Patents by Inventor Yong An Hwang

Yong An Hwang 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).

  • Display device
    Patent number: 9347651
    Abstract: A display device includes an optical member, a display panel disposed on the optical member, and a plurality of light emitting units disposed under the optical member, the optical member comprising, a diffusion layer, and a reflectivity control layer which is disposed under the diffusion layer and reflects a light provided from the light emitting units, including a first base material, reflective materials dispersed in the first base material, a plurality of first portions corresponding to the plurality of light emitting units, and a second portion disposed adjacent to the first portions, where each of the plurality of first portions comprises a greater amount of the reflective materials than the second portion, when a first portion and a second portion represent a unit area having a predetermined size.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: May 24, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Juhwa Ha, Seong-Yong Hwang, Dohun Kim, Young-Min Park, Yongkyu Kang, Byung-Seo Yoon, Juyoun Son
  • METHOD FOR FLOW CONTROL IN NETWORK
    Publication number: 20160127243
    Abstract: Methods for flow control in a network are disclosed. In a dual connectivity network environment where a master base station and a secondary base station exist, an operation method of a master base station may comprise transmitting a data frame including a plurality of data packets to a secondary base station; receiving, from the secondary base station, a delivery status frame requesting retransmission of error data packet among the plurality of data packets; and retransmitting the error data packet indicated by the delivery status frame to the secondary base station. Therefore, network performance can be enhanced.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 5, 2016
    Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun Yong HWANG, Ae Soon PARK, Kyoung Seok LEE
  • Backlight assembly and a display device using the same
    Patent number: 9310547
    Abstract: A backlight assembly includes a light guide member extending in a direction and having a light incident surface and a light exiting surface. A light source faces the light guide member and supplies light to the light guide member through the light incident surface. A reflecting member reflects light exiting from the light exiting surface of the light guide member. The reflecting member includes a groove receiving the light guide member. A first reflecting portion is disposed under the light guide member and reflects light refracted by the light guide member in an upward direction. A second reflecting portion is disposed on the light guide member and reflects light refracted by the light guide member in a downward direction.
    Type: Grant
    Filed: June 5, 2013
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Ran Son, Young-Min Park, Chang-Moo Lee, Seung-Hwa Ha, Seong-Yong Hwang
  • Backlight unit and display device having the same
    Patent number: 9310546
    Abstract: A backlight unit includes a light source which generates light, a light guide plate which guides the light substantially in an upward direction, a first frame member which holds the light source and diffuses the light traveling substantially in the upward direction between the light source and the light guide plate, a second frame member which holds the light guide plate, a third frame member which holds the light guide plate, a reflective plate disposed under the light guide plate and which reflect the light leaked downwardly from the light guide plate substantially to the upward direction, and an optical sheet disposed on the light guide plate and the first to third frame members and which diffuses the light provided from the first frame member and the light guide plate and condenses the light substantially in the upward direction.
    Type: Grant
    Filed: January 2, 2014
    Date of Patent: April 12, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dohun Kim, Jiwon Lee, Seong-Yong Hwang, Hyun-Hwa Song, Sangheon Ye, Sang Hoon Lee
  • Frame conversion apparatus for converting controller area network frame into ethernet frame and frame conversion method thereof
    Patent number: 9294590
    Abstract: A frame conversion apparatus for converting a CAN frame into an Ethernet frame and a frame conversion method thereof, configured to efficiently convert CAN frame data into Ethernet frame data, to achieve high-speed and high-volume transmission.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: March 22, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun-Yong Hwang, Jeong-Hwan Lee, Tae-Man Han
  • Method and apparatus for supporting device-to-device communications
    Patent number: 9288727
    Abstract: A method for supporting Device-to-Device (D2D) communications by a Mobile Station (MS) in a communication system is provided. The method includes performing a network entry procedure with a Base Station (BS) and receiving, from the BS, a BS prefix, a temporary Identifier (ID), and a valid period timer value for the temporary ID, generating a device ID using the BS prefix and the temporary ID, and performing, upon detecting data to be transmitted, communication with a peer MS using the device ID for a time indicated by the valid period timer value. The BS prefix is information unique within the communication system, and the temporary ID is information unique within a coverage area of the BS.
