Patents by Inventor Ju-Young Yoon

Ju-Young Yoon 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: 20190377229
    Abstract: A backlight assembly includes an optical member that includes a light guide plate and a wavelength conversion layer disposed on the light guide plate; and a light source disposed on one side of the light guide plate. The wavelength conversion layer includes scattering particles having a particle size of 200 nm or less, and the scattering particles are of an anatase crystal type of titanium dioxide (TiO2).
    Type: Application
    Filed: January 29, 2019
    Publication date: December 12, 2019
    Inventors: Hee Kwang SONG, Ju Young YOON, Young Keun LEE
  • Publication number: 20190324187
    Abstract: An optical member and a display device including the same. The optical member includes a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Inventors: Seong Yong HWANG, Young Min PARK, Ju Young YOON, Sung Kyu SHIM, Sang Won LEE
  • Publication number: 20190293970
    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: June 12, 2019
    Publication date: September 26, 2019
    Inventors: DONG HOON KIM, DONG HYEON LEE, SEUNG HWAN BAEK, JU YOUNG YOON, HAN MOE CHA, YOUNG JUN CHOI
  • Patent number: 10371881
    Abstract: An optical member including a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.
    Type: Grant
    Filed: August 24, 2018
    Date of Patent: August 6, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seong Yong Hwang, Young Min Park, Ju Young Yoon, Sung Kyu Shim, Sang Won Lee
  • Patent number: 10353223
    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: December 20, 2016
    Date of Patent: July 16, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dong Hoon Kim, Dong Hyeon Lee, Seung Hwan Baek, Ju Young Yoon, Han Moe Cha, Young Jun Choi
  • Publication number: 20190204684
    Abstract: A backlight unit includes a light source, a mold frame which accommodates the light source includes at least a first sidewall and an inclined surface protruding and sloping downward from an inner side surface of the first sidewall. A second sidewall may extend from the inclined surface in which the second sidewall is arranged substantially parallel to the first sidewall and has a space therebetween. The support member is disposed on the inclined surface of the mold frame. An optical plate may be disposed on an upper surface of the support member, and the optical plate and the inclined surface of the mold frame define an optical path in a space there between.
    Type: Application
    Filed: November 20, 2018
    Publication date: July 4, 2019
    Inventors: Byung Seo Yoon, Kyu Tae Park, Ju Young Yoon, Seung Pyo Hong
  • Publication number: 20190079240
    Abstract: An optical member including a light guide plate including a surface disposed on a plane defined by a first direction and a second direction crossing the first direction, a low refractive index pattern disposed on the surface of the light guide plate and including an opening for exposing the surface of the light guide plate, a wavelength conversion layer disposed on the low refractive index pattern, and a passivation layer disposed on the wavelength conversion layer and covering a side surface of the wavelength conversion layer and a side surface of the low refractive index pattern at least one side portion. The low refractive index pattern has a lower index of refraction than the light guide plate, and a ratio of an area occupied by the low refractive index pattern to an area of the surface of the light guide plate decreases in the first direction.
    Type: Application
    Filed: August 24, 2018
    Publication date: March 14, 2019
    Inventors: Seong Yong HWANG, Young Min PARK, Ju Young YOON, Sung Kyu SHIM, Sang Won LEE
  • Publication number: 20170237260
    Abstract: An energy storage system includes one or more new and renewable energy power stations generating power with a new or renewable energy source, and an energy storage facility including a plurality of energy storage apparatuses to be charged by one of an external power grid supplying power to a power load and the one or more new and renewable energy power stations, and to be discharged to supply the power to the power load, wherein the plurality of energy storage apparatuses have different charging and/or discharging periods.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 17, 2017
    Inventors: Young Hoon RHIE, Ju Young YOON, Sung Ku PARK
  • Publication number: 20170237259
    Abstract: A method for managing power of an energy storage system (ESS) connected to renewable energy, the ESS including an energy storage device connected to a power grid, a battery management system (BMS), a power conditioning system (PCS), and one or more renewable energy generation facilities producing electric energy from renewable energy, the steps including of determining a predicted power consumption amount of a power load and a predicted power production amount of the renewable energy generation facility, predicting power production of the renewable energy generation facility based on the stored type and characteristics information of the renewable energy generation facilities, determining whether the energy storage device is fully charged with the power production from the renewable energy generation facility, and controlling charging/discharging operation of the energy storage device according to a charge/discharge schedule.
    Type: Application
    Filed: February 14, 2017
    Publication date: August 17, 2017
    Inventors: Ju Young YOON, Sung Ku PARK, Young Hoon RHIE
  • 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
  • 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
  • Patent number: 9316776
    Abstract: A light source assembly includes a base substrate, a resin layer disposed on the base substrate, and exposing a portion of the base substrate, and a first light source disposed on the portion of the base substrate which is exposed by the resin layer. The first light source has a hexahedron shape. The first light source has a face in parallel with the base substrate and having a height smaller than length or width of the face.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: April 19, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Seok-Won Kang, Sang-Chul Byun, Dong-Yeon Kang, Seok-Hyun Nam, Sang-Hyuk Lee, Hyoung-Joo Kim, Ji-Eun Nam, Ju-Young Yoon
  • Patent number: 9200778
    Abstract: A lens has a refractive index of n, and includes a base, a first curved circumferential surface extending from the base, a curved center-edge surface extending from the first curved circumferential surface, and a curved centermost surface extending from the curved center-edge surface. The base includes a groove for receiving a light emitting chip. A distance from a center of the base to a point of the curved center-edge surface is shorter than the radius of curvature for the point of the curved center-edge surface. The curved centermost surface has a concave shape with respect to the base. The lens satisfies A1+A2<90+sin?1(1/n), where A1 an obtuse angle between a main axis and a tangent line of the curved centermost surface, and A2 is an acute angle between a straight line linking the center of the base to the point of the curved centermost surface and the main axis.
