Patents by Inventor Da-hye KIM

Da-hye KIM 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: 20170279008
    Abstract: A light emitting diode includes a support substrate; a light emitting structure including a second semiconductor layer, an active layer, and a first semiconductor layer; at least one groove formed on the lower surface of the light emitting structure; a second electrode located on at least the lower surface of the second semiconductor layer, and electrically connected with the second semiconductor layer; an insulating layer partially covering the second electrode and the lower surface of the light emitting structure, and including at least one opening corresponding to the at least one groove; and a first electrode electrically connected to the first semiconductor layer exposed to the at least one groove, and at least partially covering the insulating layer, wherein the second electrode includes a second contact layer including an ohmic contact layer, and the ohmic contact layer is disposed in the shape of a plurality of islands.
    Type: Application
    Filed: August 24, 2015
    Publication date: September 28, 2017
    Applicant: Seoul Viosys Co., Ltd.
    Inventors: Jong Kyun YOU, Da Hye KIM, Chang Ik KIM
  • Publication number: 20170256687
    Abstract: Provided are a light source package and a display device including the light source package. The light source package includes a substrate; a light-emitting device mounted on the substrate; a red phosphor layer formed adjacent to a surface of the light-emitting device; and an encapsulation layer for encapsulating the light-emitting device and the red phosphor layer, wherein a phosphor of the red phosphor layer is a fluoride-based red phosphor or a sulfide-based red phosphor. The light source package and the display device including the light source package display excellent color reproduction, without discoloration due to moisture after a long period of time.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 7, 2017
    Inventors: Chul-hee YOO, Da-hye KIM, Young-sam PARK, Man-ki HONG, Ho-young SONG
  • Patent number: 9666773
    Abstract: Provided are a light source package and a display device including the light source package. The light source package includes a substrate; a light-emitting device mounted on the substrate; a red phosphor layer formed adjacent to a surface of the light-emitting device; and an encapsulation layer for encapsulating the light-emitting device and the red phosphor layer, wherein a phosphor of the red phosphor layer is a fluoride-based red phosphor or a sulfide-based red phosphor. The light source package and the display device including the light source package display excellent color reproduction, without discoloration due to moisture after a long period of time.
    Type: Grant
    Filed: February 11, 2015
    Date of Patent: May 30, 2017
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chul-hee Yoo, Da-hye Kim, Young-sam Park, Man-ki Hong, Ho-young Song
  • Publication number: 20170069799
    Abstract: A light-emitting diode including a support substrate, a semiconductor stack disposed on the support substrate and including a p-type compound semiconductor layer, an active layer, and an n-type compound semiconductor layer, a reflective metal layer disposed between the support substrate and the semiconductor stack, the reflective metal layer being in ohmic contact with the p-type compound semiconductor layer of the semiconductor stack and including a groove exposing a portion of the semiconductor stack, an insulation layer disposed between the support substrate and the semiconductor stack and disposed in the groove, and a first electrode including a first electrode pad and a first electrode extension and contacting the n-type compound semiconductor layer of the semiconductor stack, in which the first electrode extension is connected to the first electrode pad, and the first electrode extension is formed along an outer boundary of the light-emitting diode.
    Type: Application
    Filed: November 18, 2016
    Publication date: March 9, 2017
    Inventors: Tae Hyuk IM, Chang Yeon Kim, Yeo Jin Yoon, Joon Hee Lee, Ki Bum Nam, Da Hye Kim, Chang Ik Im, Young Wug Kim
  • Patent number: 9508909
    Abstract: A light-emitting diode includes a support substrate, a semiconductor stack disposed on the support substrate, the semiconductor stack including a p-type compound semiconductor layer, an active layer and a n-type semiconductor layer, a reflective metal layer disposed between the support substrate and the semiconductor stack, the reflective metal layer being in ohmic contact with the p-type compound semiconductor layer of the semiconductor stack and having a groove exposing a portion of the semiconductor stack, a first electrode pad contacting the n-type compound semiconductor layer of the semiconductor stack, an electrode extension connected to the first electrode pad, the electrode extension disposed directly over the groove along a line perpendicular to the support substrate, an upper insulation layer disposed between the first electrode pad and the semiconductor stack. The electrode extension includes an Ni layer contacting the n-type compound semiconductor layer, and two Au layers disposed on the Ni layer.
