Patents by Inventor Jung Woon KIM

Jung Woon KIM 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).

  • Patent number: 11429005
    Abstract: An optical device is provided in the present application. The optical device of the present application has varying transmittance and improved appearance defects, such as reduction of wrinkles that may occur by lamination of a liquid crystal element and an outer substrate. Such optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Grant
    Filed: July 18, 2019
    Date of Patent: August 30, 2022
    Inventors: Nam Hun Kim, Byoung Kun Jeon, Doo Young Huh, Su Young Ryu, Seong Min Lee, Jung Woon Kim, Young Shin Lee
  • Patent number: 11428968
    Abstract: An optical device and a use thereof are provided. The optical device is capable of suppressing external bubble inflow by eliminating negative pressures that can occur due to shape deformation of a base material in an environment changing between a high temperature and a low temperature and generating a positive pressure. Such optical device can be used as various transmittance-variable devices.
    Type: Grant
    Filed: April 24, 2019
    Date of Patent: August 30, 2022
    Inventors: Nam Hun Kim, Jung Woon Kim, In Ju Mun, Su Young Ryu, Byoung Kun Jeon
  • Patent number: 11372290
    Abstract: An optical device includes a first outer substrate; a second outer substrate disposed opposite to the first outer substrate; and an active liquid crystal film or a polarizer, wherein the active liquid crystal film or the polarizer is encapsulated by an encapsulating agent between the first and second outer substrates and wherein a shrinkable film adjacent to any one of the first and second outer substrates is further included. The optical device is capable of varying transmittance. The optical device can be used for various applications such as an eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewears, an outer wall of a building or a sunroof for a vehicle.
    Type: Grant
    Filed: September 3, 2019
    Date of Patent: June 28, 2022
    Inventors: Jung Woon Kim, Byoung Kun Jeon, Beom Jin Lee, In Ju Mun, Su Young Ryu, Seong Min Lee, Young Shin Lee, Nam Hun Kim
  • Publication number: 20220146878
    Abstract: An optical device that can be used for various applications including eyewears, such as sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle, and the like is provided. The optical device includes first and second outer substrates disposed to face each other, an active liquid crystal film layer, and a step forming layer. The active liquid crystal film layer and the step forming layer are encapsulated by an encapsulating agent between the first and second outer substrate. The active liquid crystal film layer comprises a first region that is pressed by the step forming layer and a second region that is not pressed by the step forming layer. The defects caused by an excessively large or small amount of light-modulating material or heat shrinkage of the light-modulating material, and the like are prevented in the optical device.
    Type: Application
    Filed: March 26, 2020
    Publication date: May 12, 2022
    Applicant: LG Chem, Ltd.
    Inventors: Seong Min Lee, Byoung Kun Jeon, Nam Hun Kim, Jung Woon Kim, Young Shin Lee
  • Patent number: 11300837
    Abstract: The present application relates to a method of applying particles, an optical film and a method of manufacturing an active liquid crystal device. In the method of applying particles of the present application, the particles can be uniformly applied on a base material and fixed while maintaining the shape of particles. The optical film of the present invention produced by the above method can have excellent particle dispersity. A method of manufacturing an active liquid crystal device using the above method can maintain a cell gap uniformly while simplifying the manufacturing process and preventing gravity defects.
    Type: Grant
    Filed: June 7, 2017
    Date of Patent: April 12, 2022
    Inventors: Su Young Ryu, Jung Woon Kim, Tae Gyun Kwon, Moon Soo Park
  • Patent number: 11194194
    Abstract: An optical device is disclosed herein. In some embodiments, an optical device includes an active liquid crystal element, wherein the active liquid crystal element comprises two base layers, an active liquid crystal layer disposed between the two base layers, wherein the active liquid crystal layer includes a liquid crystal compound and is capable of switching between first and second oriented states, and a hard coating layer formed on one of the base layers, wherein the hard coating layer is formed on an active liquid crystal layer-facing surface or an opposite surface of the base layer, and wherein the hard coating layer having a thickness of 2 ?m or more. The optical device is capable of varying transmittance, and can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a vehicle sunroof.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: December 7, 2021
    Inventors: Jung Woon Kim, Su Young Ryu, Tae Yong Kim, Doo Young Huh, Byoung Kun Jeon, Sang Uk Ryu
  • Publication number: 20210325706
    Abstract: An optical device includes a first outer substrate; a second outer substrate disposed opposite to the first outer substrate; and an active liquid crystal film or a polarizer, wherein the active liquid crystal film or the polarizer is encapsulated by an encapsulating agent between the first and second outer substrates and wherein a shrinkable film adjacent to any one of the first and second outer substrates is further included. The optical device is capable of varying transmittance. The optical device can be used for various applications such as an eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewears, an outer wall of a building or a sunroof for a vehicle.
