Patents by Inventor Yuriy A. Reznikov

Yuriy A. Reznikov 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).

  • Method for controlling pretilt angle direction in a liquid crystal cell
    Publication number: 20010003475
    Abstract: A method is disclosed for controlling a pretilt angle direction for a liquid crystal cell comprising the steps of first setting the magnitude of pretilt angle and a plurality of pretilt angle directions in an alignment layer. This first step is achieved by irradiating linearly the alignment layer with polarized or unpolarized UV light. One of the plurality of pretilt angle directions is then selected by exposing the alignment layer to UV light a second time.
    Type: Application
    Filed: January 29, 2001
    Publication date: June 14, 2001
    Inventors: Yuriy Reznikov, Oleg Yaroshchuk, Joung Won Woo, Yoo Jin Choi, Ki Hyuk Yoon, Mi Sook Nam, Jong Hyun Kim, Soon Bum Kwon
  • Method for controlling pretilt angle direction in a liquid crystal cell
    Patent number: 6226066
    Abstract: A method is disclosed for controlling a pretilt angle direction for a liquid crystal cell comprising the steps of first setting the magnitude of pretilt angle and a plurality of pretilt angle directions in an alignment layer. This first step is achieved by irradiating linearly the alignment layer with polarized or unpolarized UV light. One of the plurality of pretilt angle directions is then selected by exposing the alignment layer to UV light a second time.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: May 1, 2001
    Assignee: LG. Philips LCD Co., Ltd.
    Inventors: Yuriy Reznikov, Oleg Yaroshchuk, Joung Won Woo, Yoo Jin Choi, Ki Hyuk Yoon, Mi Sook Nam, Jong Hyun Kim, Soon Bum Kwon
  • Method for manufacturing a multidomain LCD panel using mask of different photo transmittances and/or resin photosensitive to UV and visible light
    Patent number: 6169591
    Abstract: A method for manufacturing a multidomain liquid crystal display panel, including the steps of forming a photo-alignment layer on a substrate, positioning a mask having a plurality of regions with different photo-transmittances; and forming different alignment directions in different domains of the photo-alignment layer corresponding to each of the plurality of regions by irradiating the photo-alignment layer with light through the mask.
    Type: Grant
    Filed: August 26, 1998
    Date of Patent: January 2, 2001
    Assignee: LG Electronics Inc.
    Inventors: Soon Bum Kwon, Young Seok Choi, Yuriy Reznikov, Oleg Yaroshchuk
  • Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof
    Patent number: 5998563
    Abstract: Photosensitive orientation material providing unidirectional LC alignment to generate a high pretilt angle for various LC compounds, and superior thermal stability, and being suitable for mass production, especially for active matrix LC displays, including polysiloxane, and a derivative of a cinnamoyl group.
    Type: Grant
    Filed: May 22, 1998
    Date of Patent: December 7, 1999
    Assignee: LG Electronics Inc.
    Inventors: Grit Pirwitz, Horst Zaschke, Andrea Hohmuth, Yuriy Reznikov, Oleg Yaroshchuk, Igor Cerus
  • Photosensitive material for orientation of liquid crystal device and liquid crystal device thereof
    Patent number: 5824377
    Abstract: Photosensitive orientation material providing unidirectional LC alignment to generate a high pretilt angle for various LC compounds, and superior thermal stability, and being suitable for mass production, especially for active matrix LC displays, including polysiloxane, and a derivative of a cinnamoyl group.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: October 20, 1998
    Assignee: LG Electronics Inc.
    Inventors: Grit Pirwitz, Horst Zaschke, Andrea Hohmuth, Yuriy Reznikov, Oleg Yaroshchuk, Igor Cerus
  • Orientation film of photopolymer in a liquid crystal display and a method of forming the film
    Patent number: 5767994
    Abstract: A method for the formation of orientation film of a liquid crystal display. The method comprises the steps of forming polyvinyl-4-fluorocinnamate (hereinafter "PVCN-F") film on the surfaces of two opposite substrates and irradiating the two PVCN-F films formed with linearly polarized UV lights having different energy. The method in accordance with the present invention is capable of not only providing the pretilt angle to a fabricated LCD but also adjusting it by illuminating two substrates with linearly polarized UV beams having different energies from each other, respectively. In addition, the LCD fabricated by the method according to the present invention requires a much lower driving voltage, as compared with the conventional LCD having an orientation film of planar structure. Furthermore, phase distortion and light scattering phenomena do not occur in the LCD, so that display characteristics such as contrast and the like can be improved.
    Type: Grant
    Filed: June 1, 1995
    Date of Patent: June 16, 1998
    Assignee: Goldstar Co., Ltd.
    Inventors: Dae Sung Kang, Woo Sang Park, Hyun Ho Shin, Soon Bum Kwon, Tatyana Ya. Marusii, Yuriy A. Reznikov, Anatoliy I. Khizhnyak, Oleg V. Yaroshchuk
  • Liquid crystal device utilizing thermostable polymeric material
    Patent number: 5538823
    Abstract: A thermostable orientation material for liquid crystal alignment including a photopolymerized polyvinyl fluorocinnamate.
    Type: Grant
    Filed: February 27, 1995
    Date of Patent: July 23, 1996
    Assignees: Goldstar Co., Ltd., Institute of Physics
    Inventors: Woo S. Park, Hyun H. Shin, Soon B. Kwon, Andrey G. Dyadyusha, Tatyana Y. Marusii, Yuriy A. Reznikov, Anatoliy I. Khizhnyak, Oleg V. Yaroshchuk, Alexandr A. Kolomeytsev, Igor V. Gerus
  • Method for forming an orientation film of photopolymer in a liquid crystal display
    Patent number: 5464669
    Abstract: A method for the formation of orientation film of a liquid crystal display.The method comprises the steps of forming polyvinyl-4-fluorocinnamate (hereinafter "PVCN-F") film on the surfaces of two opposite substrates and irradiating the two PVCN-F films formed with linearly polarized UV lights having different energy.The method in accordance with the present invention is capable of not only providing the pretilt angle to a fabricated LCD but also adjusting it by illuminating two substrates with linearly polarized UV beams having different energies from each other, respectively. In addition, the LCD fabricated by the method according to the present invention requires a much lower driving voltage, as compared with the conventional LCD having an orientation film of planar structure. Furthermore, phase distortion and light scattering phenomena do not occur in the LCD, so that display characteristics such as contrast and the like can be improved.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: November 7, 1995
    Assignee: Goldstar Co., Ltd.
    Inventors: Dae S. Kang, Woo S. Park, Hyun H. Shin, Soon B. Kwon, Tatyana Y. Marusii, Yuriy A. Reznikov, Anatoliy I. Khizhnyak, Oleg V. Yaroschchuk
  • Process for making photopolymers having varying molecular orientation using light to orient and polymerize
    Patent number: 5389698
    Abstract: An oriented photopolymer is a polymer where photomodification is initiated by irradiation with plane-polarized light and where the molecular configuration has a preferred orientation as a result of linear polarization. These polymers have optically anisotropic and other novel properties.
    Type: Grant
    Filed: September 21, 1993
    Date of Patent: February 14, 1995
    Assignees: Hoffmann-La Roche Inc., Niopic Moscow Research and Production Association
    Inventors: Vladimir G. Chigrinov, Vladimir M. Kozenkov, Nicolic V. Novoseletsky, Victor Y. Reshetnyak, Yuriy A. Reznikov, Martin Schadt, Klaus Schmitt