    Type: Grant
    Filed: October 21, 2013
    Date of Patent: December 1, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ju-Young Yoon, Gi-Cherl Kim, Jong-Seo Lee, Chun-Ho Song, Se-Ki Park, Sang-Gil Lee, Seock-Hwan Kang
  • 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
  • Patent number: 9039269
    Abstract: A backlight assembly includes a first light source unit including n light emitting members; and a light guide plate including a first side adjacent to the first light source unit, and a first groove adjacent to a first end of the first side.
    Type: Grant
    Filed: January 20, 2012
    Date of Patent: May 26, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byung-Seo Yoon, Ju-Young Yoon, Han-Moe Cha, Sang-Il Park, Hee-Kwang Song, Jung-Kyun Kim, Su-Chang Ryu
  • Publication number: 20150062872
    Abstract: Provided are a light source assembly and a backlight assembly including a lens module. The light source assembly includes: a light source module capable of emitting light and a lens module positioned on the light source module. The lens module includes a light collecting lens collecting the light emitted from the light source module, and a diffusion lens positioned on the light collecting lens, and including an inner curved surface in which light from the light collecting lens is incident and an outer curved surface where the light incident on the inner curved surface exits the diffusion lens, and the light emitted from the light source module forms a light collecting region on the inner curved surface by passing through the light collecting lens.
    Type: Application
    Filed: April 9, 2014
    Publication date: March 5, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hee Kwang SONG, Kang Woo LEE, Seok Hyun NAM, Ju Young YOON, Kwang Wook CHOI
  • Publication number: 20150003107
    Abstract: A light source assembly includes a base substrate, a resin layer disposed on the base substrate, and exposing a portion of the base substrate, and a first light source disposed on the portion of the base substrate which is exposed by the resin layer. The first light source has a hexahedron shape. The first light source has a face in parallel with the base substrate and having a height smaller than length or width of the face.
    Type: Application
    Filed: October 29, 2013
    Publication date: January 1, 2015
    Applicant: Samsung Display Co., Ltd.
    Inventors: Seok-Won KANG, Sang-Chul BYUN, Dong-Yeon KANG, Seok-Hyun NAM, Sang-Hyuk LEE, Hyoung-Joo KIM, Ji-Eun NAM, Ju-Young YOON
  • Patent number: 8917229
    Abstract: A display device and a method of driving the same are provided according to one or more embodiments. According to an embodiment, the display device includes a display panel including a plurality of display blocks arranged in the form of a matrix; a plurality of lighting blocks emitting light to the display panel, each of the lighting blocks arranged so as to correspond to at least one row of the matrix and having adjustable light luminance; and a signal control unit adapted to receive an image signal, determine display block luminance of the respective display blocks when an image is displayed on the respective display blocks in accordance with the image signal, determine the light luminance of the respective lighting blocks by using the display block luminance of some display blocks corresponding to the respective lighting blocks, correct the image signal by using the light luminance and the display block luminance, and provide the corrected image signal to the display panel.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: December 23, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Se-Ki Park, Gi-Cherl Kim, Ju-Young Yoon, Dong-Min Yeo, Eun-Jeong Kang, Ho-Sik Shin
  • Patent number: 8902142
    Abstract: A liquid crystal display includes: a signal controller which converts a first image signal having a first gray level based on an original gamma coefficient into a second image signal having a second gray level based on a target gamma coefficient; a liquid crystal panel connected to the signal controller and which displays an image based on the second image signal; and a light-emitting unit connected to the signal controller and which provides light to the liquid crystal panel. The target gamma coefficient is less than or equal to the original gamma coefficient, and a luminance of the light provided by the light-emitting unit is adjusted by the signal controller to minimize an amount of luminance distortion of the image.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: December 2, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-Young Yoon, Eun-Jeong Kang, Seok-Won Kang, Hee-Kwang Song, Ho-Sik Shin
  • Patent number: 8814415
    Abstract: A light-emitting module includes a light guide plate and a light source unit in accordance with an embodiment. The light guide plate include an upper surface, a lower surface facing the upper surface, a plurality of side surfaces connecting the upper surface and the lower surface, and a cross-sectional surface connected to at least one of the side surfaces. The light source unit includes a substrate disposed in correspondence with the cross-sectional surface and a point light source mounted on the substrate to emit light to the cross-sectional surface. Thus, light-emitting efficiency may be enhanced and the arrangement of point light sources may be optimized, so that a required amount of emitted light may be obtained using a small number of the point light sources. In addition, uniformity of luminance and heat-radiating efficiency may also be enhanced.
    Type: Grant
    Filed: April 23, 2010
    Date of Patent: August 26, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyoung-Joo Kim, Ju-Young Yoon, Jae-Joong Kwon, Chi-O Cho, Jin-Hee Park, Joo-Young Kim, Sung-Kyu Shim