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).

  • Light source module and method of manufacturing the same
    Patent number: 8760049
    Abstract: A light source module includes a receiving container, a first light source, a second light source, a first resin, and a second resin. The receiving container includes an upper surface, a first bottom surface, and a second bottom surface. The first bottom surface has a first depth from the upper surface. The second bottom surface has a second depth from the upper surface. The first light source is disposed on the first bottom surface. The first light source generates first color light. The second light source is disposed on the second bottom surface. The second light source generates second color light. The first resin is formed on the first light source. The first resin includes a phosphor emitting third color light. The second resin is formed on the first resin and the second light source.
    Type: Grant
    Filed: August 4, 2011
    Date of Patent: June 24, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Han-Moe Cha, Ju-Young Yoon, Jin Seo
  • PHOTONIC CRYSTAL PHOSPHOR
    Publication number: 20140158936
    Abstract: A photonic crystal phosphor includes a phosphor which absorbs light and emits excited light having a radiation spectrum, a first coating layer covering the phosphor and having a first thickness, and a second coating layer covering the phosphor and having a second thickness. The first coating layer has a first refractive index. The second coating layer has a second refractive index. The first coating layer is between the phosphor and the second coating layer.
    Type: Application
    Filed: March 22, 2013
    Publication date: June 12, 2014
    Applicant: Samsung Display Co., LTD.
    Inventors: Chi-O CHO, Myeong-Ju SHIN, Dong-Yeon KANG, Dong-Hwan KIM, Ju-Young YOON, Young-Chun KIM, Jung-Kyun KIM
  • Light emitting diode and lens for the same
    Patent number: 8696175
    Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens 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 therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always 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.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: April 15, 2014
    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
  • LIGHT EMITTING DIODE AND LENS FOR THE SAME
    Publication number: 20140043831
    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: Application
    Filed: October 21, 2013
    Publication date: February 13, 2014
    Applicant: 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
  • Light emitting diode and lens for the same
    Patent number: 8567998
    Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens 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 therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always 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.
    Type: Grant
    Filed: June 14, 2011
    Date of Patent: October 29, 2013
    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
  • Backlight assembly and display device having the same
    Patent number: 8540413
    Abstract: A backlight assembly includes a light guiding plate, a driving board, a light emitting chip and a flexible board. The light guiding plate has a plate shape. The driving board is disposed substantially parallel with a side surface of the light guiding plate to face the side surface of the light guiding plate. The light emitting chip is formed on a surface of the driving board to generate light toward the side surface of the light guiding plate. The flexible board has a connection wiring that provides a power source to the driving board. The driving board is disposed on the flexible board.
    Type: Grant
    Filed: July 24, 2009
    Date of Patent: September 24, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ju-Young Yoon, Eun-Jeong Kang, Gl-Cherl Kim, Moon-Hwan Chang
  • LIGHT SOURCE MODULE AND DISPLAY DEVICE INCLUDING THE SAME
    Publication number: 20130241962
    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: Application
    Filed: July 2, 2012
    Publication date: September 19, 2013
    Applicant: Samsung Display Co., Ltd.
    Inventors: Han Moe CHA, Yong-Hoon KWON, Jung Kyun KIM, Ju Young YOON
  • Backlight unit having fixed and removable metal core printed circuit board and liquid crystal display module having the same
    Patent number: 8502933
    Abstract: A backlight unit includes a mold frame, a metal core printed circuit board (“MCPCB”) on which at least one light emitting diode (“LED”) is mounted, a reflector, a light guide plate, and an optical sheet. The mold frame includes an MCPCB fixing portion, the MCPCB is directly and removably disposed on the MCPCB fixing portion, and a lower surface of the MCPCB is exposed to the outside of the mold frame. On the MCPCB, a reflector, a light guide plate, and an optical sheet are placed in the order named. The light guide plate has a light entering surface facing the LED.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: August 6, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jin-Hee Park, Tae-Seok Jang, Seok-Won Kang, Yong-Woo Lee, Ju-Young Yoon, Jae-Joong Kwon, Seung-Hwa Ha
  • Two dimensional light source using light emitting diode and liquid crystal display device using the two dimensional light source
    Patent number: 8368846
    Abstract: A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to the wires through the holes, a buffer layer covering the LED chip, and an optical layer that is disposed on the buffer layer and has an optical pattern formed at a portion of the optical layer corresponding to the LED chip.
