Patents by Inventor Yoon-sun Choi

Yoon-sun Choi 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).

  • Publication number: 20120249537
    Abstract: A method and apparatus for displaying three dimensional (3D) images are provided. The display apparatus includes a backlight unit which emits light, an image panel which includes plurality of pixels for modulating the light from the backlight unit to form a gray scaled image, an electrowetting lens unit which includes first electrowetting lenses arranged to correspond to the plurality of pixels in the image panel and second electrowetting lenses arranged opposite to the first electrowetting lenses, wherein at least two of the first electrowetting lenses and at least one of the second electrowetting lenses may be arranged opposite each other; and a controller which controls the electrowetting lens unit to separate beams exiting from the image panel into at least two viewing zones in a 3D image display mode.
    Type: Application
    Filed: March 13, 2012
    Publication date: October 4, 2012
    Inventors: Jung-mok Bae, Yoon-sun Choi, Mi-jeong Song, Hoon Song
  • Publication number: 20120188619
    Abstract: A three-dimensional holographic image display device and a method using the same are provided. Light corresponding to left and right eye holograms is emitted according to a time division method and divided into a first path and a second path. Active shutters operate substantially in synchronization with the emitted left and right eye holograms to provide images to a user's left and right eyes.
    Type: Application
    Filed: January 18, 2012
    Publication date: July 26, 2012
    Inventors: Hoon SONG, Yoon-sun Choi, Hong-seok Lee, Jae-hyeung Park
  • Publication number: 20120180652
    Abstract: Disclosed is a hybrid type air-compressor, which has a main body including a cylinder having upper and lower portions, a motor assembly including an eccentric shaft passing through a side surface of the main body to eccentrically rotate in the cylinder, a first communication part covering an upper portion of the cylinder of the main body and introducing air to discharge the air to the upper portion of the cylinder, a second communication part covering a lower portion of the cylinder of the main body and introducing air to discharge the air to the lower portion of the cylinder; and an air compressing means connected to the eccentric shaft of the motor assembly and vertically moving in the cylinder to alternately compress air introduced into the upper and lower portions of the cylinder.
    Type: Application
    Filed: March 9, 2011
    Publication date: July 19, 2012
    Inventors: Tae Soo Lee, Yoon Sun Choi, Seung Hwan Ryu, Gil Jun Lee, Yong Duck Kim
  • Publication number: 20120139908
    Abstract: A multi-view point 3D display apparatus using an active optical device is provided. The active optical device may change a path of light without a substantial drop of image resolution.
    Type: Application
    Filed: November 15, 2011
    Publication date: June 7, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-hwan CHOI, Hong-seok LEE, Hoon SONG, Yoon-sun CHOI, Jung-mok BAE
  • Publication number: 20120139909
    Abstract: A three-dimensional (3D) display apparatus and methods of displaying 3D images are provided. A 3D display apparatus includes a light source, a display unit, an active optical device for changing a travel path of light, and a plurality of projection optical systems.
    Type: Application
    Filed: November 16, 2011
    Publication date: June 7, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-hwan CHOI, Hong-seok Lee, Yoon-sun Choi, Jung-mok Bae, Hoon Song
  • Publication number: 20120099329
    Abstract: A surface light source device is provided. The surface light source device includes a light source, a beam splitter configured to split a light irradiated from the light source into a plurality of light beams each having a different path, a diffusion unit configured to diffuse the plurality of light beams split by the beam splitter into a surface light, and a collimating unit configured to arrange the plurality of light beams diffused from the diffusion unit in one direction.
    Type: Application
    Filed: August 25, 2011
    Publication date: April 26, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyu-hwan Choi, Hong-seok Lee, Hoon Song, Yoon-sun Choi, Jung-mok Bae
  • Publication number: 20120086994
    Abstract: An apparatus includes a recording light source configured to emit recording beams, an electrically addressable spatial light modulator (EASLM) configured to time sequentially modulate the recording beams emitted from the recording light source according to hologram information corresponding to a 3-dimensional image spatially divided into a plurality of portions, an optically addressable spatial light modulator (OASLM) configured to include a plurality of regions corresponding to the plurality of the divided portions of the 3-dimensional image and images on a region corresponding to the portions using the modulated recording beams to form a hologram, a scanning optical unit configured to reproduce the hologram formed by the recording beams serially modulated by the EASLM on a reduced scale and transmit the hologram to the regions of the OASLM corresponding to the portions, and a reproducing light source configured to produce a surface light and emit the surface light to the OASLM.
