Patents by Inventor Hyun-Deok Lee

Hyun-Deok Lee 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: 20100044634
    Abstract: A blue phosphor, a display device including the same, and associated methods, the blue phosphor including BaMgAl10O17:Eu (BAM) phosphor particles having a surface component and an internal component, wherein an aluminum/barium (Al/Ba) molar ratio of the surface component of the phosphor particles is 1.1 to about 1.4 times the Al/Ba molar ratio of the internal component of the phosphor particles, and the Al/Ba molar ratios are continuously variable between the internal component and the surface component.
    Type: Application
    Filed: July 31, 2009
    Publication date: February 25, 2010
    Inventors: Ick-Kyu Choi, Yoon-Chang Kim, Do-Hyung Park, Mi-Ran Song, Hyun-Deok Lee, Ji-Hyun Kim, Yu-Mi Song, Jay-Hyok Song, Young-Hun Lee, Min-Ju Kim, Jin-Hyoung Seo, Young-Ki Kim
  • Publication number: 20090256465
    Abstract: A green phosphor including a first phosphor represented by Formula 1: Ya-x-kCekM?xAlbO3/2(a+b)??(1). In Formula 1, M? includes at least one of Sc, Gd, In, Lu, La, and x, k, a, and b satisfy the relations 0.0?x?5.0, 0.0<k<0.1, 0.5?a?5.0, 0.5?b?7.0, and a-x-k >0.
    Type: Application
    Filed: February 4, 2009
    Publication date: October 15, 2009
    Inventors: Yu-Mi Song, Jay-Hyok Song, Yoon-Chang Kim, Do-Hyung Park, Yong-Chan You, Gyeong-Jae Heo, Ick-Kyu Choi, Mi-Ran Song, Seon-Young Kwon, Hyun-Deok Lee, Ji-Hyun Kim, Jin-Hyoung Seo, Sun-Hwa Kwon, Ji-Hyun Kim, Min-Ju Kim, Young-Hun Lee, Young-Ki Kim
  • Publication number: 20090224651
    Abstract: Phosphor mixtures for phosphor layers of plasma display devices are provided. The phosphor mixture includes a first compound selected from compounds represented by Gd1-yTbyAl3(BO3)4 (0.05?Y?0.8) and compounds represented by YBO3:Tb3+, and a second compound represented by Zn(Ga1-XAlx)2O4:Mn2+ (0.2?X?0.8). The first compound and second compound are mixed in a weight ratio ranging from about 3:7 to about 6:4. The inventive phosphor mixtures exhibit reduced decay times, thereby increasing color reproducibility and improving brightness characteristics.
    Type: Application
    Filed: March 4, 2009
    Publication date: September 10, 2009
    Inventors: Hyun-Deok Lee, Ick-Kyu Choi, Do-Hyung Park, Ji-Hyun Kim, Kyu-Chan Park, Mi-Ran Song, Yu-Mi Song, Min-Ju Kim, Yoon-Chang Kim, Jay-Hyok Song, Young-Hun Lee
  • Publication number: 20090224669
    Abstract: A plasma display panel including phosphor layers having zeta potentials of the same polarity. In one embodiment, the phosphor layers have positive zeta potentials and have a uniform discharge characteristic and a uniform lifetime, and an address discharge of the plasma display panel can be easily caused, and damage on phosphor layers of the plasma display panel due to positive charges during a sustain discharge of the plasma display panel can be reduced.