    Type: Grant
    Filed: March 21, 2011
    Date of Patent: February 5, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gi-Cherl Kim, Se-Ki Park, Ju-Young Yoon, Byung-Choon Yang, Seok-Hyun Nam, Sang-Yu Lee
  • LIGHT GUIDE PLATE AND BACKLIGHT ASSEMBLY INCLUDING THE SAME
    Publication number: 20130021821
    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: Application
    Filed: January 20, 2012
    Publication date: January 24, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Byung-Seo YOON, Ju-Young YOON, Han-Moe CHA, Sang-Il PARK, Hee-Kwang SONG, Jung-Kyun KIM, Su-Chang RYU
  • LIGHT SOURCE MODULE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20120195020
    Abstract: A light source module includes a receiving container, a first light source, a second light source, a first resin, and a second resin. The receiving container includes an upper surface, a first bottom surface, and a second bottom surface. The first bottom surface has a first depth from the upper surface. The second bottom surface has a second depth from the upper surface. The first light source is disposed on the first bottom surface. The first light source generates first color light. The second light source is disposed on the second bottom surface. The second light source generates second color light. The first resin is formed on the first light source. The first resin includes a phosphor emitting third color light. The second resin is formed on the first resin and the second light source.
    Type: Application
    Filed: August 4, 2011
    Publication date: August 2, 2012
    Inventors: Han-Moe Cha, Ju-Young Yoon, Jin Seo
  • LIGHT EMITTNG MODULE, METHOD OF MANUFACTURING THE SAME AND DISPLAY APPARATUS HAVING THE SAME
    Publication number: 20120175651
    Abstract: A light emitting module includes a light emitting package and a lead frame. The light emitting package includes a light emitting chip emitting light, a first lead electrically connected to the light emitting chip, and a second lead spaced apart from the first lead and electrically connected to the light emitting chip. The light emitting package is mounted on the lead frame. The lead frame includes a third lead electrically connected to the first lead, a fourth lead electrically connected to the second lead and a molding part including the third lead and the fourth lead therein.
    Type: Application
    Filed: June 24, 2011
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung-Min KIM, Seok-Hyun NAM, Ju-Young YOON
  • Power supply, display device, and light source driving apparatus
    Patent number: 8129918
    Abstract: A power supply is provided, which includes a DC-DC converter being supplied with an external DC input voltage and a first switching control signal and outputting a duty sensing signal of which a magnitude is varied in accordance with the first switching control signal, the duty sensing signal being indicative of a duty ratio of the first switching control signal, and the DC-DC converter converting the input voltage into a DC output voltage of a predetermined magnitude based on the first switching control signal; and a feedback controlling unit comparing the duty sensing signal with a first reference signal to adjust the duty ratio of the first switching control signal.
    Type: Grant
    Filed: June 19, 2009
    Date of Patent: March 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sang-Gil Lee, Ju-Young Yoon, Jong-Seo Lee, Gi-Cherl Kim, Sang-Yu Lee
  • Optical lens, optical package having the same, backlight assembly having the same and display device having the same
    Patent number: 8118458
    Abstract: An optical lens refracts and reflects a light to increase a luminance in a top direction of the optical lens and to decrease a luminance in a horizontal direction of the optical lens. The optical lens includes a central portion and a peripheral portion. The central portion has a convex shape. The peripheral portion has a concave shape. The peripheral portion surrounds the central portion. Therefore, power consumption and manufacturing cost are decreased.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: February 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Ki Park, Sang-Yu Lee, Gi-Cherl Kim, Seok-Hyun Nam, Ju-Young Yoon
  • BACKLIGHT UNIT AND LIQUID CRYSTAL DISPLAY MODULE HAVING THE SAME
    Publication number: 20110249217
    Abstract: A backlight unit includes a mold frame, a metal core printed circuit board (“MCPCB”) on which at least one light emitting diode (“LED”) is mounted, a reflector, a light guide plate, and an optical sheet. The mold frame includes an MCPCB fixing portion, the MCPCB is directly and removably disposed on the MCPCB fixing portion, and a lower surface of the MCPCB is exposed to the outside of the mold frame. On the MCPCB, a reflector, a light guide plate, and an optical sheet are placed in the order named. The light guide plate has a light entering surface facing the LED.
