Patents by Inventor Sang Dae Park
Sang Dae Park 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: 20240146263Abstract: A differential amplifier according to an embodiment can be provided in a data driving device for driving pixels of a display panel. The differential amplifier can improve the slew rate of the differential amplifier by supplying dynamic current to an input circuit stage and/or a current mirror circuit stage of the differential amplifier through a boosting circuit stage.Type: ApplicationFiled: October 27, 2023Publication date: May 2, 2024Applicant: LX SEMICON CO., LTD.Inventors: Sang Duk YU, Ho Jong PARK, Tae Jun AHN, Sung Dae YEO
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Patent number: 11961673Abstract: A multilayer ceramic electronic component includes a ceramic body comprising dielectric layers and first and second internal electrodes laminatedly disposed in a third direction with respective dielectric layers interposed therebetween, and first electrode and second external electrodes disposed on both surfaces of the ceramic body in the first direction and electrically connected to the first and second internal electrodes. When an absolute value of a horizontal angle in the second direction of the first internal electrode with respect to the first surface of the ceramic body is referred to a first angle of the internal electrode, a total sum of the first angles is less than 10°.Type: GrantFiled: April 11, 2023Date of Patent: April 16, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hwi Dae Kim, Ji Hong Jo, Woo Chul Shin, Sang Soo Park, Chan Yoon
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Publication number: 20240096560Abstract: A multilayer capacitor includes a capacitor body having an active region, upper and lower cover regions, and width margins on opposing sides of the active region. The width margin includes a first region on an internal side thereof adjacent the first and second internal electrodes and a second region on an external side between the first region and a respective external surface of the capacitor body, and he upper and lower cover regions each include a third region on an internal side thereof adjacent the internal electrodes and a fourth region on an external side between the third region and a respective external surface of the capacitor body. The active region, the second region, and the fourth region have a same dielectric constant A, and the first and third regions have a same dielectric constant B, and A and B are different from each other and satisfy 0.5?B/A.Type: ApplicationFiled: December 1, 2023Publication date: March 21, 2024Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hwi Dae KIM, Sang Soo PARK, Chan YOON, Woo Chul SHIN, Ji Hong JO
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Publication number: 20240096559Abstract: A multilayer ceramic capacitor includes a body including a dielectric layer and first and second internal electrodes having different sizes to each other, and having first and second surfaces of the first and second internal electrodes, opposing each other in a stacking direction, third and fourth surfaces connected to the first and second surfaces and opposing each other, and fifth and sixth surfaces connected to the first and second surfaces and connected to the third and fourth surfaces, and opposing each other; and first and second external electrodes.Type: ApplicationFiled: November 27, 2023Publication date: March 21, 2024Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Hwi Dae KIM, Chan YOON, Ji Hong JO, Sang Soo PARK, Woo Chul SHIN
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Patent number: 11929200Abstract: A coil component includes a body; first and second coil portions spaced apart from each other in the body; first and second external electrodes disposed on the body to be spaced apart from each other and connected to both ends of the first coil portion; and first and second ground electrodes spaced apart from each other on the body and connected to both ends of the second coil portion.Type: GrantFiled: December 10, 2020Date of Patent: March 12, 2024Assignee: SAMSUNG ELECTRO-MECHANICS CO., LTD.Inventors: Dong Hwan Lee, Sang Soo Park, Chan Yoon, Dong Jin Lee, Hwi Dae Kim, Hye Mi Yoo
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Publication number: 20240061047Abstract: An apparatus is provided for detecting an internal defect of a battery cell. The apparatus may include a time domain reflectometry (TDR) module configured to apply an electrical pulse to the battery cell and compare a reference waveform with a measurement waveform generated by detecting a reflected wave of the electrical pulse to determine whether a defect has occurred, and a signal line configured to electrically connect the TDR module to an electrode lead of the battery cell. The electrical pulse may be applied in a longitudinal direction of the battery cell. A method of detecting an internal defect of a battery cell is also provided.Type: ApplicationFiled: August 30, 2022Publication date: February 22, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: In Hwan CHO, Sang Dae PARK, Ju Mi LEE, Ju Young KIM
