Patents by Inventor Oleg Prudnikov

Oleg Prudnikov 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: 10654130
    Abstract: A polarization module and a laser exposure apparatus have a polarization module including a first lens and a second lens that reduce a one-directional length of a cross-section of an incident laser beam having an optical axis. A polarization beam splitter divides the laser beam passing through the first and second lenses into two laser beams that are polarized in different directions with respect to each other. A first prism lens and a second prism lens emit an output laser beam by controlling the two laser beams that are divided by the polarization beam splitter to positions that are symmetrical with respect to the optical axis. At least one half wave plate is disposed between the polarization beam splitter and the first prism lens.
    Type: Grant
    Filed: June 7, 2016
    Date of Patent: May 19, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD
    Inventors: Joo Woan Cho, Byoung Ho Cheong, Oleg Prudnikov, Jeong Kyun Na, Joon-Hwa Bae, Seung Hwan Lee, Byoung Kwon Choo
  • Patent number: 10347484
    Abstract: A laser crystallizing apparatus includes a laser generator that generates an incident laser beam that includes a P polarization component and an S polarization component, an optical system that converts the incident laser beam to generate an emitted laser beam, and a stage on which is mounted a target substrate with a target thin film which is laser-crystallized by being irradiated by the emitted laser beam. The optical system includes at least one half wave plate (HWP) that shifts a polarization axis direction of the incident laser beam received from the laser generator, at least one mirror that fully reflects the laser beam, and at least one polarization beam splitter (PBS) which reflects a part of the laser beam and transmits the other part of the laser beam.
    Type: Grant
    Filed: March 29, 2016
    Date of Patent: July 9, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joo Woan Cho, Jeong Kyun Na, Seung Hwan Lee, Joon-Hwa Bae, Byoung Ho Cheong, Byoung Kwon Choo, Oleg Prudnikov
  • Patent number: 9969047
    Abstract: A substrate polishing apparatus includes a support part on which at least one substrate is disposed, a plurality of first moving parts disposed at both opposite sides of the support part in a second direction crossing a first direction, and configured to upwardly extend and reciprocate in the first direction, a second moving part disposed between the plurality of first moving parts in the second direction and connected to an upper side of the first moving parts, a plurality of polishing units disposed at a lower portion of the second moving part and configured to contact an upper surface of the substrate, and a plurality of nozzles disposed at the lower portion of the second moving part and configured to spray slurry to the substrate where the polishing units rotate and revolve along a predetermined trajectory.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joowoan Cho, Hyunjin Cho, Byoungkwon Choo, Oleg Prudnikov, Jeongkyun Na, Sanghoon Ahn, Seunghwan Lee, Byoungho Cheong
  • Patent number: 9726805
    Abstract: A backlight assembly includes a first light source part including a plurality of first light sources configured to generate light having a first color and a plurality of second light sources configured to generate light having a second color different from the first color, and a light guiding plate including a first incident surface and an exiting surface adjacent to the first incident surface. The exiting surface is configured to allow the light to pass therethrough. The exiting surface includes a first peripheral portion configured to absorb the light having the second color and a central portion adjacent to the first peripheral portion and configured to allow the light to pass therethrough. The first and second light sources are alternately located.
    Type: Grant
    Filed: May 19, 2014
    Date of Patent: August 8, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Deok Im, Jong-Hyuk Kang, Jung-Hyun Kwon, Hae-Il Park, Hyun-Min Cho, Oleg Prudnikov, Jae-Byung Park, Dong-Hoon Lee
  • Publication number: 20170192301
    Abstract: A display device includes a display panel and a backlight unit. The display panel is configured to display an image. The backlight unit is configured to provide light to the display panel. The display panel includes an array substrate including a plurality of pixel areas, an opposite substrate facing the array substrate, a liquid crystal layer disposed between the array substrate and the opposite substrate, and a wavelength-selective transflective member disposed on the array substrate or the opposite substrate.
