Patents by Inventor Byung-Joo Lee

Byung-Joo 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: 20090153653
    Abstract: An electrically-driven liquid crystal lens wherein electric connection between finely split electrodes and signal lines used to apply signals to the split electrodes can be accomplished using a minimal number of masks and signals can be applied to the finely split electrodes without line resistance, and a stereoscopic display device using the same are disclosed.
    Type: Application
    Filed: October 28, 2008
    Publication date: June 18, 2009
    Inventors: Byung Joo LEE, Hee Jin Im
  • Publication number: 20090147178
    Abstract: A multi-viewing display device includes a display panel for displaying images; a back light for supplying the light to the display panel; and a viewing converting unit having a plurality of parallax barriers for reflecting the light from the back light and non-reflecting the light from the display panel to control the path of the light in accordance with a desired viewing direction. The viewing converting unit may include a substrate; at least one layer of a parallax barrier made of high reflective material to reflect the light on the substrate; and at least one layer of the parallax barrier made of low reflective material to block the light on the first parallax barriers.
    Type: Application
    Filed: December 5, 2008
    Publication date: June 11, 2009
    Inventors: Ji-Young Ahn, Jong-Hoon Woo, Byung-Joo Lee, Young-Bok Lee, Hyung-Ju Park
  • Publication number: 20090009426
    Abstract: A display device includes a display panel including first to fourth pixels in a first direction, wherein each of the first to fourth pixels has a first width in the first direction and a length more than the width and in a second direction; and a backlight unit including first and second line light regions supplying light to the display panel to display three-dimensional images, wherein the first and second line light regions have a slanted angle with respect to the second direction, wherein light from the first line light region comes to right and left eyes of a viewer through the first and second pixels, respectively, and light from the second light region comes to the right and left eyes through the third and fourth pixels, respectively, wherein the display device has K view points.
    Type: Application
    Filed: December 31, 2007
    Publication date: January 8, 2009
    Inventors: Byung-Joo Lee, Hyung-Ki Hong
  • Publication number: 20080278483
    Abstract: A three-dimensional image display capable of reducing a difference between a resolution variation rate in a pixel column direction and a resolution variation rate in a pixel row direction and preventing a color separation phenomenon is disclosed. The three-dimensional image display includes a display panel in which n (n is a natural number) disparity images are displayed and the same disparity images are distributed and displayed in subpixels of the same color, and a lenticular sheet which divides travel paths of the disparity images using a plurality of lenticular lenses which are obliquely arranged in front of the display panel, and the long axes of the lenticular lenses are parallel to an extension line of the subpixels in which the same disparity images are displayed.
    Type: Application
    Filed: May 7, 2008
    Publication date: November 13, 2008
    Inventors: Hyung Ki Hong, Byung Joo Lee, Hee Jin Im
  • Publication number: 20080218433
    Abstract: An optical sheet for three-dimensional images and a three-dimensional image display device using the same, are discussed. According to an embodiment, the three-dimensional image display device includes a display unit to display two-dimensional images using unit pixels each including at least three colors of sub-pixels, and an optical sheet to convert the two-dimensional images into a plurality of different three-dimensional images, and the neighboring three-dimensional images are overlapped with each other by a predetermined range. With the above described configuration, the curved lenses are tilted to provide neighboring viewers with three-dimensional images overlapped with each other by 15% to 60%. As a result, a ratio of the horizontal and vertical display resolutions of the three-dimensional images can be equal to a ratio of the horizontal and vertical display resolutions of the two-dimensional images, and the quality of three-dimensional images can be improved.
    Type: Application
    Filed: December 28, 2007
    Publication date: September 11, 2008
    Inventors: Hyung Ki HONG, Byung Joo Lee
  • Publication number: 20080002112
    Abstract: A liquid crystal display (LCD) comprises: a first substrate and a second substrate; a liquid crystal layer between the first and the second substrates; and a fluorescent color filter responding to light over the first substrate, thereby the fluorescent color filter supplies the light to the liquid crystal layer. A method for fabricating a LCD includes: preparing first and second substrates; depositing fluorescent material over the first substrate to form a color filter, the fluorescent material emitting the visible light in responding to the ULTRAVIOLET rays; and forming a liquid crystal layer between the first and second substrates.
    Type: Application
    Filed: June 29, 2007
    Publication date: January 3, 2008
    Inventors: Byung-Joo Lee, Sung-Min Jung, Ju-Un Park, Hyung-Ki Hong
  • Publication number: 20070296644
    Abstract: A three-dimensional display device includes a plurality of projection portions to project a plurality of images, respectively, a plurality of wedge-shaped light guide plates corresponding to the plurality of projection portions, respectively, to emit the plurality of images, respectively, and a plurality of directional diffuser screen corresponding to the plurality of wedge-shaped light guide plates, respectively, to diffuse or transmit the plurality of images.
    Type: Application
    Filed: December 11, 2006
    Publication date: December 27, 2007
    Inventors: Hyung-Ki Hong, Byung-Joo Lee, Sung-Min Jung, Jun-Un Park
  • Publication number: 20070296896
    Abstract: An image display device includes a display panel, a first substrate over the display panel, a plurality of first electrodes on the first substrate, a plurality of second electrodes alternately arranged with the plurality of first electrodes, a second substrate facing the first substrate, a replica layer on the second substrate and having a concave pattern of half-cylinder shape, the concave pattern facing the second electrode, and a liquid crystal layer in the concave pattern.
    Type: Application
    Filed: December 1, 2006
    Publication date: December 27, 2007
    Inventors: Hyung-Ki Hong, Byung-Joo Lee, Sung-Min Jung, Ju-Un Park, Hyun-Ho Shin
  • Publication number: 20070133590
    Abstract: Provided is a channel resource assignment method for fair channel resource reservation in a mesh WPAN, in which the amount of channel resources is fairly reserved when devices share the channel resources. The channel resource assignment method in a mesh Wireless Personal Area Network (WPAN) includes the steps of: (a) transmitting beacons of all devices and adding an amount of channel resource to be reserved to the beacons so as to assign the channel resource for fair channel resource reservation between corresponding devices and adjacent devices when a mesh network is configured; (b) accumulating the amount of the channel resources reserved by all the adjacent devices except the corresponding device; and (c) determining the amount of the channel resources to be reserved.
    Type: Application
    Filed: August 28, 2006
    Publication date: June 14, 2007
    Inventors: Young-Ae Chun, Ji-Eun Kim, Sang-Jae Lee, Sang-Sung Choi, Kwang-Roh Park, Byung-Joo Lee, Seung-Hyong Rhee