Patents by Inventor Seoung-jae Im

Seoung-jae Im 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: 8264638
    Abstract: Disclosed is a liquid crystal display which includes a first display panel including a plurality of pixel electrodes, a second display panel facing the first display panel, and a liquid crystal layer interposed between the first display panel and the second display panel, and a method of manufacturing the liquid crystal display panel. The second display panel includes a light emitting element displaying a color, an insulating layer disposed on the light emitting element and including a rubbed surface, a polarization layer disposed on the insulating layer and opposite to the light emitting element with respect to the insulating layer, and a common electrode disposed on the polarization layer and facing the pixel electrode.
    Type: Grant
    Filed: June 12, 2009
    Date of Patent: September 11, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-Cheol Jung, Byung-Ki Kim, Seoung-Jae Im
  • Patent number: 8262227
    Abstract: Provided is a laser display device. The laser display device may include at least one light source configured to emit at least one laser beam, at least one scanning unit configured to perform a scanning with the at least one laser beam, and an image forming unit configured to generate excitation light and scattering light by receiving the at least one laser beam from the scanning unit to form an image.
    Type: Grant
    Filed: March 23, 2011
    Date of Patent: September 11, 2012
    Assignee: Samsung LED Co., Ltd.
    Inventors: Joong-kon Son, Seoung-jae Im, Ok-hyun Nam
  • Patent number: 8262934
    Abstract: Disclosed is a silicate phosphor represented by Formula: Lia-xAxSrb-y-z-lByEuzClSic-mDmOd-nEn where A includes at least one ion selected from the group consisting of Na, K, Rb, and Cs. B includes at least one ion selected from the group consisting of Mg, Ca, Ba and Zn. C includes at least one ion selected from the group consisting of Sc, Y, La, Gd, Ce, Pr, Nd, Sm, Tb, Dy, Ho, Er, Tm, Yb, Lu and Bi. D includes at least one ion selected from the group consisting of B, Al, Ga, In and Tl. E includes at least one ion selected from the group consisting of F, Cl, Br, and I. Further disclosed is a white light emitting device including the silicate phosphor.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: September 11, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae-gon Kim, Seoung-jae Im, Shunichi Kubota, Young-sic Kim
  • Patent number: 8242680
    Abstract: A green phosphor, has an orthorhombic structure of a Pnma space group and the Formula 1: (M11-xDx)pM2qOrAs??[Formula 1] wherein M1 is magnesium, calcium, strontium, barium, and any combination thereof, D is at least one of metal selected from the group consisting of europium, manganese, antimony, cerium, praseodymium, neodymium, samarium, terbium, dysprosium, erbium, ytterbium, bismuth, and any combination thereof, M2 is at least one selected from the group consisting of silicon, germanium, aluminum, gallium, and any combination thereof, A is at least one selected from the group consisting of chlorine, fluorine, bromine, iodine, and any combination thereof, and 2.7?p?3.3, 0.7?q?1.3, 3.5?r?4.5, 1.7?s?2.3, and 0<x?0.1. A method of preparing the green phosphor is disclosed, and a white light-emitting device including the green phosphor. The white light-emitting device has good thermal stability.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: August 14, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Tae-gon Kim, Tae-hyung Kim, Seoung-jae Im, Seung-joo Kim
  • Publication number: 20120176026
    Abstract: Provided is an (oxy)nitride phosphor, which is a compound represented by Formula 1 below: {M(1-x)Eux}aSibOcNd ??<Formula 1> wherein, M is an alkaline earth metal; and 0<x<1, 1.8<a<2.2, 4.5<b<5.5, 0?c<8, 0<d?8, and 0<c+d?8. The (oxy)nitride phosphor produces red light suitable for use in UV-LED and blue-LED type white light-emitting devices and achieves good efficiency.
