Patents by Inventor Hyun Ki JEONG
Hyun Ki JEONG 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: 20240161676Abstract: 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: ApplicationFiled: January 25, 2024Publication date: May 16, 2024Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Jun Ki JEONG
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Patent number: 11961950Abstract: A display device comprises a substrate, a semiconductor layer thereon, a first insulating layer on the semiconductor layer, a first conductive layer on the first insulating layer and including a first electrode pattern, a second insulating layer on the first insulating layer and including first and second conductive patterns, a third insulating layer on the second conductive layer, and a display element layer on the third insulating layer and including a first pixel electrode connected to the first conductive pattern through a first via hole, a second pixel electrode connected to the second conductive pattern through a second via hole, and a micro light-emitting element between the pixel electrodes, the first conductive pattern contacting the semiconductor layer through a first contact hole and the first electrode pattern through a second contact hole, and the second conductive pattern overlapping the first electrode pattern to form a first capacitor therewith.Type: GrantFiled: February 12, 2019Date of Patent: April 16, 2024Assignee: Samsung Display Co., Ltd.Inventors: Kyung Bae Kim, Hyun Joon Kim, Kyung Hoon Chung, Mee Hye Jung, Min Jae Jeong, Jun Ki Jeong
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Publication number: 20240112626Abstract: A display device includes a scan write line, a PWM emission line, a PAM emission line, a sweep signal line, a first data line, a second data line, and a subpixel connected thereto, and including a light emitting element, a first pixel driver to supply a control current to a node according to the first data voltage in response to the PWM emission signal, a second pixel driver to generate a driving current according to the second data voltage in response to the PWM emission signal, and a third pixel driver to supply the driving current to the light emitting element according to the PAM emission signal and a voltage of the node, wherein the PWM emission signal includes a plurality of PWM pulses, the PAM emission signal includes a plurality of PAM pulses, and a number of the PWM pulses is greater than a number of the PAM pulses.Type: ApplicationFiled: December 4, 2023Publication date: April 4, 2024Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Sang Jin JEON, Jun Ki JEONG
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Publication number: 20240071299Abstract: 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: ApplicationFiled: October 30, 2023Publication date: February 29, 2024Inventors: Jung Hwan HWANG, Hyun Joon KIM, Kye Uk LEE, Jun Ki JEONG, Sang Jin JEON
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Patent number: 11777179Abstract: The present invention provides an electrode assembly, which can reduce resistance and improve a process property, a secondary battery including same, and a method for manufacturing same. For example, disclosed is an electrode assembly comprising: a first electrode plate having a first electrode tab attached thereto: a plurality of second electrode plates having second electrode tabs attached thereto, respectively, and a separator interposed between the first electrode plate and the plurality of second electrode plates, wherein the first electrode plate, the separator, and the plurality of second electrode plates are wound in a state of being stacked on one another, and the second electrode tabs are formed to be symmetrical to each other on the basis of a winding center thereof.Type: GrantFiled: April 22, 2019Date of Patent: October 3, 2023Assignee: Samsung SDI Co., Ltd.Inventors: Hyun Ki Jeong, Min Yeol Choi
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Publication number: 20230231242Abstract: A technical object to be solved according to the present disclosure is to provide a secondary battery which has reduced electrical resistance by directly connecting an electrode assembly to a can and/or a terminal without lead tabs and also has an increased battery capacity by removing lead tabs. To this end, the present disclosure provides a secondary battery comprising: a can; an electrode assembly accommodated in the can and including a first uncoated portion extending in a first direction and a second uncoated portion extending in a second direction opposite to the first direction; a first current collector plate electrically connected to the first uncoated portion of the electrode assembly; a first terminal portion coupled to the can and electrically connected to the first current collector plate; and a second terminal portion coupled to the can and electrically connected to the second uncoated portion of the electrode assembly.Type: ApplicationFiled: February 9, 2022Publication date: July 20, 2023Inventors: Myung Seob KIM, Gun Gue PARK, Won Sug LEE, Eui Kwang JEONG, Hyun Ki JEONG
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Publication number: 20230187707Abstract: The present invention relates to a secondary battery supporting the center part of an electrode assembly to enhance stability and reliability. For example, disclosed is a secondary battery comprising: an electrode assembly formed by winding a first electrode plate, a separator and a second electrode plate; a case for accommodating the electrode assembly; a current collection plate electrically connected to the first electrode plate and coupled to the upper part of the electrode assembly; and a core insulation member coupled to a winding center of the electrode assembly at the upper part of the current collection plate, wherein the core insulation member includes an insertion part having an inner hole, and a flange part extending in the horizontal direction from the upper end of the insertion part.Type: ApplicationFiled: June 23, 2021Publication date: June 15, 2023Inventors: Won Ik LEE, Gun Gue PARK, In Young JANG, Jung Hyun PARK, Joo Youn SHIN, Ju Shik UHM, Hyun Ki JEONG, Mun Sung KIM, Ye Eun SHIN