    Type: Application
    Filed: March 21, 2017
    Publication date: July 6, 2017
    Inventors: Hyundeok IM, Oleg Prudnikov, TaeWoo Kim, Moongyu Lee, Byoungho Cheong
  • Patent number: 9612473
    Abstract: A display device includes a display panel and a backlight unit. The display panel is configured to display an image. The backlight unit is configured to provide light to the display panel. The display panel includes an array substrate including a plurality of pixel areas, an opposite substrate facing the array substrate, a liquid crystal layer disposed between the array substrate and the opposite substrate, and a wavelength-selective transflective member disposed on the array substrate or the opposite substrate.
    Type: Grant
    Filed: February 20, 2013
    Date of Patent: April 4, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyundeok Im, Oleg Prudnikov, TaeWoo Kim, Moongyu Lee, Byoungho Cheong
  • Publication number: 20170087664
    Abstract: A polarization module and a laser exposure apparatus have a polarization module including a first lens and a second lens that reduce a one-directional length of a cross-section of an incident laser beam having an optical axis. A polarization beam splitter divides the laser beam passing through the first and second lenses into two laser beams that are polarized in different directions with respect to each other. A first prism lens and a second prism lens emit an output laser beam by controlling the two laser beams that are divided by the polarization beam splitter to positions that are symmetrical with respect to the optical axis. At least one half wave plate is disposed between the polarization beam splitter and the first prism lens.
    Type: Application
    Filed: June 7, 2016
    Publication date: March 30, 2017
    Inventors: JOO WOAN CHO, BYOUNG HO CHEONG, OLEG PRUDNIKOV, JEONG KYUN NA, JOON-HWA BAE, SEUNG HWAN LEE, BYOUNG KWON CHOO
  • Publication number: 20170062248
    Abstract: A laser crystallizing apparatus includes a laser generator that generates an incident laser beam that includes a P polarization component and an S polarization component, an optical system that converts the incident laser beam to generate an emitted laser beam, and a stage on which is mounted a target substrate with a target thin film which is laser-crystallized by being irradiated by the emitted laser beam. The optical system includes at least one half wave plate (HWP) that shifts a polarization axis direction of the incident laser beam received from the laser generator, at least one mirror that fully reflects the laser beam, and at least one polarization beam splitter (PBS) which reflects a part of the laser beam and transmits the other part of the laser beam.
    Type: Application
    Filed: March 29, 2016
    Publication date: March 2, 2017
    Inventors: JOO WOAN CHO, Jeong Kyun Na, Seung Hwan Lee, Joon-Hwa Bae, Byoung Ho Cheong, Byoung Kwon Choo, Oleg Prudnikov
  • Patent number: 9494814
    Abstract: The present invention provides a display device including: a plurality of display panels including display areas, and non-display areas positioned alongside the display areas; an optical member having one side connected to a part of one of the display areas and an opposing side extending over an adjacent non-display area, the optical member configured to magnify an image from the part of one of the display areas and to project the magnified image over the adjacent non-display area. A multi panel display device according to the exemplary embodiment of the present invention may prevent the phenomena of image discontinuity and image distortion at edges between the display panels, and adjust a polarization characteristic to provide a high-quality large screen capable of implementing a 3D image and the like.
    Type: Grant
    Filed: January 17, 2014
    Date of Patent: November 15, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung Han Yoo, Byoung Ho Cheong, Oleg Prudnikov, Dae Ho Yoon, Moon Gyu Lee, Hyeong Gyu Jang
  • Publication number: 20160318149
    Abstract: A substrate polishing apparatus includes a support part on which at least one substrate is disposed, a plurality of first moving parts disposed at both opposite sides of the support part in a second direction crossing a first direction, and configured to upwardly extend and reciprocate in the first direction, a second moving part disposed between the plurality of first moving parts in the second direction and connected to an upper side of the first moving parts, a plurality of polishing units disposed at a lower portion of the second moving part and configured to contact an upper surface of the substrate, and a plurality of nozzles disposed at the lower portion of the second moving part and configured to spray slurry to the substrate where the polishing units rotate and revolve along a predetermined trajectory.
