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公开(公告)号：US12223905B2
公开(公告)日：2025-02-11
申请号：US18590365
申请日：2024-02-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Uijong Song , Sunkwon Kim , Hyungjoong Kim , Seongyoung Ryu , Yilho Lee , Heejin Lee
IPC: G09G3/3233 , G09G3/3266 , G09G3/3275 , H10K59/131
Abstract: A display apparatus includes plural pixels, a scan driver, a data driver, and a read-out circuit that reads out an electrical characteristic of each of the pixels. Each of the pixels includes a first transistor, a second transistor, a third transistor, a fourth transistor including a first electrode connected with a power node, a second electrode connected with a first node, and a gate connected with a first emission control line, a fifth transistor including a first electrode connected with a third node, a second electrode, and a gate connected with a second emission control line, a sixth transistor including a first electrode connected with a read-out line, a second electrode connected with the third node, and a gate connected a the read-out/initialization control line, a capacitor connected between the first node and the second node, and an organic light-emitting diode.
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公开(公告)号：US20250006137A1
公开(公告)日：2025-01-02
申请号：US18741906
申请日：2024-06-13
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Heejin Lee , Minsung Kim , Sunkwon Kim , Seongyoung Ryu , Uijong Song , Yilho Lee , Yunrae Jo
IPC: G09G3/3275 , G09G3/00
Abstract: A display driving circuit includes a control logic, a source amplifier, and first and second switching elements. The source amplifier includes a first input terminal, a second input terminal, and an output terminal, and amplifies a pixel voltage for displaying an image on a display panel and provides the amplified pixel voltage to a pixel through a data line. The first switching element is connected between the first input terminal and the output terminal, and the second switching element is connected between the first input terminal and the sensing line. The control logic controls the first switching element and the second switching element such that the source amplifier compares a sample voltage that is input to the first input terminal through a sensing line with a comparison voltage input to the second input terminal and outputs comparison data based on the comparison.
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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
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kangjoo Kim , Sugyeung Kang , Yongsik Kwak , Yongil Kwon , Sunkwon Kim , Uijong Song , Sewoong Ahn
IPC: G09G3/34
CPC classification number: G09G3/3426 , G09G2310/0286 , G09G2310/0294 , G09G2320/0233
Abstract: 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
Applicant: Samsung Electronics Co., Ltd.
Inventor： Yongsik Kwak , Sunkwon Kim , Yongil Kwon , Uijong Song , Moonsuk Jeong , Youngkil Choi
CPC classification number: G09G3/32 , G09G3/2007 , G09G2300/0828 , G09G2300/0852 , G09G2310/0291 , G09G2330/021
Abstract: 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：US12288495B2
公开(公告)日：2025-04-29
申请号：US18238885
申请日：2023-08-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Seong-Young Ryu , Sunkwon Kim , Wangsuk Sung , Uijong Song , Yilho Lee , Heejin Lee , Hyunwook Lim
IPC: G09G3/20
Abstract: A display device is provided. The display device includes: a pixel array including pixels connected to gate lines and source lines; and a driving circuit configured to: apply gate signals to the gate lines and provide data signals to the source lines during a first scan period such that horizontal periods of the gate signals do not overlap each other, and apply the gate signals to first gate lines, of the gate lines, connected to pixels in a first area of the pixel array in a different manner from second gate lines, of the gate lines, connected to pixels in a second area of the pixel array for a portion of a second scan period, provide the data signals to the source lines, and maintain a low-biased state or an off state for a remaining portion of the second scan period.
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Patent Agency Ranking
公开(公告)号：US11715399B2
公开(公告)日：2023-08-01
申请号：US17701065
申请日：2022-03-22
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yilho Lee , Yongil Kwon , Sugyeung Kang , Tae-Hyeon Kwon , Sunkwon Kim , Hyunsang Park , Uijong Song
CPC classification number: G09G3/006 , G09G3/32 , G09G2330/12
Abstract: 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
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kangjoo KIM , Sugyeung Kang , Yongsik Kwak , Yongil Kwon , Sunkwon Kim , Uijong Song , Sewoong Ahn
IPC: G09G3/34
Abstract: 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：US20250014515A1
公开(公告)日：2025-01-09
申请号：US18758335
申请日：2024-06-28
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Sunkwon KIM , Uijong Song , Yongil Kwon , Seongyoung Ryu , Yilho Lee , Heejin Lee
IPC: G09G3/3233
Abstract: A display device includes pixels arranged in rows and columns, a scan driver, and a read-out circuit, wherein the read-out circuit is configured to read-out electrical properties of a pixel through the read-out line. The first pixel includes a first transistor, a second transistor, a third transistor, a fourth transistor, a fifth transistor, a sixth transistor, a seventh transistor, an eighth transistor, a ninth transistor, a first organic light-emitting diode connected between a second electrode of the seventh transistor and a ground node to which a ground voltage is applied, a second organic light-emitting diode between the second electrode of the eighth transistor and the ground node, and a third organic light-emitting diode connected between the second electrode of the ninth transistor and the ground node.
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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
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Yilho Lee , Yongil Kwon , Sugyeung Kang , Tae-Hyeon Kwon , Sunkwon Kim , Hyunsang Park , Uijong Song
CPC classification number: G09G3/006 , G09G3/32 , G09G2330/12
Abstract: 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
Applicant: SAMSUNG ELECTRONICS CO., LTD.
Inventor： Kangjoo Kim , Sugyeung Kang , Yongsik Kwak , Yongil Kwon , Sunkwon Kim , Uijong Song , Sewoong Ahn
IPC: G09G3/34
Abstract: 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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