Patents by Inventor Hui Nam
Hui Nam has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20220211330Abstract: A method for generating a heart model reflecting action potential duration restitution is provided, which can visually output the maximum slope of the correlation between a relaxation period and an action potential duration at every point included in a three-dimensional heart model.Type: ApplicationFiled: May 7, 2020Publication date: July 7, 2022Inventors: Hui Nam PAK, Byoung Hyun LIM
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Patent number: 11380269Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.Type: GrantFiled: August 30, 2021Date of Patent: July 5, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyo Jin Lee, Sangan Kwon, Hui Nam, Jinyoung Roh, Sehyuk Park
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Patent number: 11341913Abstract: A pixel circuit includes a main-circuit that controls an organic light-emitting element by controlling a driving current to flow into the organic light-emitting element and a sub-circuit including a first compensation transistor including a gate terminal which receives a first gate signal, a second compensation transistor including a gate terminal which receives a second gate signal, and an initialization transistor including a gate terminal which receives an initialization signal. Here, in a low-frequency driving mode, a driving frequency of the first gate signal is N hertz (Hz), a driving frequency of the initialization signal is N Hz, a driving frequency of the second gate signal is M Hz, the first compensation transistor and the initialization transistor are turned on during a first time duration in N non-light-emitting periods per second, and the second compensation transistor is turned on during a second time duration in M non-light-emitting periods per second.Type: GrantFiled: April 12, 2021Date of Patent: May 24, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyo Jin Lee, Joon-Chul Goh, Sangan Kwon, Hui Nam, Jin Young Roh, Sehyuk Park
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Publication number: 20220157250Abstract: Provided is a scan driver of a display device, and the scan driver includes a driving circuit and a masking circuit. The driving circuit includes a control circuit, a first output circuit, and a second output circuit. The control circuit outputs a first control signal and a second control signal. The first output circuit is connected to a first output terminal which outputs a first scan signal and a first voltage terminal and operates in response to a first control signal. The second output circuit is connected to a first output terminal and a second voltage terminal and operates in response to a second control signal. The masking circuit outputs a second scan signal to a second output terminal in response to the first control signal and the second control signal and is connected to an input terminal to which a masking signal is supplied.Type: ApplicationFiled: June 9, 2021Publication date: May 19, 2022Inventors: TAEHOON KIM, SANGAN KWON, SOON-DONG KIM, HUI NAM, BONGHYUN YOU, CHANGNOH YOON, JAEKEUN LIM
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Patent number: 11328649Abstract: A driving controller of a display device, the controller including a segment divider configured to divide the image signal into a plurality of segments and define a predetermined number of adjacent segments among the plurality of segments as a segment block, an image signal adder configured to add up a gray scale value of the image signal of each of the predetermined number of adjacent segments and output the added-up gray scale values, an average gray scale calculator configured to receive the added-up gray scale values and output an average gray scale value, a correction circuit configured to output corrected added-up gray scale values obtained by adding a weight value to each of the added-up gray scale values on the basis of the average gray scale value, and a driving frequency determiner configured to determine the driving frequency of the display device on the basis of the corrected added-up gray scale values.Type: GrantFiled: December 17, 2019Date of Patent: May 10, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hyojin Lee, Sehyuk Park, Eunho Lee, Jinyoung Roh, Hui Nam, Bong-Hyun You
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Publication number: 20220139330Abstract: Provided is a display device. The display device includes a display panel that includes a first display region and a second display region, a data driving circuit configured to drive a plurality of data lines, a scan driving circuit configured to drive a plurality of scan lines, and a driving controller configured to control the data driving circuit and the scan driving circuit so as to operate the first display region and the second display region at different frequencies when an operation mode is a multi-frequency mode, wherein the driving controller changes the operation mode to a normal mode when a difference between an image signal of a current frame of the first display region and an image signal of a previous frame of the first display region is equal to or greater than a reference value during the multi-frequency mode.Type: ApplicationFiled: June 25, 2021Publication date: May 5, 2022Inventors: SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, HUI NAM, JUNHEE MOON, EUN SIL YUN, CHANGNOH YOON
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Publication number: 20220131321Abstract: A connector assembly includes: a housing having a first side at which a plurality of accommodating grooves configured to receive a plurality of terminals are formed, and having a second side open; a plurality of connection terminals extending in a direction parallel to a direction from the first side of the housing toward the second side of the housing, and fixed in the housing; a circuit board inserted into the second side of the housing that is open, fixed to the housing, and electrically connected to the plurality of connection terminals; and noise filters configured to filter out electromagnetic interference and coupled to the circuit board.Type: ApplicationFiled: April 26, 2021Publication date: April 28, 2022Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, YURA CO., LTD.Inventors: Ji Hyoung KIM, Jung Nan RYU, Ki Hui NAM, Seoung Ho JUNG
