Patents by Inventor Chang-Hun Lee

Chang-Hun 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: 20200321400
    Abstract: A display device and method of manufacturing same includes: a display panel having a pixel area and a peripheral area adjacent to the pixel area, a light control layer disposed on the display panel and at least partially overlapping the pixel area, a light blocking portion at least partially overlapping the peripheral area, and a protective layer disposed between the light control layer and the light blocking portion.
    Type: Application
    Filed: March 9, 2020
    Publication date: October 8, 2020
    Inventors: Keunwoo PARK, Min-Jae Kim, Min-Hee Kim, Taehoon Kim, DoKyung Youn, Chang-Hun Lee
  • Patent number: 10768523
    Abstract: Disclosed are a pellicle for an extreme ultraviolet (EUV) lithography, which is excellent in transmittance of EUV exposure light and mechanical strength, and a method of fabricating the same. The pellicle includes a support layer pattern; a buried oxide layer pattern formed on the support layer pattern; and a pellicle layer provided being supported by the buried oxide layer pattern. The pellicle may further include a reinforcement layer for reinforcing the mechanical strength of the pellicle layer, an auxiliary layer for additionally supplementing the mechanical strength of the reinforcement layer, and a heat dissipation layer for dissipating heat of the pellicle layer.
    Type: Grant
    Filed: March 8, 2018
    Date of Patent: September 8, 2020
    Assignee: S&S TECH CO., LTD.
    Inventors: Kee-Soo Nam, Chang-Hun Lee, Ju-Hee Hong, Chul-Kyun Park
  • Publication number: 20200257162
    Abstract: A display panel includes an upper display substrate and a lower display substrate. The upper display substrate includes a base substrate, a light shielding pattern, and including an opening part defined therein which corresponds to the pixel region, a color filter overlapped with the pixel region, an encapsulation layer disposed in lower sides of the light shielding pattern and the color filter, a partition wall disposed in a lower side of the encapsulation layer, overlapped with the light shielding region, and including a partition wall opening part defined therein which corresponds to the pixel region, and a quantum dot layer disposed inside the partition wall opening part. The partition wall includes a first layer directly disposed on the bottom surface of the encapsulation layer and a second layer directly disposed on a lower side of the first layer and having a larger optical density than the first layer.
    Type: Application
    Filed: November 18, 2019
    Publication date: August 13, 2020
    Inventors: CHANG-HUN LEE, Min-Jae KIM, Min-Hee KIM, Taehoon KIM, Kyunghae PARK, Joon-Hyung PARK, Danbi YANG
  • Patent number: 10723949
    Abstract: Disclosed is a liquid crystal composition including at least one compound selected from the group consisting of a liquid crystal compound expressed by Formula 1-1 and a liquid crystal compound expressed by Formula 1-2; at least one compound selected from the group consisting of a self-alignment compound expressed by Formula 2-1 and a self-alignment compound expressed by Formula 2-2; and at least one compound selected from the group consisting of a reactive mesogen expressed by Formula 3-1, a reactive mesogen expressed by Formula 3-2, a reactive mesogen expressed by Formula 3-3, a reactive mesogen expressed by Formula 3-4, and a reactive mesogen expressed by Formula 3-5. The liquid crystal composition also has negative dielectric anisotropy.
    Type: Grant
    Filed: October 22, 2018
    Date of Patent: July 28, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sun Young Kwon, Min-Hee Kim, Ji Eun Jang, Il Joon Kang, Jong Ho Son, Keun Chan Oh, Chang-Hun Lee
  • Patent number: 10705390
    Abstract: A liquid-crystal display device includes a first polarizer which has a transmission axis extended in a first direction, a second polarizer disposed above the first polarizer and which has a transmission axis extended in a second direction intersecting the first direction, a liquid-crystal layer disposed between the first polarizer and the second polarizers, and a linear patterned layer disposed between the liquid-crystal layer and the second polarizer, wherein the linear patterned layer comprises a pattern of linear features and the linear features of the pattern are extended in the second direction and spaced apart from one another in the first direction.
    Type: Grant
    Filed: June 6, 2018
    Date of Patent: July 7, 2020
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Kyung Hae Park, Joon Hyung Park, Jong Ho Son, Chang Hun Lee
  • Publication number: 20200163936
    Abstract: Provided herein are compositions including oxotremorine (e.g., oxotremorine methiodide or Oxo-M) and 4-PPBP (e.g., 4-PPBP maleate). Also provided are methods of treating a connective tissue defect in a subject with oxotremorine and 4-PPBP. In addition, provided are scaffolds and methods of making same that include multiple fibers that include Oxo-M, 4-PPBP, and optionally icariin or kartogenin.
    Type: Application
    Filed: January 30, 2020
    Publication date: May 28, 2020
    Inventors: Chang Hun Lee, Solaiman Tarafder, Esther Chen
  • Publication number: 20200149301
    Abstract: The present invention relates to a construction climbing system with improved structural stability and, more specifically, to a construction climbing system with improved structural stability, and having an improved form, the system being capable of more stably operating the attachment and detachment of a gang form provided in the climbing system without shaking, enabling the vertical movement of the climbing system to be smooth without stopping so as to ensure structural stability, and enabling a working space of an operator to be ensured as wide as possible by using an auxiliary extension platform, thereby enabling work stability of the operator to be improved.
