Patents by Inventor Yong-Hoon Kwon

Yong-Hoon Kwon 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: 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: 20180108940
    Abstract: The present invention provides a positive electrode active material for a lithium secondary battery, which includes a secondary particle core formed by agglomeration of primary particles of a nickel manganese cobalt-based first lithium composite metal oxide, an intermediate layer disposed on the core and including rod-shaped nickel manganese cobalt-based second lithium composite metal oxide particles radially oriented from a center of an active material particle to a surface thereof, and a shell disposed on the intermediate layer and including a nickel manganese cobalt-based third lithium composite metal oxide, and a lithium secondary battery including the same.
    Type: Application
    Filed: April 29, 2016
    Publication date: April 19, 2018
    Applicant: LG Chem, Ltd.
    Inventors: Yong Hoon Kwon, Ki Young Lee
  • Publication number: 20180017826
    Abstract: A display apparatus includes a display panel which displays an image with light; and a side sealing member which is configured to block the light. The side sealing member contacts at least one side surface of the display panel to cover the one side surface. The side sealing member has an elongation of about 100% to about 300% inclusive.
    Type: Application
    Filed: July 12, 2017
    Publication date: January 18, 2018
    Inventors: Woosuk SEO, Yong-hoon KWON, Seokhyun NAM, Byoungdae YE
  • Patent number: 9870740
    Abstract: A liquid crystal display panel comprises a backlight unit including an optical assembly and configured to differentiate the liquid crystal display panel into a plurality of blocks and to illuminate light to each of the plurality of blocks; a location sensor configured to sense a location of a user watching the liquid crystal display panel; a backlight controller configured to output a dimming value corresponding to a brightness of each of the plurality of blocks according to a result of sensing by the location sensor; and a backlight driver configured to generate a driving current corresponding to the dimming value of each block and to provide the generated driving current to the backlight unit corresponding to each of the plurality of blocks.
    Type: Grant
    Filed: June 9, 2015
    Date of Patent: January 16, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Ki Park, Yong-Hoon Kwon, Bong-Hyun You, Joon-Chul Goh
  • Publication number: 20170336053
    Abstract: Disclosed is a display device that can uniformly transmit light emitted from a light source to the entire display panel without using a light guide plate. The display device includes a display panel, a backlight assembly supplying light to the display panel, and a lower cover receiving the backlight assembly. The backlight assembly includes a light source, a circuit board mounted with the light source, and a reflection cover coupled to the circuit board to reflect light emitted from the light source and formed of a bendable plate type member.
    Type: Application
    Filed: August 9, 2017
    Publication date: November 23, 2017
    Inventors: Kyung-Min KIM, Sung-Kyu SHIM, Yong-Hoon KWON, Do Hun KIM, Dong Hyeon LEE, Seung Hwan CHUNG, Seung-Hwa HA, Se Ki PARK, Seong-Yong HWANG, You Ra KIM
  • Patent number: 9824638
    Abstract: A display device including a display panel, a timing controller, a backlight unit, and a backlight controller. The display panel includes a plurality of display blocks, and receives an image signal and display an image. The backlight unit includes a-numbered red light sources, b-numbered green light sources (a and b are natural numbers, b<a), and a-numbered blue light sources, and provides light to the display panel. The backlight controller calculates a red luminance average, a green luminance average, and a blue luminance average of the block image signals, respectively, controls a duty ratio of the red light sources based on the red and green luminance averages, controls a duty ratio of the green light sources based on the green luminance average, and controls a duty ratio of the blue light sources based on the blue and green luminance averages.
    Type: Grant
    Filed: September 18, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yong-hoon Kwon, Junghyun Kim, Seokhyun Nam, Hee-kwang Song, Ho-sik Shin
  • Patent number: 9824647
    Abstract: A controlling method of a display apparatus, which includes pixels each including red, green, blue, and white sub-pixels, includes receiving image data in a unit of frame, analyzing the image data to extract pixel data with respect to a first pixel among the pixels and block data with respect to a first block of a backlight unit, which corresponds to the first pixel, normalizing the pixel data and the block data, comparing the normalized pixel data and the normalized block data, and generating white compensation data corresponding to the white sub-pixel on the basis of the compared result.
