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公开(公告)号：US12008969B2
公开(公告)日：2024-06-11
申请号：US17958835
申请日：2022-10-03
发明人： Kangjoo Kim , Sugyeung Kang , Yongsik Kwak , Yongil Kwon , Sunkwon Kim , Uijong Song , Sewoong Ahn
IPC分类号： G09G3/34
CPC分类号： G09G3/3426 , G09G2310/0286 , G09G2310/0294 , G09G2320/0233
摘要： A backlight system includes a backlight and a master driving circuit. The backlight includes a plurality of slave driving circuits and a plurality of light sources driven by the plurality of slave driving circuits, wherein the plurality of slave driving circuits are arranged in a matrix of driving rows and driving columns such that first through m-th slave driving circuits, where m is a positive integer greater than one, are arranged in each driving row of the driving rows, and the first through m-th slave driving circuits are connected in a daisy chain structure. The master driving circuit is configured to generate a plurality of input data signals, wherein each input data signal of the plurality of input data signals corresponds to the each driving row, and the each input data signal includes first through m-th packets including luminance data corresponding to the first through m-th slave driving circuits.
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公开(公告)号：US11900865B2
公开(公告)日：2024-02-13
申请号：US18056406
申请日：2022-11-17
发明人： Yongsik Kwak , Sunkwon Kim , Yongil Kwon , Uijong Song , Moonsuk Jeong , Youngkil Choi
CPC分类号： G09G3/32 , G09G3/2007 , G09G2300/0828 , G09G2300/0852 , G09G2310/0291 , G09G2330/021
摘要： A light-emitting diode (LED) driving circuit for driving an LED channel including a plurality of LED elements includes a switch-capacitor amplifier circuit configured to sample received input current and amplify an input voltage corresponding to the input current, a replica circuit configured to connect to the switch-capacitor amplifier circuit in a first period to define a first feedback loop, and an output circuit configured to connect to the switch-capacitor amplifier in a second period to define a second feedback loop. The second period is after the first period, and the output circuit is configured to generate output current according to an output voltage of the switch-capacitor amplifier circuit and provide the output current to the LED.
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公开(公告)号：US11715399B2
公开(公告)日：2023-08-01
申请号：US17701065
申请日：2022-03-22
发明人： Yilho Lee , Yongil Kwon , Sugyeung Kang , Tae-Hyeon Kwon , Sunkwon Kim , Hyunsang Park , Uijong Song
CPC分类号： G09G3/006 , G09G3/32 , G09G2330/12
摘要： Disclosed is integrated circuit panel which detects fault of a driving circuit. The integrated circuit panel includes: a driving circuit array including first and second driving circuits; a data driver configured to output first and second input data signals through first and second data lines, respectively; a switch driver configured to output a switching signal through a switch line; and an error detection driver configured to receive first and second output data signals through first and second test lines, respectively, wherein, in response to the switching signal, the first and second driving circuits are configured to output the first and second output data signals, which are based on the first and second input data signal, through the first and second test lines, respectively, and the error detection driver is configured to detect a fault of the first or second driving circuit based on the first or second output data signal.
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公开(公告)号：US20220114975A1
公开(公告)日：2022-04-14
申请号：US17373092
申请日：2021-07-12
发明人： Kangjoo KIM , Sugyeung Kang , Yongsik Kwak , Yongil Kwon , Sunkwon Kim , Uijong Song , Sewoong Ahn
IPC分类号： G09G3/34
摘要： A backlight system includes a backlight and a master driving circuit. The backlight includes a plurality of slave driving circuits and a plurality of light sources driven by the plurality of slave driving circuits, wherein the plurality of slave driving circuits are arranged in a matrix of driving rows and driving columns such that first through m-th slave driving circuits, where m is a positive integer greater than one, are arranged in each driving row of the driving rows, and the first through m-th slave driving circuits are connected in a daisy chain structure. The master driving circuit is configured to generate a plurality of input data signals, wherein each input data signal of the plurality of input data signals corresponds to the each driving row, and the each input data signal includes first through m-th packets including luminance data corresponding to the first through m-th slave driving circuits
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公开(公告)号：US12033551B2
公开(公告)日：2024-07-09
申请号：US18212981
申请日：2023-06-22
发明人： Yilho Lee , Yongil Kwon , Sugyeung Kang , Tae-Hyeon Kwon , Sunkwon Kim , Hyunsang Park , Uijong Song
CPC分类号： G09G3/006 , G09G3/32 , G09G2330/12
摘要： Disclosed is integrated circuit panel which detects fault of a driving circuit. The integrated circuit panel includes: a driving circuit array including first and second driving circuits; a data driver configured to output first and second input data signals through first and second data lines, respectively; a switch driver configured to output a switching signal through a switch line; and an error detection driver configured to receive first and second output data signals through first and second test lines, respectively, wherein, in response to the switching signal, the first and second driving circuits are configured to output the first and second output data signals, which are based on the first and second input data signal, through the first and second test lines, respectively, and the error detection driver is configured to detect a fault of the first or second driving circuit based on the first or second output data signal.
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公开(公告)号：US11488548B2
公开(公告)日：2022-11-01
申请号：US17373092
申请日：2021-07-12
发明人： Kangjoo Kim , Sugyeung Kang , Yongsik Kwak , Yongil Kwon , Sunkwon Kim , Uijong Song , Sewoong Ahn
IPC分类号： G09G3/34
摘要： A backlight system includes a backlight and a master driving circuit. The backlight includes a plurality of slave driving circuits and a plurality of light sources driven by the plurality of slave driving circuits, wherein the plurality of slave driving circuits are arranged in a matrix of driving rows and driving columns such that first through m-th slave driving circuits, where m is a positive integer greater than one, are arranged in each driving row of the driving rows, and the first through m-th slave driving circuits are connected in a daisy chain structure. The master driving circuit is configured to generate a plurality of input data signals, wherein each input data signal of the plurality of input data signals corresponds to the each driving row, and the each input data signal includes first through m-th packets including luminance data corresponding to the first through m-th slave driving circuits.
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