    Type: Application
    Filed: April 8, 2018
    Publication date: May 14, 2020
    Inventors: Myong Lae LEE, Chang Hun LEE, Chang Min LEE
  • Patent number: 10647918
    Abstract: A liquid crystal composition includes: at least one liquid crystal compound selected from the group consisting of Chemical Formulas 1-1 to 1-8; at least one self-aligned compound selected from the group consisting of Chemical Formulas 2-1 and 2-2; and at least one reactive mesogen selected from the group consisting of Chemical Formulas 3-1 to 3-5. Compositions and devices constructed therewith are capable of ameliorating liquid crystal drip spots that typically occur in a manufacturing process. In addition, the display devices using the composition do not require an additional alignment layer, which simplifies manufacturing.
    Type: Grant
    Filed: August 23, 2018
    Date of Patent: May 12, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Eun Jang, Sun Young Kwon, Min-Hee Kim, Jong Ho Son, Keun Chan Oh, Chang-Hun Lee
  • Publication number: 20200110303
    Abstract: A display panel includes an upper display substrate and a lower display substrate. The upper display substrate includes a base substrate, a first partition wall on the base substrate, overlapping the light blocking area, and configured to define first, second, and third internal regions corresponding to the first, second, and third pixel areas, a second partition wall extending from the first partition wall, overlapping at least one area of the first, second, and third pixel areas, and configured to partition a region corresponding to the at least one area into partial regions, and first, second, and third color control layers respectively located in the first, second, and third internal regions.
    Type: Application
    Filed: August 13, 2019
    Publication date: April 9, 2020
    Inventors: Chang-hun LEE, Min-jae KIM, Min-hee KIM, Taehoon KIM, Kyunghae PARK, Joon-hyoung PARK, Danbi YANG
  • Patent number: 10583117
    Abstract: Provided herein are compositions including oxotremorine (e.g., oxotremorine methiodide or Oxo-M) and 4-PPBP (e.g., 4-PPBP maleate). Also provided are methods of treating a connective tissue defect in a subject with oxotremorine and 4-PPBP. In addition, provided are scaffolds and methods of making same that include multiple fibers that include Oxo-M, 4-PPBP, and optionally icariin or kartogenin.
    Type: Grant
    Filed: September 17, 2018
    Date of Patent: March 10, 2020
    Assignee: The Trustees of Columbia University in the City of New York
    Inventors: Chang Hun Lee, Solaiman Tarafder, Esther Chen
  • Publication number: 20200038450
    Abstract: Provided herein are compositions and methods for healing cartilage tissue defects or injury by forming fibrochondrocyte cells or fibrochondrocyte-like cells from recruited progenitor cells, such as mesenchymal stem cells.
    Type: Application
    Filed: September 30, 2019
    Publication date: February 6, 2020
    Inventor: Chang Hun Lee
  • Publication number: 20190389516
    Abstract: Disclosed herein is a truck, a deck gate for truck, and a method for manufacturing thereof. According to the present invention, the deck gate for truck has excellent impact strength, low plastic deformation rate, excellent molding property and thermal resistance, and reduces weight. Also, the deck gate for truck according to the present invention reduces weight of about 23% in comparison with a conventional steel and wood type deck gate for truck.
    Type: Application
    Filed: June 19, 2019
    Publication date: December 26, 2019
    Inventors: DONG WON KIM, WOO JIN JUNG, CHANG HUN LEE, HYUN KYU SHIN, DAE IL LEE, JIN WOOK HAN
  • Publication number: 20190375810
    Abstract: A peptide is described herein that has: (i) a simple structure compared to existing natural human erythropoietin, thus capable of easily passing through a tissue-blood barrier, (ii) excellent bioactivity with respect to cell-protecting activity, (iii) a low manufacturing cost, thus being economically advantageous, and (iv) no side effects on cell proliferation. Also, a pharmaceutical composition comprising the erythropoietin-derived peptide described herein as an active ingredient is described. The pharmaceutical composition may be used for preventing or treating cell damage-related illnesses, such as stroke, mechanical damage or ischemic damage to the nervous system, myocardial infarction, retinal damage, and diabetes. Also, the described pharmaceutical composition may be used for preventing cell damage.
    Type: Application
    Filed: August 26, 2019
    Publication date: December 12, 2019
    Applicant: Daegu Gyeongbuk Institute of Science and Technology
    Inventors: Che il MOON, Seung Jun YOO, Chang-Hun LEE, So Yeon KIM, Deok Ho LEE
  • Publication number: 20190344242
    Abstract: A method is provided for preparing a super absorbent polymer capable of exhibiting an excellent absorption rate by including a uniform porous structure through a simple and economical process. The method includes: performing a crosslinking polymerization of a water-soluble ethylenically unsaturated monomer to form a hydrogel polymer; drying and pulverizing the hydrogel polymer; classifying the pulverized polymer into polymer particles having a particle size of at least 10 to 150 ?m, polymer particles having a particle size of 150 to 200 ?m, and polymer particles having a particle size of 200 to 850 ?m to form a base polymer powder having a particle size of 150 to 850 ?m; and surface-crosslinking the base polymer powder, wherein in the crosslinking polymerization step, the foaming polymerization proceeds in the presence of polymer particles having an average particle size of 10 to 200 ?m obtained in the classifying step and an anionic surfactant.
