Patents by Inventor Chan-Jae Park

Chan-Jae Park 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: 20150219832
    Abstract: Provided are a backlight assembly and a display device having the same. A backlight assembly includes a light source unit which emits light, a light guide plate (LGP) including an incident surface upon which light emitted from the light source unit is incident, an opposite surface which faces the incident surface, and an exit surface which connects the incident surface and the opposite surface and from which light incident upon the incident surface exits, a wavelength conversion member which is located on the exit surface and converts a wavelength of light output from the exit surface, and a first reflective member which is located on the opposite surface and reflects light incident upon the opposite surface, wherein the first reflective member includes a plurality of first color patterns which face the opposite surface.
    Type: Application
    Filed: June 5, 2014
    Publication date: August 6, 2015
    Inventors: Seung Hwan BAEK, Dong Hoon KIM, Seok Hyun NAM, Chan Jae PARK, Dong Hyeon LEE, Yeong Bae LEE
  • Patent number: 8974070
    Abstract: A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: March 10, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Hwan Baek, Eui Jeong Kang, Chan-Jae Park, Young-keun Lee
  • Publication number: 20140016351
    Abstract: A light source module includes a light source unit which generates a light; a light emitting part spaced apart from the light source unit and comprising a light emitting surface; and a light transmitting part which transmits the light generated by the light source unit to the light emitting part. The light emitting part emits the light transmitted by the light transmitting part, through the light emitting surface.
    Type: Application
    Filed: November 17, 2012
    Publication date: January 16, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Chan-Jae PARK, Seung-Hwan BAEK, Youn-Ho HAN, Seok-Hyun NAM, Sang-Won LEE, Young-Keun LEE
  • Publication number: 20140009726
    Abstract: A method of manufacturing a nanophosphor includes: contacting a nanophosphor raw material and a flux to form a mixture, sintering the mixture to form a nanoprecursor, ball-milling the nanoprecursor, and drying the ball-milled nanoprecursor to form the nanophosphor, wherein an average particle size of the nanophosphor is equal to or more than about 50 nanometers (nm) and equal to or less than about 7 micrometers (um).
    Type: Application
    Filed: December 5, 2012
    Publication date: January 9, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myeong Ju SHIN, Seung Hwan BAEK, Yeong Bae LEE, Chan Jae PARK
  • Publication number: 20130308343
    Abstract: A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.
    Type: Application
    Filed: July 31, 2013
    Publication date: November 21, 2013
    Inventors: Seung Hwan BAEK, Eui Jeong KANG, Chan-Jae PARK, Young-keun LEE
  • Patent number: 8523420
    Abstract: A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.
    Type: Grant
    Filed: March 28, 2012
    Date of Patent: September 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Hwan Baek, Eui Jeong Kang, Chan-Jae Park, Young-keun Lee
  • Publication number: 20130033892
    Abstract: A light emitting unit may include a housing having a bottom portion parallel to an xz plane and an opened top opposite to the bottom portion, a light emitting chip on the bottom portion and generating light, and a lens which overlaps the opened top of the housing. The lens may have a convex structure with respect to the xz plane when viewed from a cross section parallel to an xy plane and a concave structure with respect to the xz plane when viewed from a cross section parallel to a yz plane.
    Type: Application
    Filed: January 17, 2012
    Publication date: February 7, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-keun LEE, Chan-Jae PARK, Sang-Chul BYUN, Myeong-Ju SHIN, Suchang RYU
  • Publication number: 20130021818
    Abstract: A display device includes a display panel which displays an image, a backlight unit which supplies the display panel with light, an upper cover, and a lower cover. The upper and lower covers accommodate the display panel and the backlight unit. The backlight unit includes light guide plates spaced apart from each other, a light source part, an optical member and an optical diffusion member overlapping a space between the light guide plates. The optical diffusion member includes a diffusing part and a supporting part. The diffusing part faces the optical member, overlaps the space between the light guide plates, and diffuses light emitted from the light source part toward the optical member through the space between the light guide plates. The supporting part protrudes from a surface of the diffusing part which is opposite to the optical member, and is in a space between the light sources.
    Type: Application
    Filed: March 28, 2012
    Publication date: January 24, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Hwan BAEK, Eui Jeong KANG, Chan-Jae PARK, Young-keun LEE
  • Publication number: 20120256163
    Abstract: A display device including a display panel and a light emitting unit providing light to the display panel is described herein. The light emitting unit includes a light emitting diode and a light emitting layer. The light emitting diode emits a first light. The light emitting layer includes quantum dots and fluorescent particles. The quantum dots are disposed on the light emitting diode and absorb the first light to emit a second light of a wavelength different from that of the first light. The fluorescent particles absorb the first light to emit a third light of a wave length different from those of the first and second light.
    Type: Application
    Filed: April 10, 2012
    Publication date: October 11, 2012
    Inventors: Sanghyuck YOON, Chan-Jae Park
  • Publication number: 20120250290
    Abstract: A light emitting module includes a light source, a printed circuit board, and a connector part. The printed circuit board includes a wiring layer having a wiring electrically connected to the light source, a heat dissipation layer formed under the wiring layer, and a through hole passing through the wiring layer and the heat dissipation layer. The connector part is disposed in the through hole and is electrically connected to the wiring for transmitting a power through the wiring to the light source. The heat dissipation layer may effectively dissipate the heat generated from the light source. A height of a protrusion of the connector part protruding from an upper surface of the printed circuit board may be minimized, such that a dark area caused by the connector part may be minimized, and display quality of a display apparatus including the light emitting module may be optimized.
    Type: Application
    Filed: September 22, 2011
    Publication date: October 4, 2012
    Inventors: Chan-Jae PARK, Seung-Hwan Baek, Jae-Sang Lee, Young-Keun Lee, Young-Jun Seo, Young-Min Park
  • Publication number: 20120236592
    Abstract: Provided is a display apparatus, which includes a light source unit providing light, a light guide panel guiding the light to a display panel, the display panel receiving the light to display an image, and a bottom chassis accommodating the light guide panel, the light source unit, and the display panel. The light guide panel is adjacent to the light source unit, and includes a light incident surface to which the light is incident, a light output surface from which the light is emitted, and an opposite surface opposed to the light output surface. The display panel faces the light output surface and receives the light to display an image. The bottom chassis has a bottom facing the opposite surface. The light guide panel includes a coupling member protruding from the opposite surface and coupled to the bottom chassis.
    Type: Application
    Filed: January 19, 2012
    Publication date: September 20, 2012
    Inventors: Eui Jeong KANG, Juhwa Ha, Kwang Jin Jeong, Seki Park, Dongmin Yeo, Chan-Jae Park