Patents by Inventor Min Ji Lee
Min Ji Lee 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).
-
Publication number: 20240124323Abstract: A precursor for a positive electrode active material and a method of making the same are disclosed herein. In some embodiments, a method includes forming precursor seeds for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to a reaction solution, and growing precursor particles for a positive electrode active material from the precursor seeds by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to the reaction solution containing the precursor seeds, wherein feed rates for the transition metal aqueous solution and the ammonium cationic complexing agent to grow the precursor particles are two or more times greater than feed rates for the transition metal aqueous solution and the ammonium cationic complexing agent to grow the precursor seeds.Type: ApplicationFiled: February 15, 2022Publication date: April 18, 2024Applicant: LG Chem, Ltd.Inventors: Seong Ji Ye, Min Joon Lee, Yoon Bin Park
-
Publication number: 20240128490Abstract: The present invention provides an apparatus for manufacturing a secondary battery, which includes a pressing part configured to press a stack in which electrodes and separators are alternately disposed, wherein the pressing part includes: a main pressing part configured to press an entire surface of the stack; and a sub pressing part including a drum part configured to press a partial surface of the stack, on which an edge part of an electrode active material layer provided on each of the electrodes is disposed, on the entire surface, wherein the drum part includes: a body part having a rotational shaft; and an elastic part provided on an outer circumferential surface of the body part and configured to press the partial surface of the stack.Type: ApplicationFiled: September 15, 2022Publication date: April 18, 2024Applicant: LG Energy Solution, Ltd.Inventors: Min Ha Yee, Ki Beom Park, Eui Seob Song, Zheng Hua Li, Hyo Joon Lee, Eun Ji Song
-
Publication number: 20240128605Abstract: Provided are an electrode assembly, a battery, and a battery pack and vehicle including the same. An electrode assembly, in which a first electrode, a second electrode, and a separator interposed therebetween are wound about an axis to define a core and an outer circumferential surface. At least one of the first electrode and the second electrode includes, at a long side end portion, an uncoated portion exposed beyond the separator in a direction of the axis. At least a part of the uncoated portion is bent in a radial direction of the electrode assembly to define a bent surface region having overlapping layers of the uncoated portion. The bent surface region includes a welding target region having a number of the overlapping layers of the uncoated portion, and the welding target region extends along a radial direction of the electrode assembly.Type: ApplicationFiled: February 18, 2022Publication date: April 18, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Min-Woo KIM, Do-Gyun KIM, Kyung-Wook CHO, Geon-Woo MIN, Min-Ki JO, Jae-Woong KIM, Kwang-Su HWANGBO, Hae-Jin LIM, Su-Ji CHOI, Jae-Won LIM, Hak-Kyun KIM, Je-Jun LEE, Ji-Min JUNG
-
Patent number: 11961445Abstract: A data processing circuit according to an embodiment may include a reception circuit configured to receive image data including grayscale values associated with pixels disposed in a display panel. The data processing circuit may include a compensation circuit configured to calculate a final compensation value by multiplying a representative compensation value of each area and a global gain, and to produce converted image data. The data processing circuit may include a memory storing a representative compensation value associated with a grayscale value of each area of the display panel, and may include a transmission circuit configured to transmit the converted image data to a data driving circuit.Type: GrantFiled: November 29, 2021Date of Patent: April 16, 2024Assignee: LX SEMICON CO., LTD.Inventors: Jun Young Park, Do Yeon Kim, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ji Won Lee
-
Patent number: 11956998Abstract: A display device includes: a first substrate including a pixel area and a transmissive area; a thin-film transistor on the first substrate; a planarization layer on the thin-film transistor; a first light emitting electrode on the planarization layer; a bank covering a part of the first light emitting electrode; a light emitting layer on the first light emitting electrode; and a second light emitting electrode on the light emitting layer and the bank. The transmissive area includes a transmissive hole penetrating the bank and the planarization layer.Type: GrantFiled: January 4, 2023Date of Patent: April 9, 2024Assignee: Samsung Display Co., Ltd.Inventors: Se Wan Son, Moo Soon Ko, Rae Young Gwak, Jin Seock Ma, Min Jeong Park, Ki Bok Yoo, So La Lee, Jin Goo Jung, Jong Won Chae, Ye Ji Han
-
Publication number: 20240113332Abstract: The present invention relates to a lithium secondary battery which includes a positive electrode, a negative electrode, a separator disposed between the positive electrode and the negative electrode, and an electrolyte solution, wherein a patterned gel polymer electrolyte layer is included on one surface or both surfaces of at least one structure of the positive electrode, the negative electrode, or the separator.Type: ApplicationFiled: December 12, 2023Publication date: April 4, 2024Applicant: LG Energy Solution, Ltd.Inventors: Joo Sung Lee, Min Ji Kim, Ho June Kim
-
