Patents by Inventor Dong-Hyeon Lee

Dong-Hyeon Lee 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).

  • Patent number: 9671546
    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: Grant
    Filed: June 5, 2014
    Date of Patent: June 6, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seung Hwan Baek, Dong Hoon Kim, Seok Hyun Nam, Chan Jae Park, Dong Hyeon Lee, Yeong Bae Lee
  • Patent number: 9658475
    Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.
    Type: Grant
    Filed: July 1, 2014
    Date of Patent: May 23, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Hoon Kim, Dong Hyeon Lee, Seung Hwan Baek, Ju Young Yoon, Han Moe Cha, Young Jun Choi
  • Patent number: 9645305
    Abstract: A backlight unit includes a light source, a light guiding plate disposed on a side of the light source to guide light, a quantum dot bar disposed between the light source and the light guiding plate and spaced apart from the light source and the light guiding plate, the quantum dot bar for performing wavelength conversion of light, and a quantum dot bar receiving unit disposed on lower surfaces of the quantum dot bar and the light guiding plate, wherein the quantum dot bar is seated on the quantum dot bar receiving unit, and the light guiding plate is mounted on the quantum dot bar receiving unit, and wherein the quantum dot bar receiving unit and the light guiding plate are coupled to each other.
    Type: Grant
    Filed: June 19, 2014
    Date of Patent: May 9, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Seo, Dong Hoon Kim, Seul Gi Kim, Dong Hyeon Lee
  • 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
  • Publication number: 20170102586
    Abstract: A backlight assembly includes a light source portion including a plurality of light sources. The light sources are configured to emit light. A wavelength conversion member is disposed on the light source portion. The wavelength conversion member is configured to convert a wavelength of light emitted from the light source portion. The wavelength conversion member includes a first substrate disposed on the light source portion, a second substrate disposed on the first substrate, and a plurality of wavelength conversion layers interposed between the first substrate and the second substrate. Each of the plurality of wavelength conversion layers correspond to a light source of the plurality of light sources.
    Type: Application
    Filed: December 20, 2016
    Publication date: April 13, 2017
    Inventors: DONG HOON KIM, DONG HYEON LEE, SEUNG HWAN BAEK, JU YOUNG YOON, HAN MOE CHA, YOUNG JUN CHOI
  • Publication number: 20170068661
    Abstract: A server, a user terminal, and a method for controlling the server and the user terminal are provided. The server controlling method includes receiving a text from a user terminal, translating the received text to generate a translated text, extracting at least one core word from the translated text, obtaining image information corresponding to the at least one core word with respect to each of the at least one core word, and transmitting the translated text and the extracted image information to the user terminal.
    Type: Application
    Filed: February 1, 2016
    Publication date: March 9, 2017
    Inventors: Ji-sang YU, Jin-sik LEE, Sang-ha KIM, Eun-kyoung KIM, Dong-hyeon LEE, Jae-won LEE
  • Patent number: 9529143
    Abstract: A backlight assembly comprises: a receptacle; a support frame; and a light source module. The support frame is arranged on one side of the receptacle. The light source module is accommodated in the support frame and includes a printed circuit board and light sources. The support frame includes: a bottom portion; a side wall portion; a cover portion; a gap holding portion; and an insertion groove. The side wall portion extends from the bottom portion. The cover portion extends from the side wall portion to an inside. The gap holding portion extends from an end portion of the cover portion in a direction of the bottom portion. The printed circuit board is partially inserted into the insertion groove to be arranged on the upper surface of the bottom portion. The light sources are surrounded by the side wall portion, the cover portion, and the gap holding portion.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: December 27, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Lu Ly Lee, Yong Hwi Kim, Dong Hyeon Lee, Seung Hwa Ha
  • Patent number: 9500796
    Abstract: A quantum dot filled tube may include a tube having a cavity therein and a phosphor disposed inside the tube. The tube may include: a first tube including a first filling cavity therein; a second tube including a second filling cavity therein; and a connecting unit including a third filling cavity configured to connect the first filling cavity and the second filling cavity.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: November 22, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Sul An, Dae-hoon Song, Dong-hyeon Lee
  • Patent number: 9493677
    Abstract: Provided are a polishing composition for chemical mechanical polishing, a method of preparing the polishing composition, and a chemical mechanical polishing method using the polishing composition. The polishing composition which is a water-based polishing composition for planarizing a metal compound thin film including two or more metal elements includes nano-diamond particles as a polishing material and poly(sodium 4-styrenesulfonate) as a dispersion stabilizer for the nano-diamond particles in the polishing composition. Since the nano-diamond particles in the polishing composition have hydrophobic surfaces and poly(sodium 4-styrenesulfonate) effectively stabilizes the nano-diamond particles to prevent the nano-diamond particles from aggregating, excellent polishing characteristics for the metal compound thin film may be obtained due to the nano-diamond particles which have a nano size, high hardness, and excellent dispersibility.