    Type: Application
    Filed: April 26, 2016
    Publication date: November 3, 2016
    Inventors: Joowoan CHO, Hyunjin CHO, Byoungkwon CHOO, Oleg PRUDNIKOV, Jeongkyun NA, Sanghoon AHN, Seunghwan LEE, Byoungho CHEONG
  • Patent number: 9460922
    Abstract: A method of manufacturing a display apparatus includes forming an amorphous silicon layer on a substrate, splitting a first laser beam emitted from a first laser source into a first master beam in a first polarization state and a second master beam in a second polarization state, changing the first polarization state of the first master beam to the second polarization state to output a third master beam having the second polarization state and corresponding to the first master beam having the second polarization state, combining the second master beam with the third master beam to output a merged laser beam, and irradiating the amorphous silicon layer with the merged laser beam to form a polysilicon layer.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: October 4, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sanghoon Ahn, Byoungkwon Choo, Byoungho Cheong, Jeongkyun Na, Seung Hwan Lee, Joowoan Cho, Hyunjin Cho, Oleg Prudnikov
  • Patent number: 9417372
    Abstract: A lighting unit for a display device includes: a plurality of light sources which emits light; a wedge-shaped light guide having an incident surface disposed close to the light sources and an opposing surface disposed opposite the incident surface; and a lens sheet disposed on the light guide, where the lens sheet includes a plurality of lenses, each having an axis in a direction from the incident surface to the opposing surface, where the light guide is thinner at the incident surface than at the opposing surface, and a radius of curvature of each of the lenses is larger at the incident surface than the opposing surface.
    Type: Grant
    Filed: August 8, 2013
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Deok Im, Hyun Jin Cho, Oleg Prudnikov, Dae Ho Yoon, Byoung Ho Cheong
  • Publication number: 20160041317
    Abstract: The display device includes a backlight unit, a color filter and a shutter panel. The color filter is formed on the backlight unit and includes a red color filter, a green color filter and a blue color filter. Each of the red color filter, green color filter, and blue color filter includes first dielectric layers including a first material having a first refractive index and second dielectric layers including a second material having a second refractive index smaller than the first refractive index, the first dielectric layers and the second dielectric layers being alternately stacked. The sum of the number of the first dielectric layers and the number of the second dielectric layers in the red color filter is different from the sum of the number of the first dielectric layers and the number of the second dielectric layers in the green color filter.
    Type: Application
    Filed: February 13, 2015
    Publication date: February 11, 2016
    Inventors: Youngchan KIM, Oleg PRUDNIKOV
  • Patent number: 9235055
    Abstract: A light source assembly including a light source part, a light guide plate and a light-condensing sheet. The light source assembly generates light and includes at least one light source. The light guide plate includes an incident surface to which the light is incident, an opposing surface which is opposite to the incident surface, and an exiting surface which emits the light, and has a thickness which is gradually increased from the incident surface to the opposing surface. The light-condensing sheet includes a plurality of reverse prism patterns which protrude toward the exiting surface, extend along an arc of a circle, and are arranged in a concentric circle structure.
    Type: Grant
    Filed: August 21, 2012
    Date of Patent: January 12, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun-Deok Im, Guk-Hyun Kim, Jung-Hyun Cho, Moon-Jung Baek, Byoung-Ho Cheong, Seong-Mo Hwang, Oleg Prudnikov
  • Patent number: 9046632
    Abstract: In a light guide plate and a display apparatus having the light guide plate, a light guide plate includes reflective prisms, in which at least one of the reflective prisms includes an inclined angle adjustable according to an inclined surface of a defective portion thereof and compensates for a distortion of light caused by the defective portion.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: June 2, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byoungho Cheong, Oleg Prudnikov, Guk Hyun Kim, Hyundeok Im
  • Publication number: 20150085522
    Abstract: A backlight assembly includes a first light source part including a plurality of first light sources configured to generate light having a first color and a plurality of second light sources configured to generate light having a second color different from the first color, and a light guiding plate including a first incident surface and an exiting surface adjacent to the first incident surface. The exiting surface is configured to allow the light to pass therethrough. The exiting surface includes a first peripheral portion configured to absorb the light having the second color and a central portion adjacent to the first peripheral portion and configured to allow the light to pass therethrough. The first and second light sources are alternately located.