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Publication number: 20230393216Abstract: An apparatus for inspecting disconnection of an electrode tab of a battery cell includes a measurement part which measures impedance values and impedance angles of an inspection target battery cell over frequency; a calculation part which calculates real part resistance values of impedance of the inspection target battery cell over frequency from the impedance values and the impedance angles; and a determination part which determines whether an electrode tab of the battery cell is disconnected by comparing real part resistance values in a real part resistance value range in a resonance frequency range of good battery cells having the same type as the inspection target battery cell with the real part resistance values of the impedance of the inspection target battery cell in the same frequency range as the resonance frequency range.Type: ApplicationFiled: August 2, 2022Publication date: December 7, 2023Applicant: LG ENERGY SOLUTION, LTD.Inventors: Sang Dae PARK, Ju Young KIM, Ju Mi LEE, In Hwan CHO
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Patent number: 10578650Abstract: Disclosed is a shunt resistor for measuring current, and a shunt resistor for measuring current, in which one or more protrusions having an unevenness shape, which are formed on one lateral surface of a shunt resistor and one or more solders are bonded to each other, respectively and the shunt resistor and a printed circuit board are electrically connected to each other to measure current of a battery through a shunt resistance included in the shunt resistor unit.Type: GrantFiled: September 21, 2017Date of Patent: March 3, 2020Assignee: LG Chem, Ltd.Inventors: Dong Kwan Jang, Ki Chan Kim, Sang Dae Park, Kil Ja Lim
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Patent number: 10324252Abstract: Disclosed is a backlight unit. The backlight unit includes a light source, and a cover bottom internally accommodating the light source. Here, the cover bottom is divided into n-numbered (n>1) sub-cover bottoms, and a coupling unit for mutually fixing and coupling the divided cover bottoms is formed at ends of each of the cover bottoms facing each other.Type: GrantFiled: December 27, 2017Date of Patent: June 18, 2019Assignee: LG Display Co., Ltd.Inventors: Sang-Dae Park, Eun-Ju Kim
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Patent number: 10156745Abstract: A liquid crystal display device includes a liquid crystal display panel; a backlight assembly providing light to the liquid crystal display panel and including an optical sheet; a bottom cover supporting the liquid crystal display panel and the backlight assembly and including a side surface having an indented portion; and a fixing unit combined with the indented portion of the side surface of the bottom cover to fix the optical sheet, wherein the optical sheet includes a projecting portion, which is cut to include a fixing part and bridges and is united with the fixing unit.Type: GrantFiled: August 3, 2017Date of Patent: December 18, 2018Assignee: LG Display Co., Ltd.Inventors: Sang-Dae Park, Min-Jin Lee, Sung-Hwan Yoon
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Publication number: 20180120493Abstract: Disclosed is a backlight unit. The backlight unit includes a light source, and a cover bottom internally accommodating the light source. Here, the cover bottom is divided into n-numbered (n>1) sub-cover bottoms, and a coupling unit for mutually fixing and coupling the divided cover bottoms is formed at ends of each of the cover bottoms facing each other.Type: ApplicationFiled: December 27, 2017Publication date: May 3, 2018Inventors: Sang-Dae PARK, Eun-Ju KIM
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Publication number: 20180113153Abstract: Disclosed is a shunt resistor for measuring current, and a shunt resistor for measuring current, in which one or more protrusions having an unevenness shape, which are formed on one lateral surface of a shunt resistor and one or more solders are bonded to each other, respectively and the shunt resistor and a printed circuit board are electrically connected to each other to measure current of a battery through a shunt resistance included in the shunt resistor unit.Type: ApplicationFiled: September 21, 2017Publication date: April 26, 2018Applicant: LG CHEM, LTD.Inventors: Dong Kwan JANG, Ki Chan KIM, Sang Dae PARK, Kil Ja LIM
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Patent number: 9864129Abstract: Disclosed is a backlight unit. The backlight unit includes a light source, and a cover bottom internally accommodating the light source. Here, the cover bottom is divided into n-numbered (n>1) sub-cover bottoms, and a coupling unit for mutually fixing and coupling the divided cover bottoms is formed at ends of each of the cover bottoms facing each other.Type: GrantFiled: June 18, 2015Date of Patent: January 9, 2018Assignee: LG Display Co., Ltd.Inventors: Sang-Dae Park, Eun-Ju Kim
