Patents by Inventor Hyunseok Hwang
Hyunseok Hwang 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: 20240071277Abstract: In a gamma voltage correction method for a display device including a first display area and a second display area, the gamma voltage correction method includes: correcting a gamma voltage for each sub-pixel of the first display area based on measured light characteristics of a first area of the first display area in a plurality of gray levels; and correcting a gamma voltage for each sub-pixel of the second display area based on measured light characteristics of a second area of the first display area around the second display area and measured light characteristics of the second display area in the plurality of gray levels.Type: ApplicationFiled: August 24, 2023Publication date: February 29, 2024Inventors: Sibeak Pyo, Sungjin Kim, Hyosang Yang, Eunjung Oh, Seungkyu Lee, Yoongyu Lee, Hyelim Lee, Younwoo Choe, Hyunseok Hong, Younguk Hwang
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Patent number: 10359817Abstract: A display device according to one embodiment of the present invention includes a display module, and a heat dissipation unit which is coupled to a rear side of the display module. The heat dissipation unit includes a core part including a plurality of hollow polygonal columns extending in a front/back direction, a front sheet which is coupled to a front portion of the core part, and a rear sheet which is coupled to a rear portion of the core part. The core part has a thickness of about 40% to about 60% in the front/back direction with respect to a total thickness of the heat dissipation unit in the front/back direction.Type: GrantFiled: April 27, 2017Date of Patent: July 23, 2019Assignee: LG ELECTRONICS INC.Inventors: Seunghyun Yun, Sangsoo Lee, Hyunseok Hwang, Jangil Lee, Kwangsik Yoo, Youngdon Choi, Seokmin Hong, Kihoon Nam, Woohyuk Choi, Inkeun Ryu
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Patent number: 9774347Abstract: An image sensor includes a pixel array, a controller, and a plurality of analog-to-digital converters. The pixel array includes a plurality of pixels coupled to column lines, respectively, and the plurality of pixels are configured to sense incident lights to generate analog signals through the column lines. The controller generate a conversion control signal that is configurable based on changes of at least one operational condition. The plurality of analog-to-digital converters are coupled to the column lines, respectively. The plurality of analog-to-digital converters perform a delta-sigma modulation and a digital filtering to convert the analog signals to digital signals. The plurality of analog-to-digital converters adjust a conversion gain internally in response to the conversion control signal.Type: GrantFiled: December 29, 2014Date of Patent: September 26, 2017Assignees: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Youngcheol Chae, Jae-Hong Kim, Seungwoo Song, Woojin Jo, Hyunseok Hwang
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Publication number: 20170228001Abstract: A display device according to one embodiment of the present invention includes a display module, and a heat dissipation unit which is coupled to a rear side of the display module. The heat dissipation unit includes a core part including a plurality of hollow polygonal columns extending in a front/back direction, a front sheet which is coupled to a front portion of the core part, and a rear sheet which is coupled to a rear portion of the core part. The core part has a thickness of about 40% to about 60% in the front/back direction with respect to a total thickness of the heat dissipation unit in the front/back direction.Type: ApplicationFiled: April 27, 2017Publication date: August 10, 2017Applicant: LG ELECTRONICS INC.Inventors: Seunghyun YUN, Sangsoo LEE, Hyunseok HWANG, Jangil LEE, Kwangsik YOO, Youngdon CHOI, Seokmin HONG, Kihoon NAM, Woohyuk CHOI, Inkeun RYU
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Patent number: 9658659Abstract: A display device according to one embodiment of the present invention includes a display module, and a heat dissipation unit which is coupled to a rear side of the display module. The heat dissipation unit includes a core part including a plurality of hollow polygonal columns extending in a front/back direction, a front sheet which is coupled to a front portion of the core part, and a rear sheet which is coupled to a rear portion of the core part. The core part has a thickness of about 40% to about 60% in the front/back direction with respect to a total thickness of the heat dissipation unit in the front/back direction.Type: GrantFiled: January 10, 2014Date of Patent: May 23, 2017Assignee: LG ELECTRONICS INC.Inventors: Seunghyun Yun, Sangsoo Lee, Hyunseok Hwang, Jangil Lee, Kwangsik Yoo, Youngdon Choi, Seokmin Hong, Kihoon Nam, Woohyuk Choi, Inkeun Ryu
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Patent number: 9473166Abstract: An analog-to-digital converter includes a modulator, a controller, and a digital filter. The modulator generates a modulated signal based on an analog signal. The controller generates a weight control signal. The digital filter includes a weight signal generator and a first integrator. The weight signal generator generates a weight signal based on the weight control signal. The first integrator generates a digital signal corresponding to the analog signal by integrating the weight signal in response to the modulated signal. The weight control signal corresponds to a type and an order of the digital filter.Type: GrantFiled: April 22, 2015Date of Patent: October 18, 2016Assignees: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Jae-Hong Kim, Youngcheol Chae, Seungwoo Song, Woojin Jo, Hyunseok Hwang
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Publication number: 20150355689Abstract: A display device according to one embodiment of the present invention includes a display module, and a heat dissipation unit which is coupled to a rear side of the display module. The heat dissipation unit includes a core part including a plurality of hollow polygonal columns extending in a front/back direction, a front sheet which is coupled to a front portion of the core part, and a rear sheet which is coupled to a rear portion of the core part. The core part has a thickness of about 40% to about 60% in the front/back direction with respect to a total thickness of the heat dissipation unit in the front/back direction.Type: ApplicationFiled: January 10, 2014Publication date: December 10, 2015Applicant: LG ELECTRONICS INCInventors: Seunghyun YUN, Sangsoo LEE, Hyunseok HWANG, Jangil LEE, Kwangsik YOO, Youngdon CHOI, Seokmin HONG, Kihoon NAM, Woohyuk CHOI, Inkeun RYU
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Publication number: 20150311912Abstract: An analog-to-digital converter includes a modulator, a controller, and a digital filter. The modulator generates a modulated signal based on an analog signal. The controller generates a weight control signal. The digital filter includes a weight signal generator and a first integrator. The weight signal generator generates a weight signal based on the weight control signal. The first integrator generates a digital signal corresponding to the analog signal by integrating the weight signal in response to the modulated signal. The weight control signal corresponds to a type and an order of the digital filter.Type: ApplicationFiled: April 22, 2015Publication date: October 29, 2015Inventors: Jae-Hong Kim, Youngcheol Chae, Seungwoo Song, Woojin Jo, Hyunseok Hwang
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Publication number: 20150311914Abstract: An image sensor includes a pixel array, a controller, and a plurality of analog-to-digital converters. The pixel array includes a plurality of pixels coupled to column lines, respectively, and the plurality of pixels are configured to sense incident lights to generate analog signals through the column lines. The controller generate a conversion control signal that is configurable based on changes of at least one operational condition. The plurality of analog-to-digital converters are coupled to the column lines, respectively. The plurality of analog-to-digital converters perform a delta-sigma modulation and a digital filtering to convert the analog signals to digital signals. The plurality of analog-to-digital converters adjust a conversion gain internally in response to the conversion control signal.Type: ApplicationFiled: December 29, 2014Publication date: October 29, 2015Applicants: SAMSUNG ELECTRONICS CO., LTD., INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITYInventors: Youngcheol CHAE, Jae-Hong KIM, Seungwoo SONG, Woojin JO, Hyunseok HWANG
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Patent number: D934824Type: GrantFiled: March 6, 2020Date of Patent: November 2, 2021Assignee: LG ELECTRONICS INC.Inventors: Kwaneun Jin, Jaeyong Kim, Changshik Minn, Jiwon Park, Hyunseok Hwang