Patents by Inventor Dae-Hwan JANG

Dae-Hwan JANG 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: 20140293187
    Abstract: A liquid crystal display device includes a liquid crystal display panel and a backlight unit providing light to the liquid crystal display panel. The liquid crystal display panel includes a first substrate on which a thin film transistor is disposed, a second substrate facing the first substrate, a liquid crystal layer disposed between the first substrate and the second substrate, and a first polarizer disposed on the second substrate having a plurality of metal patterns spaced apart from each other by an interval. The backlight unit faces the second substrate.
    Type: Application
    Filed: August 2, 2013
    Publication date: October 2, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Jung-Gun NAM, Kyoung-Tai Han, Dae-Young Lee, Dae-Hwan Jang, Gug-Rae Jo, Atsushi Takakuwa
  • Publication number: 20140210050
    Abstract: Provided is a method of manufacturing a capacitor of a display apparatus, the display apparatus being formed on a substrate and including a thin film transistor, which includes an active layer, a gate electrode, and source and drain electrodes, a display device connected to the thin film transistor, and the capacitor, the method including: forming an electrode layer on the substrate; forming a passivation layer on the electrode layer; patterning the passivation layer to form a first pattern including first branch patterns parallel to each other, and a second pattern including second branch patterns parallel to each other and interposed between the first branch patterns; and forming first and second electrodes by etching the electrode layer using the first and second patterns as masks.
    Type: Application
    Filed: August 21, 2013
    Publication date: July 31, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Seong-Min Wang, Mu-Gyeom Kim, Tae-An Seo, Gug-Rae Jo, Dae-Young Lee, Jung-Gun Nam, Dae-Hwan Jang
  • Publication number: 20140146391
    Abstract: A polarizer includes a substrate having a first refractive index, a metal pattern disposed on the substrate, and a passivation layer disposed on the metal pattern. The metal pattern includes a plurality of protrusions having widths. The passivation layer has a second refractive index and covers at least one surface of the protrusions.
    Type: Application
    Filed: April 5, 2013
    Publication date: May 29, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dae-Hwan JANG, Jung-Gum Nam, Dae-Young Lee, Gug-Rae Jo, Hyung-Bin Cho, Atsushi Takakuwa
  • Publication number: 20140133027
    Abstract: A reflective polarizing plate is monolithically integrated on a surface of a base layer of a display device. The polarizing plate comprises a polarizing area portion and a reflective/blocking area portion, both having a multi-layered structure. The polarizing area portion is patterned to have a plurality of spaced apart reflective wire grid strips. The reflective/blocking area portion is configured to reflect all light incident thereon from a predetermined direction (where that light would not otherwise be used) and to direct the reflected light back to a light providing source where the light can be recycled for other use. Therefore, a brightness and efficiency of the display device is improved.
    Type: Application
    Filed: February 8, 2013
    Publication date: May 15, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Hwan JANG, Gug-Rae JO, Jung-Gun NAM, Dae-Young LEE
  • Publication number: 20140118656
    Abstract: A liquid crystal display includes a transparent insulation substrate, a first polarizer, and a semiconductor layer, a thin film transistor, and a backlight unit. The first polarizer is disposed on the transparent insulation substrate. The first polarizer includes a light blocking film and metal wires. The semiconductor layer, disposed on the light blocking film, has a perimeter aligned with a perimeter of the light blocking film. The thin film transistor, disposed on the semiconductor layer, includes a source region and a drain region disposed in the semiconductor layer. The backlight unit, disposed under the transparent insulation substrate, provides light to the transparent insulation substrate. The blocking film reflects substantially all of the light. Gaps are disposed between the metal wires.
    Type: Application
    Filed: March 15, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Display Co., Ltd.
    Inventors: Dae Hwan Jang, Sang Ho Park, Dong Jo Kim, Jung Gun Nam, Dae-Young Lee, Gug Rae Jo
  • Publication number: 20140098330
    Abstract: A polarizer includes an opening defined in the polarizer and through which light transmits; a non-opening which is adjacent to the opening and blocks the light; a plurality of metal lines elongated in a first direction, and separated from each other in a second direction different than the first direction, in the opening; and a plate-type pattern in the non-opening. A height of the metal lines is smaller than a height of the plate-type pattern, from a same reference; and an interval in the second direction and between adjacent metal lines is smaller than a wavelength of visible light rays.