    Type: Application
    Filed: January 23, 2009
    Publication date: September 10, 2009
    Inventors: Do-Hyung Park, Yoon-Chang Kim, Young-Hun Lee, Ick-Kyu Choi, Mi-Ran Song, Kyu-Chan Park, Hyun-Deok Lee, Ji-Hyun Kim, Yu-Mi Song, Min-Ju Kim, Jay-Hyok Song
  • Publication number: 20090206724
    Abstract: A green phosphor, including a first phosphor represented by Formula 1: (Y3-xCex)aAlbOc??(1), wherein x, a, b, and c satisfy the relations: 0<x?1, 0.5?a?3, 3?b?9, and 2c=9a+3b; and a second phosphor including at least one of: Zn2SiO4:Mn, YBO3:Tb, Y(1-x1)Gdx1Al3(BO3)4:Tb, wherein x1 satisfies the relation 0?x1?1, Li2Zn(Ge,?)zO8:Mn, wherein ? includes Al or Ga, and z satisfies the relation 3?z?4, BaMgAl10O17:Mn, BaMgAl12O19:Mn, and Zn(Ga1-x2Alx2)2O4:Mn, wherein x2 satisfies the relation 0.2?x2?0.8.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 20, 2009
    Inventors: Ji-Hyun Kim, Yoon-Chang Kim, Yong-Chan You, Do-Hyung Park, Ick-Kyu Choi, Min-Ju Kim, Gyeong-Jae Heo, Mi-Ran Song, Hyun-Deok Lee, Jay-Hyok Song, Sun-Hwa Kwon, Yu-Mi Song, Jin-Hyoung Seo, Young-Hun Lee, Ji-Hyun Kim, Young-Ki Kim
  • Publication number: 20090195141
    Abstract: A red phosphor, including a first phosphor represented by Formula 1 (Y1-x1Mx1)2-y1O3:Euy1 ??(1). In Formula 1, M includes at least one of Gd, La, Sc, and Lu, and x1 and y1 satisfy the relations: 0.00?x1?0.8 and 0.025?y1?0.20.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 6, 2009
    Inventors: Jay-Hyok Song, Ji-Hyun Kim, Ji-Hyun Kim, Hyun-Deok Lee, Seon-Young Kwon, Gyeong-Jae Heo, Do-Hyung Park, Yoon-Chang Kim, Yu-Mi Song
  • Publication number: 20090194740
    Abstract: A phosphor composition including a first phosphor represented by Formula 1: Ba1?bMg1?aAl10O17:Mna,Eub ??(1). In Formula 1, a and b satisfy the relations: 0.05?a?0.4, and 0.006?b<0.05.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 6, 2009
    Inventors: Gyeong-Jae Heo, Mi-Ran Song, Young-Hun Lee, Yoon-Chang Kim, Yong-Chan You, Do-Hyung Park, Hyun-Deok Lee, Seon-Young Kwon, Ji-Hyun Kim, Ick-Kyu Choi, Ji-Hyun Kim, Yu-Mi Song, Jay-Hyok Song, Min-Ju Kim, Sun-Hwa Kwon, Young-Ki Kim
  • Publication number: 20090195143
    Abstract: The phosphor composition including a first phosphor represented by Formula 1: Y3?x?kCekM?xAla?yM?yO(1.5a+4.5)??(1). In Formula 1, M? includes at least one of Sc, In, and La, M? includes at least one of Ga, Sc, and In, and x, y, k, and a satisfy the relations: 0.0?x<3.0, 0.0<y?7.0, 0.0<k<0.1, 4.0?a?7.0, a?y?0.0, and x+k?3.0.
    Type: Application
    Filed: February 4, 2009
    Publication date: August 6, 2009
    Inventors: Jay-Hyok Song, Yu-Mi Song, Yoon-Chang Kim, Do-Hyung Park, Yong-Chan You, Gyeong-Jae Heo, Ick-Kyu Choi, Mi-Ran Song, Seon-Young Kwon, Hyun-Deok Lee, Ji-Hyun Kim, Jin-Hyoung Seo, Sun-Hwa Kwon, Ji-Hyun Kim, Min-Ju Kim, Young-Hun Lee, Young-Ki Kim
  • Publication number: 20090195142
    Abstract: A phosphor composition for a display device, including a phosphor represented by Formula 1: Y3-x-k-zCekMzM?xAla-yM?yO(1.5a+4.5) ??(1). In Formula 1, M includes at least one of Tb, Dy, and Eu, M? includes at least one of Sc, Gd, In, and La, M? includes at least one of Ga, Sc, and In, and x, y, z, k, and a represent molar ratios and satisfy the relations: 0.0?x<3.0, 0.0?y?7.0, 0.0<k<0.1, 0.0<z<0.5, 4.0?a?7.0, a-y?0.0, x+k+z?3.0, and 0.01?z/k?20.
