panel is provided, including a driving transistor coupled to a light-emission device per subpixel; a digital-driving circuit having a first input terminal configured to receive a pixel voltage signal corresponding to a grayscale level of a subpixel image to be displayed and a first output terminal coupled to a gate terminal of the driving transistor. The digital-driving circuit is configured to convert the pixel voltage signal to a digital signal and transform the digital signal to a pulse-width-modulation (PWM) signal outputted via the first output terminal to the gate terminal of the driving transistor. The PWM signal comprises a pulse width proportional to the grayscale level as a duty cycle in a period of driving the light-emitting device to display subpixel image.
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公开(公告)号：US11289035B2
公开(公告)日：2022-03-29
申请号：US16915755
申请日：2020-06-29
发明人： Zhihua Ji , Tiankuo Shi , Zhenkun Song , Xiaomang Zhang , Hsinchung Lo , Chingwen Kung , Lingyun Shi , Xin Duan , Yue Li , Yifan Hou
摘要： A method for obtaining a backlight intensity may improving data processing speed of a display device. The method includes: dividing image data into N sets of data; calculating a backlight intensity of each backlight block according to a corresponding set of data; for each group of pixels, calculating a backlight intensity corresponding to a first pixel according to a backlight intensity of each effective backlight block corresponding to the first pixel and a backlight diffusion weight of the effective backlight block corresponding to the first pixel; calculating backlight intensities corresponding to second to Mth pixels in the Tth group of pixels according to the backlight intensities corresponding to first pixels in the Tth group of pixels and a (T+1)th group of pixels; and for a Nth group of pixels, setting the backlight intensity corresponding to the first pixel as backlight intensities corresponding to second to Mth pixels.
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4.发明申请公开(公告)号：US20190147597A1
公开(公告)日：2019-05-16
申请号：US15925497
申请日：2018-03-19
发明人： Zhenkun Song , Quan Yang , Hongzhen Xue
摘要： Embodiments of the present disclosure provide a maximum connected domain marking method, a target tracking method and an AR (Augmented Reality)/VR (Virtual Reality) apparatus, and relate to the field of image processing technology, and can obtain the maximum connected domain. A maximum connected domain marking method comprises: marking connected domains of pixels of a binary image and recording equivalent relationships; merging the equivalent connected domains according to the equivalent relationships, for pixels with the equivalent relationships in the marked results; counting the number of pixels in each merged connected domain; determining a connected domain label for the maximum connected domain according to the counted number of pixels in each connected domain; and determining coordinates of boundary pixels in the maximum connected domain based on the connected domain label.
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公开(公告)号：US11200830B2
公开(公告)日：2021-12-14
申请号：US16838117
申请日：2020-04-02
发明人： Gaoming Sun , Hsinchung Lo , Xiaomang Zhang , Ching wen Kong , Yuxin Bi , Yang Gao , Zhenkun Song , Fuyin Wang
摘要： The present disclosure provides a method and apparatus for driving a display panel, and a display device. The method includes: upon driving an ith row of sub-pixels, scanning a gate line connected to a jth row of sub-pixels, and determining a reference grayscale of each of the jth row of sub-pixels in each candidate connection mode, wherein a plurality of data lines have a plurality of candidate connection modes; determining a target connection mode that minimizes a grayscale variation degree of the jth row of sub-pixels from the plurality of candidate connection modes; connecting the plurality of data lines according to the target connection mode; and disconnecting the plurality of data lines before driving the jth row of sub-pixels through the plurality of data lines.
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公开(公告)号：US10825184B2
公开(公告)日：2020-11-03
申请号：US15925497
申请日：2018-03-19
发明人： Zhenkun Song , Quan Yang , Hongzhen Xue
摘要： Embodiments of the present disclosure provide a maximum connected domain marking method, a target tracking method and an AR (Augmented Reality)/VR (Virtual Reality) apparatus, and relate to the field of image processing technology, and can obtain the maximum connected domain. A maximum connected domain marking method comprises: marking connected domains of pixels of a binary image and recording equivalent relationships; merging the equivalent connected domains according to the equivalent relationships, for pixels with the equivalent relationships in the marked results; counting the number of pixels in each merged connected domain; determining a connected domain label for the maximum connected domain according to the counted number of pixels in each connected domain; and determining coordinates of boundary pixels in the maximum connected domain based on the connected domain label.
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公开(公告)号：US20210097926A1
公开(公告)日：2021-04-01
申请号：US16838117
申请日：2020-04-02
发明人： Gaoming Sun , Hsinchung Lo , Xiaomang Zhang , Ching wen Kong , Yuxin Bi , Yang Gao , Zhenkun Song , Fuyin Wang
IPC分类号： G09G3/20
摘要： The present disclosure provides a method and apparatus for driving a display panel, and a display device. The method includes: upon driving an ith row of sub-pixels, scanning a gate line connected to a jth row of sub-pixels, and determining a reference grayscale of each of the jth row of sub-pixels in each candidate connection mode, wherein a plurality of data lines have a plurality of candidate connection modes; determining a target connection mode that minimizes a grayscale variation degree of the jth row of sub-pixels from the plurality of candidate connection modes; connecting the plurality of data lines according to the target connection mode; and disconnecting the plurality of data lines before driving the jth row of sub-pixels through the plurality of data lines.
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公开(公告)号：US10922535B2
公开(公告)日：2021-02-16
申请号：US16203915
申请日：2018-11-29
发明人： Zhenkun Song
摘要： The present disclosure provides a method and a device for identifying a wrist, a method for identifying a gesture, electronic equipment and a computer-readable storage medium. The method includes: obtaining a first image, the first image including a hand and the wrist; binarizing the first image to obtain a binary image; extracting a partial image from the binary image, where the partial image is obtained by removing at least of finger information from the binary image; identifying a principal direction of the binary image based on the partial image, and determining a target direction perpendicular to the principal direction; and determining a target position in the binary image where the binary image matches a first wrist feature as a wrist position in the binary image according to the target direction.
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