Patents by Inventor Chang Hwa BAEK

Chang Hwa BAEK 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).

  • Backlight unit and display device including the same
    Patent number: 9448350
    Abstract: A backlight unit includes a light guide plate; a light emitting unit configured to irradiate light toward a side portion of the light guide plate, the side portion comprising an upper side part and a lower side part; and a light controller of which at least a portion is in at least one from among the upper and the lower side parts of the side portion of the light guide plate. The light controller includes a first region overlapping the light guide plate and a second region not overlapping the light guide plate, and a reflectivity of the first region is different from a reflectivity of the second region.
    Type: Grant
    Filed: October 11, 2013
    Date of Patent: September 20, 2016
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Seok An, Jae Hyun Park, Chang Hwa Baek, Sung Ho Song
  • Fixing device of diffusing plate and display apparatus having the same
    Patent number: 9097935
    Abstract: A display apparatus includes a liquid crystal display panel configured to display an image, and a backlight unit configured to emit light to the liquid crystal display panel, wherein the backlight unit includes a bottom chassis comprising an accommodation space configured to accommodate a plurality of light sources, a middle mold provided on the bottom chassis, a diffusing plate provided on the middle mold, and a fixing member provided on an outer surface of the bottom chassis and configured to contact one side of the diffusing plate and prevent movement of the diffusing plate.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 4, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sin Wook Hyung, Chang Hwa Baek, Dae Hee Lee, Kyoung Choul Jang, Hyeong Sik Choi
  • FIXING DEVICE OF DIFFUSING PLATE AND DISPLAY APPARATUS HAVING THE SAME
    Publication number: 20140226107
    Abstract: A display apparatus includes a liquid crystal display panel configured to display an image, and a backlight unit configured to emit light to the liquid crystal display panel, wherein the backlight unit includes a bottom chassis comprising an accommodation space configured to accommodate a plurality of light sources, a middle mold provided on the bottom chassis, a diffusing plate provided on the middle mold, and a fixing member provided on an outer surface of the bottom chassis and configured to contact one side of the diffusing plate and prevent movement of the diffusing plate.
    Type: Application
    Filed: February 7, 2014
    Publication date: August 14, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sin Wook HYUNG, Chang Hwa BAEK, Dae Hee LEE, Kyoung Choul JANG, Hyeong Sik CHOI
  • BACKLIGHT UNIT AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20140104877
    Abstract: A backlight unit includes a light guide plate; a light emitting unit configured to irradiate light toward a side portion of the light guide plate, the side portion comprising an upper side part and a lower side part; and a light controller of which at least a portion is in at least one from among the upper and the lower side parts of the side portion of the light guide plate. The light controller includes a first region overlapping the light guide plate and a second region not overlapping the light guide plate, and a reflectivity of the first region is different from a reflectivity of the second region.
    Type: Application
    Filed: October 11, 2013
    Publication date: April 17, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jun Seok AN, Jae Hyun PARK, Chang Hwa BAEK, Sung Ho SONG