    Type: Grant
    Filed: July 10, 2015
    Date of Patent: November 21, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ho-Sik Shin, Junghyun Kim, Yong-hoon Kwon, Hee-kwang Song
  • Patent number: 9752753
    Abstract: Disclosed is a display device that can uniformly transmit light emitted from a light source to the entire display panel without using a light guide plate. The display device includes a display panel, a backlight assembly supplying light to the display panel, and a lower cover receiving the backlight assembly. The backlight assembly includes a light source, a circuit board mounted with the light source, and a reflection cover coupled to the circuit board to reflect light emitted from the light source and formed of a bendable plate type member.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: September 5, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kyung-Min Kim, Sung-Kyu Shim, Yong-Hoon Kwon, Do Hun Kim, Dong Hyeon Lee, Seung Hwan Chung, Seung-Hwa Ha, Se Ki Park, Seong-Yong Hwang, You Ra Kim
  • 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: 20160379544
    Abstract: A display apparatus includes an image sensor, a display panel, a timing controller, and a data driver. The image sensor senses a background image and generates background image data based on the background image. The display panel includes a first group of pixels disposed on a first area of the display panel and a second group of pixels disposed on a second area of the display panel. The timing controller extracts partial image data corresponding to the first area from input image data and partial background image data corresponding to the second area from the first background image data. The data driver generates first data voltages based on the partial image data, generates second data voltages based on the partial background image data, to output the first data voltages to the first group of pixels, and to output the second data voltages to the second group of pixels.
    Type: Application
    Filed: January 11, 2016
    Publication date: December 29, 2016
    Inventors: SE-Kl PARK, YONG-HOON KWON, BYOUNG-DAE YE
  • Patent number: 9418601
    Abstract: A display device includes a display panel configured to display an image corresponding to image data input thereto and be divided into a plurality of display blocks, a backlight unit configured to supply light to the display panel and including a light guide panel and a main light source module which supplies light to the light guide panel, and a luminance boosting unit configured to supply boosted light to the plurality of display blocks based on the image data and including a plurality of light source modules arranged to correspond to the plurality of display blocks, respectively.
    Type: Grant
    Filed: July 25, 2014
    Date of Patent: August 16, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ho Sik Shin, Eui Jeong Kang, Yong Hoon Kwon, Jung Hyun Kim, Hee Kwang Song
  • Patent number: 9405056
    Abstract: A display apparatus with at least two light guide plates, each including a light incident surface and a light exiting surface, the light guide plates being spaced apart from each other so as to form a gap therebetween. The display apparatus also has a light source disposed adjacent to at least one side portion of the light guide plates to emit light to the light incident surface, a display panel positioned to receive light from the light exiting surfaces to facilitate display of an image, and a diffusion member. The diffusion member covers the gap, so as to diffuse light directed toward the display panel.
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: August 2, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Eui Jeong Kang, Dongmin Yeo, Taeho Lee, Yong-Hoon Kwon, Min-Young Song, Seung Hwan Baek
  • Publication number: 20160217752
    Abstract: A controlling method of a display apparatus, which includes pixels each including red, green, blue, and white sub-pixels, includes receiving image data in a unit of frame, analyzing the image data to extract pixel data with respect to a first pixel among the pixels and block data with respect to a first block of a backlight unit, which corresponds to the first pixel, normalizing the pixel data and the block data, comparing the normalized pixel data and the normalized block data, and generating white compensation data corresponding to the white sub-pixel on the basis of the compared result.
    Type: Application
    Filed: July 10, 2015
    Publication date: July 28, 2016
    Inventors: Ho-Sik SHIN, Junghyun KIM, Yong-hoon KWON, Hee-kwang SONG
  • Publication number: 20160203771
    Abstract: A display device including a display panel, a timing controller, a backlight unit, and a backlight controller. The display panel includes a plurality of display blocks, and receives an image signal and display an image. The backlight unit includes a-numbered red light sources, b-numbered green light sources (a and b are natural numbers, b<a), and a-numbered blue light sources, and provides light to the display panel. The backlight controller calculates a red luminance average, a green luminance average, and a blue luminance average of the block image signals, respectively, controls a duty ratio of the red light sources based on the red and green luminance averages, controls a duty ratio of the green light sources based on the green luminance average, and controls a duty ratio of the blue light sources based on the blue and green luminance averages.