    Type: Application
    Filed: May 17, 2013
    Publication date: April 10, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Gun NAM, Dae-Young LEE, Dae Hwan JANG, Gug Rae JO, Atsushi TAKAKUWA
  • Publication number: 20140016059
    Abstract: A polarizer includes a substrate, and a first metal layer and a second metal layer disposed on the substrate. The first metal layer includes a plurality of protrusions of a wire grid pattern. Each protrusion has a first width and adjacent protrusions are spaced apart by a second width. The second metal layer is disposed on each of the protrusions of the first metal layer, and includes molybdenum (Mo) and/or titanium (Ti).
    Type: Application
    Filed: November 19, 2012
    Publication date: January 16, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae-Young LEE, Moon-Jung AN, Su-Mi LEE, Gug-Rae JO, Eun-Jung KIM, Jung-Gun NAM, Dae-Hwan JANG, Hyung-Bin CHO, Atsushi TAKAKUWA
  • Publication number: 20130270223
    Abstract: A photoresist composition includes about 65% by weight to about 80% by weight of a mono-functional monomer, about 5% by weight to about 20% by weight of a di-functional monomer, about 1% by weight to about 10% by weight of a multi-functional monomer including three or more functional groups, about 1% by weight to about 5% by weight of a photoinitiator, and less than about 1% by weight of a surfactant, each based on a total weight of the photoresist composition.
    Type: Application
    Filed: December 11, 2012
    Publication date: October 17, 2013
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ki-Beom LEE, Dae-Hwan JANG, Atsushi TAKAKUWA
  • Publication number: 20130120698
    Abstract: A liquid crystal display includes a first substrate. A plurality of fine metal lines is disposed on the first substrate. The plurality of fine metal lines including a plurality of small regions. A second substrate is aligned with the first substrate. A light blocking portion is disposed on the second substrate. The light blocking portion is disposed in a region between the small regions of the plurality of small regions of the plurality of fine metal lines.
    Type: Application
    Filed: May 14, 2012
    Publication date: May 16, 2013
    Inventors: Atsushi Takakuwa, Dae Hwan Jang, Hyang-Shik Kong, Gug Rae Jo, Kyu Young Kim
  • Publication number: 20130088663
    Abstract: A method of manufacturing a polarizing plate includes disposing a non-conductive material on a base substrate, pressing the non-conductive material using a mold and forming a resist pattern, the resist pattern including a plurality of protruding portions, and forming a metal layer on the protruding portions of the resist pattern. Accordingly, a luminance of a display apparatus can be improved and a manufacturing process can be simplified.
    Type: Application
    Filed: July 19, 2012
    Publication date: April 11, 2013
    Inventors: Dae-Hwan Jang, Atsushi Takakuwa
  • Publication number: 20120133880
    Abstract: A printing apparatus for manufacturing a spacer includes a printing plate and a printing roller. The printing plate has a plurality of receiving recesses formed thereon. The receiving recess has a generally elliptical shape. The receiving recesses are infiltrated with a plurality of beads. The printing roller transfers the beads onto its outer surface by rolling over the receiving recesses, and transfers the beads from its outer surface onto an external substrate. Thus, the spacers may maintain a distance between the first and second substrates stably, so that press characteristics may be enhanced and smear defects occurring when the display panel is pressed may be prevented.
    Type: Application
    Filed: June 3, 2011
    Publication date: May 31, 2012
    Inventors: Dae-Hwan JANG, Min-Uk KIM, Moon-Jung AN, Gug-Rae JO, Kyu-Young KIM
  • Publication number: 20110100546
    Abstract: A liquid crystal layer is formed by coating a liquid crystal material having a reciprocal (Z?1) of an Ohnesorge number in a range of 4?Z?1?14 by an ink-jet printing method. The reciprocal (Z?1) of the Ohnesorge number is a dimensionless number defined as Z?1=([??L]1/2)/?.
    Type: Application
    Filed: May 4, 2010
    Publication date: May 5, 2011
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Dae-Hwan JANG, Gug-Rae JO, Hong-Suk YOO, Chang-Hoon KIM, Min-Uk KIM, Joo-Han BAE, Bo-Kyoung AHN