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Publication number: 20220294088Abstract: The present invention relates to an electrode assembly and a secondary battery including same. A jelly-roll-type electrode assembly comprises a positive electrode non-coated portion formed on a positive electrode plate, and a negative electrode non-coated portion formed on a negative electrode plate. The negative electrode non-coated portion includes a first negative electrode non-coated portion formed between the front end and the rear end of the negative electrode plate in the winding direction, and a second negative electrode non-coated portion formed at the rear end of the negative electrode plate. A negative electrode tab is disposed in the first negative electrode non-coated portion.Type: ApplicationFiled: August 11, 2020Publication date: September 15, 2022Inventor: Hyun Ki JEONG
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Publication number: 20220278376Abstract: An electrode assembly and a secondary battery are provided. In an exemplary embodiment, an electrode assembly includes: a first electrode plate having a first electrode tab attached thereto; a second electrode plate having at least one second electrode tab attached thereto; and a separator between the first electrode plate and the second electrode plate, the electrode assembly wound in a state in which the first electrode plate, the separator, and the second electrode plate are stacked, and the first electrode plate includes coating portions formed by coating an active material on first and second surfaces thereof, and a half-coating portion formed by coating the active material on only one of the first and second surfaces at a region corresponding to a leading edge, on the basis of a winding direction, where an active material of the second electrode plate begins.Type: ApplicationFiled: May 18, 2022Publication date: September 1, 2022Inventors: Jung Hyun PARK, June Hyoung PARK, Hyun Ki JEONG, Nobuyuki OYAGI
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Publication number: 20220278308Abstract: The present invention relates to an electrode assembly and a secondary battery comprising same, wherein by adjusting at least one of a loading level of a positive electrode coating layer and a loading level of a negative electrode coating layer, the negative electrode coating layer can be prevented from unnecessarily increasing in capacity, and a minimum capacity ratio of a positive electrode versus a negative electrode can be maintained in order to minimize lithium precipitation according to the number of winding turns of an electrode assembly.Type: ApplicationFiled: August 5, 2020Publication date: September 1, 2022Inventors: Hyun Ki JEONG, Dong Jin AN, Seung Young PARK
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Patent number: 11387494Abstract: An electrode assembly and a secondary battery are provided. In an exemplary embodiment, an electrode assembly includes: a first electrode plate having a first electrode tab attached thereto; a second electrode plate having at least one second electrode tab attached thereto; and a separator between the first electrode plate and the second electrode plate, the electrode assembly wound in a state in which the first electrode plate, the separator, and the second electrode plate are stacked, and the first electrode plate includes coating portions formed by coating an active material on first and second surfaces thereof, and a half-coating portion formed by coating the active material on only one of the first and second surfaces at a region corresponding to a leading edge, on the basis of a winding direction, where an active material of the second electrode plate begins.Type: GrantFiled: February 13, 2019Date of Patent: July 12, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Jung Hyun Park, June Hyoung Park, Hyun Ki Jeong, Nobuyuki Oyagi
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Publication number: 20220200059Abstract: An embodiment of the present invention relates to a secondary battery and addresses the technical problem of providing a secondary battery capable of improving structural stability.Type: ApplicationFiled: May 18, 2020Publication date: June 23, 2022Inventors: Hyun Ki JEONG, Sung Soo PARK
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Publication number: 20220131216Abstract: The present invention relates to a secondary battery in which an electrode assembly and a current collection plate may be easily welded and safety may be improved. As an embodiment, disclosed is a secondary battery comprising: an electrode assembly which is formed by winding a first electrode plate having a first electrode uncoated part, a separator, and a second electrode plate having a second electrode uncoated part, the first electrode uncoated part protruding upwards, and the second electrode uncoated part protruding downwards; and a first current collection plate which is electrically connected to the first electrode uncoated part and has a concave-convex part protruding downwards, wherein the width of the concave-convex part becomes wider from the center of the first current collection plate toward the outer periphery thereof.Type: ApplicationFiled: December 10, 2019Publication date: April 28, 2022Inventors: Jung Hyun PARK, Gun Gue PARK, June Hyoung PARK, Hyun Ki JEONG, Sung Soo PARK, Won Ik LEE
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Publication number: 20210344033Abstract: An embodiment of the present invention relates to a secondary battery, and with respect to a technical problem to be resolved, provided is a secondary battery which has an electrode tab provided by forming a notch on a non-coated part of an electrode plate of an electrode assembly, and which can enable a current collecting plate to come into surface contact with the electrode tab.Type: ApplicationFiled: September 24, 2019Publication date: November 4, 2021Inventors: Jung Hyun PARK, Hyun Ki JEONG, Nobuyuki OYAGI, Won Ik LEE, Young Chang KIM