    Type: Grant
    Filed: June 21, 2013
    Date of Patent: November 15, 2016
    Assignees: SK HYNIX INC., KOREA UNIVERSITY RESEARCH AND BUSINESS FOUNDATION
    Inventors: Dae Soon Lim, Il Ho Yang, Seung Koo Lee, Dong Hee Shin, Dong Hyeon Lee, Yang Bok Lee
  • Patent number: 9489942
    Abstract: The present invention is a method for recognizing a statistical voice language using a statistical technique without using a manually tagged corpus. The method comprises: a dialog act clustering step of clustering speech utterances of sentences based on similar dialog acts; a named entity clustering step of extracting a named entity candidate group from the result of the dialog act clustering step and clustering named entities based on the neighboring contextual information of the extracted named entity candidate group; and a main act clustering step of clustering main acts for each region based on the clustered dialog acts and named entity.
    Type: Grant
    Filed: September 6, 2013
    Date of Patent: November 8, 2016
    Assignee: POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Geun Bae Lee, Dong Hyeon Lee, Seong Han Ryu, Yong Hee Kim
  • Patent number: 9443909
    Abstract: An electronic device including a semiconductor memory includes a plurality of first electrodes and a plurality of second electrodes, which are disposed over a substrate and alternately arrayed in a first direction that is parallel to a plane of the substrate; and a plurality of resistance variable patterns, each of which is interposed between a corresponding one of the first electrodes and a corresponding one of the second electrodes, wherein the first and second electrodes and the resistance variable patterns extend upwards by a predetermined height from the substrate.
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 13, 2016
    Assignee: SK HYNIX INC.
    Inventor: Dong-Hyeon Lee
  • Patent number: 9443908
    Abstract: An electronic device includes a semiconductor memory. The semiconductor memory includes a plurality of first pillar electrodes spaced apart from each other, a plurality of second pillar electrodes spaced apart from each other, each second pillar electrode being spaced apart from adjacent first pillar electrodes, and a plurality of variable resistance layers enclosing sidewalls of corresponding second pillar electrodes, respectively, wherein a group of adjacent first pillar electrodes is in contact with one variable resistance layer, and a group of adjacent variable resistance layers is in contact with one first pillar electrode.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 13, 2016
    Assignee: SK HYNIX INC.
    Inventors: Dong-Hyeon Lee, Yun-Sun Choi
  • Patent number: 9429698
    Abstract: A display device includes a light source, a light guide plate in which light emitted from the light source is incident on one surface and is emitted to the other surface, a bottom case configured to accommodate the light guide plate, a wavelength conversion unit between the light source and the light guide plate, a wavelength conversion unit holder disposed on the bottom case on an area corresponding to one end portion of the wavelength conversion unit, and a wave length conversion unit fixed to the wavelength conversion unit holder.