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Publication number: 20220130325Abstract: A pixel includes a switching transistor transmitting a data voltage to a first node, a storage capacitor electrically connected between a first power supply line and the first node and storing the data voltage, first and second driving transistors electrically connected to the first power supply line, the first node, and a second node, and first and second light emitting elements electrically connected between the second node and a second power supply line. An anode of the first light emitting element and a cathode of the second light emitting element are electrically connected to the second node, a cathode of the first light emitting element and an anode of the second light emitting element are electrically connected to the second power supply line, the first driving transistor is a P-type transistor, and the second driving transistor is an N-type transistor.Type: ApplicationFiled: February 25, 2020Publication date: April 28, 2022Applicant: Samsung Display Co., LTD.Inventors: Hyojin LEE, Sehyuk PARK, Hui NAM
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Patent number: 11315457Abstract: A display device includes a driving controller which provides a first start signal and a second start signal corresponding to an operation mode to a scan driving circuit. The scan driving circuit includes a first scan driving circuit having first dummy driving stages and first driving stages which sequentially drive scan lines corresponding to a first display region among a plurality of scan lines in synchronization with the first start signal and a second scan driving circuit having second dummy driving stages and second driving stages which sequentially drive scan lines corresponding to a second display region among the plurality of scan lines in synchronization with the second start signal. The first dummy driving stages are disposed on a first side surface of the display panel and the second dummy driving stages are disposed on a second side surface of the display panel.Type: GrantFiled: April 15, 2021Date of Patent: April 26, 2022Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sangan Kwon, Jinoh Kwag, Soon-Dong Kim, Taehoon Kim, Hui Nam, Bonghyun You, Eun Sil Yun, Changnoh Yoon
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Publication number: 20220115478Abstract: A display device includes: scan lines extending in a first direction; first data lines, second data lines, and third data lines extending in a second direction; a first driving unit connected to the scan lines and the first data lines; a first light emitting unit connected to the first driving unit; a second driving unit connected to the scan lines and the second data lines; a second light emitting unit connected to the second driving unit; a third driving unit connected to the scan lines and the second data lines; and a third light emitting unit connected to the third driving unit. The first light emitting unit overlaps the second driving unit or the third driving unit, the second light emitting unit overlaps the first driving unit or the third driving unit, and the third light emitting unit overlaps the first driving unit or the second driving unit.Type: ApplicationFiled: April 28, 2021Publication date: April 14, 2022Inventors: Hui NAM, Hae-Kwan SEO
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Publication number: 20220084233Abstract: A method by which a left atrial wall thickness measurement device for the heart measures the left atrial wall thickness of the heart, according to one embodiment of the present invention, can simply, quickly, and accurately measure the thickness of the left atrium of the heart with only a simple input of a user so as to also derive the optimum effect of a radiofrequency catheter ablation procedure, and measures the thickness of the left atrium of the heart by using, without a separate additional inspection, computed tomography, which is relatively inexpensive and is performed for most patients with arrhythmia, thereby minimizing the financial burden on a patient.Type: ApplicationFiled: January 30, 2020Publication date: March 17, 2022Inventors: Hui-Nam PAK, Byounghyun LIM, Oh Seok KWON
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Publication number: 20220068202Abstract: A display apparatus includes a display panel including a pixel to display an image based on input image data, a driving controller which determines a driving frequency of a first display area of the display panel to be a first driving frequency and determines a driving frequency of a second display area of the display panel to be a second driving frequency less than the first driving frequency when the first display area displays a moving image and the second display area of the display panel displays a still image, and an emission driver which outputs a moving image emission signal corresponding to the first driving frequency and a still image emission signal corresponding to the second driving frequency to the display panel. A width of a non-emission period of the still image emission signal is greater than a width of a non-emission period of the moving image emission signal.Type: ApplicationFiled: May 24, 2021Publication date: March 3, 2022Inventors: SOON-DONG KIM, SANGAN KWON, TAEHOON KIM, HUI NAM, JUNHEYUNG JUNG
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Publication number: 20220068216Abstract: A display device includes a display panel, a data driving circuit which drives a plurality of data lines, a scan driving circuit which drives a plurality of scan lines, and a driving controller which controls the data driving circuit and the scan driving circuit such that the display panel is divided into a first display region and a second display region during a multi-frequency mode and the first display region and the second display region are respectively operated at different frequencies, where the driving controller changes an operation mode to a normal mode when a still image and a moving image are simultaneously displayed in the first display region during the multi-frequency mode and the duration of the still image reaches a predetermined time.Type: ApplicationFiled: April 26, 2021Publication date: March 3, 2022Inventors: CHANGNOH YOON, SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, HUI NAM, EUN SIL YUN, SEUNGJAE LEE
