Patents by Inventor Joon Suk Lee
Joon Suk 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).
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Publication number: 20240101810Abstract: The present invention relates to a composition for forming a composite polymer film, a method for preparing the composition for forming a composite polymer film, a composite polymer film and a method for preparing the composite polymer film. The composition for forming a composite polymer film comprises: a fluorine-based polymer solution comprising a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the fluorine-based polymer solution. The method for preparing the composition for forming a composite polymer film comprises the steps of: preparing a fluorine-based polymer solution comprising a fluorine-based polymer; and dispersing polyvinylidene fluoride nanoparticles in the fluorine-based polymer solution. The composite polymer film comprises: a polymer matrix formed from a fluorine-based polymer; and polyvinylidene fluoride nanoparticles dispersed in the polymer matrix.Type: ApplicationFiled: September 4, 2020Publication date: March 28, 2024Applicants: KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGY, KOREA RESEARCH INSTITUTE OF CHEMICAL TECHNOLOGYInventors: Eun Ho SOHN, Shin Hong YOOK, Hong Suk KANG, In Joon PARK, Sang Goo LEE, Soo Bok LEE, Won Wook SO, Hyeon Jun HEO, Dong Je HAN, Seon Woo KIM
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Patent number: 11939282Abstract: The present disclosure provides a method for decomposing a phenolic by-product, the method including: a step S10 of injecting and mixing a bisphenol A by-product produced in a bisphenol A production process, a mixed by-product stream of phenol by-products produced in a phenol production process, a decomposition apparatus side discharge stream, and a process water stream in a mixing apparatus; a step S20 of injecting a mixing apparatus discharge stream discharged from the mixing apparatus into a phase separation apparatus and phase-separating the mixing apparatus discharge stream into an oil-phase stream and a liquid-phase stream; a step S30 of feeding the oil-phase stream, which is phase-separated in the step S20 and discharged from the phase separation apparatus, to a decomposition apparatus to decompose the oil-phase stream; and a step S40 of circulating the decomposition apparatus side discharge stream obtained by the decomposition in the step S30 to the mixing apparatus in the step S10.Type: GrantFiled: August 11, 2020Date of Patent: March 26, 2024Assignee: LG Chem, Ltd.Inventors: Min Suk Kang, Sang Beom Lee, Joon Ho Shin
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Publication number: 20230422579Abstract: Disclosed is a light emitting display device including a substrate, an auxiliary power electrode located on the substrate, a first protection layer located on the auxiliary power electrode, a second protection layer located between the first protection layer and the auxiliary power electrode, a contact portion configured to expose a part of the auxiliary power electrode through the first protection layer and the second protection layer, an eaves structure portion located at the contact portion, and a cover metal pattern located on the eaves structure portion.Type: ApplicationFiled: June 22, 2023Publication date: December 28, 2023Applicant: LG DISPLAY CO., LTD.Inventor: Joon Suk LEE
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Patent number: 11327592Abstract: A display device that is capable of being manufactured through a simplified process and at reduced cost is disclosed. The display device is configured such that a plurality of grouped cathode electrodes and a plurality of grouped black matrices intersect each other in the state in which an encapsulation unit is disposed therebetween in order to form a touch sensor, so that a process of forming first and second touch electrodes is omitted and a separate adhesion process becomes unnecessary, whereby structural simplification is achieved while costs are reduced.Type: GrantFiled: June 25, 2021Date of Patent: May 10, 2022Assignee: LG Display Co., Ltd.Inventors: Saemleenuri Lee, Joon-Suk Lee, Do-Hyung Kim, Seung-Han Paek, Seong-Woo Park, Seung-Won Yoo
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Publication number: 20210325990Abstract: A display device that is capable of being manufactured through a simplified process and at reduced cost is disclosed. The display device is configured such that a plurality of grouped cathode electrodes and a plurality of grouped black matrices intersect each other in the state in which an encapsulation unit is disposed therebetween in order to form a touch sensor, so that a process of forming first and second touch electrodes is omitted and a separate adhesion process becomes unnecessary, whereby structural simplification is achieved while costs are reduced.Type: ApplicationFiled: June 25, 2021Publication date: October 21, 2021Inventors: Saemleenuri Lee, Joon-Suk Lee, Do-Hyung Kim, Seung-Han Paek, Seong-Woo Park, Seung-Won Yoo
