Patents by Inventor Seoung-Yoon Ryu

Seoung-Yoon Ryu 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: 7268488
    Abstract: A display device, and a mobile display using the same, that may regulate a ratio of luminance in a lower direction to luminance in an upper direction. The display device has a transparent lower electrode formed on an insulation substrate, an organic emitting layer formed on the lower electrode, and an upper electrode formed on the organic emitting layer, where the upper electrode is comprised of a semi-transparent metal layer and a transparent conductive layer. The ratio of the luminance in the lower direction to the luminance in the upper direction is different according to a thickness of the semi-transparent metal layer.
    Type: Grant
    Filed: August 27, 2004
    Date of Patent: September 11, 2007
    Assignee: Samsung SDI Co., Ltd.
    Inventor: Seoung-Yoon Ryu
  • Publication number: 20070001586
    Abstract: An organic electroluminescence device, and a method of manufacturing the same, where the device includes a substrate, a first electrode formed on the substrate, an organic layer formed on the first electrode and including at least an organic light-emitting layer, and a second electrode formed on the organic layer. The second electrode is made of an Mg—Ag layer having a thickness in a range of 170 ? to 200 ?.
    Type: Application
    Filed: February 28, 2006
    Publication date: January 4, 2007
    Inventors: Seoung-Yoon Ryu, Kwan-Hee Lee, Ja-Hyun Im, Jang-Hyuk Kwon
  • Publication number: 20060250074
    Abstract: An organic electroluminescent display comprises: anode electrodes of R, G and B unit pixels formed separate from each other on a substrate; organic thin-film layers of the R, G and B unit pixels formed on the anode electrodes; and a cathode electrode formed over an entire surface of the substrate. The anode electrode of at least one unit pixel, among the R, G and B unit pixels, has a thickness different from anode electrodes of the other unit pixels. The anode electrode of each of the unit pixels comprises a first film having a high reflectivity and a second film for adjusting a work function. The second film of at least one unit pixel, among the unit pixels, has a thickness different from the second films of the other unit pixels. The second film of the R unit pixel is thicker than the second films of the other unit pixels.
    Type: Application
    Filed: July 13, 2006
    Publication date: November 9, 2006
    Inventors: Kwan-Hee Lee, Seoung-Yoon Ryu, Hun-Jung Lee, Sang-Il Park, Jae-Bon Koo
  • Publication number: 20060145103
    Abstract: A vacuum evaporator including a vacuum chamber and a source arranged in the vacuum chamber to supply a deposition material to a substrate on which a layer is formed. A crystal sensor measures a deposition speed of the deposition material. The crystal sensor includes an insert having a hole, and the insert is arranged in front of the crystal sensor.
    Type: Application
    Filed: January 5, 2006
    Publication date: July 6, 2006
    Inventors: Seoung-Yoon Ryu, Kyong-Tae Yu
  • Publication number: 20060113907
    Abstract: An organic light emitting diode (OLED) display and a method for fabricating the same. The OLED display includes: a substrate; a first electrode formed on the substrate and including a reflecting layer; an organic layer formed on the first electrode and including at least an organic emission layer; a second electrode formed on the organic layer; and an organic capping layer formed on the second electrode. The organic capping layer is formed by stacking an organic material having a refractive index of 1.7 or more, thereby providing a high-efficiency and long-life top-emitting OLED display.
    Type: Application
    Filed: November 28, 2005
    Publication date: June 1, 2006
    Inventors: Ja-Hyun Im, Kwan-Hee Lee, Seoung-Yoon Ryu
  • Publication number: 20060102911
    Abstract: An organic light emitting display including a pixel electrode arranged on a substrate, an organic layer arranged on the pixel electrode and including at least a hole injection layer, a hole acceleration layer, a hole transport layer, and an emission layer, and an opposite electrode arranged on the organic layer. The hole acceleration layer is formed of a material having a hole mobility that is higher than that of the hole injection layer.
    Type: Application
    Filed: November 16, 2005
    Publication date: May 18, 2006
    Inventors: Seoung-Yoon Ryu, Ja-Hyun Im, Kwan-Hee Lee
  • Publication number: 20060099820
    Abstract: A deposition method and apparatus provide a uniform deposition rate and good reproducibility in a process used to deposit a material onto a substrate. The deposition method includes preparing a substrate on which a thin film is deposited, preparing a line source that includes a plurality of heating crucibles are disposed in line, and rotating the line source while depositing the deposition material on the substrate.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 11, 2006
    Inventor: Seoung-Yoon Ryu
  • Publication number: 20060097632
    Abstract: An organic light emitting display and a method of fabricating the same are provided. The organic light emitting display includes a pixel electrode, an organic layer including at least an emission layer, and an opposite electrode. An electron injection layer interposed between the emission layer and the opposite layer may be formed of an optimal thickness of NaF layer to reduce the thickness of the electron injection layer.
    Type: Application
    Filed: November 1, 2005
    Publication date: May 11, 2006
    Inventor: Seoung-Yoon Ryu
  • Publication number: 20060096542
    Abstract: A heating crucible and a deposition apparatus are provided that have a uniform deposition rate and good reproducibility. The heating crucible of the deposition apparatus includes a titanium body with an internal cavity to contain a material to be deposited and an opening to emit the material to be deposited, a wire to heat the body, and an insulator to insulate the body from the wire.