    Type: Grant
    Filed: February 14, 2013
    Date of Patent: March 15, 2016
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Pil-Yong Hwang, Ok-Seon Lee
  • LUBRICATING COATING COMPOSITION AND COMPRESSOR INCLUDING THE SAME
    Publication number: 20160060564
    Abstract: A lubricating coating composition and a compressor including a sliding member coated with the lubricating coating composition. The lubricating coating composition includes a thermosetting or thermoplastic polyimide-based resin as a binder, a solid lubricant, various solvents, and other additives at a controlled ratio. The compressor includes a first member including a first sliding surface and a second member moving relative to the first member including a second sliding surface. The lubricating coating composition is applied to the first sliding surface or the second sliding surface.
    Type: Application
    Filed: June 29, 2015
    Publication date: March 3, 2016
    Inventors: Seung Yong Hwang, Joon Hee Moon, Eun Gi Son, Jae Wook Joo, Jae Hyun Hur, Kye Young Lee
  • Method and apparatus for setting up gateway for AUTOSAR-based vehicle network
    Patent number: 9237196
    Abstract: The present invention provides a method and apparatus for setting up a gateway for an AUTOSAR-based vehicle network. The apparatus for setting up the gateway includes a candidate selection unit for selecting an Electronic Control Unit (ECU) connected to at least two communication clusters, from among a plurality of ECUs, as a gateway candidate, and a gateway generation unit for generating a gateway instance with reference to the ECU selected by the candidate selection unit, and generating a gateway meta-model including the gateway instance based on instance generation input values entered by a user.
    Type: Grant
    Filed: July 31, 2012
    Date of Patent: January 12, 2016
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Joo-Chul Lee, Jeong-Hwan Lee, Hyun-Yong Hwang, Tae-Man Han
  • LENS ASSEMBLY FOR BACKLIGHT SOURCE AND BACKLIGHT UNIT HAVING THE SAME
    Publication number: 20150369451
    Abstract: A lens assembly for a backlight light source includes: a plurality of light emitters, where each of the light emitters includes a first light-emitting device and a second light-emitting device, and the first and second light-emitting devices emit light having different colors from each other; and a lens disposed on the light emitter to cover the light emitter, where the lens is substantially symmetric with respect to a center axis thereof and has a bar shape extending in a direction parallel to the center axis, the light emitters are spaced apart from each other in the direction parallel to the center axis, and the first light-emitting device and the second light-emitting device of each of the light emitters are spaced apart from each other in the direction parallel to the center axis.
    Type: Application
    Filed: April 24, 2015
    Publication date: December 24, 2015
    Inventors: Seong-Yong HWANG, Sang Won LEE, Joong Hyun KIM, Min-Young SONG, Byung-Seo YOON, Gi Cherl KIM
  • Light guide plate and light-emitting assembly having the same
    Patent number: 9188711
    Abstract: A light guide plate includes a light incident surface, a light emitting surface and a light guide surface. The light incident surface receives light from an external light source. The light emitting surface emits outward the light received through the light incident surface. The light guide surface faces the light emitting surface and includes a diffusion pattern formed thereon. The diffusion pattern includes a plurality of porous particles and a plurality of spheroidal particles, and the porous particles have pores formed therein and on surfaces thereof.
    Type: Grant
    Filed: July 28, 2011
    Date of Patent: November 17, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Yong Hwang, Jin-Sung Choi, Dae-Young Joung, Tae-Ho Lee
  • ADSORPTION-TYPE AIR DRYING SYSTEM WITH BLOWER NON-PURGE OPERATION USING COMPRESSED HEAT
    Publication number: 20150290578
    Abstract: The present invention relates to an adsorption-type air drying system, of which the object is to simplify the flow paths of the system, reduce the number of the components such as a valve intricately controlled according to the state of operation, and decrease the cost for constructing the system. Furthermore, the object of the present invention is to provide an adsorption-type air drying system which may be used under various pressure conditions, and smoothly operated regardless of the pressure change of the system by means of a structure compensating for the pressure loss generated during non-purge operation.