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Patent number: 11073928Abstract: A display device that is capable of being manufactured through a simplified process and at reduced cost is disclosed. The display device is configured such that a plurality of grouped cathode electrodes and a plurality of grouped black matrices intersect each other in the state in which an encapsulation unit is disposed therebetween in order to form a touch sensor, so that a process of forming first and second touch electrodes is omitted and a separate adhesion process becomes unnecessary, whereby structural simplification is achieved while costs are reduced.Type: GrantFiled: October 29, 2019Date of Patent: July 27, 2021Assignee: LG Display Co., Ltd.Inventors: Saemleenuri Lee, Joon-Suk Lee, Do-Hyung Kim, Seung-Han Paek, Seong-Woo Park, Seung-Won Yoo
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Patent number: 10978541Abstract: A method of manufacturing an organic light emitting display device, the method includes forming a thin film transistor (TFT) in an active area of a substrate and forming a signal pad and a first pad electrode, connected to the signal pad, in a pad area of the substrate, forming a passivation layer on the TFT and the first pad electrode, forming a planarization layer on the passivation layer, removing a certain region of the passivation layer to simultaneously form an area, through which the TFT is exposed to the outside, and an area through which the first pad electrode is exposed to the outside, forming a first anode electrode connected to the TFT, a first auxiliary electrode spaced apart from the first anode electrode, and a second pad electrode that is connected to the first pad electrode and covers the exposed first pad electrode; and forming a second anode electrode, covering a top and a side surface of the first anode electrode, and a second auxiliary electrode covering a top and a side surface of the fType: GrantFiled: September 14, 2018Date of Patent: April 13, 2021Assignee: LG DISPLAY CO., LTD.Inventors: Jin-Hee Jang, Se June Kim, Joon Suk Lee, So Jung Lee, Jong Hyeok Im, Jae Sung Lee
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Patent number: 10854844Abstract: An organic light-emitting display device characterized by improved reliability is disclosed. The organic light-emitting display device is configured such that each of an organic encapsulation layer, which is disposed on a light-emitting element, and an upper inorganic encapsulation layer, which is disposed on the organic encapsulation layer, are divided into a plurality of parts. Even when cracks are formed in a subpixel due to an external impact or when external moisture or oxygen permeates into the subpixel, therefore, it is possible to prevent the cracks, the moisture, or the oxygen from diffusing to an adjacent subpixel, whereby the reliability and lifespan of the display device are improved.Type: GrantFiled: October 25, 2019Date of Patent: December 1, 2020Assignee: LG Display Co., Ltd.Inventors: Seung-Han Paek, Joon-Suk Lee, Seong-Woo Park, Saemleenuri Lee, Do-Hyung Kim, Seung-Won Yoo
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Publication number: 20200161583Abstract: An organic light-emitting display device characterized by improved reliability is disclosed. The organic light-emitting display device is configured such that each of an organic encapsulation layer, which is disposed on a light-emitting element, and an upper inorganic encapsulation layer, which is disposed on the organic encapsulation layer, are divided into a plurality of parts. Even when cracks are formed in a subpixel due to an external impact or when external moisture or oxygen permeates into the subpixel, therefore, it is possible to prevent the cracks, the moisture, or the oxygen from diffusing to an adjacent subpixel, whereby the reliability and lifespan of the display device are improved.Type: ApplicationFiled: October 25, 2019Publication date: May 21, 2020Inventors: Seung-Han PAEK, Joon-Suk LEE, Seong-Woo PARK, Saemleenuri LEE, Do-Hyung KIM, Seung-Won YOO
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Publication number: 20200161382Abstract: A display device that is capable of being manufactured through a simplified process and at reduced cost is disclosed. The display device is configured such that a plurality of grouped cathode electrodes and a plurality of grouped black matrices intersect each other in the state in which an encapsulation unit is disposed therebetween in order to form a touch sensor, so that a process of forming first and second touch electrodes is omitted and a separate adhesion process becomes unnecessary, whereby structural simplification is achieved while costs are reduced.Type: ApplicationFiled: October 29, 2019Publication date: May 21, 2020Inventors: Saemleenuri LEE, Joon-Suk LEE, Do-Hyung KIM, Seung-Han PAEK, Seong-Woo PARK, Seung-Won YOO
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Patent number: 10516011Abstract: Provided are a display device and a method of manufacturing the same. A display device includes: a lower substrate, a first over-coat layer on the lower substrate, the first over-coat layer including a first contact hole, a thin film transistor between the lower substrate and the first over-coat layer, the thin film transistor including a drain electrode including an end portion overlapping the first contact hole, the end portion of the drain electrode including an under-cut region, a lower passivation layer between the thin film transistor and the first over-coat layer, the lower passivation layer partially exposing a side surface of the end portion of the drain electrode, and a light-emitting structure on the first over-coat layer, the light-emitting structure being electrically connected to the thin film transistor through the first contact hole.Type: GrantFiled: November 29, 2017Date of Patent: December 24, 2019Assignee: LG Display Co., Ltd.Inventors: Joon-Suk Lee, Se-June Kim
