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: 20240153455Abstract: 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: January 3, 2024Publication date: May 9, 2024Inventors: SOON-DONG KIM, SANGAN KWON, TAEHOON KIM, HUI NAM, JUNHEYUNG JUNG
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Patent number: 11955081Abstract: A pixel includes: a storage capacitor connected between a first power supply voltage and a gate node; a first transistor including a gate electrode connected to the gate node; a second transistor to transfer a data signal to a source of the first transistor in response to a scan signal; a third transistor to diode-connect the first transistor in response to the scan signal, and including first and second sub-transistors serially connected between the gate node and a drain of the first transistor; a fourth transistor to transfer an initialization voltage to the gate node in response to an initialization signal, and including third and fourth sub-transistors serially connected between the gate node and the initialization voltage; and an organic light emitting diode including a cathode connected to a second power supply voltage. At least one of the second and fourth sub-transistors includes a bottom electrode.Type: GrantFiled: August 8, 2020Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Hyo Jin Lee, Joon-Chul Goh, Sangan Kwon, Hong Soo Kim, Hui Nam, Jin Young Roh, Sehyuk Park
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Publication number: 20240087154Abstract: A method of calculating an atrial wall thickness through a device including a processor and a memory according to an embodiment of the present disclosure may include (a) receiving image data for a patient's atrium as input data, (b) calculating endocardial and epicardial borders corresponding to starting and ending points of the atrial wall thickness from the received input data, and (c) calculating the patient's atrial wall thickness using the calculated endocardial and epicardial borders, wherein the image data for the patient's atrium received in the step (a) is a plurality of mask label image data for respective tomographic images of the patient's atrium acquired from computed tomography (CT) scans for the patient's atrium, and the mask label image data is data in which one or more pixels corresponding to an atrial wall region including the patient's atrium and an inner region of the atrium, other regions within the patient's heart disposed around the patient's atrium, and regions other than the patient'sType: ApplicationFiled: November 23, 2023Publication date: March 14, 2024Inventors: Hui-Nam PAK, Oh Seok KWON
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Patent number: 11928998Abstract: 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: GrantFiled: February 13, 2023Date of Patent: March 12, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Hui Nam, Eun Sil Yun, Changnoh Yoon
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Patent number: 11887539Abstract: 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: GrantFiled: October 17, 2022Date of Patent: January 30, 2024Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Soon-Dong Kim, Sangan Kwon, Taehoon Kim, Hui Nam, Junheyung Jung
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Publication number: 20240016003Abstract: 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: September 20, 2023Publication date: January 11, 2024Inventors: Hui NAM, Hae-Kwan SEO
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Patent number: 11854470Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.Type: GrantFiled: November 8, 2022Date of Patent: December 26, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Taehoon Kim, Sangan Kwon, Soon-Dong Kim, Hui Nam, Eun Sil Yun, Changnoh Yoon
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Patent number: 11842690Abstract: 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: GrantFiled: August 4, 2022Date of Patent: December 12, 2023Assignee: Samsung Display Co., Ltd.Inventors: Taehoon Kim, Sangan Kwon, Soon-Dong Kim, Hui Nam, Bonghyun You, Changnoh Yoon, Jaekeun Lim
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Publication number: 20230395017Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.Type: ApplicationFiled: August 16, 2023Publication date: December 7, 2023Inventors: TAEHOON KIM, SANGAN KWON, SOON-DONG KIM, HUI NAM, EUN SIL YUN, CHANGNOH YOON
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Patent number: 11823607Abstract: 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: May 9, 2022Date of Patent: November 21, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hyojin Lee, Sehyuk Park, Eunho Lee, Jinyoung Roh, Hui Nam, Bong-Hyun You
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Patent number: 11800748Abstract: 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: GrantFiled: April 28, 2021Date of Patent: October 24, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hui Nam, Hae-Kwan Seo
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Patent number: 11790858Abstract: 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: GrantFiled: November 28, 2022Date of Patent: October 17, 2023Assignee: Samsung Display Co., Ltd.Inventors: Sangan Kwon, Soon-Dong Kim, Taehoon Kim, Hui Nam, Junhee Moon, Eun Sil Yun, Changnoh Yoon