    Type: Application
    Filed: March 21, 2012
    Publication date: July 12, 2012
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Shunichi KUBOTA, Young-sic KIM, Seoung-jae IM, Tae-gon KIM
  • Patent number: 8193696
    Abstract: An oxynitride phosphor including: a compound represented by Formula 1: M1a-xM2x-yCeySib-zAlzOc-xNx,??Formula 1 wherein M1 is at least one element selected from the group consisting of calcium, strontium, barium, magnesium, zinc, and europium, M2 is at least one element selected from the group consisting of scandium, yttrium, lutetium, lanthanum, praseodymium, samarium, gadolinium, terbium, ytterbium, and dysprosium, and a is about 1.7 to about 2.3, b is about 0.7 to about 1.3, c is about 3.5 to about 4.5, x is greater than 0 and less than about 2, y is greater than 0 and less than about 0.5, and z is equal to or greater than 0 and less than about 0.5.
    Type: Grant
    Filed: August 30, 2010
    Date of Patent: June 5, 2012
    Assignees: Samsung Electronics Co., Ltd., Samsung Electro-Mechanics Co., Ltd.
    Inventors: Tae-gon Kim, Tae-hyung Kim, Seoung-jae Im
  • Patent number: 8173091
    Abstract: Disclosed herein is a method for preparing a nanophosphor from a metal hydroxy carbonate and a nanophosphor prepared by the method. The method is capable of mass-production of a uniform particle-size nanophosphor with superior dispersibility and enables reduction in preparation costs. The nanophosphor prepared by the disclosed method exhibits high luminescence efficiency.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: May 8, 2012
    Assignees: Samsung Electronics Co., Ltd., Samsung Corning Precision Glass Co., Ltd.
    Inventors: Young Sic Kim, Seoung Jae Im, Kubota Shunichi, Jae Ho Lee, Tae Gon Kim, Seok Hyun Nam, Dong Chin Lee
  • Patent number: 8163202
    Abstract: Provided is an (oxy)nitride phosphor, which is a compound represented by Formula 1 below: {M(1-x)Eux}aSibOcNd??<Formula 1> wherein, M is an alkaline earth metal; and 0<x<1, 1.8<a<2.2, 4.5<b<5.5, 0?c<8, 0<d?8, and 0<c+d?8. The (oxy)nitride phosphor produces red light suitable for use in UV-LED and blue-LED type white light-emitting devices and achieves good efficiency.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: April 24, 2012
    Assignee: Samsung Electro-Mechanics Co., Ltd.
    Inventors: Shunichi Kubota, Young-sic Kim, Seoung-jae Im, Tae-gon Kim
  • Publication number: 20120077092
    Abstract: An electrolyte membrane for a lithium battery, the electrolyte membrane including: a matrix including a polymerization product of a (meth)acrylate monomer composition; and a porous metal-organic framework dispersed in the matrix, wherein the metal-organic framework includes a crystalline compound including a metal ion or metal ion cluster which is chemically bound to an organic ligand, and a liquid electrolyte including a lithium salt and a nonaqueous organic solvent.
    Type: Application
    Filed: February 22, 2011
    Publication date: March 29, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jeong-hee LEE, Seoung-jae IM, Sang-ho PARK
  • Publication number: 20120068591
    Abstract: A green phosphor, has an orthorhombic structure of a Pnma space group and the Formula 1: (M11-xDx)pM2qOrAs??[Formula 1] wherein M1 is magnesium, calcium, strontium, barium, and any combination thereof, D is at least one of metal selected from the group consisting of europium, manganese, antimony, cerium, praseodymium, neodymium, samarium, terbium, dysprosium, erbium, ytterbium, bismuth, and any combination thereof, M2 is at least one selected from the group consisting of silicon, germanium, aluminum, gallium, and any combination thereof, A is at least one selected from the group consisting of chlorine, fluorine, bromine, iodine, and any combination thereof, and 2.7?p?3.3, 0.7?q?1.3, 3.5?r?4.5, 1.7?s?2.3, and 0<x?0.1. A method of preparing the green phosphor is disclosed, and a white light-emitting device including the green phosphor. The white light-emitting device has good thermal stability.