    Type: Application
    Filed: November 4, 2005
    Publication date: May 11, 2006
    Inventors: Seoung-Yoon Ryu, Kyong-Tac Yu, Sung-Rag Ma
  • Publication number: 20060017377
    Abstract: The present invention discloses organic electroluminescent display device and a method for fabricating the same, which includes: a first hole transporting layer formed in the first, second, and third pixel regions; a second hole transporting layer formed on a portion of the first hole transporting layer in the second and third pixel regions; a third hole transporting layer formed on a portion of the second hole transporting layer in the third pixel region. Light emitting layers are formed on each of the first, second, and third hole transporting layers. The thickness of the second hole transporting layer is approximately one-third (?) to two-thirds (?) of an optical wavelength difference between the first and second pixel regions, and the thickness of the third hole transporting layer is approximately one-third (?) to two-thirds (?) of an optical wavelength difference between the second and third pixel regions.
    Type: Application
    Filed: July 21, 2005
    Publication date: January 26, 2006
    Inventor: Seoung-Yoon Ryu
  • Publication number: 20050280355
    Abstract: An organic light emitting display device may include: a substrate having first, second and third pixel regions. A first electrode layer may be formed in each of the first, second and third pixel regions on the substrate. A hole injection layer may be formed over an entire surface of the substrate on the first electrode layers. A first hole transport layer may be formed on the first electrode layers in the first, second and third pixel region. A second hole transport layer may be formed on the first hole transport layer in any two adjacent pixel regions among the first, second and third pixel regions. A third hole transport layer may be formed on the second hole transport layer in any one of the two adjacent pixel region. A first, second and third organic emission layers may be formed on the first, second and third hole transport layer. A second electrode layer may be formed on the first, second and third organic emission layers.
    Type: Application
    Filed: June 10, 2005
    Publication date: December 22, 2005
    Inventors: Kwan-Hee Lee, Jang-Hyuk Kwon, Seoung-Yoon Ryu
  • Publication number: 20050230684
    Abstract: An organic light-emitting display device and a method of fabricating the device are disclosed. The organic light-emitting display device includes a thin-film transistor positioned on a substrate that has a semiconductor layer, a gate electrode, and source and drain electrodes. A first electrode is positioned, which is connected to either the source electrode or drain electrode. A reflective layer, which is spaced apart from the source electrode or drain electrode, is positioned below the first electrode. An organic functional layer having at least an emission layer is positioned on the first electrode. A second electrode is positioned on the organic functional layer. The first electrode, the reflective layer, the organic functional layer, and the second electrode constitute an organic light-emitting diode.
    Type: Application
    Filed: March 10, 2005
    Publication date: October 20, 2005
    Inventors: Chang-Su Seo, Moon-Hee Park, Tae-Wook Kang, Seoung-Yoon Ryu, Kwan-Hee Lee
  • Publication number: 20050151468
    Abstract: An organic electroluminescent device, including a substrate, a first electrode layer formed on the substrate, and a second electrode layer formed on the first electrode layer. An organic layer, having a light-emitting layer, is interposed between the first electrode layer and the second electrode layer, and a transparent layer is formed on the second electrode layer. Damage to the organic layer may be prevented while maintaining a transmittance of the second electrode layer.
    Type: Application
    Filed: November 19, 2004
    Publication date: July 14, 2005
    Inventors: Jin-Woo Park, Seoung-Yoon Ryu, Hun Kim, Yasuhiro Chiba
  • Publication number: 20050082967
    Abstract: A display device, and a mobile display using the same, that may regulate a ratio of luminance in a lower direction to luminance in an upper direction. The display device has a transparent lower electrode formed on an insulation substrate, an organic emitting layer formed on the lower electrode, and an upper electrode formed on the organic emitting layer, where the upper electrode is comprised of a semi-transparent metal layer and a transparent conductive layer. The ratio of the luminance in the lower direction to the luminance in the upper direction is different according to a thickness of the semi-transparent metal layer.
    Type: Application
    Filed: August 27, 2004
    Publication date: April 21, 2005
    Inventor: Seoung-Yoon Ryu
  • Publication number: 20050017630
    Abstract: An organic light emitting device is disclosed. In one embodiment, the organic light emitting device includes red (R), green (G) and blue (B) lower electrodes formed on a substrate. R, G, B organic thin film layers are formed on the R, G, B lower electrodes, respectively. Additionally, an upper single or multilayer electrode is formed over the substrate. Portions of the upper electrode that correspond to the R, G, B organic thin film layers, respectively, are formed to each have a different thickness. Various methods for forming the upper electrode using a fine metal mask, a halftone mask, and single and multiple photolithography processes are also disclosed.
    Type: Application
    Filed: July 22, 2004
    Publication date: January 27, 2005
    Inventors: Seoung-Yoon Ryu, Seung-Yong Song
  • Publication number: 20040217697
    Abstract: An organic electroluminescent display comprises: anode electrodes of R, G and B unit pixels formed separate from each other on a substrate; organic thin-film layers of the R, G and B unit pixels formed on the anode electrodes; and a cathode electrode formed over an entire surface of the substrate. The anode electrode of at least one unit pixel, among the R, G and B unit pixels, has a thickness different from anode electrodes of the other unit pixels. The anode electrode of each of the unit pixels comprises a first film having a high reflectivity and a second film for adjusting a work function. The second film of at least one unit pixel, among the unit pixels, has a thickness different from the second films of the other unit pixels. The second film of the R unit pixel is thicker than the second films of the other unit pixels.
    Type: Application
    Filed: February 4, 2004
    Publication date: November 4, 2004
    Inventors: Kwan-Hee Lee, Seoung-Yoon Ryu, Hun-Jung Lee, Sang-Il Park, Jae-Bon Koo