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Publication number: 20190386024Abstract: A vertical memory device includes a first structure having a lower semiconductor pattern structure filling a recess on a substrate and protruding from an upper surface of the substrate in a first direction substantially perpendicular to the upper surface of the substrate, the lower semiconductor pattern structure including a first undoped semiconductor pattern, a doped semiconductor pattern, and a second undoped semiconductor pattern sequentially stacked, and a lower surface of the doped semiconductor pattern being lower than the upper surface of the substrate, and an upper semiconductor pattern extending in the first direction on the lower semiconductor pattern structure, and a plurality of gate electrodes surrounding a sidewall of the first structure, the plurality of gate electrodes being at a plurality of levels, respectively, so as to be spaced apart from each other in the first direction.Type: ApplicationFiled: August 29, 2019Publication date: December 19, 2019Inventors: Joon-Suk LEE, Hong-Suk KIM, Jae-Young AHN, Han-Jin LIM
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Patent number: 10454068Abstract: There are provided an organic light emitting display and a method of manufacturing the organic light emitting display. The organic light emitting display includes a lower substrate including a plurality of subpixel regions, a thin film transistor formed on the lower substrate, an organic light emitting element formed on the thin film transistor, an encapsulation unit for covering the organic light emitting element, a spacer formed on the encapsulation unit, an upper substrate disposed to face the lower substrate, and a desiccant between the lower substrate and the upper substrate. Various embodiments of the invention provide an organic light emitting display that enhances a viewing angle by minimizing a cell gap and minimizing a distortion of light, minimizes penetration of water or oxygen from the outside, and realizes a high resolution display by enhancing an aperture ratio, and a method of manufacturing the organic light emitting display.Type: GrantFiled: December 26, 2013Date of Patent: October 22, 2019Assignee: LG DISPLAY CO., LTD.Inventors: Joon Suk Lee, Se June Kim
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Patent number: 10403638Abstract: A vertical memory device includes a first structure having a lower semiconductor pattern structure filling a recess on a substrate and protruding from an upper surface of the substrate in a first direction substantially perpendicular to the upper surface of the substrate, the lower semiconductor pattern structure including a first undoped semiconductor pattern, a doped semiconductor pattern, and a second undoped semiconductor pattern sequentially stacked, and a lower surface of the doped semiconductor pattern being lower than the upper surface of the substrate, and an upper semiconductor pattern extending in the first direction on the lower semiconductor pattern structure, and a plurality of gate electrodes surrounding a sidewall of the first structure, the plurality of gate electrodes being at a plurality of levels, respectively, so as to be spaced apart from each other in the first direction.Type: GrantFiled: June 1, 2017Date of Patent: September 3, 2019Assignee: SAMSUNG ELECTRONICS CO., LTD.Inventors: Joon-Suk Lee, Hong-Suk Kim, Jae-Young Ahn, Han-Jin Lim
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Publication number: 20190027551Abstract: A method of manufacturing an organic light emitting display device, the method includes forming a thin film transistor (TFT) in an active area of a substrate and forming a signal pad and a first pad electrode, connected to the signal pad, in a pad area of the substrate, forming a passivation layer on the TFT and the first pad electrode, forming a planarization layer on the passivation layer, removing a certain region of the passivation layer to simultaneously form an area, through which the TFT is exposed to the outside, and an area through which the first pad electrode is exposed to the outside, forming a first anode electrode connected to the TFT, a first auxiliary electrode spaced apart from the first anode electrode, and a second pad electrode that is connected to the first pad electrode and covers the exposed first pad electrode; and forming a second anode electrode, covering a top and a side surface of the first anode electrode, and a second auxiliary electrode covering a top and a side surface of the fType: ApplicationFiled: September 14, 2018Publication date: January 24, 2019Applicant: LG DISPLAY CO., LTD.Inventors: Jin-Hee JANG, Se June KIM, Joon Suk LEE, So Jung LEE, Jong Hyeok IM, Jae Sung LEE
