Patents by Inventor Jung Uk Hwang
Jung Uk 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: 20250104603Abstract: A display device includes a first pixel driver connected to a sweep line, the first pixel driver generating a control current based on a first data voltage, a second pixel driver connected to a scan control line, the second pixel driver generating a driving current based on a second data voltage and controlling a period for which the driving current flows, based on the control current, and a light-emitting element connected to the second pixel driver to receive the driving current. The first pixel driver includes a first transistor generating the control current based on the first data voltage, a second transistor providing the first data voltage to a first electrode of the first transistor based on a scan write signal, and a first capacitor including a first capacitor electrode connected to a gate electrode of the first transistor, and a second capacitor electrode connected to the sweep line.Type: ApplicationFiled: December 10, 2024Publication date: March 27, 2025Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Sang Jin JEON, Jun Ki JEONG
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Patent number: 12254809Abstract: A display device includes PAM data lines receiving PAM and PWM data voltages, and sub-pixels connected to the PAM and PWM data lines. A sub-pixel includes a light emitting element, a first pixel driver to supply a control current according to one of the PAM data voltages to a node, a second pixel driver to generate a driving current according to one of the PWM data voltages, and a third pixel driver to adjust a period during which the driving current is supplied to the light emitting element according to a voltage of the node. A peak current value of the driving current when the sub-pixel emits a light corresponding to a low gray level region is smaller than a peak current value of the driving current when the sub-pixel emits a light corresponding to a high gray level region higher than the low gray level region.Type: GrantFiled: January 25, 2024Date of Patent: March 18, 2025Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jung Hwan Hwang, Hyun Joon Kim, Kye Uk Lee, Jun Ki Jeong
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Patent number: 12249273Abstract: A display device includes connection lines, pulse amplitude modulation (PAM) data lines configured to receive pulse width modulation (PWM) data voltages, PWM data lines configured to receive the PWM data voltages, a first connection control line configured to receive a first connection control signal, a second connection control line configured to receive a second connection control signal, subpixels connected to the PWM data lines and the PAM data lines, and a first demultiplexer (demux) unit configured to connect the connection lines to the PAM data lines or to the PWM data lines according to the first connection control signal and the second connection control signal.Type: GrantFiled: October 30, 2023Date of Patent: March 11, 2025Assignee: Samsung Display Co., Ltd.Inventors: Jung Hwan Hwang, Hyun Joon Kim, Kye Uk Lee, Jun Ki Jeong, Sang Jin Jeon
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Patent number: 12249272Abstract: Provided are a display device and a tiled display comprising the same. The display device includes PWM data lines for respectively receiving PWM data voltages, first to third data lines for respectively receiving first to third data voltages, sub-pixels respectively connected to the PWM data lines, respectively connected to the first to third data lines, and respectively including at least one light-emitting element, a global power supply line for receiving a global power supply voltage, and a first demultiplexer between the PWM data lines and the global power supply line, wherein the PWM data voltages have grayscale voltages from a black grayscale voltage to a white grayscale voltage, the black grayscale voltage being greater than or equal to the global power supply voltage.Type: GrantFiled: October 13, 2023Date of Patent: March 11, 2025Assignee: Samsung Display Co., Ltd.Inventors: Sang Jin Jeon, Min Chul Shin, Jung Hwan Hwang, Sung Hwan Kim, Ji Youn Seo, Kye Uk Lee
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Patent number: 12230195Abstract: A display device includes PWM data lines to receive PWM data voltages, first to third data lines to receive corresponding data voltages from among first to third data voltages, sweep signal lines to receive sweep signals, and a sub-pixel connected to a PWM data line from among the PWM data lines, a data line from among the first to third data lines, and a sweep signal line from among the sweep signal lines, and includes at least one light emitting element. The sub-pixel may include a first transistor, a first capacitor electrode connected to a gate electrode of the first transistor, and a second capacitor electrode connected to the sweep signal line, and overlapping the first capacitor electrode in a thickness direction of the display device. The second capacitor electrode does not overlap a source electrode and a drain electrode of the first transistor in the thickness direction.Type: GrantFiled: January 29, 2024Date of Patent: February 18, 2025Assignee: Samsung Display Co., Ltd.Inventors: Kye Uk Lee, Jung Hwan Hwang, Ji Youn Seo