    Type: Application
    Filed: June 1, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae-gon KIM, Tae-hyung KIM, Seoung-jae IM, Seung-joo KIM
  • Patent number: 8119029
    Abstract: Provided is a phosphate nano phosphor with a mean particle diameter of 100 to 3000 nm. Also provided is a method of preparing a nano phosphor, the method comprising: dissolving two or more species of metal precursor compounds in water, and then adjusting the pH to prepare an aqueous solution of pH 4-10; coprecipitating the aqueous solution by mixing with a phosphate precursor aqueous solution with the pH adjusted to 7-12; and redispersing the particles obtained from the coprecipitation in water or polyol solvent, and then heat treating the particles. The phosphate nano phosphor according to the present invention has superior light emission efficiency compared with conventional nano phosphors.
    Type: Grant
    Filed: October 31, 2008
    Date of Patent: February 21, 2012
    Assignees: Samsung Electro-Mechanics Co., Ltd., Seoul National University Industry Foundation
    Inventors: Tae-gon Kim, Tae-hyung Kim, Shin-hoo Kang, Seoung-jae Im
  • Publication number: 20120008065
    Abstract: A white light emitting diode includes a blue light emitting diode (“LED”) light source, and a light conversion layer which converts incident light from the blue LED light source into white light. The light conversion layer includes a green light emitting semiconductor nanocrystal and a red light emitting semiconductor nanocrystal. The white light emitting diode has a red, green and blue color (“RGB”) color locus which is within a chrominance error range (±4?E*ab) locus from the constant hue locus of each of sRGB color coordinates, or within a chrominance error range (±4?E*ab) locus from the constant hue locus of each of AdobeRGB color coordinates.
    Type: Application
    Filed: July 11, 2011
    Publication date: January 12, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seoung-Jae IM, Seo-Young CHOI, Eun-Joo JANG
  • Patent number: 8043529
    Abstract: Provided are an alkaline earth metal silicate-based phosphor which is a compound represented by Formula 1 below, and a white light-emitting device (LED) including the same: (M11-x-yAxBy)aMgbM2cOdZe??Formula 1 wherein, M1 is one selected from the group consisting of Ba, Ca, and Sr; M2 is at least one selected from Si or Ge; A and B are each independently one selected from the group consisting of Eu, Ce, Mn, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Bi, Sn, and Sb; Z is at least one selected from the group consisting of a monovalent or divalent element, H, and N; and 0<x<1, 0?y?1, 6.3<a<7.7, 0.9<b<1.1, 3.6<c<4.4, 14.4<d<17.6, 14.4<d+e<17.6, and 0?e?0.18. The alkaline earth metal silicate-based phosphor has a broad excitation wavelength range, and thus, both a UV-LED and a blue LED can be used as excitation sources for white LEDs.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: October 25, 2011
    Assignees: Samsung LED Co., Ltd., Samsung Electro-Mechanics Co., Ltd.
    Inventors: Shunichi Kubota, Young-sic Kim, Seoung-jae Im
  • Patent number: 8021575
    Abstract: Disclosed herein are a metal hydroxy carbonate nanoparticle-coated phosphor and a preparation method thereof. The phosphor coated with metal hydroxy carbonate nanoparticles exhibit improved thermal stability and an increased luminance lifespan, when applied to display devices, e.g., PDPs and lamps.
    Type: Grant
    Filed: May 1, 2008
    Date of Patent: September 20, 2011
    Assignees: Samsung Electronics Co., Ltd., Samsung Corning Precision Glass Co. Ltd.
    Inventors: Young Sic Kim, Seoung Jae Im, Kubota Shunichi, Jae Ho Lee, Tae Gon Kim, Seok Hyun Nam, Dong Chin Lee
  • Publication number: 20110170071
    Abstract: Provided is a laser display device. The laser display device may include at least one light source configured to emit at least one laser beam, at least one scanning unit configured to perform a scanning with the at least one laser beam, and an image forming unit configured to generate excitation light and scattering light by receiving the at least one laser beam from the scanning unit to form an image.