    Type: Application
    Filed: October 15, 2018
    Publication date: November 14, 2019
    Applicant: LG Chem, Ltd.
    Inventors: Moo Kon Kim, Sang Gi Lee, Hye Mi Nam, Chang Hun Lee, Tae Yun Kim
  • Patent number: 10473982
    Abstract: A liquid crystal display including a first substrate, a second substrate disposed opposite the first substrate, and a liquid crystal layer disposed between the first substrate and the second substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one of liquid crystal compounds including a cyclopentadienyl group.
    Type: Grant
    Filed: April 14, 2017
    Date of Patent: November 12, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun Young Kwon, Tae Hoon Kim, Ji Hong Bae, Jong Ho Son, Keun Chan Oh, Gak Seok Lee, Chang Hun Lee, Ji Eun Jang
  • Patent number: 10421907
    Abstract: A liquid crystal display includes a first base substrate, a second base substrate, an electrode part, and a liquid crystal layer. The second base substrate is disposed opposite to the first base substrate. The electrode part is disposed on at least one of the first base substrate and the second base substrate. The liquid crystal layer is disposed between the first base substrate and the second base substrate. The liquid crystal layer includes a liquid crystal composition. The liquid crystal composition includes at least one kind of liquid crystal compounds including a cyclopentadienyl group.
    Type: Grant
    Filed: June 1, 2017
    Date of Patent: September 24, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Min Hee Kim, So Youn Park, Tae Ho Kim, Mi Hwa Lee, Kyung Ho Park, Chang Hun Lee
  • Publication number: 20190163023
    Abstract: A liquid-crystal display device includes a first polarizer which has a transmission axis extended in a first direction, a second polarizer disposed above the first polarizer and which has a transmission axis extended in a second direction intersecting the first direction, a liquid-crystal layer disposed between the first polarizer and the second polarizers, and a linear patterned layer disposed between the liquid-crystal layer and the second polarizer, wherein the linear patterned layer comprises a pattern of linear features and the linear features of the pattern are extended in the second direction and spaced apart from one another in the first direction.
    Type: Application
    Filed: June 6, 2018
    Publication date: May 30, 2019
    Inventors: Kyung Hae PARK, Joon Hyung PARK, Jong Ho SON, Chang Hun LEE
  • Publication number: 20190153319
    Abstract: Provided are a liquid-crystal display device and a method of manufacturing a liquid-crystal display device. The liquid-crystal display device includes a first base substrate, a first liquid crystal alignment layer disposed on the first base substrate. The first liquid crystal alignment layer includes a polyimide-based polymer and an organic-inorganic composite. A liquid crystal layer is disposed on the first liquid crystal alignment layer. A method of manufacturing a liquid-crystal display device includes forming a first liquid crystal alignment layer including a polyimide-based polymer and an organic-inorganic composite on a first base substrate and forming a liquid crystal layer on the first liquid crystal alignment layer.
    Type: Application
    Filed: November 15, 2018
    Publication date: May 23, 2019
    Inventors: Tae Hoon KIM, Won Gap YOON, Chang Hun LEE
  • Publication number: 20190146324
    Abstract: Disclosed is a pellicle for extreme ultraviolet (EUV) lithography. The pellicle may include: a support layer pattern which is formed by etching a support layer; a pellicle layer which is formed on the support layer pattern; and an etching stop layer pattern which is formed between the support layer pattern and the pellicle layer and formed by etching an etching stop layer of stopping etching when the support layer is etched. Thus, there is provided a pellicle for EUV photomask, which maintains high transmittance with the minimum thickness for EUV exposure light, and is excellent in mechanical strength and thermal characteristics.
    Type: Application
    Filed: August 24, 2018
    Publication date: May 16, 2019
    Inventors: Kee-Soo NAM, Chang-Hun LEE, Ju-Hee HONG, Chul-Kyun PARK
  • Patent number: 10274786
    Abstract: A liquid crystal display device comprises: a first substrate; an organic layer disposed on the first substrate; a pixel electrode disposed on the organic layer; a plurality of slits defined in the pixel electrode and configured to exposed a surface of the organic layer; a liquid crystal alignment film disposed on a surface of the pixel electrode and on the surface of the organic layer exposed by the plurality of slits; and a plurality of liquid crystal molecules disposed on the liquid crystal alignment film, wherein the liquid crystal alignment film includes a first region overlapping the plurality of slits and a second region overlapping the pixel electrode, wherein the second region has a surface energy different from a surface energy of the first region.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: April 30, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Ho Son, Sun Young Kwon, Tae Hoon Kim, Kyung Hae Park, Joon Hyung Park, Ji Hong Bae, Gak Seok Lee, Jin Hyeong Lee, Chang Hun Lee, Ji Eun Jang, Hye Lim Jang