    Type: Application
    Filed: May 21, 2013
    Publication date: October 15, 2015
    Applicant: HALLA PATENT & LAW FIRM
    Inventor: Chul Yong HWANG
  • Light-sensitive compound, polymer polymerized with light-sensitive compound and preparation method thereof
    Patent number: 9158134
    Abstract: The present invention relates to a light-sensitive compound, a polymer formed by using the compound, and a production method of the compound and polymer. More particularly, the present invention relates to a unit compound that exhibits light-sensitivity with respect to three different wavelengths, a polymer having light-sensitive, which is polymerized by using the unit compound as a monomer, and a production method of the compound and polymer. The light-sensitive compound and the polymer according to the present invention may be usefully applied to an optical film.
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: October 13, 2015
    Assignee: INDUSTRY-UNIVERSITY COOPERATION FOUNDATION HANYANG UNIVERSITY
    Inventors: Dong Hack Suh, Won Jung Kim, Yun Cheol Yang, Dong Wan Han, Hong Jun Ahn, Jun Yong Hwang, Kyung Mi Lee, Hyun Jin Lee, Seong Heun Cho, Ga Young Han
  • Display device having improved illumination characteristics
    Patent number: 9140845
    Abstract: A display device includes a display panel including a display area in which an image is displayed, and a light unit that includes: a light guide plate including a light receiving surface and a light emitting surface; a light source spaced apart from the light receiving surface while facing the light receiving surface and overlapping the display area; and a light diffusion member extending between the light receiving surface and the light source. The light diffusion member includes at least one of a first pattern formed on a surface of the light diffusion member facing the light emitting surface, and a second pattern formed on another surface of the light diffusion member, thereby implementing uniform brightness across the whole surface of the display panel.
    Type: Grant
    Filed: June 30, 2014
    Date of Patent: September 22, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Yong Hwang, Do Hun Kim, Sang Hoon Lee, Won Jin Kim, Hyun-Hwa Song, Sang Heon Ye, Ji Won Lee
  • Automotive partial networking apparatus and method
    Patent number: 9118568
    Abstract: The present invention relates to a automotive partial networking apparatus and method, which operate or terminate only a specific electronic control unit corresponding to a service currently being provided in a vehicle network composed of a plurality of electronic control units. In the automotive partial networking method, a automotive partial networking apparatus receives a partial networking-only Controller Area Network (CAN) frame from outside of the apparatus. A partial network table is searched based on the CAN frame, and then a CAN identification (ID) is searched for. A partial networking-only CAN frame is generated using the CAN ID. Partial networking is performed by transferring the generated partial networking-only CAN frame to at least one electronic control unit corresponding to a vehicle service.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: August 25, 2015
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Hyun-Yong Hwang, Jeong-Hwan Lee, Joo-Chul Lee, Tae-Man Han
  • BACKLIGHT UNIT
    Publication number: 20150234234
    Abstract: Provided is a backlight unit including a printed circuit board, a light-emitting diode package, a diffusion plate, and a reflection sheet. The light-emitting diode package including a light-emitting part configured to generate a first light. The diffusion plate includes a first diffusion pattern provided on a first region corresponding to the light-emitting diode package and a second diffusion pattern provided on a second region to have a transmittance higher than that of the first diffusion pattern. The reflection sheet includes an absorption pigment configured to absorb a fraction of the first light with a specific wavelength and converting the first light to a second light, and the reflection sheet is configured to reflect the second light toward the first diffusion pattern. The backlight unit can have improved color coordinate uniformity.