Patent number: 11949125Abstract: A separator for an electrochemical device including a porous polymer substrate and a porous coating layer on at least one side of the porous polymer substrate. The porous coating layer includes first binder particles, second binder particles, and inorganic particles. The inorganic particles are mostly dispersed in a first surface region of the porous coating layer, and the second binder particles are mostly dispersed in a second surface region of the porous polymer substrate, in which the first surface region faces the porous polymer substrate and the second surface region is an opposite surface region to the first surface region. The inorganic particles have a larger weight per particle than each respective weight per particle of the first and second binder particles.Type: GrantFiled: September 6, 2023Date of Patent: April 2, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Min Ji Kim, Seung Hyun Lee, Kyung Ryun Ka
-
Publication number: 20240097218Abstract: Methods and systems for executing tracking and monitoring manufacturing data of a battery are disclosed. One method includes: receiving, by a server system, sensing data of the battery from a sensing system; generating, by the server system, mapping data based on the sensing data; generating, by the server system, identification data of the battery based on the sensing data; generating, by the server system, monitoring data of the battery based on the sensing data, the identification data, and the mapping data; and generating, by the server system, display data for displaying a simulated electrode of the battery on a graphical user interface based on the monitoring data of the battery.Type: ApplicationFiled: August 31, 2023Publication date: March 21, 2024Inventors: Min Kyu Sim, Jong Seok Park, Min Su Kim, Jae Hwan Lee, Ki Deok Han, Eun Ji Jo, Su Wan Park, Gi Yeong Jeon, June Hee Kim, Wi Dae Park, Dong Min Seo, Seol Hee Kim, Dong Yeop Lee, Jun Hyo Su, Byoung Eun Han, Seung Huh
-
Publication number: 20240083767Abstract: A precursor for a positive electrode active material and a method of making the same are disclosed herein. In some embodiments a method includes forming precursor seeds for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to a reaction solution, and growing precursor particles for a positive electrode active material by a co-precipitation reaction while supplying a transition metal aqueous solution, an ammonium cationic complexing agent, and a basic compound to the reaction solution containing the precursor seeds, wherein the co-precipitation reaction to grow the precursor particles proceeds while continuously increasing feed rates of the transition metal aqueous solution and the ammonium cationic complexing agent.Type: ApplicationFiled: February 18, 2022Publication date: March 14, 2024Applicant: LG Chem, Ltd.Inventors: Min Joon Lee, Seong Ji Ye, Seung Beom Cho, Jang Soo Lee, Yoon Bin Park
-
Publication number: 20240079724Abstract: A separator for an electrochemical device including a porous polymer substrate and a porous coating layer on at least one side of the porous polymer substrate. The porous coating layer includes first binder particles, second binder particles, and inorganic particles. The inorganic particles are mostly dispersed in a first surface region of the porous coating layer, and the second binder particles are mostly dispersed in a second surface region of the porous polymer substrate, in which the first surface region faces the porous polymer substrate and the second surface region is an opposite surface region to the first surface region. The inorganic particles have a larger weight per particle than each respective weight per particle of the first and second binder particles.Type: ApplicationFiled: September 6, 2023Publication date: March 7, 2024Applicant: LG ENERGY SOLUTION, LTD.Inventors: Min Ji KIM, Seung Hyun LEE, Kyung Ryun KA
-
Publication number: 20240081079Abstract: Provided is a semiconductor device. The semiconductor device includes a substrate; a first interlayer insulating layer, on the substrate, comprising a first interconnection; a common source plate on the first interlayer insulating layer; a conductive layer extending in a first direction on the common source plate; a ferroelectric layer on one sidewall of the conductive layer; a channel layer on the ferroelectric layer; a first conductive pillar, on the channel layer, penetrating the common source plate and being connected to the first interconnection; and a second conductive pillar, on the channel layer, spaced apart from the first conductive pillar in the first direction and connected to the common source plate, the ferroelectric layer and the channel layer between the common source plate and the first conductive pillar.Type: ApplicationFiled: June 26, 2023Publication date: March 7, 2024Applicant: Samsung Electronics Co., Ltd.Inventors: Young Ji NOH, Jong Ho WOO, Min Jun LEE
-
Publication number: 20240081001Abstract: A display device includes a display panel having a folding axis extending in a first direction; and a panel supporter disposed on a surface of the display panel. The panel supporter includes a first layer including a first base resin and first fiber yarns extending in the first direction and dispersed in the first base resin, a second layer disposed on the first layer, the second layer including a second base resin and second fiber yarns extending in a second direction intersecting the first direction and dispersed in the second base resin, and a third layer disposed on the second layer, the third layer including a third base resin and third fiber yarns extending in the first direction and dispersed in the third base resin.Type: ApplicationFiled: May 1, 2023Publication date: March 7, 2024Applicant: Samsung Display Co., LTD.Inventors: Soh Ra HAN, Yong Hyuck LEE, Hong Kwan LEE, Hyun Jun CHO, Min Ji KIM, Sung Woo EO, Eun Gil CHOI, Sang Woo HAN
-