    Type: Grant
    Filed: December 28, 2015
    Date of Patent: November 29, 2016
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Tae Hyuk Im, Chang Yeon Kim, Yeo Jin Yoon, Joon Hee Lee, Ki Bum Nam, Da Hye Kim, Chang Ik Im, Young Wug Kim
  • Publication number: 20160111613
    Abstract: A light-emitting diode includes a support substrate, a semiconductor stack disposed on the support substrate, the semiconductor stack including a p-type compound semiconductor layer, an active layer and a n-type semiconductor layer, a reflective metal layer disposed between the support substrate and the semiconductor stack, the reflective metal layer being in ohmic contact with the p-type compound semiconductor layer of the semiconductor stack and having a groove exposing a portion of the semiconductor stack, a first electrode pad contacting the n-type compound semiconductor layer of the semiconductor stack, an electrode extension connected to the first electrode pad, the electrode extension disposed directly over the groove along a line perpendicular to the support substrate, an upper insulation layer disposed between the first electrode pad and the semiconductor stack. The electrode extension includes an Ni layer contacting the n-type compound semiconductor layer, and two Au layers disposed on the Ni layer.
    Type: Application
    Filed: December 28, 2015
    Publication date: April 21, 2016
    Inventors: Tae Hyuk Im, Chang Yeon Kim, Yeo Jin Yoon, Joon Hee Lee, Ki Bum Nam, Da Hye Kim, Chang Ik Im, Young Wug Kim
  • Patent number: 9306120
    Abstract: A method of fabricating method light-emitting diode according to an exemplary embodiment of the present invention includes forming a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer on a first substrate, forming a second substrate on the second conductivity-type semiconductor layer, separating the first substrate from the first conductivity-type semiconductor layer, forming a mask pattern including a plurality of openings on the first conductivity-type semiconductor layer exposed after separating the substrate, etching the first conductivity-type semiconductor layer having the mask pattern disposed thereon to form a plurality of recesses separated from each other, removing the mask pattern, and etching a surface of the first conductivity-type semiconductor layer to form a sub-micro texture.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: April 5, 2016
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Da Hye Kim, Jong Kyun You, Chang Yeon Kim, Tae Hyuk Im
  • Patent number: 9236533
    Abstract: Disclosed are a light-emitting diode and a method for manufacturing the same. A light-emitting diode according to one aspect of the present invention includes: a first conductive clad layer; a light-scattering pattern configured, in the first conductive clad layer, having a refractive index different from that of the first conductive clad layer; an active layer located under the first conductive clad layer; a second conductive clad layer located under the active layer; a first electrode configured to be electrically connected to the first conductive clad layer; and a second electrode configured to be electrically connected to the second conductive clad layer. The light-scattering pattern can improve light extraction efficiency.
    Type: Grant
    Filed: December 21, 2012
    Date of Patent: January 12, 2016
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Tae Hyuk Im, Chang Yeon Kim, Yeo Jin Yoon, Joon Hee Lee, Ki Bum Nam, Da Hye Kim, Chang Ik Im, Young Wug Kim
  • Patent number: 9159870
    Abstract: Exemplary embodiments of the present invention disclose a method of fabricating a gallium nitride (GaN) based semiconductor device. The method includes growing GaN based semiconductor layers on a first surface of a GaN substrate to form a semiconductor stack, and separating at least a first portion of the GaN substrate from the semiconductor stack using a wire cutting technique.
    Type: Grant
    Filed: September 11, 2013
    Date of Patent: October 13, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Kyun You, Chang Yeon Kim, Da Hye Kim, Tae Hyuk Im, Tae Gyun Kim, Young Wug Kim
  • Publication number: 20150243847
    Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).
    Type: Application
    Filed: April 23, 2015
    Publication date: August 27, 2015
    Inventors: Chang Yeon KIM, Da Hye Kim, Hong Chul Lim, Joon Hee Lee, Jong Kyun You
  • Publication number: 20150228869
    Abstract: Provided are a light source package and a display device including the light source package. The light source package includes a substrate; a light-emitting device mounted on the substrate; a red phosphor layer formed adjacent to a surface of the light-emitting device; and an encapsulation layer for encapsulating the light-emitting device and the red phosphor layer, wherein a phosphor of the red phosphor layer is a fluoride-based red phosphor or a sulfide-based red phosphor. The light source package and the display device including the light source package display excellent color reproduction, without discoloration due to moisture after a long period of time.
    Type: Application
    Filed: February 11, 2015
    Publication date: August 13, 2015
    Inventors: Chul-hee YOO, Da-hye KIM, Young-sam PARK, Man-ki HONG, Ho-young SONG
  • Patent number: 9029888
    Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).