    Type: Application
    Filed: January 29, 2009
    Publication date: August 6, 2009
    Inventors: Jay-Hyok Song, Yu-Mi Song, Yoon-Chang Kim, Do-Hyung Park, Yong-Chan You, Gyeong-Jae Heo, Ick-Kyu Choi, Mi-Ran Song, Seon-Young Kwon, Hyun-Deok Lee, Ji-Hyun Kim, Jin-Hyoung Seo, Sun-Hwa Kwon, Ji-Hyun Kim, Min-Ju Kim, Young-Hun Lee, Young-Ki Kim
  • Patent number: 7566667
    Abstract: A semiconductor device is formed by forming a gate region, including a gate oxide layer, and impurity diffusion regions on a semiconductor substrate, forming a barrier metal layer on the gate region and the impurity diffusion regions of the semiconductor substrate, forming a passivation layer at an interface between the semiconductor substrate and the gate oxide layer to remove defects of the gate oxide layer, and then performing a nitridation process to remove impurities from the semiconductor substrate.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: July 28, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eung-Joon Lee, Hyun-Young Kim, In-Sun Park, Hyun-Deok Lee
  • Publication number: 20080199729
    Abstract: Provided are a phosphor used in a PDP, which is a compound represented by Formula 1 below and a PDP including a phosphor layer comprising the phosphor. (Y1-x-yGdxTby)AlrQ3-r(BO3)4 Formula 1 where 0<x?1, 0<y?1, Q is Sc, In, or Ga, and 0?r<3. When the phosphor is used to form a green phosphor layer of a PDP, the luminance saturation problem of a conventional green phosphor can be overcome. In addition, a PDP including a phosphor layer comprising the phosphor has a wider color reproduction range and no reduction in luminance according to the mixing ratio of each phosphor contained in the phosphor compared with a conventional phosphor used in a PDP. Therefore, a PDP including a phosphor layer comprising the phosphor can have far superior image qualities.
    Type: Application
    Filed: February 13, 2008
    Publication date: August 21, 2008
    Inventors: Ji-Hyun Kim, Dong-Sik Zang, Young-Chul You, Ick-Kyu Choi, Mi-Ran Song, Hyun-Deok Lee, Yu-Mi Song
  • Publication number: 20060238102
    Abstract: Provided are a phosphor for a plasma display panel (PDP) including: a zinc silicate-based phosphor represented by the formula of Zn2SiO4:Mn; and a continuous crystalline metal oxide layer composed of yttrium oxide (Y2O3) formed on the zinc silicate-based phosphor, and a PDP having a phosphor layer composed of the phosphor. The phosphor for a PDP has a continuous crystalline layer composed of a positively charged metal oxide such as yttrium oxide, and thus has better surface properties. The metal oxide layer acts as a protecting layer to prevent deterioration of the phosphor due to ion bombardment. When the phosphor is used to manufacture a green phosphor layer for a PDP, a green discharge voltage can be controlled to levels of red and blue colors due to a better surface charge property and a poor specific gradation discharge problem can be resolved.
    Type: Application
    Filed: April 7, 2006
    Publication date: October 26, 2006
    Inventors: Yong-Seon Kim, Mi-Ran Song, Hyun-Deok Lee, Young-Chul You, Seon-Young Kwon, Ick-Kyu Choi, Kyu-Chan Park, Ji-Hyun Kim
  • Publication number: 20060152135
    Abstract: A phosphor for a plasma display panel (PDP) has a decay time of about 1 ms or less when a Xe concentration is about 10 wt % to about 30 wt % based on the total weight of a discharge gas. A phosphor composition includes the same and a PDP includes a phosphor layer comprising the phosphor or the phosphor composition. When the phosphor or the phosphor composition are used, a low gray scale and low discharge problem due to a green phosphor of a PDP may be solved, a permanent afterimage due to a green phosphor is reduced, and a color reproduction range is significantly broadened compared to a conventional green phosphor of a PDP. In addition, the circuit of the PDP is simplified since colors are not individually subjected to gamma correction but are corrected using a single white gamma. Furthermore, the contrast in a light room is also improved due to the use of phosphor powders with color.
    Type: Application
    Filed: January 10, 2006
    Publication date: July 13, 2006
    Inventors: Ick-Kyu Choi, Young-Chui You, Jae-Woo Bae, Seon-Young Kwon, Yong-Seon Kim, Mi-ran Song, Kyu-Chan Park, Hyun-Deok Lee, Ji-Hyun Kim
  • Publication number: 20060113615
    Abstract: A semiconductor device is formed by forming a gate region, including a gate oxide layer, and impurity diffusion regions on a semiconductor substrate, forming a barrier metal layer on the gate region and the impurity diffusion regions of the semiconductor substrate, forming a passivation layer at an interface between the semiconductor substrate and the gate oxide layer to remove defects of the gate oxide layer, and then performing a nitridation process to remove impurities from the semiconductor substrate.
    Type: Application
    Filed: November 22, 2005
    Publication date: June 1, 2006
    Inventors: Eung-Joon Lee, Hyun-Young Kim, In-Sun Park, Hyun-Deok Lee