    Type: Application
    Filed: May 19, 2014
    Publication date: March 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyun-Deok Im, Jong-Hyuk Kang, Jung-Hyun Kwon, Hae-Il Park, Hyun-Min Cho, Oleg Prudnikov, Jae-Byung Park, Dong-Hoon Lee
  • Publication number: 20150055218
    Abstract: The present invention provides a display device including: a plurality of display panels including display areas, and non-display areas positioned alongside the display areas; an optical member having one side connected to a part of one of the display areas and an opposing side extending over an adjacent non-display area, the optical member configured to magnify an image from the part of one of the display areas and to project the magnified image over the adjacent non-display area. A multi panel display device according to the exemplary embodiment of the present invention may prevent the phenomena of image discontinuity and image distortion at edges between the display panels, and adjust a polarization characteristic to provide a high-quality large screen capable of implementing a 3D image and the like.
    Type: Application
    Filed: January 17, 2014
    Publication date: February 26, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Byung Han YOO, Byoung Ho CHEONG, Oleg PRUDNIKOV, Dae Ho YOON, Moon Gyu LEE, Hyeong Gyu JANG
  • Publication number: 20140354920
    Abstract: A multi-panel display apparatus includes at least two display panels and an optical member. Each display panel includes a display area and a connection non-display area. The optical member displays light emitted from peripheral regions of the display areas of the display panels. The optical member includes an adhesive layer between laminated sheets. Each sheet includes a base film made of a transparent material having a first refractive index and a reflection layer at a surface of the base film made of metal. The adhesive layer is made of a material having a second refractive index less than the first refractive index.
    Type: Application
    Filed: April 15, 2014
    Publication date: December 4, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeonggyu JANG, Byung Han YOO, Moongyu LEE, Byoungho CHEONG, Oleg PRUDNIKOV
  • Publication number: 20140146564
    Abstract: A backlight unit includes a light source part, a light guide plate, a prism sheet, and a reflecting element. The light source part is configured to provide light. The light guide plate includes: a light incident portion disposed adjacent to the light source part, a corresponding portion spaced apart from and facing the light incident portion, a light exiting surface, and a bottom surface spaced apart from and facing the light exiting surface. A thickness of the light incident portion is greater than a thickness of the corresponding portion. The prism sheet is disposed on the light guide plate. The prism sheet includes a plurality of prisms extending toward the light guide plate. The reflecting element is disposed under the light guide plate. The reflecting element is configured to reflect at least some of the light toward the light guide plate.
    Type: Application
    Filed: August 21, 2013
    Publication date: May 29, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyun-Deok IM, Oleg Prudnikov, Byoung-Ho Cheong, Hyun-Jin Cho, Guk-Hyun Kim
  • Patent number: 8714805
    Abstract: A display apparatus includes a light source and a light guide plate including a light incident surface facing the light source and which receive the light, an opposite surface opposite to the light incident surface and which reflects the light and has an arc shape, connection surfaces at opposing sides of the light incident surface and which connect the light incident surface and the opposite surface, an upper surface connected to the light incident surface, the opposite surface and the connection surfaces and which outputs the light, and a lower surface opposite to the upper surface. The light incident surface of the light guide plate includes a first surface extending in a predetermined direction, and second surfaces inclined from the first surface in an area corresponding to the light source such that an optical recess having a polygonal pyramid shape is defined by the second surfaces.
    Type: Grant
    Filed: January 5, 2012
    Date of Patent: May 6, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Guk Hyun Kim, Oleg Prudnikov, Youngchan Kim, Byoungho Cheong