Patents by Inventor Sung-Joo Hwang

Sung-Joo Hwang 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: 20120193627
    Abstract: An organic light-emitting display apparatus with improved electric properties comprises: a substrate; an insulation layer which is formed on the substrate, and which includes a penetration hole; a first electrode which is formed on the insulation layer; an intermediate layer which is formed on the first electrode, and which includes an organic light-emitting layer; a second electrode which is formed on the intermediate layer; and a fixing member which is formed in the penetration hole, and which contacts the first electrode.
    Type: Application
    Filed: January 18, 2012
    Publication date: August 2, 2012
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: Jung-I Yun, Sang-Min Hong, Sung-Joo Hwang
  • Publication number: 20120098737
    Abstract: An organic light-emitting diode (OLED) includes a substrate partitioned into a plurality of pixel regions, and a first electrode in each of the pixel regions on the substrate. The first electrode is partitioned into a first emission region and a second emission region. The OLED includes a first intermediate layer in the first emission region of the first electrode, a second intermediate layer in the second emission region of the first electrode, a second electrode interposed between the first electrode and the second intermediate layer, and a third electrode disposed on the first and second intermediate layers. Light generated by the first intermediate layer is transmitted through the first and third electrodes, and light generated by the second intermediate layer is transmitted through the third electrode.
    Type: Application
    Filed: September 22, 2011
    Publication date: April 26, 2012
    Inventors: Tae-Gon Kim, Yun-Sik Ham, Sung-Joo Hwang, Chi-Wook An
  • Publication number: 20110233527
    Abstract: An organic light emitting device is disclosed. In one embodiment, the device includes a plurality of pixels formed on a substrate, wherein each of the pixels includes: a first electrode layer formed on the substrate; an organic emission layer formed on the first electrode layer and a second electrode layer formed on the organic emission layer. Further, at least one of the first electrode layers of the pixels is externally patterned.
    Type: Application
    Filed: July 6, 2010
    Publication date: September 29, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Sang-Min HONG, Hee-Chul Jeon, Sung-Joo Hwang
  • Publication number: 20110227838
    Abstract: A flat panel display integrated with a touch screen panel. The connecting patterns, which connect adjacent first sensing cells and adjacent second sensing cells are formed on the same level of the lower surface of the upper substrate of the flat panel display of the same material as metal patterns formed around the edge of the touch screen panel, and by arranging the connecting patterns not to cross each other. The flat panel display panel can also be integrated with a touch screen having improved visibility by forming the touch screen panel on the upper substrate of the flat panel display such that connecting patterns are formed in the regions between the pixels.
    Type: Application
    Filed: September 15, 2010
    Publication date: September 22, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Hee-Chul JEON, Ji-Eun Kim, Sung-Joo Hwang, Se-Il Cho, Won-Mi Hwang
  • Publication number: 20110221332
    Abstract: An organic light-emitting display apparatus including first and second edge sub-pixel lines disposed at opposing side edges of the apparatus and center sub-pixel lines disposed therebetween, each for emitting a single color of light. An external emission width of the first edge sub-pixel line is less than an external emission width of the center sub-pixel lines that emit the same color. An external emission width of the second edge sub-pixel line is less than the width of the center sub-pixel lines that emit the same color.
    Type: Application
    Filed: February 17, 2011
    Publication date: September 15, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Hee-Chul JEON, Sung-Joo HWANG, Ji-Eun Kim, Sea-Hee LIM, Jang-Kyu YIM, Jeong-Yeol LEE, Sun-Youl LEE, Kwang-Sik LEE, Byung-Uk HAN, Sang-Min HONG, Jung-I YUN
  • Publication number: 20110200678
    Abstract: The present invention relates to a novel technology for forming fine particles with a size of 0.02˜3 microns from a solid that can be dissolved in a liquid solvent and is not decomposed by heat. The particle preparation technology according to the present invention may be applicable to the fields of food, cosmetics, biopolymer, polymer compositions, and pharmaceuticals.
    Type: Application
    Filed: March 3, 2010
    Publication date: August 18, 2011
    Applicant: THE INDUSTRY METHOD AND APPARATUS OF ULTRAFINE PARTICLES HAVING UNIFORM PARTICLE SIZE DISTRIBUTIO
    Inventors: Sung Joo Hwang, Min Soo Kim, Jeong Soo Kim, Kwang Ho Cha, Won Kyung Cho, Jun Sung Park, Suk Jun Seo
  • Publication number: 20110148839
    Abstract: An organic light emitting display apparatus includes a polarizer film arranged on a substrate or an encapsulation substrate that faces an image realized by a display unit, wherein the polarizer film includes a plurality of regions having different light transmittances. By using the polarizer film, a luminance difference due to a voltage drop may be compensated for so that a uniform luminance may be obtained when the image is realized.
    Type: Application
    Filed: April 1, 2010
    Publication date: June 23, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Sung-Joo Hwang, Hee-Chul Jeon, Jung-I Yun, Sae-Hee Lim
  • Publication number: 20100104638
    Abstract: An extended release oral administered dosage form of acetaminophen and tramadol. The dosage form includes a composition of acetaminophen together with a tramadol complex formed with an anionic polymer. The tramadol complex provides sustained release of tramadol for a synchronized (coordinated) release profile of acetaminophen and tramadol.
    Type: Application
    Filed: October 23, 2009
    Publication date: April 29, 2010
    Inventors: WEI-GUO DAI, LIANG-CHANG DONG, TAE-HONG CHOI, SUNG JOO HWANG, JAE HYUN KIM, DONG HO LEE
  • Publication number: 20090124817
    Abstract: The present invention relates to a method of preparing amorphous atorvastatin calcium nanoparticles using a supercritical fluid process. Specifically, the method comprising the steps of: a) dissolving atorvastatin calcium in an organic solvent with/without a hydrophilic additive to prepare a drug solution; b) introducing the drug solution and carbon dioxide into a reactor, which maintains carbon dioxide at supercritical conditions, to produce atorvastatin calcium particles; and c) introducing carbon dioxide into the reactor to wash the particles through removal of the remaining organic solvent. The amorphous atorvastatin calcium prepared according to the method of the present invention has a particle size of nanometer order, large surface area and high solubility shows improved bioavailability, and thus can be formulated as various preparations for oral administration.
    Type: Application
    Filed: November 9, 2007
    Publication date: May 14, 2009
    Applicant: The Industry & Academic Cooperation in Chungnam National University
    Inventors: Sung-Joo Hwang, Min-Soo Kim, Jeong-Soo Kim, Ha-Seung Song
  • Publication number: 20090085647
    Abstract: Provided are a storage apparatus in which a clock can be adapted according to temperature changes and a broadcast receiving apparatus using the same. The storage apparatus adjusts and uses a signal, which is used to read out data from a memory, according to the measured temperature. Accordingly, the storage apparatus can be prevented from erroneously reading data from the memory due to clock errors caused by temperature changes.
    Type: Application
    Filed: March 18, 2008
    Publication date: April 2, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventor: Sung-joo Hwang