Patents by Inventor Belyaev Sergey

Belyaev Sergey 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: 9448349
    Abstract: An optical film including at least one retardation film and at least one isotropic layer made of an isotropic material, wherein the difference in average refractive between the retardation film and the isotropic layer is at least 0.1 or more is provided. A method of adjusting wavelength dispersion characteristics of an optical film including stacking an isotropic layer onto a retardation film, and a method for preparing optical films having a variety of wavelength dispersion characteristics by coating the retardation film with the isotropic layer are provided.
    Type: Grant
    Filed: May 8, 2014
    Date of Patent: September 20, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Seung Hun Chae, Belyaev Sergey, Byoung Kun Jeon, Moon Soo Park
  • Patent number: 8994914
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: March 31, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Won Chang, Belyaev Sergey, Malimonenko Nikolay
  • Patent number: 8969857
    Abstract: There is provided a polarizer for organic light emitting diodes (OLED) having improved brightness. The polarizer, which comprises a linear polarizer and a ¼ retardation plate, comprises a reflective polarizer film disposed between the linear polarizer and the ¼ retardation plate and transmitting a polarized light horizontal to the transmission axis of the linear polarizer while reflecting a polarized light vertical to the transmission axis of the linear polarizer. The polarizer may be useful to highly improve the brightness of the OLED device when the polarizer is used in the OLED device.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: March 3, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sin-Young Kim, Hyuk Yoon, Moon-Soo Park, Belyaev Sergey
  • Publication number: 20140240830
    Abstract: There is provided an optical film. The optical film includes at least one retardation film and at least one isotropic layer made of an isotropic material, herein the difference in average refractive index between the retardation film and the isotropic layer is at least 0.1 or more. Also, the method of adjusting wavelength dispersion characteristics of an optical film includes: stacking an isotropic layer onto a retardation film. The present invention provides a method for preparing optical films having variety of wavelength dispersion characteristics by the simple method of coating the retardation film with the isotropic layer.
    Type: Application
    Filed: May 8, 2014
    Publication date: August 28, 2014
    Applicant: LG CHEM, LTD.
    Inventors: Seung Hun CHAE, Belyaev Sergey, Byoung Kun Jeon, Moon Soo Park
  • Patent number: 8801978
    Abstract: Disclosed is a method of manufacturing a biaxial polynorbornene-film having a compensation film which has good light transmittance and a uniform in-plane retardation value and can function as both a negative C-plate and an A-plate.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: August 12, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Won Kook Kim, Sung Ho Chun, Kyung Lim Paik, Belyaev Sergey, Malimonenko Nikolai
  • Patent number: 8790545
    Abstract: A composition for a liquid crystal film includes: 100 parts by weight of a vertically aligned liquid crystal mixture; 0.001-20 parts by weight of a chiral dopant; and 50-900 parts by weight of a solvent.
    Type: Grant
    Filed: October 16, 2012
    Date of Patent: July 29, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Hee Lee, Belyaev Sergey, Moon-Soo Park
  • Patent number: 8767297
    Abstract: An optical film includes at the least one retardation film and at least one isotropic layer made of an isotropic material, wherein the difference in average refractive index between the retardation film and the isotropic layer is at least 0.1 or more. Also, the method of adjusting wavelength dispersion characteristics of an optical film includes: stacking an isotropic layer onto a retardation film. A method for preparing optical film having a variety of wavelength dispersion characteristics by the simple method of coating the retardation film with the isotropic layer.
    Type: Grant
    Filed: August 13, 2008
    Date of Patent: July 1, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Seung Hun Chae, Belyaev Sergey, Byoung Kun Jeon, Moon Soo Park
  • Patent number: 8767151
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: July 1, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Won Chang, Belyaev Sergey, Malimonenko Nikolay
  • Patent number: 8759864
    Abstract: There is provided a polarizer for organic light emitting diodes (OLED) having improved brightness. The polarizer, which comprises a linear polarizer and a ¼ retardation plate, comprises a reflective polarizer film disposed between the linear polarizer and the ¼ retardation plate and transmitting a polarized light horizontal to the transmission axis of the linear polarizer while reflecting a polarized light vertical to the transmission axis of the linear polarizer. The polarizer may be useful to highly improve the brightness of the OLED device when the polarizer is used in the OLED device.
