Patents by Inventor Kwang-wook Choi

Kwang-wook 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: 20180196183
    Abstract: A light source unit includes: a light source circuit board; light sources disposed on the light source circuit board and which emit light; a wavelength converter disposed on the light sources to be spaced apart from the light sources and to partially overlap with the light sources; a first glass disposed between the light sources and the wavelength converter; and a second glass disposed on the wavelength converter and at least partially in direct contact with, and coupled to, the first glass.
    Type: Application
    Filed: January 6, 2018
    Publication date: July 12, 2018
    Inventors: Young Hye SON, Yong Hoon KWON, Won Jin KIM, Woo Suk SEO, Si Joon SONG, Kwang Wook CHOI
  • Publication number: 20180149807
    Abstract: A backlight unit includes a light guide plate; a wavelength conversion member disposed on a surface of the light guide plate; and a housing which houses the wavelength conversion member and is fused to the light guide plate.
    Type: Application
    Filed: November 10, 2017
    Publication date: May 31, 2018
    Inventors: Woo Suk SEO, Kwang Wook CHOI, Yong Hoon KWON, Sung Chul KIM, Seok Hyun NAM, Si Joon SONG
  • Publication number: 20180126501
    Abstract: A backlight assembly includes a light source member, an optical film assembly, a rear receiving container and a mold frame. The rear receiving container includes a bottom plate and a plurality of sidewalls. Each of the sidewalls includes a first combining protrusion and a first combining recess. The first combining protrusion and the first combining recess extend in a direction substantially parallel with the protruded direction of the sidewall. The mold frame is disposed in the rear receiving container to press a peripheral portion of the optical film assembly. The mold frame includes a second combining recess and a second combining protrusion. The second combining recess and the second combining protrusion extend in the direction substantially parallel with the protruded direction. The second combining recess is fitted with the first combining protrusion. The second combining protrusion is fitted with the first combining recess.
    Type: Application
    Filed: January 4, 2018
    Publication date: May 10, 2018
    Inventors: Kwang-Wook CHOI, Sang-Heon Ye, Jae-Sang Lee, Sang-Ho Hwang
  • Patent number: 9817182
    Abstract: A display device includes a display panel, a light source which generates light, a light guide plate which receives the light and guides the light to the display panel, the light guide plate defining a side surface thereof, an accommodating member accommodating the light source and the light guide plate therein, the accommodating member including a sidewall, and a fixing member in plural between the sidewall of the accommodating member and the side surface of the light guide plate. The fixing member defines a supporting portion thereof contacting the side surface of the light guide plate, fixing portions fixed to the sidewall of the accommodating member and spaced apart from each other, and a connecting portion provided in plural and connecting an end among opposing ends of the supporting portion to a fixing portion among the fixing portions, the fixing portion forming an acute angle with the connecting portion.
    Type: Grant
    Filed: February 19, 2016
    Date of Patent: November 14, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-wook Choi, Junwoo You
  • Publication number: 20170322361
    Abstract: A display device includes a display panel including a display area and a non-display area adjacent to the display area, a bottom member including a bottom part facing the display area, a side part extending from the bottom part toward the display panel, and a support part extending from the side part to face a portion of the display area and the non-display area, a plurality of light sources on the bottom part to the display light, and a light guide member between the support part of the bottom member and the display panel to guide the light incident from the plurality of light sources toward the display panel.
    Type: Application
    Filed: December 6, 2016
    Publication date: November 9, 2017
    Inventors: Young-min PARK, Kwang-wook CHOI, Eunju NAM, Min-young SONG
  • Publication number: 20170160580
    Abstract: A curved display device includes a display panel which is curved with respect to a central axis of the curved display device to define a display surface which is curved with respect to the central axis of the curved display device; a first adhesion member attached to an edge area of a bottom surface of the display panel; a mold frame which is curved with respect to the central axis of the curved display device, the mold frame defining a stepped portion on which the display panel is seated; and a second adhesion member attached to a top surface of the stepped portion and to the first adhesion member which is attached to the edge area of the bottom surface of the display panel.
    Type: Application
    Filed: July 1, 2016
    Publication date: June 8, 2017
    Inventors: Sijoon SONG, Yong-hoon KWON, Sojeong LA, Seokhyun NAM, Kwang-wook CHOI
  • Publication number: 20170117566
    Abstract: Disclosed are a method of manufacturing an inorganic electrolyte membrane and a composition for manufacturing an inorganic electrolyte membrane, the method including: (a) mixing primary inorganic particles (<50 nm), a dispersant, and a solvent and dispersing the primary inorganic particles, thus preparing a dispersion of secondary inorganic particles having a hydrodynamic diameter of 120 to 230 nm, determined using DLS (Dynamic Light Scattering), (b) adding and mixing the dispersion of secondary inorganic particles with a binder, (c) applying a mixed solution composed of the dispersion of inorganic particles and the binder and drying the mixed solution, thus forming a green sheet, and (d) firing the green sheet, thus forming an electrolyte membrane.