    Type: Application
    Filed: March 23, 2011
    Publication date: July 14, 2011
    Inventors: Joong-kon Son, Seoung-jae Im, Ok-hyun Nam
  • Publication number: 20110109221
    Abstract: An oxynitride phosphor including: a compound represented by Formula 1: M1a-xM2x-yCeySib-zAlzOc-xNx,??Formula 1 wherein M1 is at least one element selected from the group consisting of calcium, strontium, barium, magnesium, zinc, and europium, M2 is at least one element selected from the group consisting of scandium, yttrium, lutetium, lanthanum, praseodymium, samarium, gadolinium, terbium, ytterbium, and dysprosium, and a is about 1.7 to about 2.3, b is about 0.7 to about 1.3, c is about 3.5 to about 4.5, x is greater than 0 and less than about 2, y is greater than 0 and less than about 0.5, and z is equal to or greater than 0 and less than about 0.5.
    Type: Application
    Filed: August 30, 2010
    Publication date: May 12, 2011
    Applicants: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventors: Tae-gon KIM, Tae-hyung KIM, Seoung-jae IM
  • Patent number: 7934835
    Abstract: Provided is a laser display device. The laser display device may include at least one light source configured to emit at least one laser beam, at least one scanning unit configured to perform a scanning with the at least one laser beam, and an image forming unit configured to generate excitation light and scattering light by receiving the at least one laser beam from the scanning unit to form an image.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: May 3, 2011
    Assignee: Samsung LED Co., Ltd.
    Inventors: Joong-kon Son, Seoung-jae Im, Ok-hyun Nam
  • Publication number: 20110001154
    Abstract: A method of preparing oxynitride phosphor represented by Formula 1: (M(1-x)Eux)aSibOcNd??Formula 1 wherein M is an alkaline earth metal; and 0<x<1, 1.8<a<2.2, 4.5<b<5.5, 0?c<8, 0<d?8, and 0<c+d?8, the method including: mixing an alkaline earth metal precursor compound, an europium precursor compound, an acid, an Si3N4 powder, and a chelate compound to form a gel-phase product; drying the gel-phase product, sintering the gel-phase product to form a first sintered powder; grinding the first sintered powder; mixing the first sintered powder with about 20 to about 200 parts by weight of carbon, based on 100 parts by weight of the first sintered powder, to obtain a mixture of the first sintered powder and the carbon; and sintering the mixture of the first sintered powder and the carbon to provide the oxynitride phosphor.
    Type: Application
    Filed: June 28, 2010
    Publication date: January 6, 2011
    Applicants: Samsung Electronics Co., Ltd., Samsung Electro-mechanics Co., Ltd.
    Inventors: Tae-gon Kim, Shunichi Kubota, Tae-hyung Kim, Seoung-jae Im
  • Publication number: 20100201909
    Abstract: Disclosed is a liquid crystal display which includes a first display panel including a plurality of pixel electrodes, a second display panel facing the first display panel, and a liquid crystal layer interposed between the first display panel and the second display panel, and a method of manufacturing the liquid crystal display panel. The second display panel includes a light emitting element displaying a color, an insulating layer disposed on the light emitting element and including a rubbed surface, a polarization layer disposed on the insulating layer and opposite to the light emitting element with respect to the insulating layer, and a common electrode disposed on the polarization layer and facing the pixel electrode.
    Type: Application
    Filed: June 12, 2009
    Publication date: August 12, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Won-Cheol JUNG, Byung-Ki KIM, Seoung-Jae IM
  • Patent number: 7746423
    Abstract: A photo-luminescent (PL) liquid crystal display (LCD) including a blue dichroic mirror layer disposed under a light emitting layer is provided. Visible light generated from the light emitting layer is mostly reflected to the front side of the PL LCD, thereby increasing the light utilization efficiency thereof. A blue PL quantum dot layer is formed in blue light regions, thereby improving a narrow viewing angle and an orientation in blue pixels. An ultraviolet (UV) filter blocking UV light in the ambient light is formed to protect the light emitting layer from the excitation caused by external light, thereby preventing degradation of contrast caused by an undesired light emission.
    Type: Grant
    Filed: June 1, 2006
    Date of Patent: June 29, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Seoung-jae Im, Byung-ki Kim, Jae-young Choi