    Type: Grant
    Filed: May 17, 2011
    Date of Patent: May 12, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Da Hye Kim, Hong Chul Lim, Joon Hee Lee, Jong Kyun You
  • Publication number: 20140367722
    Abstract: Disclosed are a light-emitting diode and a method for manufacturing the same. A light-emitting diode according to one aspect of the present invention includes: a first conductive clad layer; a light-scattering pattern configured, in the first conductive clad layer, having a refractive index different from that of the first conductive clad layer; an active layer located under the first conductive clad layer; a second conductive clad layer located under the active layer; a first electrode configured to be electrically connected to the first conductive clad layer; and a second electrode configured to be electrically connected to the second conductive clad layer. The light-scattering pattern can improve light extraction efficiency.
    Type: Application
    Filed: December 21, 2012
    Publication date: December 18, 2014
    Inventors: Tae Hyuk Im, Chang Yeon Kim, Yeo Jin Yoon, Joon Hee Lee, Ki Bum Nam, Da Hye Kim, Chang Ik Im, Young Wug Kim
  • Publication number: 20140362603
    Abstract: Disclosed is a light source module capable of realizing a slim structure and providing excellent luminous efficiency. The light source module includes a circuit board, a light emitting diode chip mounted on the circuit board by flip-chip bonding or surface mount technology (SMT), a wavelength conversion layer disposed on the light emitting diode chip, and a reflector covering an upper surface and at least one of side surfaces of the light emitting diode chip.
    Type: Application
    Filed: May 9, 2014
    Publication date: December 11, 2014
    Applicant: Seoul Semiconductor Co., Ltd.
    Inventors: Young Jun SONG, Seoung Ho Jung, Da Hye Kim, Ki Bum Nam, Yu Dae Han, Chung Hoon Lee
  • Publication number: 20140138729
    Abstract: A method of fabricating method light-emitting diode according to an exemplary embodiment of the present invention includes forming a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer on a first substrate, forming a second substrate on the second conductivity-type semiconductor layer, separating the first substrate from the first conductivity-type semiconductor layer, forming a mask pattern including a plurality of openings on the first conductivity-type semiconductor layer exposed after separating the substrate, etching the first conductivity-type semiconductor layer having the mask pattern disposed thereon to form a plurality of recesses separated from each other, removing the mask pattern, and etching a surface of the first conductivity-type semiconductor layer to form a sub-micro texture.
    Type: Application
    Filed: November 20, 2013
    Publication date: May 22, 2014
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Da Hye KIM, Jong Kyun You, Chang Yeon Kim, Tae Hyuk Im
  • Publication number: 20140073120
    Abstract: Exemplary embodiments of the present invention disclose a method of fabricating a gallium nitride (GaN) based semiconductor device. The method includes growing GaN based semiconductor layers on a first surface of a GaN substrate to form a semiconductor stack, and separating at least a first portion of the GaN substrate from the semiconductor stack using a wire cutting technique.
    Type: Application
    Filed: September 11, 2013
    Publication date: March 13, 2014
    Applicant: SEOUL OPTO DEVICE CO., LTD.
    Inventors: Jong Kyun YOU, Chang Yeon Kim, Da Hye Kim, Tae Hyuk Im, Tae Gyun Kim, Young Wug Kim
  • Publication number: 20120119243
    Abstract: Exemplary embodiments of the present invention relate to a high-efficiency light emitting diode (LED).
    Type: Application
    Filed: May 17, 2011
    Publication date: May 17, 2012
    Applicant: SEOUL OPTO DEVICE CO., LTD.
    Inventors: Chang Yeon KIM, Da Hye KIM, Hong Chul LIM, Joon Hee LEE, Jong Kyun YOU
  • Publication number: 20120105746
    Abstract: A 3D display apparatus includes a 3D panel which displays a 3D image, a first circular polarization film which is attached to a front side of the 3D panel and converts the 3D image to a circular polarization component by retarding a phase, and 3D glasses including a second circular polarization film which converts the circular polarization component converted by the first circular polarization film to a linear polarization component by retarding a phase, a liquid crystal unit which allows the linear polarization component to pass or isolates the linear polarization component from passing based on a state of the power, and a linear polarization plate which allows the linear polarization component to pass or isolates the linear polarization component from passing based on a direction of the linear polarization component.
    Type: Application
    Filed: October 24, 2011
    Publication date: May 3, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kwan-sik MIN, Da-hye KIM