    Type: Application
    Filed: July 30, 2015
    Publication date: April 27, 2017
    Applicant: LG CHEM, LTD.
    Inventors: Ki-Youl YOON, Dong-Oh SHIN, Kwang-Wook CHOI, Hyeon CHOI
  • Patent number: 9629238
    Abstract: A display device includes: a display panel curved in one direction; and a lower frame configured to accommodate the display panel. The lower frame includes: a plurality of bottom portions having a predetermined curvature; a side portion bent and extending from an edge portion of the bottom portion; and at least one connecting unit configured to connect the plurality of bottom portions.
    Type: Grant
    Filed: August 7, 2015
    Date of Patent: April 18, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Hyeon Lee, Lu Ly Lee, Kwang Wook Choi
  • Patent number: 9618023
    Abstract: A display device, comprising a base cover with a base plate, a sidewall portion extended from the base plate and a first coupling hole; a display panel with a first display portion configured to display an image and a second display portion outside and along the first display portion, a top cover with a bezel portion sized to be laid over the second display portion, and a sidewall portion extended from the bezel portion, the top cover including a second coupling hole; and a fixing element with a first coupling portion having a third coupling hole, a contact portion extended from the first coupling portion and configured to maintain contact with a portion of the top cover. A coupling element can be inserted through the first through third coupling holes so as to press the contact portion against a portion of the top cover.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: April 11, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Wook Choi, Cheol Yong Noh, Sang Heon Ye, Jae Sang Lee
  • Patent number: 9575361
    Abstract: A reflection sheet and backlight unit including the same are disclosed. In one aspect, the reflection sheet includes a bottom surface, a plurality of side surfaces, each extending from the bottom surface and having an edge opposing the bottom surface, and a first cutting line formed in at least a first one of the side surfaces from a boundary between the first side surface and the bottom surface toward the opposing edge of the first side surface. The reflection sheet also includes a cover surface extending from the opposing edge of the first side surface, wherein the cover surface comprises a protruding surface protruding toward the first cutting line.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: February 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwang Wook Choi, Young Min Park, Young Keun Lee, Jae Sang Lee, Sang Ho Hwang
  • Publication number: 20160377485
    Abstract: A suspended type nanowire array and a manufacturing method thereof may be provided. More particularly, an array including a suspended type nanowire having two kinds of nanowires stacked thereon and a manufacturing method thereof may be provided. The suspended type nanowire array includes: a substrate; a suspended type nanowire which is suspended above the substrate and comprises a first nanowire, an insulating member, and a second nanowire which are sequentially stacked; a first electrode portion which is electrically connected to the first nanowire; and a second electrode portion which is electrically connected to the second nanowire.
    Type: Application
    Filed: February 17, 2016
    Publication date: December 29, 2016
    Applicant: Korea Advanced Institute of Science And Technology
    Inventors: Jun-Bo YOON, Kwang-Wook CHOI, Jae-Shin LEE, Min-Ho SEO, Chang-Keun KIM, Jae-Young YOO
  • Patent number: 9529135
    Abstract: A backlight assembly includes a plurality of point light sources, a light guide plate (“LGP”) and a printed circuit board (“PCB”). The LGP has a light incident face in which light is incident, a side surface extending from an edge portion of the light incident face, and a fixing groove which is formed from the side surface toward an inner portion thereof. The PCB includes a point light source disposing portion in which the point light sources are disposed along a first direction, an extending portion extending from the point light disposing portion along a second direction substantially perpendicular to the first direction, and a protrusion which is fixed at an end portion of the extending portion. The protrusion of the PCB is coupled with the fixing groove of the LGP.
    Type: Grant
    Filed: August 13, 2014
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joo-Woan Cho, Sung-Kyu Shim, Sang-Hoon Lee, Joo-Young Kim, Taek-Sun Shin, Jin-Hee Park, Kwang-Wook Choi
  • Publication number: 20160363721
    Abstract: A display device includes a display panel, a light source which generates light, a light guide plate which receives the light and guides the light to the display panel, the light guide plate defining a side surface thereof, an accommodating member accommodating the light source and the light guide plate therein, the accommodating member including a sidewall, and a fixing member in plural between the sidewall of the accommodating member and the side surface of the light guide plate. The fixing member defines a supporting portion thereof contacting the side surface of the light guide plate, fixing portions fixed to the sidewall of the accommodating member and spaced apart from each other, and a connecting portion provided in plural and connecting an end among opposing ends of the supporting portion to a fixing portion among the fixing portions, the fixing portion forming an acute angle with the connecting portion.
