Patents by Inventor Dong Hyun Oh

Dong Hyun Oh 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: 9841857
    Abstract: The present application provides a conductive pattern laminate including: a substrate having concave portions or protrusion portions on an upper surface thereof; and a conductive film provided on an upper surface of concave portions or protrusion portions of the substrate and on a portion in which no concave portions or protrusion portions are present on the upper surface of the substrate, in which the conductive film provided on the upper surface of concave portions or protrusion portions of the substrate and the conductive film provided on the portion in which no concave portions or protrusion portions are present on the upper surface of the substrate are electrically disconnected from each other, a method for manufacturing the same, and an electronic apparatus including the laminate.
    Type: Grant
    Filed: March 24, 2014
    Date of Patent: December 12, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Ji Young Hwang, Dong Hyun Oh, Hang Suk Choi, Seung Heon Lee, Sungjoon Min
  • Patent number: 9840668
    Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally transparent or black mode, exhibiting a high contrast ratio, being driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: December 12, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Joon Min, Jung Sun You, Dong Hyun Oh
  • Patent number: 9828550
    Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally white or black mode, which may exhibit a high contrast ratio and be driven with a low driving voltage, and exhibit excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: November 28, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Jung Sun You, Dong Hyun Oh, Sung Joon Min, Kyung Jun Kim, Dae Hee Lee, Jun Won Chang, Moon Soo Park
  • Patent number: 9790429
    Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally transparent or black mode, exhibiting a high contrast ratio, being driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.
    Type: Grant
    Filed: December 16, 2013
    Date of Patent: October 17, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Joon Min, Jung Sun You, Dong Hyun Oh
  • Patent number: 9758726
    Abstract: Provided are a liquid crystal cell and a use thereof. An exemplary liquid crystal cell can be implemented in a bistable mode switching between a haze mode and a non-haze mode even with low driving voltage. Such a liquid crystal cell can be applied to various optical modulation apparatus, such as a smart window, a window protection film, a flexible display element, an active retarder for a 3D visual display, and a viewing angle-controlling film.
    Type: Grant
    Filed: July 11, 2014
    Date of Patent: September 12, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Eun Jung Lim, Jung Woon Kim, Dong Hyun Oh
  • Publication number: 20170108740
    Abstract: The present application relates to a liquid crystal element and a use of the liquid crystal element. The exemplary liquid crystal element of the present application is, for example, an element capable of realizing a normally transparent mode, having a high contrast ratio, and being driven with a low driving voltage. Such a liquid crystal element may be applied in a variety of light modulators including a smart window, a window protective film, a flexible display element, an active retarder for displaying a 3D image and a viewing angle controlling film.
    Type: Application
    Filed: April 6, 2015
    Publication date: April 20, 2017
    Applicant: LG Chem, Ltd.
    Inventors: Jin Hong Kim, Jung Woon Kim, Dong Hyun Oh, Jung Sun You
  • Patent number: 9588369
    Abstract: The present application relates to a liquid crystal cell, a method for preparing a liquid crystal cell and a display device. An exemplary liquid crystal cell may be applied to various types of display devices so as to control a viewing angle or light transmittance of the display device.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: March 7, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Sung Joon Min, Dong Hyun Oh, Jun Won Chang, Kyung Jun Kim, Hye Won Jeong, Moon Soo Park
  • Publication number: 20160377902
    Abstract: Provided are a light modulation device and a use thereof. The light modulation device may apply an external signal by a composite layer having a high transmittance in a visible region, a low transmittance in an infrared region and a low sheet resistance. Such a light modulation device may be applied in various uses such as a smart window, a window protecting film, a flexible display element, an active retarder for displaying a 3D image or a viewing angle control film.
    Type: Application
    Filed: March 6, 2015
    Publication date: December 29, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Sung Joon MIN, Su Jin KIM, Doo Hoon SONG, Jin Hyong LIM, Dong Hyun OH, Ki Hwan KIM
  • Publication number: 20160299366
    Abstract: The present application relates to a method of preparing a liquid crystal capsule, a liquid crystal capsule and the use of the liquid crystal capsule. The liquid crystal capsule prepared according to an embodiment of the present application has advantages in that transmittance and stability are improved and the degree of scattering is uniform.
    Type: Application
    Filed: February 26, 2015
    Publication date: October 13, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Dong Hyun OH, Sung Joon MIN, Jung Sun YOU, Kyung Jun KIM
  • Publication number: 20160291357
    Abstract: The present application relates to an optical element. The exemplary optical element may have a variable transmittance by whether an external signal is applied or not. Also, since the optical element may apply the external signal by using a composite layer having a low transmittance to light in an infrared region, the optical element may block heat, and save energy. Such an optical element may be usefully employed in various optical devices, for example, a sunroof.
    Type: Application
    Filed: March 9, 2015
    Publication date: October 6, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Sung Joon MIN, Eun Jung LIM, Dong Hyun OH, Jung Woon KIM, Jung Sun YOU, Jin Hong KIM
  • Publication number: 20160282982
    Abstract: The present application provides a conductive pattern laminate including: a substrate having concave portions or protrusion portions on an upper surface thereof; and a conductive film provided on an upper surface of concave portions or protrusion portions of the substrate and on a portion in which no concave portions or protrusion portions are present on the upper surface of the substrate, in which the conductive film provided on the upper surface of concave portions or protrusion portions of the substrate and the conductive film provided on the portion in which no concave portions or protrusion portions are present on the upper surface of the substrate are electrically disconnected from each other, a method for manufacturing the same, and an electronic apparatus including the laminate.