    Type: Application
    Filed: October 7, 2011
    Publication date: April 12, 2012
    Inventors: Kyu-hwan CHOI, Hoon Song, Hong-seok Lee, Yoon-sun Choi, Jung-mok Bae, Seung-hoon Han
  • Publication number: 20120056879
    Abstract: A 3D image display apparatus and a 3D image display method are provided. The 3D image display apparatus generates a 2D image region and a 3D image region, forms shutter patterns for the 3D and 2D image regions, and adjusts a light emitting direction according to the shutter patterns. Accordingly, the 2D and 3D images may be selectively displayed on one screen.
    Type: Application
    Filed: August 22, 2011
    Publication date: March 8, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoon Song, Yong-kweun Mun, Yoon-sun Choi, Hong-seok Lee
  • Publication number: 20120019908
    Abstract: An apparatus for displaying a 3-dimensional (3D) image, which is capable of providing a super multi-view, is provided. The apparatus includes: at least one image projector for projecting light including an image; an active optical element for adjusting a path of at least one light within a range of a predetermined angle; and a relay optical system for transmitting the at least one light to a pupil of a viewer. The apparatus provides a plurality of images in different views to the pupil using a time division method, by using the active optical element for adjusting the path of the at least one light.
    Type: Application
    Filed: March 11, 2011
    Publication date: January 26, 2012
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Kyu-hwan Choi, Yoon-sun Choi, Hong-seok Lee, Hoon Song
  • Publication number: 20120008067
    Abstract: A backlight unit and a display device including the backlight unit are provided. The backlight unit includes at least one light source unit and a light guide plate. The light source unit provides collimated light and controls light such that it is emitted in a plurality of light exit directions.
    Type: Application
    Filed: July 8, 2011
    Publication date: January 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong-kweun Mun, Yoon-sun Choi, Hong-seok Lee
  • Patent number: 8038494
    Abstract: An organic electroluminescent device (OELD) and a method of manufacturing the OELD are provided. The OELD includes a substrate, an anode electrode stacked on the substrate, an organic light emitting layer that is stacked on the anode electrode and has a plurality of protrusions on the organic light emitting layer, and a cathode electrode that covers the protrusions formed on the organic light emitting layer and is formed of a metal.
    Type: Grant
    Filed: December 2, 2009
    Date of Patent: October 18, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-sun Choi, Jin-Hwan Kim
  • Publication number: 20110242150
    Abstract: A backlight unit of a three-dimensional (3D) display has a plurality of cells and a 3D image is formed by adjusting directions of light emitted from the cells. The backlight unit includes an emission unit that adjusts an emission direction of light from a cell with respect to other cells. The backlight unit divides view areas to provide left-eye and right-eye images, thereby generating a 3D image.
    Type: Application
    Filed: March 30, 2011
    Publication date: October 6, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hoon SONG, Yoon-sun CHOI, Hong-seok LEE, Jung-mok BAE
  • Patent number: 8007862
    Abstract: Provided are a method of preparing a nanowire grid polarizer, and a nanowire grid polarizer prepared using the same. The method includes: mixing a surfactant and a silica precursor to prepare a mesoporous film composition; coating the mesoporous film composition on a substrate; aging the coated product to form a silica template composite; removing the surfactant inside the silica template composite to prepare a mesoporous material having channels; and filling the channels of the mesoporous material with metal. The method is suitable for the formation of a nanowire having a stable structure, mass production, and large-area production.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: August 30, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Su-mi Lee, Dong-mok Whang, Moon-gyu Lee, Yoon-sun Choi, Sun-hwak Woo
  • Publication number: 20110187635
    Abstract: A three-dimensional (3D) image display apparatus that includes a surface-light source device for emitting light in a direction which may be sequentially adjusted, is provided. The 3D image display apparatus includes a display panel for generating images by modulating the light emitted from the surface-light source device according to image information. The 3D image display apparatus also includes a controller for controlling the directivity adjustment of the light from the surface-light source device in a time-sequential manner and the image formation for each visual field of the display panel to be synchronized with each other.
