Patents by Inventor Young-Kuil Joo

Young-Kuil Joo 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).

  • Reflection type liquid crystal display and a method for fabricating the same
    Patent number: 6522375
    Abstract: Disclosed is a reflection type liquid crystal display and a method for fabricating the same. The reflection type liquid crystal display comprises a reflection electrode of which surface has a plurality of irregular and convex polygons, widths of respective ravines between the convex polygons being constant. Thus, since sizes and heights of the convex polygons are irregular in all directions and flat regions corresponding to the ravines are highly decreased, light reflectivity is enhanced and misalignment of liquid crystal molecules is minimized.
    Type: Grant
    Filed: March 6, 2000
    Date of Patent: February 18, 2003
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Kyu Jang, Young-Kuil Joo, Jih-Oh Kwag, Myeon-Koo Kang, Jong-Eup Shin
  • Method for fabricating a reflection type liquid crystal display
    Patent number: 6469759
    Abstract: A reflection type liquid crystal display device having a reflection electrode with an enhanced reflectivity and a method for fabricating the same includes a dimple on a convex of the reflection electrode. The method for fabricating such a reflection type liquid crystal display uses a photo-sensitive organic insulation film to form bumps for the convex-concave structure, thus increases only the number of times of exposures, thereby simplifying the overall process.
    Type: Grant
    Filed: October 1, 2001
    Date of Patent: October 22, 2002
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yong-Kyu Jang, Young-Kuil Joo, Myeon-Koo Kang
  • Method for fabricating a reflection type liquid crystal display
    Publication number: 20020021390
    Abstract: A reflection type liquid crystal display device having a reflection electrode with an enhanced reflectivity and a method for fabricating the same includes a dimple on a convex of the reflection electrode. The method for fabricating such a reflection type liquid crystal display uses a photo-sensitive organic insulation film to form bumps for the convex-concave structure, thus increases only the number of times of exposures, thereby simplifying the overall process.
    Type: Application
    Filed: October 1, 2001
    Publication date: February 21, 2002
    Inventors: Yong-Kyu Jang, Young-Kuil Joo, Myeon-Koo Kang
  • Reflection type liquid crystal display and a method for fabricating the same
    Patent number: 6342935
    Abstract: A reflection type liquid crystal display device having a reflection electrode with an enhanced reflectivity and a method for fabricating the same includes a dimple on a convex of the reflection electrode. The method for fabricating such a reflection type liquid crystal display uses a photo-sensitive organic insulation film to form bumps for the convex-concave structure, thus increases only the number of times of exposures, thereby simplifying the overall process.
    Type: Grant
    Filed: November 8, 1999
    Date of Patent: January 29, 2002
    Assignee: Samsung Electronics Co. Ltd.
    Inventors: Yong-Kyu Jang, Young-Kuil Joo, Myeon-Koo Kang