    Type: Application
    Filed: August 29, 2014
    Publication date: August 20, 2015
    Inventors: Kang-Woo LEE, JoongHyun KIM, Sung-Kyu SHIM, Seong-Yong HWANG, Dawoon KIM
  • LED LIGHT SOURCE PACKAGE
    Publication number: 20150219286
    Abstract: Provided is a LED light source package comprising a circuit board, a light source seated on an upper portion of the circuit board, and a lens structure arranged on the upper portion of the circuit board via the light source. A surface that faces the light source in the lens structure includes a first inclined surface that projects toward the light source as going to a center portion of the lens structure.
    Type: Application
    Filed: June 4, 2014
    Publication date: August 6, 2015
    Inventors: Byung Seo YOON, Seong Yong HWANG, Kyung Min KIM, Young Min PARK
  • OPTICAL LENS AND BACKLIGHT ASSEMBLY INCLUDING THE SAME
    Publication number: 20150219306
    Abstract: An optical lens includes, in a cross-sectional view, a bottom surface including: a lower flat portion, and a first groove recessed upwardly from the lower flat portion toward a top surface of the optical lens; the top surface including: a protruding upper spherical portion, and a second groove recessed downwardly from the upper spherical portion toward the bottom surface and at a location corresponding to the first groove; and a lateral surface including: a lateral flat portion and lateral curved portions, each of the lateral and curved portions connecting the lower flat portion of the bottom surface and the upper spherical portion of the top surface, to each other.
    Type: Application
    Filed: July 7, 2014
    Publication date: August 6, 2015
    Inventors: Sang Hoon LEE, Seong Yong HWANG
  • Apparatus and method for allocating D2D ID of user terminal in ad-hoc network
    Patent number: 9100818
    Abstract: An apparatus and a method for allocating a Device-to-Device (D2D) IDentity (ID) of a user terminal in an ad-hoc network are provided. The method includes determining that a first D2D ID allocated to the user terminal is duplicated with a second D2D ID allocated to at least one other terminal located within a predefined range from the user terminal, determining whether the user terminal is in communication, when the first D2D ID is duplicated with the second D2D ID, and changing the first D2D ID into a third D2D ID with reference to a D2D ID pool so that the first D2D ID is not duplicated with the second D2D ID, when the user terminal is not in communication.
    Type: Grant
    Filed: August 6, 2012
    Date of Patent: August 4, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ok-Seon Lee, Pil-Yong Hwang
  • OPTICAL PATTERN SHEET, BACKLIGHT UNIT, AND LIQUID CRYSTAL DISPLAY HAVING THE SAME
    Publication number: 20150198756
    Abstract: A backlight unit including an optical pattern sheet and a liquid crystal display are provided. The backlight unit includes a light guide plate, a light source portion arranged adjacent to a side surface of the light guide plate to emit light, a mold frame having an extension portion that covers an upper portion of the light source portion and a part of an upper portion of the light guide plate, and an optical pattern sheet arranged on a lower portion of the extension portion to shade or diffuse incident light, wherein the optical pattern sheet includes a base film and an optical pattern portion positioned on the base film.
    Type: Application
    Filed: April 21, 2014
    Publication date: July 16, 2015
    Applicant: Samsung Display co., Ltd
    Inventors: Hyun Hwa SONG, Do Hun KIM, Dong Hoon KIM, Joong Hyun KIM, Sang Hoon LEE, Ji Won LEE, Seong Yong HWANG
  • Optical unit, backlight assembly having the same and display device having the same
    Patent number: RE45749
    Abstract: An optical unit includes a base, a light-condensing member disposed on the base to condense a first portion of light that is incident onto the base and protrusion members disposed on a surface of the light-condensing member to scatter a second portion of the light that is incident onto the base. A backlight assembly includes light sources, an optical unit receiving light from the light sources to condense and scatter the light, and may also include an optical member disposed over the optical unit to enhance the front luminance of the light. A display device includes light sources, an optical module and a display panel. Thus, display quality of the display device may be enhanced.
    Type: Grant
    Filed: March 16, 2012
    Date of Patent: October 13, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Yong Hwang, In-Sun Hwang, Joong-Hyun Kim, Hye-Eun Park, Sang-Yu Lee