Publication number: 20240066068Abstract: The present disclosure relates to a composition for skin improvement and a pharmaceutical composition for preventing or treating an inflammatory skin disease, the compositions including an umbilical cord-derived mesenchymal stem cell culture medium as an active ingredient. The compositions exhibit a wound relief, wrinkle improvement, regeneration, elasticity increase, moisturizing, barrier strengthening, anti-inflammatory or antioxidant effect, and thus can be effectively used as a cosmetic composition for skin improvement or a pharmaceutical composition for preventing or treating an inflammatory skin disease.Type: ApplicationFiled: November 5, 2021Publication date: February 29, 2024Applicant: HANS PHARMA CO., LTD.Inventors: Na Eun LEE, Jung Tae LEE, Geun Young KIM, Jin Young KIM, Dong Wook KIM, Min Ji LEE, Ro Un LEE
-
Publication number: 20240071278Abstract: A display apparatus having a mura compensation function includes a mura memory in which compensation data corresponding to coefficient values of a mura compensation equation is stored; and a mura compensation circuit configured to perform mura compensations on display data by using the mura compensation equation to which the compensation data has been applied, wherein the coefficient values are set so that the mura compensation equation has been fit to have a curve that satisfies known difference values of selected gray levels, a first estimation difference value of a first estimation gray level higher than the selected gray levels, and a second estimation difference value of a second estimation gray level lower than the selected gray levels, and wherein the compensation data comprises the coefficient values of the mura compensation equation in which all of the known difference values of the selected gray levels, the first estimation difference value, and the second estimation difference value have a differenType: ApplicationFiled: October 25, 2023Publication date: February 29, 2024Applicant: LX SEMICON CO., LTD.Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE, Jung Hyun KIM, Suk Ju KANG, Sung In CHO
-
Publication number: 20230395011Abstract: A voltage drop compensation system and a display driving device for compensating for a voltage drop of a display panel. The voltage drop compensation system generates a voltage drop compensation value for each of a plurality of regions into which a test image of a panel is divided, and the display driving device compensates for a voltage drop for each region of image data using the voltage drop compensation value.Type: ApplicationFiled: August 23, 2023Publication date: December 7, 2023Applicant: LX Semicon Co., Ltd.Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ju Hyoung LIM, Ji Won LEE
-
Patent number: 11837141Abstract: The present disclosure discloses a display driving apparatus having a mura compensation function and a method of compensating for mura of the same. To this end, the display driving apparatus may include a mura memory in which compensation data corresponding to coefficient values of a mura compensation equation is stored, and a mura compensation circuit configured to perform mura compensations on display data by using the mura compensation equation to which the compensation data has been applied.Type: GrantFiled: October 12, 2022Date of Patent: December 5, 2023Assignee: LX SEMICON CO., LTD.Inventors: Jun Young Park, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ji Won Lee, Jung Hyun Kim, Suk Ju Kang, Sung In Cho
-
Patent number: 11776451Abstract: A voltage drop compensation system and a display driving device for compensating for a voltage drop of a display panel. The voltage drop compensation system generates a voltage drop compensation value for each of a plurality of regions into which a test image of a panel is divided, and the display driving device compensates for a voltage drop for each region of image data using the voltage drop compensation value.Type: GrantFiled: June 28, 2022Date of Patent: October 3, 2023Assignee: LX SEMICON CO., LTD.Inventors: Jun Young Park, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ju Hyoung Lim, Ji Won Lee
-
Patent number: 11663951Abstract: Provided is a technology for resolving a mura phenomenon in a display panel to which gamma is applied, in which demura compensation values are generated in a log domain to improve a problem of nonlinearity due to gamma.Type: GrantFiled: November 19, 2021Date of Patent: May 30, 2023Assignee: LX SEMICON CO., LTD.Inventors: Jun Young Park, Do Yeon Kim, Min Ji Lee, Gang Won Lee, Young Kyun Kim, Ji Won Lee
-
Publication number: 20230118591Abstract: The present disclosure discloses a display driving apparatus having a mura compensation function and a method of compensating for mura of the same. To this end, the display driving apparatus may include a mura memory in which compensation data corresponding to coefficient values of a mura compensation equation is stored, and a mura compensation circuit configured to perform mura compensations on display data by using the mura compensation equation to which the compensation data has been applied.Type: ApplicationFiled: October 12, 2022Publication date: April 20, 2023Applicant: LX Semicon Co., Ltd.Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE, Jung Hyun KIM, Suk Ju KANG, Sung In CHO
-
Publication number: 20230073179Abstract: The present disclosure discloses an apparatus and method for providing compensation information, which compress the compensation information for demura and a display driving apparatus for solving a defect in a screen by using compressed compensation information. The apparatus for providing compensation information includes a compensation value provision unit configured to provide compensation values of pixels and a compression unit configured to perform compression on the compensation values for each block of a screen.Type: ApplicationFiled: September 6, 2022Publication date: March 9, 2023Applicant: LX Semicon Co., Ltd.Inventors: Jun Young PARK, Min Ji LEE, Gang Won LEE, Young Kyun KIM, Ji Won LEE, Suk Ju KANG, Joo Sung CHOI