    Type: Application
    Filed: March 24, 2014
    Publication date: September 29, 2016
    Inventors: Ji Young HWANG, Dong Hyun OH, Hang Suk CHOI, Seung Heon LEE, Sungjoon MIN
  • Patent number: 9411189
    Abstract: A liquid crystal cell, a precursor of the liquid crystal layer, a method of manufacturing a liquid crystal cell, and use of the liquid crystal cell are provided. The liquid crystal cell may be manufactured simply in a consecutive manner using a roll-to-roll process. Also, the liquid crystal cell may be realized as a flexible device, and have an excellent contrast ratio. Such a liquid crystal cell can be applied in various applications including smart windows, window-protecting films, flexible display devices, active retarders for displaying 3D images, or viewing angle-adjusting films.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 9, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Dong Hyun Oh, Kyung Jun Kim, Sung Joon Min, Jung Sun You
  • Publication number: 20160115389
    Abstract: Provided are a liquid crystal cell and a use thereof. An exemplary liquid crystal cell can be implemented in a bistable mode switching between a haze mode and a non-haze mode even with low driving voltage. Such a liquid crystal cell can be applied to various optical modulation apparatus, such as a smart window, a window protection film, a flexible display element, an active retarder for a 3D visual display, and a viewing angle-controlling film.
    Type: Application
    Filed: July 11, 2014
    Publication date: April 28, 2016
    Applicant: LG CHEM, LTD.
    Inventors: Eun Jung LIM, Jung Woon KIM, Dong Hyun OH
  • Publication number: 20150368559
    Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally white or black mode, which may exhibit a high contrast ratio and be driven with a low driving voltage, and exhibit excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.
    Type: Application
    Filed: December 16, 2013
    Publication date: December 24, 2015
    Inventors: Jung Sun YOU, Dong Hyun OH, Sung Joon MIN, Kyung Jun KIM, Dae Hee LEE, Jun Won CHANG, Moon Soo PARK
  • Publication number: 20150338689
    Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally white or black mode, exhibiting a high contrast ratio, driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 26, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sung Joon MIN, Jung Sun YOU, Dong Hyun OH
  • Publication number: 20150331264
    Abstract: Provided are a liquid crystal device, a composition capable of forming a liquid crystal layer, a method of manufacturing the liquid crystal device, a system for manufacturing the liquid crystal device, and a use of the liquid crystal device. The liquid crystal device is a device capable of exhibiting, for example, a normally transparent or black mode, exhibiting a high contrast ratio, being driven with a low driving voltage, and exhibiting excellent durability such as thermal stability. Such a liquid crystal device may be applied to various optical modulators such as a smart window, a window protective film, a flexible display device, an active retarder for displaying 3D images, or a viewing angle control film.
    Type: Application
    Filed: December 16, 2013
    Publication date: November 19, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sung Joon MIN, Jung Sun YOU, Dong Hyun OH
  • Patent number: 9182624
    Abstract: The present application relates to a liquid crystal cell, a method for preparing a liquid crystal cell and a display device. An exemplary liquid crystal cell may be applied to various types of display devices so as to control a viewing angle or light transmittance of the display device.
    Type: Grant
    Filed: June 6, 2014
    Date of Patent: November 10, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sung Joon Min, Dong Hyun Oh, Jun Won Chang, Kyung Jun Kim, Hye Won Jeong, Moon Soo Park
  • Patent number: 9133353
    Abstract: In a method for preparing a polyimide resin by reacting diamine and dianhydride, the polyimide resin is polymerized under the presence of a solvent having a boiling point ranging from 130° C. to 180° C. so as to be curable at a low temperature ranging from 150° C. to 250° C. Because the polyimide is curable even at a low temperature, when the polyimide resin is used as an electronic material, damage to equipment due to an otherwise high temperature process can be minimized, and in addition, the polyimide resin can be extensively used as an electronic material such as for a plastic substrate, or the like.
    Type: Grant
    Filed: July 13, 2011
    Date of Patent: September 15, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Sang Woo Kim, Se Jin Shin, Dong Hyun Oh, Kyung Jun Kim
  • Publication number: 20150131033
    Abstract: A liquid crystal device, a precursor composition, a method of manufacturing a liquid crystal device, an apparatus of manufacturing a liquid crystal device, and use of the liquid crystal device are provided. A device capable of being driven at a low driving voltage can be provided. The device can be realized so that the device can be driven in a normally transparent mode or a normally black mode. Also, the device has other excellent characteristics such as a contrast ratio. Such a liquid crystal device can be applied to various light modulation devices such as smart windows, window-protecting films, flexible display devices, active retarders for displaying 3D images, or viewing angle-adjusting films.
    Type: Application
    Filed: January 21, 2015
    Publication date: May 14, 2015
    Applicant: LG CHEM, LTD.
    Inventors: Sung Joon MIN, Dong Hyun OH, Jung Sun YOU, Jin Hong KIM
  • Publication number: 20140285752
    Abstract: The present application relates to a liquid crystal cell, a method for preparing a liquid crystal cell and a display device. An exemplary liquid crystal cell may be applied to various types of display devices so as to control a viewing angle or light transmittance of the display device.
    Type: Application
    Filed: June 6, 2014
    Publication date: September 25, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Sung Joon MIN, Dong Hyun OH, Jun Won CHANG, Kyung Jun KIM, Hye Won JEONG, Moon Soo PARK