    Type: Application
    Filed: September 3, 2019
    Publication date: October 21, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Jung Woon KIM, Byoung Kun JEON, Beom Jin LEE, In Ju MUN, Su Young RYU, Seong Min LEE, Young Shin LEE, Nam Hun KIM
  • Publication number: 20210223602
    Abstract: An optical device is provided in the present application. The optical device of the present application has varying transmittance and improved appearance defects, such as reduction of wrinkles that may occur by lamination of a liquid crystal element and an outer substrate. Such optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Application
    Filed: July 18, 2019
    Publication date: July 22, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Nam Hun Kim, Byoung Kun Jeon, Doo Young Huh, Su Young Ryu, Seong Min Lee, Jung Woon Kim, Young Shin Lee
  • Patent number: 11036093
    Abstract: The present application relates to a method of manufacturing an optical device, an optical device and a use of the optical device. The method of manufacturing an optical device of the present application can form a patterned mold layer to maintain an appropriate gap between the upper and lower substrates, and can apply an imprinting process in patterning the mold layer to simply manufacture the mold pattern having the desired shape. In addition, the optical device manufactured by the above manufacturing method can have a low driving voltage and no short circuit phenomenon, and be realized as a flexible device. Such an optical device can be applied to various display devices such as LCDs.
    Type: Grant
    Filed: September 8, 2016
    Date of Patent: June 15, 2021
    Inventors: Jung Sun You, Sung Joon Min, Dong Hyun Oh, Jin Hong Kim, Jung Woon Kim, Eun Jung Lim
  • Publication number: 20210157196
    Abstract: An optical device and a use thereof are provided. The optical device is capable of suppressing external bubble inflow by eliminating negative pressures that can occur due to shape deformation of a base material in an environment changing between a high temperature and a low temperature and generating a positive pressure. Such optical device can be used as various transmittance-variable devices.
    Type: Application
    Filed: April 24, 2019
    Publication date: May 27, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Nam Hun Kim, Jung Woon Kim, In Ju Mun, Su Young Ryu, Byoung Kun Jeon
  • Patent number: 10976597
    Abstract: The present application relates to an optical device and a use thereof. The optical device of the present application is a member in which transmittance can vary depending on whether or not an external action is present, and has excellent durability.
    Type: Grant
    Filed: December 2, 2016
    Date of Patent: April 13, 2021
    Assignee: LG CHEM, LTD.
    Inventors: Ji Hoon Park, Byoung Kun Jeon, Seung Hun Chae, Seong Min Lee, Jung Woon Kim
  • Patent number: 10941344
    Abstract: A liquid crystal cell which is capable of switching between a transparent mode and a scattering mode by using a non-ionic compound as a liquid crystal additive for realizing the EHDI characteristics and has excellent performance such as a driving voltage characteristic, a haze characteristic and reliability by securing solubility of the additive for liquid crystals. Such a liquid crystal cell can be applied to various light modulation devices such as a smart window, a window protective film, a flexible display device, a light shielding plate for transparent display, an active retarder for 3D image display, or a viewing angle adjusting film.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: March 9, 2021
    Inventors: Jung Woon Kim, Eun Jung Lim, Dong Hyun Oh
  • Publication number: 20210018772
    Abstract: An optical device is provided in the present application. The present application provides an optical device capable of varying transmittance, and such optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a sunroof for a vehicle.
    Type: Application
    Filed: March 27, 2019
    Publication date: January 21, 2021
    Applicant: LG Chem, Ltd.