    Type: Grant
    Filed: December 7, 2012
    Date of Patent: June 24, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Sin-Young Kim, Hyuk Yoon, Moon-Soo Park, Belyaev Sergey
  • Patent number: 8743326
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Grant
    Filed: May 31, 2012
    Date of Patent: June 3, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Won Chang, Belyaev Sergey, Malimonenko Nikolay
  • Patent number: 8440117
    Abstract: Disclosed is a method of manufacturing a biaxial polynorbornene-film having a compensation film which has good light transmittance and a uniform in-plane retardation value and can function as both a negative C-plate and an A-plate.
    Type: Grant
    Filed: July 21, 2009
    Date of Patent: May 14, 2013
    Assignee: LG Chem, Ltd.
    Inventors: Won Kook Kim, Sung Ho Chun, Kyung Lim Paik, Belyaev Sergey, Malimonenko Nikolai
  • Patent number: 8338823
    Abstract: There is provided a polarizer for organic light emitting diodes (OLED) having improved brightness. The polarizer, which comprises a linear polarizer and a ¼ retardation plate, comprises a reflective polarizer film disposed between the linear polarizer and the ¼ retardation plate and transmitting a polarized light horizontal to the transmission axis of the linear polarizer while reflecting a polarized light vertical to the transmission axis of the linear polarizer. The polarizer may be useful to highly improve the brightness of the OLED device when the polarizer is used in the OLED device.
    Type: Grant
    Filed: May 22, 2009
    Date of Patent: December 25, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Sin-Young Kim, Hyuk Yoon, Moon-Soo Park, Belyaev Sergey
  • Patent number: 8318043
    Abstract: A composition for a liquid crystal film includes: 100 parts by weight of a vertically aligned liquid crystal mixture; 0.001-20 parts by weight of a chiral dopant; and 50-900 parts by weight of a solvent.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: November 27, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Dae-Hee Lee, Belyaev Sergey, Moon-Soo Park
  • Publication number: 20120293758
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Application
    Filed: May 31, 2012
    Publication date: November 22, 2012
    Inventors: Jun-Won CHANG, Belyaev SERGEY, Malimonenko NIKOLAY
  • Publication number: 20120293754
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Application
    Filed: May 31, 2012
    Publication date: November 22, 2012
    Inventors: Jun-Won CHANG, Belyaev SERGEY, Malimonenko NIKOLAY
  • Publication number: 20120293764
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Application
    Filed: May 31, 2012
    Publication date: November 22, 2012
    Inventors: Jun-Won CHANG, Belyaev SERGEY, Malimonenko NIKOLAY
  • Patent number: 8305545
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Grant
    Filed: December 4, 2008
    Date of Patent: November 6, 2012
    Assignee: LG Chem, Ltd.
    Inventors: Jun-Won Chang, Belyaev Sergey, Malimonenko Nikolay
  • Publication number: 20110080552
    Abstract: A composition for a liquid crystal film includes: 100 parts by weight of a vertically aligned liquid crystal mixture; 0.001-20 parts by weight of a chiral dopant; and 50-900 parts by weight of a solvent.
    Type: Application
    Filed: October 6, 2010
    Publication date: April 7, 2011
    Inventors: Dae-Hee Lee, Belyaev Sergey, Moon-Soo Park
  • Publication number: 20100320494
    Abstract: There is provided a polarizer for organic light emitting diodes (OLED) having improved brightness. The polarizer, which comprises a linear polarizer and a ¼ retardation plate, comprises a reflective polarizer film disposed between the linear polarizer and the ¼ retardation plate and transmitting a polarized light horizontal to the transmission axis of the linear polarizer while reflecting a polarized light vertical to the transmission axis of the linear polarizer. The polarizer may be useful to highly improve the brightness of the OLED device when the polarizer is used in the OLED device.
    Type: Application
    Filed: May 22, 2009
    Publication date: December 23, 2010
    Inventors: Sin-Young Kim, Hyuk Yoon, Moon-soo Park, Belyaev Sergey
  • Publication number: 20100177267
    Abstract: There is provided an integrated wide viewing film including: a first film having an optical axis located in-plan; and a second film having an optical axis located in a thickness direction thereof, and inclined at a 5predetermined angle in an in-plane direction. The IPS-LCD employing the integrated wide viewing film can be significantly improved in a contrast ratio in a diagonal direction.
    Type: Application
    Filed: December 4, 2008
    Publication date: July 15, 2010
    Applicant: LG CHEM, LTD.
    Inventors: Jun-Won Chang, Belyaev Sergey, Malimonenko Nikolay