Patents by Inventor Hyun-Hwa SONG

Hyun-Hwa SONG 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: 9741977
    Abstract: A rechargeable battery includes: an electrode assembly including first electrodes; separators; and second electrodes, wherein the first electrodes, separators, and second electrodes are laminated together and are fixed by a fixing portion at one side; a case, which is flexible, accommodating the electrode assembly, and pressure-adjusted after sealing; a marginal region between a free end of the electrode assembly and an inside surface of the case; and a spacing portion at the marginal region midway along the case, the spacing portion having a space that is narrower than a case thickness, the spacing portion accommodating changes in a length of the free end of the electrode assembly.
    Type: Grant
    Filed: August 14, 2015
    Date of Patent: August 22, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jeong-Doo Yi, Jun-Won Suh, Ju-Hee Sohn, Hyun-Hwa Song, Ju-Hyeong Han, Seok-Hun Hong
  • Publication number: 20170155099
    Abstract: A flexible rechargeable battery includes: a first conductive substrate; a second conductive substrate facing the first conductive substrate; and a sealant at edges of the first conductive substrate and the second conductive substrate. The first conductive substrate includes a first resin layer, a first barrier layer, a second resin layer, a first electrode current collector layer, and a first electrode coating layer that are sequentially stacked inward from a first side of the flexible rechargeable battery. The second conductive substrate includes a third resin layer, a second barrier layer, a fourth resin layer, a second electrode current collector layer, and a second electrode coating layer that are sequentially stacked inward from a second side of the flexible rechargeable battery.
    Type: Application
    Filed: November 7, 2016
    Publication date: June 1, 2017
    Inventors: Hyun-Hwa Song, Jun-Won Suh, Jan-Dee Kim, Jeong-Doo Yi, Jung-Gyu Nam, Bong-Kyoung Park, Jung-Yup Yang, Ju-Hyeong Han, Ju-Hee Sohn, Hye-Ri Eom, Da-Woon Han, Sol Choi, Seok-Hun Hong
  • Publication number: 20170155098
    Abstract: A flexible rechargeable battery includes a first conductive member including a first resin layer, a first barrier layer, a second resin layer, a first electrode current collector layer, and a first electrode coating layer that are sequentially layered from an outer side thereof, a second conductive member that faces the first conductive member, the second conductive member including a third resin layer, a second barrier layer, a fourth resin layer, a second electrode current collector layer, and a second electrode coating layer that are sequentially layered from an outer side thereof, and a sealing portion located on edges of the first conductive member and the second conductive member. The sealing portion is made of a metallic material.
    Type: Application
    Filed: November 2, 2016
    Publication date: June 1, 2017
    Inventors: Bong-Kyoung PARK, Jun-Won SUH, Jung-Gyu NAM, Jeong-Doo YI, Jung-Yup YANG, Ju-Hyeong HAN, Ju-Hee SOHN, Hye-Ri EOM, Da-Woon HAN, Hyun-Hwa SONG, Sol CHOI, Seok-Hun HONG, Jan-Dee KIM
  • Publication number: 20170153377
    Abstract: A display device includes a display panel, a light guide plate disposed under the display panel, a light source which provides a side surface of the light guide plate with incident light, a reflective plate disposed under the light guide plate, a first optical adjustment member which includes first scattering particles which scatter a first color wavelength range of the incident light into a first value and scatter a second color wavelength range of the incident light into a second value, and a second optical adjustment member which includes second scattering particles which scatter the first color wavelength range of the incident light into a third value and scatter the second color wavelength range of the incident light into a fourth value.
    Type: Application
    Filed: June 29, 2016
    Publication date: June 1, 2017
    Inventors: Hyun-hwa SONG, Chan-jae PARK, Hayoung LEE, Seunghwan CHUNG
  • Publication number: 20170155100
    Abstract: A battery includes a conductive substrate, the conductive substrate including a first resin layer, a barrier layer, a second resin layer, a first electrode current collector layer, and a first electrode coating layer that are sequentially stacked inward from an outermost side of the battery, an exterior member disposed to face the conductive substrate, a sealing portion formed at edges of the conductive substrate and the exterior member, and at least one second inner electrode positioned between the conductive substrate and the exterior member and stacked using a separator as a border.
    Type: Application
    Filed: November 9, 2016
    Publication date: June 1, 2017
    Inventors: Hyun-Hwa SONG, Jun-Won SUH, Jan-Dee KIM, Jung-Gyu NAM, Jeong-Doo YI, Bong-Kyoung PARK, Jung-Yup YANG, Ju-Hyeong HAN, Ju-Hee SOHN, Hye-Ri EOM, Da-Woon HAN, Sol CHOI, Seok-Hun HONG
  • Publication number: 20170149026
    Abstract: A case for a rechargeable battery and a rechargeable battery including the case, the case including a sequentially deposited first resin layer and second resin layer, wherein the second resin layer includes a butyl-based resin.