    Type: Grant
    Filed: September 25, 2014
    Date of Patent: August 30, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong-Hyeon Lee, Dong-Hoon Kim, Jin Seo, Jun-Woo You, Lu-Ly Lee
  • Publication number: 20160196782
    Abstract: Disclosed herein is a curved display device, the curved display device according to an exemplary embodiment of the present invention including: a curved display panel including a curved surface, the curved display panel having a first curved side and a second curved side facing each other and a first straight side and a second straight side facing each other, a plurality of pixels, a plurality of gate lines, and a plurality of data lines; first gate drivers connected to the plurality of gate lines; first data drivers positioned at the first straight side and connected to the plurality of data lines; a first printed circuit board connected to the first data driver; and a first signal controller connected to the first printed circuit board.
    Type: Application
    Filed: October 2, 2015
    Publication date: July 7, 2016
    Inventors: Lu Ly LEE, Dong Hyeon LEE, Jae Sang LEE
  • Patent number: 9360614
    Abstract: Provided are quantum dot bar container and backlight unit. According to an aspect of the present invention, there is provided a quantum dot bar container comprising a support including a guide groove formed along a major axis thereof; a cover having a major axis, the cover being orientable to align its major axis substantially parallel to the major axis of the support, the cover including a fixing groove formed along the major axis of the cover so as to face the guide groove; and a fixing portion coupling an end of the support to an end of the cover. The cover and the support are positioned so as to form a window therebetween, when the cover is oriented so that its major axis is substantially parallel to the major axis of the support.
    Type: Grant
    Filed: September 8, 2014
    Date of Patent: June 7, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Hyeon Lee, So Jeong La, Cheol Yong Noh, Jun Woo You, Lu Ly Lee
  • Patent number: 9318102
    Abstract: Disclosed are a speech recognition error correction method and an apparatus thereof. The speech recognition error correction method includes determining a likelihood that a speech recognition result is erroneous, and if the likelihood that the speech recognition result is erroneous is higher than a predetermined standard, generating a parallel corpus according to whether the speech recognition result matches the correct answer corpus, generating a speech recognition model based on the parallel corpus, and correcting an erroneous speech recognition result based on the speech recognition model and the language model. Accordingly, speech recognition errors are corrected.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: April 19, 2016
    Assignee: POSTECH ACADEMY—INDUSTRY FOUNDATION
    Inventors: Geun Bae Lee, Jun Hwi Choi, In Jae Lee, Dong Hyeon Lee, Hong Suck Seo, Yong Hee Kim, Seong Han Ryu, Sang Jun Koo
  • Patent number: 9310645
    Abstract: A light source assembly includes a substrate extending in a first direction, and a plurality of light source parts arranged in the first direction. The light source part includes a light source disposed on the substrate to generate light, a first reflecting element disposed on the substrate and having a first opening which exposes the light source, a second reflecting element disposed on a first reflecting element and having a second opening which exposes the light source, the second reflecting element being smaller than the first reflecting element in a plan view, and a lens disposed on the light source and the second reflecting element to diffuse the light from the light source.
    Type: Grant
    Filed: March 18, 2014
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Lu-Ly Lee, Dong-Hyeon Lee, Young-Min Park
  • 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
  • Publication number: 20160071468
    Abstract: A display device according to an exemplary embodiment of the present invention includes: a display panel including a plurality of pixels respectively displaying a first color, a second color, and a third color; and a signal controller controlling the display panel by processing an input image signal, wherein, in a color weakness mode, at least one color among the first to third colors is displayed with a higher gray than an input gray of the input image signal, and the other colors are displayed with the same gray as the input gray of the input image signal.
    Type: Application
    Filed: February 16, 2015
    Publication date: March 10, 2016
    Inventors: Chan Young PARK, Jong Sung BAE, Dong Hyeon LEE, Jusuck LEE, Hee Soon JEONG, Seong Min CHO, Eun Sil HAN, Jeong Jin HONG
  • Patent number: 9268084
    Abstract: A backlight assembly includes a light emitting part, a light guide plate and a lower receiving container. The light guide plate includes a side surface and a light exiting surface. The lower receiving container includes a heat sinking part and a rigid part having a strength greater than the heat sinking part.
    Type: Grant
    Filed: March 1, 2012
    Date of Patent: February 23, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Chul Bae, Dong-Hyeon Lee, Seong-Sik Choi, Si-Joon Song