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Publication number: 20210242545Abstract: The present invention provides an electrode assembly, which can reduce resistance and improve a process property, a secondary battery including same, and a method for manufacturing same. For example, disclosed is an electrode assembly comprising: a first electrode plate having a first electrode tab attached thereto: a plurality of second electrode plates having second electrode tabs attached thereto, respectively, and a separator interposed between the first electrode plate and the plurality of second electrode plates, wherein the first electrode plate, the separator, and the plurality of second electrode plates are wound in a state of being stacked on one another, and the second electrode tabs are formed to be symmetrical to each other on the basis of a winding center thereof.Type: ApplicationFiled: April 22, 2019Publication date: August 5, 2021Inventors: Hyun Ki JEONG, Min Yeol CHOI
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Publication number: 20210203044Abstract: An electrode assembly of a secondary battery has positive and negative electrode tabs aligned on a same line approximately at the center of the radius of the cross section of the electrode assembly, and are attached so as not to overlap each other in the longitudinal direction, thereby making it possible to improve winding roundness, and a positive electrode plate coating portion on a positive electrode plate, which is adjacent to the negative electrode tab, and which has no positive electrode tab formed thereon, thereby preventing precipitation of lithium during overcharging. The electrode assembly includes positive and negative electrode plates attached to the positive and negative electrodes tabs, respectively, and a separator interposed between the electrode plates, wherein the electrode plates and the separator are laminated and wound such that the positive and negative electrode tabs respectively protrude from the longitudinal upper and lower portions of the electrode assembly, respectively.Type: ApplicationFiled: July 31, 2018Publication date: July 1, 2021Inventors: Hyun Ki JEONG, Jung Hyun PARK, Nobuyuki OYAGI
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Publication number: 20210005936Abstract: The present invention relates to an electrode assembly and a secondary battery comprising same. Since an anode tab and a cathode tab are welded to a plurality of anode uncoated portions and a plurality of cathode uncoated portions of the electrode assembly to serve as a current collector plate, the present invention can prevent a roundness decrease, deformation, etc., which can be caused by expansion of a silicon-based anode active material that is applied for high capacitance, and at the same time, promotes high power output and low resistance.Type: ApplicationFiled: December 20, 2018Publication date: January 7, 2021Inventor: Hyun Ki JEONG
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Publication number: 20200343520Abstract: Disclosed is a secondary battery, which has a reinforced strength and can simplify the manufacturing process thereof. For example, one embodiment provides a secondary battery which comprises: an electrode assembly including a first electrode plate and a second electrode plate, wherein one of the first electrode plate and the second electrode plate includes a plurality of first tabs formed to protrude in one direction; a first current collection tab coupled to the first tabs; a case housing the electrode assembly; and a cap assembly coupled to the upper part of the case, wherein the first current collection tab is coupled to one of the cap assembly and the bottom surface of the case.Type: ApplicationFiled: October 8, 2018Publication date: October 29, 2020Inventors: Hyun Ki JEONG, Ho Jae LEE, Jung Hyun PARK, June Hyoung PARK, Sang Mi LEE, Won Ik LEE, Ye Ji CHA, Nobuyuki OYAGI
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Publication number: 20200235369Abstract: An embodiment of the present invention relates to a secondary battery, wherein a technical problem to be solved is to provide a secondary battery which has low resistance and can output high power without loss of capacity, and can prevent deformation or cracking of an electrode assembly. To this end, the present invention provides a secondary battery comprising: a cylindrical can; an electrode assembly which is received in the cylindrical can and includes multiple first tabs extending in a first direction which is a longitudinal direction of the cylindrical can, and multiple second tabs extending in a second direction opposite to the first direction; a cap assembly for sealing the cylindrical can; a first current collecting structure which electrically connects the multiple first tabs to the cap assembly while being insulated from the cylindrical can; and a second current collecting structure for electrically connecting the multiple second tabs to the cylindrical can.Type: ApplicationFiled: July 31, 2018Publication date: July 23, 2020Inventors: Hyun Ki JEONG, Ho Jae LEE, Jung Hyun PARK, June Hyoung PARK, Nobuyuki OYAGI, Sang Mi LEE, Won Ik LEE, Ye Ji CHA
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Publication number: 20190252732Abstract: An electrode assembly and a secondary battery are provided. In an exemplary embodiment, an electrode assembly includes: a first electrode plate having a first electrode tab attached thereto; a second electrode plate having at least one second electrode tab attached thereto; and a separator between the first electrode plate and the second electrode plate, the electrode assembly wound in a state in which the first electrode plate, the separator, and the second electrode plate are stacked, and the first electrode plate includes coating portions formed by coating an active material on first and second surfaces thereof, and a half-coating portion formed by coating the active material on only one of the first and second surfaces at a region corresponding to a leading edge, on the basis of a winding direction, where an active material of the second electrode plate begins.Type: ApplicationFiled: February 13, 2019Publication date: August 15, 2019Inventors: Jung Hyun PARK, June Hyoung PARK, Hyun Ki JEONG, Nobuyuki OYAGI