    Type: Application
    Filed: September 18, 2015
    Publication date: July 14, 2016
    Inventors: Yong-hoon KWON, Junghyun KIM, Seokhyun NAM, Hee-kwang SONG, Ho-sik SHIN
  • Patent number: 9311893
    Abstract: A display device includes a display panel which displays an image corresponding to input image data and is divided into a display blocks, a light source module which includes a light source blocks respectively corresponding to the display blocks, each of the light source blocks including a first light source which emits light of a first color, and a second light source which emits light of a combination of second and third colors, a dimming controller which outputs a dimming signal, a light source module driver which drives each of the light source blocks based on the dimming signal, where the dimming controller detects block image data corresponding to each of the display blocks from the image data, calculates color data based on the block image data, and provides a first dimming signal and a second dimming signal to the light source module driver.
    Type: Grant
    Filed: June 17, 2014
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yong Hoon Kwon, Hee Kwang Song, Ho Sik Shin, Jung Hyun Kim, Seok Hyun Nam
  • Publication number: 20160078819
    Abstract: A liquid crystal display panel comprises a backlight unit including an optical assembly and configured to differentiate the liquid crystal display panel into a plurality of blocks and to illuminate light to each of the plurality of blocks; a location sensor configured to sense a location of a user watching the liquid crystal display panel; a backlight controller configured to output a dimming value corresponding to a brightness of each of the plurality of blocks according to a result of sensing by the location sensor; and a backlight driver configured to generate a driving current corresponding to the dimming value of each block and to provide the generated driving current to the backlight unit corresponding to each of the plurality of blocks.
    Type: Application
    Filed: June 9, 2015
    Publication date: March 17, 2016
    Inventors: Se-Ki PARK, Yong-Hoon KWON, Bong-Hyun YOU, Joon-Chul GOH
  • Patent number: 9252429
    Abstract: Provided are an electrode additive coated with a coating material made of electrically conductive materials such as metal hydroxides, metal oxides or metal carbonates, and an electrode and a lithium secondary battery comprising the same. The electrode additive in accordance with the present invention can improve high temperature storage characteristics of the battery, without deterioration of performance thereof.
    Type: Grant
    Filed: May 16, 2012
    Date of Patent: February 2, 2016
    Assignee: LG Chem, Ltd.
    Inventors: Hong-Kyu Park, Kwang Hoon Kim, Sun kyu Kim, Seung Il Yoo, Jae-Up Jang, Yong Hoon Kwon, Kyungmin Chun
  • Publication number: 20150268409
    Abstract: A display apparatus with at least two light guide plates, each including a light incident surface and a light exiting surface, the light guide plates being spaced apart from each other so as to form a gap therebetween. The display apparatus also has a light source disposed adjacent to at least one side portion of the light guide plates to emit light to the light incident surface, a display panel positioned to receive light from the light exiting surfaces to facilitate display of an image, and a diffusion member. The diffusion member covers the gap, so as to diffuse light directed toward the display panel.
    Type: Application
    Filed: June 4, 2015
    Publication date: September 24, 2015
    Inventors: Eui Jeong KANG, Dongmin YEO, Taeho LEE, Yong-Hoon KWON, Min-Young SONG, Seung Hwan BAEK
  • Publication number: 20150269894
    Abstract: A display device includes a display panel configured to display an image corresponding to image data input thereto and be divided into a plurality of display blocks, a backlight unit configured to supply light to the display panel and including a light guide panel and a main light source module which supplies light to the light guide panel, and a luminance boosting unit configured to supply boosted light to the plurality of display blocks based on the image data and including a plurality of light source modules arranged to correspond to the plurality of display blocks, respectively.
    Type: Application
    Filed: July 25, 2014
    Publication date: September 24, 2015
    Inventors: Ho Sik SHIN, Eui Jeong KANG, Yong Hoon KWON, Jung Hyun KIM, Hee Kwang SONG
  • Patent number: 9117388
    Abstract: An approach is provided for a light source module and a display device including the same. The light source module includes two first light source packages configured to emit light of a first color, one or more second light source packages disposed between the two first light source packages, and a plurality of third light source packages disposed between the two first light source packages and alternately arranged with the one or more second light source packages. The one or more second light source packages are configured to emit light of the first color and the plurality of third light source packages are configured to emit light of a second color. An intensity of light emitted from each of the one or more second light source packages is approximately twice an intensity of light emitted from each of the two first light source packages.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: August 25, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Han Moe Cha, Yong-Hoon Kwon, Jung Kyun Kim, Ju Young Yoon