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Patent number: 11264446Abstract: A display apparatus includes: a display panel configured to display an image based on input image data; a gate driver configured to output a gate signal to the display panel; a data driver configured to output a data voltage to the display panel; a driving controller configured to control an operation of the gate driver and an operation of the data driver, to determine a normal driving mode and a low frequency driving mode based on the input image data, and to determine a driving frequency of the display panel based on the input image data; and a touch driver configured to detect a touch event occurring on the display panel, and to output a touch interrupt signal representing the touch event to the driving controller.Type: GrantFiled: April 8, 2020Date of Patent: March 1, 2022Assignee: Samsung Display Co., Ltd.Inventors: Hyo Jin Lee, Jinyoung Roh, Sehyuk Park, Sangan Kwon, Hui Nam
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Publication number: 20220059034Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.Type: ApplicationFiled: November 1, 2021Publication date: February 24, 2022Inventors: HYOJIN LEE, Sehyuk PARK, Jinyoung ROH, Geunjeong PARK, EUNHO LEE, Hui NAM, BONGHYUN YOU
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Publication number: 20220044631Abstract: A display device includes a plurality of pixels arranged in m rows and n columns, where the pixels receive write scan signals, data voltages and compensation scan signals, a plurality of write scan lines which provides the write scan signals to the pixels, a plurality of data lines which provides the data voltages to the pixels, and a plurality of compensation scan lines which provides the compensation scan signals to the pixels, wherein in h-th to p-th frames, the data voltages are applied to pixels arranged in first to i-th rows, and in h-th to (h+k)-th frames, the data voltages are applied to pixels of a row unit by increasing sequentially the number of the row unit to which the data voltages are applied in at least one row unit from an i-th row to an (i+1)-th row.Type: ApplicationFiled: March 12, 2021Publication date: February 10, 2022Inventors: SANGAN KWON, HUI NAM, SOON-DONG KIM, CHANGNOH YOON, SEUNGJAE LEE
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Publication number: 20220028314Abstract: A display device includes a display panel including a first partial panel region and a second partial panel region, and a panel driver which drives the display panel. The panel driver determines a first driving frequency for the first partial panel region and a second driving frequency for the second partial panel region. In a case where the first driving frequency and the second driving frequency are different from each other, the panel driver sets a boundary portion including a boundary between the first partial panel region and the second partial panel region, and determines a third driving frequency for the boundary portion to be between the first driving frequency and the second driving frequency.Type: ApplicationFiled: March 16, 2021Publication date: January 27, 2022Inventors: SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, HUI NAM, EUN SIL YUN, CHANGNOH YOON
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Publication number: 20220020303Abstract: A display device includes a driving controller which provides a first start signal and a second start signal corresponding to an operation mode to a scan driving circuit. The scan driving circuit includes a first scan driving circuit having first dummy driving stages and first driving stages which sequentially drive scan lines corresponding to a first display region among a plurality of scan lines in synchronization with the first start signal and a second scan driving circuit having second dummy driving stages and second driving stages which sequentially drive scan lines corresponding to a second display region among the plurality of scan lines in synchronization with the second start signal. The first dummy driving stages are disposed on a first side surface of the display panel and the second dummy driving stages are disposed on a second side surface of the display panel.Type: ApplicationFiled: April 15, 2021Publication date: January 20, 2022Inventors: SANGAN KWON, JINOH KWAG, SOON-DONG KIM, TAEHOON KIM, HUI NAM, BONGHYUN YOU, EUN SIL YUN, CHANGNOH YOON
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Publication number: 20210390913Abstract: A display device includes a display panel including a plurality of pixels and a display panel driver configured to drive the display panel. Here, the display panel driver is configured to receive input image data, to drive the display panel at a first driving frequency when the input image data corresponds to a moving image, and to select one of a plurality of flicker lookup tables based on the first driving frequency and drive the display panel at a second driving frequency based on the flicker lookup table when the input image data corresponds to a still image.Type: ApplicationFiled: August 30, 2021Publication date: December 16, 2021Inventors: HYO JIN LEE, SANGAN KWON, HUI NAM, JINYOUNG ROH, SEHYUK PARK
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Patent number: 11195465Abstract: A display device including: a display panel including a pixel connected to a first scan line, second scan line, and data line, the pixel including: a first switch connected to the first scan line; a second switch connected to the second scan line; and a light emitting element; a low-frequency driving controller to output a power control signal having a first level in a first mode and a second power control signal having a second level in a second mode; a scan driver including first and second scan drivers to drive the first and second scan lines, wherein one of the first and second scan drivers operates in the second mode; and a data driver to operate in the second mode in response to the power control signal having the second level, wherein the data driver operates at a frequency lower than a reference frequency in the second mode.Type: GrantFiled: January 8, 2020Date of Patent: December 7, 2021Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyojin Lee, Sehyuk Park, Jinyoung Roh, Geunjeong Park, Eunho Lee, Hui Nam, Bonghyun You