    Type: Application
    Filed: April 12, 2011
    Publication date: October 13, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jin-Hee PARK, Tae-Seok JANG, Seok-Won KANG, Yong-Woo LEE, Ju-Young YOON, Jae-Joong KWON, Seung-Hwa HA
  • LIGHT EMITTING DIODE AND LENS FOR THE SAME
    Publication number: 20110242820
    Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens 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 therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always 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.
    Type: Application
    Filed: June 14, 2011
    Publication date: October 6, 2011
    Inventors: Ju-Young Yoon, Gi-Cherl Kim, Jong-Seo Lee, Chun-Ho Song, Se-Ki Park, Sang-Gil Lee, Seock-Hwan Kang
  • Light generating device, backlight assembly having the same, and display apparatus having the backlight assembly
    Patent number: 8002421
    Abstract: A light-generating device includes a driving substrate and a plurality of light source arrays. The driving substrate has a rectangular planar shape. The plurality of light source arrays is formed on the driving substrate. The light source arrays include at least one light emitting diode to generate light in response to power being applied through the substrate, and the light source arrays are spaced apart from each other. Thus, heat generated from the light-generating device is rapidly dissipated from the light-generating device, improving brightness of the light, brightness uniformity of the light and color reproducibility of the light.
    Type: Grant
    Filed: July 15, 2009
    Date of Patent: August 23, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chun-Ho Song, Sang-Yu Lee, Gi-Cherl Kim, Seoek-Hwan Kang, Sang-Gil Lee, Ju-Young Yoon
  • TWO DIMENSIONAL LIGHT SOURCE USING LIGHT EMITTING DIODE AND LIQUID CRYSTAL DISPLAY DEVICE USING THE TWO DIMENSIONAL LIGHT SOURCE
    Publication number: 20110163343
    Abstract: A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to the wires through the holes, a buffer layer covering the LED chip, and an optical layer that is disposed on the buffer layer and has an optical pattern formed at a portion of the optical layer corresponding to the LED chip.
    Type: Application
    Filed: March 21, 2011
    Publication date: July 7, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gi-Cherl KIM, Se-Ki PARK, Ju-Young YOON, Byung-Choon YANG, Seok-Hyun NAM, Sang-Yu LEE
  • Light emitting diode and lens for the same
    Patent number: 7963680
    Abstract: A lens for a light emitting diode is formed with a material having a refractive index of n, and the lens 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 therein. In the lens, a distance from a center of the base to a point of the curved center-edge surface is always 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.
    Type: Grant
    Filed: July 22, 2009
    Date of Patent: June 21, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ju-Young Yoon, Gi-Cherl Kim, Jong-Seo Lee, Chun-Ho Song, Se-Ki Park, Sang-Gil Lee, Seock-Hwan Kang
  • Two dimensional light source using light emitting diode and liquid crystal display device using the two dimensional light source
    Patent number: 7932970
    Abstract: A two-dimensional light source includes a base substrate having holes, wires disposed on a lower surface of the base substrate, a light emitting diode (LED) chip disposed on an upper surface of the base substrate, plugs that connect two electrodes of the LED chip to the wires through the holes, a buffer layer covering the LED chip, and an optical layer that is disposed on the buffer layer and has an optical pattern formed at a portion of the optical layer corresponding to the LED chip.
    Type: Grant
    Filed: September 9, 2008
    Date of Patent: April 26, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Gi-Cherl Kim, Se-Ki Park, Ju-Young Yoon, Byung-Choon Yang, Seok-Hyun Nam, Sang-Yu Lee