    Inventors: Nam Hun Kim, Seong Min Lee, Byoung Kun Jeon, Su Young Ryu, Jung Woon Kim, Young Shin Lee
  • Patent number: 10890806
    Abstract: The present application relates to a transmittance variable film, a method for producing the same, and a use thereof. The transmittance variable film of the present application can solve the drive unevenness phenomenon by adjusting the pre-tilt of the opposite alignment film of the alignment film to which the ball spacer is fixed to minimize the reverse tilt occurring upon on-off driving. The transmittance variable film of the present application can be used as sunroofs.
    Type: Grant
    Filed: July 27, 2017
    Date of Patent: January 12, 2021
    Inventors: Jung Woon Kim, Su Young Ryu, Byoung Kun Jeon, Moon Soo Park
  • Publication number: 20200310185
    Abstract: A transmittance-variable layer and a transmittance-variable device including the same are disclosed herein. In some embodiments, a transmittance-variable device includes a polarization layer and a transmittance-variable layer disposed on the polarization layer, wherein the transmittance-variable layer includes a first base layer disposed on the polarization layer and a spacer fixed on a surface of the first base layer opposite to the polarization layer, and a second base layer facing the first base layer and spaced apart from the first base layer by the first spacer, wherein the first spacer maintains a gap between the first and second base layers, and a first light modulating material disposed in the gap.
    Type: Application
    Filed: November 28, 2018
    Publication date: October 1, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jung Woon Kim, Su Young Ryu, Byoung Kun Jeon, Yong Sung Choi, Seong Min Lee, Hye Min Yu
  • Publication number: 20200285107
    Abstract: The present application relates to an optical device and a use thereof. The optical device of the present application is a member in which transmittance can vary depending on whether or not an external action is present, and has excellent durability.
    Type: Application
    Filed: December 2, 2016
    Publication date: September 10, 2020
    Inventors: Ji Hoon PARK, Byoung Kun JEON, Seung Hun CHAE, Seong Min LEE, Jung Woon KIM
  • Publication number: 20200241338
    Abstract: The present application relates to an optical device. The present application provides an optical device capable of varying transmittance, and such an optical device can be used for various applications such as eyewear, for example, sunglasses or AR (augmented reality) or VR (virtual reality) eyewear, an outer wall of a building or a vehicle sunroof.
    Type: Application
    Filed: August 29, 2018
    Publication date: July 30, 2020
    Applicant: LG Chem, Ltd.
    Inventors: Jung Woon Kim, Su Young Ryu, Tae Yong Kim, Doo Young Huh, Byoung Kun Jeon, Sang Uk Ryu
  • Patent number: 10718980
    Abstract: The present invention relates to a liquid crystal window, a method of manufacturing the same, an optical element comprising the liquid crystal window, and a use thereof. The liquid crystal window of the present invention and its manufacturing method have excellent fixing property of a spacer and thus excellent cell gap maintaining characteristics, and can effectively prevent thermal damage of a base layer and be economical in manufacturing processes.
    Type: Grant
    Filed: December 13, 2016
    Date of Patent: July 21, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Jung Woon Kim, Su Young Ryu, Byoung Kun Jeon, Moon Soo Park
  • Patent number: 10663825
    Abstract: The present application relates to a liquid crystal device. The liquid crystal device of the present application may realize a transparent white state, a transparent black state and a scattering state according to a frequency and/or level of an applied voltage. The liquid crystal device may be applied to, for example, a window of a vehicle, a smart window, a window protective film, a display, a light cutoff panel for a display, an active retarder for a 3D image display or a viewing angle controlling film.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 26, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Eun Jung Lim, Sung Joon Min, Jung Sun You, Jung Woon Kim, Jin Hong Kim, Dong Hyun Oh
  • Patent number: 10663828
    Abstract: The present application relates to a liquid crystal device. The liquid crystal device of the present application may realize a transparent white state, a transparent black state and a scattering state according to a level of an applied voltage at a fixed frequency. The liquid crystal device may be applied to, for example, a window of a vehicle, a smart window, a window protective film, a display, a light cutoff panel for a display, an active retarder for a 3D image display or a viewing angle controlling film.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 26, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Eun Jung Lim, Sung Joon Min, Jung Sun You, Jung Woon Kim, Jin Hong Kim, Dong Hyun Oh