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Patent number: 9864412Abstract: A flexible display apparatus includes a frame module having a sliding path to guide the winding or unwinding of a flexible display module, and a sliding shaft configured to slide along a spiral sliding path via vertical movement of the flexible display module. The flexible display apparatus makes it easy to wind or unwind a large flexible display panel.Type: GrantFiled: December 28, 2015Date of Patent: January 9, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Sang Dae Park, Choun Sung Kang, Yong Seok Lee, Chang Yoon Park
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Publication number: 20170329174Abstract: A liquid crystal display device includes a liquid crystal display panel; a backlight assembly providing light to the liquid crystal display panel and including an optical sheet; a bottom cover supporting the liquid crystal display panel and the backlight assembly and including a side surface having an indented portion; and a fixing unit combined with the indented portion of the side surface of the bottom cover to fix the optical sheet, wherein the optical sheet includes a projecting portion, which is cut to include a fixing part and bridges and is united with the fixing unit.Type: ApplicationFiled: August 3, 2017Publication date: November 16, 2017Inventors: Sang-Dae PARK, Min-Jin LEE, Sung-Hwan YOON
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Patent number: 9753315Abstract: A liquid crystal display device includes a liquid crystal display panel; a backlight assembly providing light to the liquid crystal display panel and including an optical sheet; a bottom cover supporting the liquid crystal display panel and the backlight assembly and including a side surface having an indented portion; and a fixing unit combined with the indented portion of the side surface of the bottom cover to fix the optical sheet, wherein the optical sheet includes a projecting portion, which is cut to include a fixing part and bridges and is united with the fixing unit.Type: GrantFiled: December 23, 2014Date of Patent: September 5, 2017Assignee: LG Display Co., Ltd.Inventors: Sang-Dae Park, Min-Jin Lee, Sung-Hwan Yoon
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Patent number: 9756757Abstract: A flexible display apparatus has a small thickness which makes it easy to wind or unwind a flexible display module. The flexible display apparatus includes a frame module, into or from which a flexible display module is wound or unwound, and a panel elevating module configured to vertically move the flexible display module via folding or unfolding of at least one retractable unit. The retractable unit includes joint members provided at ends of first and second links intersecting each other, and elastic members installed to the respective joint members and supported by the ends of the first and second links.Type: GrantFiled: December 28, 2015Date of Patent: September 5, 2017Assignee: LG DISPLAY CO., LTD.Inventors: Chang Yoon Park, Choun Sung Kang, Yong Seok Lee, Sang Dae Park
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Patent number: 9690134Abstract: Disclosed is a display device. The display device includes a liquid crystal panel, a backlight unit configured to include a light source that supplies light to the liquid crystal panel, and a polarizing part adhered to the liquid crystal panel. The polarizing part is formed to extend in an outer direction of the liquid crystal panel, and surrounds at least one of an outside of the liquid crystal panel and an outside of the backlight unit.Type: GrantFiled: December 24, 2013Date of Patent: June 27, 2017Assignee: LG DIPLAY CO., LTD.Inventors: Seoung Mo Kang, Eun Ju Kim, Jin Ryun Kim, Young Ki Song, Sang Dae Park, Yang Hwan Kim
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Publication number: 20160374228Abstract: A flexible display apparatus has a small thickness which makes it easy to wind or unwind a flexible display module. The flexible display apparatus includes a frame module, into or from which a flexible display module is wound or unwound, and a panel elevating module configured to vertically move the flexible display module via folding or unfolding of at least one retractable unit. The retractable unit includes joint members provided at ends of first and second links intersecting each other, and elastic members installed to the respective joint members and supported by the ends of the first and second links.Type: ApplicationFiled: December 28, 2015Publication date: December 22, 2016Applicant: LG Display Co., Ltd.Inventors: Chang Yoon Park, Choun Sung Kang, Yong Seok LEE, Sang Dae Park
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Publication number: 20160363960Abstract: A flexible display apparatus includes a frame module having a sliding path to guide the winding or unwinding of a flexible display module, and a sliding shaft configured to slide along a spiral sliding path via vertical movement of the flexible display module. The flexible display apparatus makes it easy to wind or unwind a large flexible display panel.Type: ApplicationFiled: December 28, 2015Publication date: December 15, 2016Applicant: LG Display Co., Ltd.Inventors: Sang Dae Park, Choun Sung Kang, Yong Seok Lee, Chang Yoon Park