    Type: Application
    Filed: November 3, 2010
    Publication date: August 4, 2011
    Inventors: Hong Seok Lee, Hoon Song, Yong-kweun Mun, Yoon-sun Choi, Hyung-sok Yeo
  • Publication number: 20110170185
    Abstract: Three-dimensional (3D) glasses and a 3D display apparatus are provided. The 3D display apparatus includes a backlight unit comprising a first light source unit for irradiating a first spectrum of light and a second light source unit for irradiating a second spectrum of light. The apparatus includes a polarization switch for selectively converting the polarization of incident light, and for reducing eye fatigue by providing a plurality of view images to each eye using a pair of glasses that each have a color filter and a birefringent device.
    Type: Application
    Filed: December 30, 2010
    Publication date: July 14, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hoon Song, Yong-kweun Mun, Yoon-sun Choi, Hong-seok Lee, Hyung-sok Yeo
  • Publication number: 20110163066
    Abstract: Provided are methods of manufacturing a surface light source device, the methods include forming a first structure that includes a first substrate and a plurality of glass beads each partially embedded in the first substrate. A second structure is formed that includes a second substrate and an adhesive material layer formed on the second substrate. The first structure and the second structure are adhered to each other in such a way that the glass beads are each partially embedded into the adhesive material layer.
    Type: Application
    Filed: October 27, 2010
    Publication date: July 7, 2011
    Inventors: Yoon-sun Choi, Hong-seok Lee, Myoung-seong Kim
  • Publication number: 20110154986
    Abstract: A high efficiency gas concentrating apparatus includes an air compressor for supplying high pressure air, first and second adsorption towers that are disposed above the air compressor and communicating with the air compressor to adsorb nitrogen and concentrate oxygen as the high pressure air is alternately supplied thereto, first and second concentrating passages that are disposed above the respective first and second adsorption towers to discharge the concentrated oxygen, and a cleaning tank that is disposed between the first and second concentrating passages to receive a portion of the concentrated oxygen from one of the first and second adsorption towers, temporarily store the received concentrated oxygen therein, and alternately remove adsorbed nitrogen by supplying the temporarily concentrated oxygen to the other of the first and second adsorption towers.
    Type: Application
    Filed: February 8, 2010
    Publication date: June 30, 2011
    Applicants: OXUS CO., LTD, Sogang University Industry-University Cooperation Foundation
    Inventors: Tae Soo Lee, Yoon Sun Choi, Seung Kwon Oh, Shin Kyu Han
  • Publication number: 20100231501
    Abstract: Provided is a transflective display apparatus including a light source, a light guide plate guiding light from the light source or incident external light toward the inside, emitting the light or the incident external light to a light emitting surface of the light guide plate, and including a diffusion reflective member formed on the light emitting surface, a color reflective member disposed in a lower portion of the light guide plate and including a plurality of arrayed color regions for reflecting light of a color, a light modulation member disposed in an upper portion of the light guide plate, modulating light, and forming an image, including a plurality of pixel regions corresponding to the plurality of color regions, respectively, each of the plurality of pixel regions including an effective region and an ineffective region, wherein the diffusion reflective member is disposed to face the ineffective region.
    Type: Application
    Filed: February 17, 2010
    Publication date: September 16, 2010
    Inventors: Yong-kweun Mun, Hong-seok Lee, Yoon-sun Choi, Hoon Song
  • Publication number: 20100208169
    Abstract: Provided is a transflective display apparatus including a color reflective plate disposed at a light emitting surface of a light guide plate, and a display panel disposed at another surface of the light emitting surface of the light guide plate so that light emitted from a light source is reflected by a color reflective plate through the light guide plate and travels toward the display panel.
    Type: Application
    Filed: January 20, 2010
    Publication date: August 19, 2010
    Inventors: Yong-kweun Mun, Hong-seok Lee, Yoon-sun Choi, Hoon Song
  • Publication number: 20100208497
    Abstract: Light guide plates having a filled-in type light emitting structure, display apparatuses using a light guide plate and methods of fabricating the same are provided, the light guide plates include a transparent light guide member, and a reflection member filled in the light guide member. The reflection member reflects light incident on the light guide member. The reflection member has a plurality of light exit holes through which light, reflected inside the light guide member, exits.
    Type: Application
    Filed: January 19, 2010
    Publication date: August 19, 2010
    Inventors: Hoon Song, Yong-kweun Mun, Yoon-sun Choi, Hong-seok Lee