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Publication number: 20220211762Abstract: The present invention relates to a pharmaceutical composition for the treatment of sepsis or systemic inflammatory response syndrome (SIRS) comprising mitochondria as effective ingredient. When activated macrophages and monocytes are treated with mitochondria which are effective ingredient of the pharmaceutical composition of the present invention, expression of IL-1?, TNF-? and IL-6 which are pro-inflammatory cytokines can be restored to normal levels. Furthermore, when the pharmaceutical composition of the present invention is administered to a subject suffering from sepsis, the survival rate of the subject can be remarkably increased. Therefore, the pharmaceutical composition according to the present invention can be useful for the treatment of sepsis.Type: ApplicationFiled: April 27, 2020Publication date: July 7, 2022Inventors: Kyuboem HAN, Chun-Hyung KIM, Shin-Hye YU, Seo-Eun LEE, Sang-Min LIM, Hahnsun JUNG, Kwangmin NA, Yoon Mi HAN, Jun Young SON, Jong-Cheon HA, Kyunghee JUNG, Young-Cheol KANG, Eun-Seo LEE, Mi Jin KIM, Yong-Soo CHOI, Jung Uk HWANG, Min Ji LEE, Kyuseok KIM, Tae Nyoung CHUNG
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Publication number: 20210052659Abstract: The present invention relates to a pharmaceutical composition for prevention or treatment of rheumatoid arthritis and, more particularly, to a pharmaceutical composition comprising mitochondria as an effective ingredient for prevention or treatment of rheumatoid arthritis. When a foreign mitochondria pharmaceutical composition of the present invention is administered to a subject suffering from rheumatoid arthritis, the subject may alleviate edema and rubefaction symptoms. In addition, the pharmaceutical composition of the present invention reduces an expression level of the inflammatory cytokine IL-6, but increases an expression level of the anti-inflammatory cytokine IL-10 in the subject. Therefore, the pharmaceutical composition according to the present invention can be effectively used for preventing or treating rheumatoid arthritis.Type: ApplicationFiled: February 7, 2019Publication date: February 25, 2021Inventors: Yong-Soo CHOI, Jung Uk HWANG, Kyuboem HAN, Chun-Hyung KIM
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Publication number: 20200009198Abstract: The present invention relates to a pharmaceutical composition containing mitochondria and, more specifically, to a pharmaceutical composition for preventing or treating muscle diseases or ischemic diseases, containing mitochondria as active ingredients. The pharmaceutical composition of the present invention contains heterologous mitochondria or cells comprising heterologous mitochondria, thereby enabling the mitochondrial activity of cells to which the same is administered to improve. Therefore, the pharmaceutical composition according to the present invention can be useful in the fundamental prevention or treatment of muscle diseases or ischemic diseases, which occur in relationship with the deterioration of mitochondrial function.Type: ApplicationFiled: November 28, 2017Publication date: January 9, 2020Applicant: PAEAN BIOTECHNOLOGY INC.Inventors: Yong-Soo CHOI, Chang-koo YUN, Mi-Jin KIM, Jung Uk HWANG
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Publication number: 20190276852Abstract: The present invention relates to a method for delivering exogenous mitochondria into cells and, more specifically, to a method for efficiently delivering, into the cytoplasm of target cells to be injected, mitochondria isolated from donor cells.Type: ApplicationFiled: November 14, 2017Publication date: September 12, 2019Applicant: PAEAN BIOTECHNOLOGY INCInventors: Yong-Soo CHOI, Chang-koo YUN, Min-Jin KIM, Jung Uk HWANG, Chun-Hyung KIM, Youngjun LEE
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Patent number: 7766391Abstract: A pipe connecting structure including a male flange block combined with a first pipe and a female flange block combined with a second pipe, which is fastened to the male flange block by a fastener, where a protrusion having a hole that communicates with the first pipe is formed through the male flange block, and an insert portion into which the protrusion is inserted is formed through the female flange block, and a sealing member to closely contact with the end face of the protrusion is seated on the bottom inside the insert portion, and the sealing member includes an inner sealing part of soft metal and an outer sealing part of rubber tightly fitted around the outer circumference of the inner sealing part.Type: GrantFiled: April 2, 2007Date of Patent: August 3, 2010Assignee: Doowon Climate Control Co., Ltd.Inventors: Jong Chul Kim, Jung Uk Hwang, Hong Yeol Lee, Ki Chun Sung
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Publication number: 20070236008Abstract: The present invention provides a pipe connecting structure including a male flange block combined with a first pipe and a female flange block combined with a second pipe, which is fastened to the male flange block by fastening means, where a protrusion having a hole that communicates with the first pipe is formed through the male flange block, and an insert portion into which the protrusion is inserted is formed through the female flange block, and a sealing member to closely contact with the end face of the protrusion is seated on the bottom inside the insert portion, and the sealing member includes an inner sealing part of soft metal and an outer sealing part of rubber tightly fitted around the outer circumference of the inner sealing part.Type: ApplicationFiled: April 2, 2007Publication date: October 11, 2007Inventors: Jong Chul Kim, Jung Uk Hwang, Hong Yeol Lee, Ki Chun Sung