    Type: Application
    Filed: October 31, 2016
    Publication date: May 25, 2017
    Inventors: Jung-Yup YANG, Jun-Won SUH, Jeong-Doo YI, Jan-Dee KIM, Bong-Kyoung PARK, Ju-Hyeong HAN, Ju-hee SOHN, Da-Woon HAN, Hye-Ri EOM, Hyun-Hwa SONG, Sol CHOI, Seok-Hun HONG
  • Patent number: 9650567
    Abstract: A wavelength converter and a liquid crystal display having the same, the wavelength converter including a first pattern that converts a wavelength of light into red light, and a second pattern that converts a wavelength of light into green light. The first pattern and the second pattern are alternately disposed, and an optical path length La of each of the first pattern and the second pattern is given by Equation (1): La=(?a/2)×m, wherein La is an optical length of an a-th pattern, ?a is a wavelength of light converted by the a-th pattern, a is one or two, and m is a natural number.
    Type: Grant
    Filed: April 4, 2014
    Date of Patent: May 16, 2017
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Hwa Song, Dong Hoon Kim, Sang Chul Byun, Sang Hoon Lee, Seung Hwan Chung, Han Moe Cha
  • Patent number: 9588273
    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: Grant
    Filed: April 21, 2014
    Date of Patent: March 7, 2017
    Assignee: 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
  • Publication number: 20170059766
    Abstract: A display device includes a first display panel including a display surface defined by first and second directions, a second display panel spaced apart from the first display panel in a third direction perpendicular to the display surface, and a backlight unit disposed between the first and second display panels to provide a light to the first and second display panels. The backlight unit includes a light emitting element, a first exit light guide plate, a second exit light guide plate spaced apart from the first exit light guide plate, a first light-division light guide member, and a second light-division light guide member.
    Type: Application
    Filed: May 18, 2016
    Publication date: March 2, 2017
    Inventors: Chan-jae PARK, Hyun-hwa SONG, Seunghwan BAEK
  • Publication number: 20170010405
    Abstract: A light guide plate includes a body and a light guide pattern. The body includes a glass doped with a dopant having photosensitivity and first regions spaced apart from each other are defined in the body. The light guide pattern includes a first pattern layer portion provided in plural inside the body to respectively correspond to the first regions. In addition, the first pattern layer has a higher refractive index than an intermediate portion of the body between two first pattern layer portions adjacent to each other.
    Type: Application
    Filed: March 29, 2016
    Publication date: January 12, 2017
    Inventors: Hayoung LEE, Sangwon LEE, Hyun-hwa SONG, Seunghwan CHUNG
  • Publication number: 20160268580
    Abstract: A rechargeable battery is disclosed. In one aspect, the battery includes an electrode assembly including a first electrode, a separator, and a second electrode stacked together, wherein the first electrode, the separator, and the second electrode are fixed at a fixing portion on a first side of the electrode assembly. A case accommodates the electrode assembly; and first and second electrode tabs are respectively connected to the first and second electrodes and extend from a first end portion of the case so as to form a tab gap therebetween. Each of the first and second electrode tabs includes first and second adhesive portions opposing each other, at least one wire having a bent portion interconnecting the first and second adhesive portions, and an insulating member covering the bent portion.
    Type: Application
    Filed: November 23, 2015
    Publication date: September 15, 2016
    Inventors: Jeong-Doo Yi, Jun-Won Suh, Ju-Hyeong Han, Ju-Hee Sohn, Hyun-Hwa Song, Seok-Hun Hong
  • Publication number: 20160268557
    Abstract: A rechargeable battery includes: an electrode assembly formed by repeatedly stacking first and second electrodes while interposing a separator therebetween, the first and second electrodes each having an uncoated region and a coated region; and a case having a flexible property and accommodating the electrode assembly. The electrode assembly includes a fixing portion where the separator is attached and fixed to the uncoated regions of the first and second electrodes.
    Type: Application
    Filed: November 20, 2015
    Publication date: September 15, 2016
    Inventors: Ju-Hee Sohn, Jun-Won Suh, Jeong-Doo Yi, Ju-Hyeong Han, Hyun-Hwa Song, Seok-Hun Hong
  • Publication number: 20160238837
    Abstract: Provided is a structure for a display apparatus. The structure for a display apparatus includes: a chassis having a plate shape and provided with a plurality of through holes; a reflection layer formed on one surface of the chassis: and at least one moisture barrier layer formed on the other surface of the chassis.