    Type: Application
    Filed: February 19, 2016
    Publication date: December 15, 2016
    Inventors: Kwang-wook CHOI, Junwoo YOU
  • Patent number: 9513429
    Abstract: The high intensity light output of edge lighting point light sources such as LEDs may generate undesired leakage light that is optically conducted by way of a continuum of the material of a components affixing adhesive member. In accordance with present disclosure, air filled grooves or other such discontinuities are formed in the adhesive member along respective light output pathways of the respective point light sources. One corresponding embodiment comprises spaced apart LEDs mounted on an FPCB; a light guide plate (LGP) disposed adjacent to the LEDs; a main support accommodating the LEDs and the LGP; and an adhesive member formed to affix together the FPCB, the main support, and the light guide, wherein the adhesive member is patterned to define air filled grooves along respective light output pathways of the LEDs.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: December 6, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Yeol Yeom, Sun Hee Oh, Rae Young Kim, Taek-Sun Shin, Kwang-Wook Choi
  • Publication number: 20160238895
    Abstract: A backlight unit according to an exemplary embodiment of the present disclosure includes: a bottom chassis; a light source disposed on the bottom chassis; a reflective sheet disposed on the bottom chassis; at least one optical sheet disposed above the light source and the reflective sheet; and a supporter fixed to the bottom chassis and supporting the optical sheet. The supporter includes a locking portion fastened to the bottom chassis and a supporting portion extending from the locking portion, and the locking portion is positioned lower than the reflective sheet.
    Type: Application
    Filed: December 11, 2015
    Publication date: August 18, 2016
    Inventors: Kwang-Wook CHOI, Young-Min PARK, Sang Ho HWANG
  • Patent number: 9341764
    Abstract: Provided are a backlight unit and a liquid crystal display including the backlight unit. The backlight unit includes a light emitting package, and a light guide plate disposed at one side of the light emitting package. The light emitting package includes a printed circuit board including first regions that are spaced an interval apart from each other and second regions defined between the first regions, light source units disposed on the first regions of the printed circuit board, dummy wiring patterns disposed on the second regions of the printed circuit board, and wiring patterns disposed on the printed circuit board and electrically connected to the light source units.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 17, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Rae Young Kim, Myoung Seok Son, Taek Sun Shin, Sun Hee Oh, Kwang Wook Choi
  • Patent number: 9320157
    Abstract: A display device including: a display panel; a chassis base that houses the display panel on one side and comprises at least one pair of supporting bosses on the other side; and a wall-mount holder that is connected to the pair of supporting bosses and includes a supporting rod coupling hole, wherein the pair of supporting bosses includes a first supporting boss and a second supporting boss, and wherein the first supporting boss and the second supporting boss include a guide pin and a screw groove.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: April 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang-Ho Hwang, Jae-Sang Lee, Kwang-Wook Choi
  • Patent number: 9310047
    Abstract: A display apparatus includes a curved display panel having a first curvature; and a plurality of light source units arranged along the first curvature the display panel. Each light source unit includes a reflective part including a reflective upper surface which has a second curvature different from the first curvature of the display panel; and a light source part which is at a first side of the reflective part, and includes a light source which generates and provides a light to the reflective surface.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Wook Choi, JooYoung Kim, Chi-O Cho, Insun Hwang
  • Publication number: 20160088745
    Abstract: A display device includes: a display panel curved in one direction; and a lower frame configured to accommodate the display panel. The lower frame includes: a plurality of bottom portions having a predetermined curvature; a side portion bent and extending from an edge portion of the bottom portion; and at least one connecting unit configured to connect the plurality of bottom portions.
    Type: Application
    Filed: August 7, 2015
    Publication date: March 24, 2016
    Inventors: Dong Hyeon LEE, Lu Ly LEE, Kwang Wook CHOI
  • Patent number: 9274267
    Abstract: A backlight device is provided. A backlight device according to an exemplary embodiment of the present invention includes: a lower cover enclosing a light guide plate and having a bottom cover and a side cover; and a printed circuit board attached to the lower cover and mounted with the light source, wherein the first opening is formed in the lower cover. The light source is inserted into the first opening and is positioned on an inner surface of the lower cover, and the printed circuit board is positioned at the outer surface of the lower cover.
    Type: Grant
    Filed: January 24, 2013
    Date of Patent: March 1, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Chang Moo Lee, Kwang-Wook Choi