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Patent number: 10109700Abstract: Discussed are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device according to an embodiment includes a substrate including an active area and a pad area, a thin film transistor (TFT) in the active area of the substrate, an anode electrode on the TFT, an organic emission layer on the anode electrode, a cathode electrode on the organic emission layer, an auxiliary electrode connected to the cathode electrode and disposed on the same layer as the anode electrode, a signal pad in the pad area of the substrate, and a pad electrode connected to the signal pad to cover a top of the signal pad for preventing the top of the signal pad from being corroded. The TFT includes a gate electrode. The signal pad is disposed on the same layer as the gate electrode.Type: GrantFiled: May 27, 2016Date of Patent: October 23, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Jin-Hee Jang, Se June Kim, Joon Suk Lee, So Jung Lee, Jong Hyeok Im, Jae Sung Lee
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Patent number: 10032843Abstract: Discussed is an organic light emitting display device in which an auxiliary electrode is disposed on an overcoating layer, and thus, an aperture ratio is enhanced. The organic light emitting display device can include a first overcoating layer disposed on a driving transistor and a supply electrode, a connection electrode disposed on the first overcoating layer and connected to the supply electrode through the second contact hole, a first electrode disposed on the first overcoating layer and connected to the driving transistor through the first contact hole, a second overcoating layer disposed on the first overcoating layer, and an auxiliary electrode disposed on the second overcoating layer and connected to the connection electrode. The first overcoating layer may include a first contact hole and a second contact hole. The second overcoating layer may cover the first and second contact holes and may not cover a portion of the first electrode.Type: GrantFiled: September 10, 2015Date of Patent: July 24, 2018Assignee: LG DISPLAY CO., LTD.Inventors: Jae Sung Lee, Joon Suk Lee
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Publication number: 20180151647Abstract: Provided are a display device and a method of manufacturing the same. A display device includes: a lower substrate, a first over-coat layer on the lower substrate, the first over-coat layer including a first contact hole, a thin film transistor between the lower substrate and the first over-coat layer, the thin film transistor including a drain electrode including an end portion overlapping the first contact hole, the end portion of the drain electrode including an under-cut region, a lower passivation layer between the thin film transistor and the first over-coat layer, the lower passivation layer partially exposing a side surface of the end portion of the drain electrode, and a light-emitting structure on the first over-coat layer, the light-emitting structure being electrically connected to the thin film transistor through the first contact hole.Type: ApplicationFiled: November 29, 2017Publication date: May 31, 2018Applicant: LG Display Co., Ltd.Inventors: Joon-Suk Lee, Se-June Kim
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Publication number: 20180122822Abstract: A vertical memory device includes a first structure having a lower semiconductor pattern structure filling a recess on a substrate and protruding from an upper surface of the substrate in a first direction substantially perpendicular to the upper surface of the substrate, the lower semiconductor pattern structure including a first undoped semiconductor pattern, a doped semiconductor pattern, and a second undoped semiconductor pattern sequentially stacked, and a lower surface of the doped semiconductor pattern being lower than the upper surface of the substrate, and an upper semiconductor pattern extending in the first direction on the lower semiconductor pattern structure, and a plurality of gate electrodes surrounding a sidewall of the first structure, the plurality of gate electrodes being at a plurality of levels, respectively, so as to be spaced apart from each other in the first direction.Type: ApplicationFiled: June 1, 2017Publication date: May 3, 2018Inventors: Joon-Suk LEE, Hong-Suk KIM, Jae-Young AHN, Han-Jin LIM
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Patent number: 9859345Abstract: An organic light emitting display device comprises a partition wall formed on a bank that covers a portion of an auxiliary electrode. The organic light emitting display device includes a first electrode, an auxiliary electrode, a first bank, and a partition wall. The first electrode may be connected to a driving transistor, and the auxiliary electrode may be disposed on the same layer as the first electrode. The first bank may cover a portion of the first electrode and a portion of the auxiliary electrode. A portion of a bottom surface of the partition wall may contact a top surface of the first bank, and the other portion except the portion of the bottom surface may be disposed on the auxiliary electrode.Type: GrantFiled: September 16, 2015Date of Patent: January 2, 2018Assignee: LG Display Co., Ltd.Inventors: Joon Suk Lee, Jae Sung Lee