    Type: Application
    Filed: January 27, 2016
    Publication date: August 18, 2016
    Inventors: Hyun-Hwa SONG, Kang-Woo LEE, Seung Hwan CHUNG, Young Jun CHOI
  • Publication number: 20160230951
    Abstract: A display device includes a display panel and a backlight unit. The display panel receives a light to display an image and has a first radius of curvature. The backlight unit is disposed under the display panel to provide the light to the display panel and has a second radius of curvature. The backlight unit includes a plurality of light sources and a plurality of scattering units. The light sources emit the light and the scattering units scatter at least a portion of the light.
    Type: Application
    Filed: December 2, 2015
    Publication date: August 11, 2016
    Inventors: Kang-woo LEE, Dawoon KIM, Yu-dong KIM, Hyun-hwa SONG, Myeong-ju SHIN, Seunghwan CHUNG
  • Publication number: 20160155997
    Abstract: A rechargeable battery includes: an electrode assembly including first electrodes; separators; and second electrodes, wherein the first electrodes, separators, and second electrodes are laminated together and are fixed by a fixing portion at one side; a case, which is flexible, accommodating the electrode assembly, and pressure-adjusted after sealing; a marginal region between a free end of the electrode assembly and an inside surface of the case; and a spacing portion at the marginal region midway along the case, the spacing portion having a space that is narrower than a case thickness, the spacing portion accommodating changes in a length of the free end of the electrode assembly.
    Type: Application
    Filed: August 14, 2015
    Publication date: June 2, 2016
    Inventors: Jeong-Doo Yi, Jun-Won Suh, Ju-Hee Sohn, Hyun-Hwa Song, Ju-Hyeong Han, Seok-Hun Hong
  • Publication number: 20160149171
    Abstract: A rechargeable battery is provided which includes a stacked electrode assembly in a pouch where the electrode assembly changes in length due to an applied bending stress. According to an exemplary embodiment, a rechargeable battery includes: an electrode assembly including a first electrode, a separator, and a second electrode stacked together and the first electrode, the separator, and the second electrode being fixed with respect to each other by a fixed part at one side of the electrode assembly; and a flexible case accommodating the electrode assembly therein, wherein a gap between a free end of the electrode assembly and an inner surface of the case to accommodate a change in length of the electrode assembly at the free end when the electrode assembly is bent.
    Type: Application
    Filed: July 14, 2015
    Publication date: May 26, 2016
    Inventors: Jun-Won Suh, Jeong-Doo Yi, Ju-Hyeong Han, Ju-Hee Sohn, Hyun-Hwa Song, Seok-Hun Hong
  • Publication number: 20160141587
    Abstract: Disclosed herein is a rechargeable battery capable of maintaining alignment among a positive electrode, a negative electrode, and a separator of an electrode assembly even in the case in which a form thereof is changed or bent. The rechargeable battery includes: an electrode assembly formed by stacking a first electrode, a separator, and a second electrode, and having an alignment groove formed therein; a case having flexibility and accommodating the electrode assembly therein; and an alignment guide protruding from the case and partially coupled to the alignment groove so as to accommodate and guide a change in a length of the electrode assembly depending on bending.
    Type: Application
    Filed: July 8, 2015
    Publication date: May 19, 2016
    Inventors: Jun-Won Suh, Jeong-Doo Yi, Ju-Hyeong Han, Ju-Hee Sohn, Hyun-Hwa Song, Seok-Hun Hong
  • 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
  • Patent number: 9240132
    Abstract: A nanophosphor sheet is presented. The nanophosphor sheet may include a base layer, a plurality of core-shell phosphors dispersed in the base layer, and a coating layer surrounding at least one core-shell phosphor among the plurality of core-shell phosphors. Also presented is a backlight device that includes a light source emitting light, a light guide plate receiving the light, and a plurality of core-shell phosphors positioned to receive the light and convert the light to white light. The core-shell phosphors may be incorporated into the light guide plate or be positioned on the light guide plate as a separate layer.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: January 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Hoon Kim, Hyun-Hwa Song, Seung Hwan Chung, Young Jun Choi, Byung Choon Yang, Han Moe Cha
  • Patent number: 9202399
    Abstract: A nanophosphor sheet is presented. The nanophosphor sheet may include a base layer, a plurality of core-shell phosphors dispersed in the base layer, and a coating layer surrounding at least one core-shell phosphor among the plurality of core-shell phosphors. Also presented is a backlight device that includes a light source emitting light, a light guide plate receiving the light, and a plurality of core-shell phosphors positioned to receive the light and convert the light to white light. The core-shell phosphors may be incorporated into the light guide plate or be positioned on the light guide plate as a separate layer.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: December 1, 2015
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Hoon Kim, Hyun-Hwa Song, Seung Hwan Chung, Young Jun Choi, Byung Choon Yang, Han Moe Cha