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Patent number: 11749211Abstract: A display device includes: a display panel including a plurality of pixels; and a driving controller configured to: generate a data signal corresponding to an input image data; generate a data voltage based on the data signal; and output the data voltage to the pixels, wherein the driving controller is configured to output the data signal in at least one driving frequency higher than a predetermined low frequency during an image transition period in a low frequency driving mode during which the data signal outputs in the low frequency.Type: GrantFiled: September 26, 2022Date of Patent: September 5, 2023Assignee: Samsung Display Co., Ltd.Inventors: Sehyuk Park, Hyojin Lee, Hui Nam, Jinyoung Roh, Bong Hyun You, Eunho Lee
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Publication number: 20230196959Abstract: 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: February 13, 2023Publication date: June 22, 2023Inventors: SANGAN KWON, SOON-DONG KIM, TAEHOON KIM, HUI NAM, EUN SIL YUN, CHANGNOH YOON
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Publication number: 20230186833Abstract: A display device includes a display panel, a data driver, a scan driver, and a light emitting driver. The display panel includes a first display area and a second display area. The display panel displays a first image on the first display area and the second display area in a first mode, and displays a second image on the first display area in a second mode. The light emitting driver activates emission control signals applied to the first display area and the second display area in the first mode. The light emitting driver activates emission control signals applied to the second display area during a first partial frame in the second mode, and maintains the emission control signals applied to the second display area in a deactivation state during a plurality of second partial frames in the second mode.Type: ApplicationFiled: November 8, 2022Publication date: June 15, 2023Inventors: TAEHOON KIM, SANGAN KWON, SOON-DONG KIM, HUI NAM, EUN SIL YUN, CHANGNOH YOON
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Patent number: 11651512Abstract: 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: GrantFiled: January 30, 2020Date of Patent: May 16, 2023Assignee: INDUSTRY-ACADEMIC COOPERATION FOUNDATION YONSEI UNIVERSITYInventors: Hui-Nam Pak, Byounghyun Lim, Oh Seok Kwon
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Patent number: 11626074Abstract: A display device includes a display panel including a plurality of pixels each coupled to a write scan line, a compensation scan line, an initialization scan line, a bypass scan line, and a data line; and a scan driver configured to supply i (where i is a natural number) write scan pulses, compensation scan pulses, initialization scan pulses, and bypass scan pulses to the write scan line, the compensation scan line, the initialization scan line, and the bypass scan line, respectively, during a first period corresponding to one frame period, and to supply j (where j is a natural number other than i) write scan pulses to the write scan line during each of frame periods of a second period including a plurality of consecutive frame periods.Type: GrantFiled: August 26, 2019Date of Patent: April 11, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jin Young Roh, Hui Nam, Se Hyuk Park, Hyo Jin Lee
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Patent number: 11615749Abstract: A display apparatus includes a display panel, a gate driver, a data driver and an emission driver. The display panel includes a pixel. The gate driver outputs a data write gate signal having a corresponding active level and a data initialization gate signal having a corresponding active level to the pixel in a writing frame, outputs the data write gate signal not having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a holding frame and outputs the data write gate signal having the corresponding active level and the data initialization gate signal not having the corresponding active level to the pixel in a writing compensation frame. The data driver outputs a data voltage to the pixel. The emission driver outputs an emission signal to the pixel.Type: GrantFiled: July 19, 2021Date of Patent: March 28, 2023Assignee: Samsung Display Co., Ltd.Inventors: Hui Nam, Hyo Jin Lee, Jinyoung Roh, Sehyuk Park
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Publication number: 20230086572Abstract: 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: November 28, 2022Publication date: March 23, 2023Inventors: Sangan KWON, Sonn-Dong KIM, Taehoon KIM, Hui NAM, Junhee MOON, Eun Sil YUN, Changnoh YOON
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Patent number: 11605335Abstract: 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: GrantFiled: February 25, 2020Date of Patent: March 14, 2023Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hyojin Lee, Sehyuk Park, Hui Nam