Patents by Inventor Jang-Kun Song

Jang-Kun Song 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: 20130009159
    Abstract: A liquid crystal display with improved viewing angle and uncompromised transmittance is provided, along with a thin film transistor (TFT) array panel usable for such liquid crystal display. The TFT array panel includes a substrate, a plurality of gate lines formed on the substrate, a plurality of data lines formed on the substrate and intersecting the gate lines, and a plurality of thin film transistors. Each of the thin film transistors includes a gate electrode connected to one of the gate lines, a source electrode connected to one of the data lines, and a drain electrode. The TFT array panel also includes a plurality of pixel electrodes, each of the pixel electrodes connected to one of the drain electrodes and having a pair of oblique edges parallel to each other, and covering at least a portion of the drain electrodes.
    Type: Application
    Filed: September 14, 2012
    Publication date: January 10, 2013
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventor: Jang-Kun SONG
  • Publication number: 20120327342
    Abstract: A compensation film for a liquid crystal film includes a first layer including splayed rod-shaped nematic liquid crystal material and a second layer disposed on a surface of the first layer and including at least one of a biaxial layer and an A-plate.
    Type: Application
    Filed: April 16, 2012
    Publication date: December 27, 2012
    Applicants: Sungkyunkwan University Foundation for Corporate Collaboration, SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee Kyung KIM, Jang-Kun SONG
  • Patent number: 8319929
    Abstract: A liquid crystal display with two insulating substrates. A first insulating substrate has crossing signal lines, a pixel electrode, and a drain electrode electrically connected to the pixel electrode through a contact hole. A spacer is formed on the first signal line of the first insulating substrate, and is wider at a first portion close to the first insulating substrate than at a second portion close to the second insulating substrate, and the drain electrode comprises a first portion and a second portion extending in a different direction with respect to the first portion.
    Type: Grant
    Filed: August 2, 2011
    Date of Patent: November 27, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joong-Hyun Mun, Jang-Kun Song, Yong-Woo Choi, Bo-Sung Kim, Kwan-Wook Jung, Jung-Ho Lee, Hyo-Rak Nam
  • Patent number: 8310643
    Abstract: A liquid crystal display (LCD) is provided, which includes: first and second gate lines, a data line intersecting the gate lines, first to fourth drain electrodes located near the intersections between the first and second gate lines and the data line, and a coupling electrode. First to fourth pixel electrodes respectively connected to the first to fourth drain electrodes are also provided, and the first pixel electrode is connected to the coupling electrode while the fourth pixel electrode overlaps the coupling electrode. The LCD further includes a common electrode opposite the pixel electrodes, a liquid crystal layer interposed between the pixel electrodes and the common electrode, and a domain partitioning member formed on at least one of the pixel electrode and the common electrode. Two long edges of the domains are angled with respect to the first and the second gate lines or the data line substantially by about 45°.
    Type: Grant
    Filed: June 22, 2010
    Date of Patent: November 13, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventor: Jang-Kun Song
  • Publication number: 20120281176
    Abstract: A liquid crystal display includes a first insulating substrate. A pixel electrode is formed on a top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode is substantially rectangular in shape with first second long sides, and first and second short sides. The pixel electrode is divided into an upper region defined by the first and second long sides and first short side, and a lower region defined by the first and second long sides and second short side. A common electrode is formed on a bottom surface of a second insulating substrate, and has a second opening pattern at each pixel area. The first and second opening patterns each have a plurality of openings, the openings of the first opening pattern and the second opening pattern being alternately arranged parallel to each other.
    Type: Application
    Filed: May 8, 2012
    Publication date: November 8, 2012
    Inventors: JANG-KUN SONG, Jae-Jin RYU
  • Patent number: 8305532
    Abstract: Saw-shaped protrusions, which are parallel to each other, are formed on the common electrode and the pixel electrode in two substrates. Protrusions in two substrates are arranged alternately and the bent portions of the saw-shaped protrusions are placed on the line transverse passing through the center of a pixel. Branches extend from the convex point of one saw-shaped protrusion toward the apex to the other saw-shaped protrusion, and another branch extend from the point where the protrusion meets the boundary of the pixel electrode toward the point where the boundary of the pixel electrode and the saw-shaped protrusion make an acute angle. A liquid crystal layer between two electrodes are divided to four regions where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes, and then, wide viewing angle is obtained. In most regions, protrusions are formed straight and the protrusions have only obtuse angles at the bent points.
    Type: Grant
    Filed: August 13, 2007
    Date of Patent: November 6, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Kyeong-Hyeon Kim, Kye-Hun Lee, Seung-Beom Park, Jang-Kun Song
  • Patent number: 8300192
    Abstract: A liquid crystal display with improved viewing angle and uncompromised transmittance is provided, along with a thin film transistor (TFT) array panel usable for such liquid crystal display. The TFT array panel includes a substrate, a plurality of gate lines formed on the substrate, a plurality of data lines formed on the substrate and intersecting the gate lines, and a plurality of thin film transistors. Each of the thin film transistors includes a gate electrode connected to one of the gate lines, a source electrode connected to one of the data lines, and a drain electrode. The TFT array panel also includes a plurality of pixel electrodes, each of the pixel electrodes connected to one of the drain electrodes and having a pair of oblique edges parallel to each other, and covering at least a portion of the drain electrodes.
    Type: Grant
    Filed: November 11, 2010
    Date of Patent: October 30, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jang-Kun Song
  • Publication number: 20120236232
    Abstract: A liquid crystal display comprises: first and second panels facing each other; a compensation film and a first polarizer disposed on the first panel, the compensation film having phase retardation characteristics; and a second polarizer having a supporting film disposed on the second panel, the supporting film having phase retardation characteristics. In alternative embodiments, a supporting film is used in place of the compensation film. The supporting film has retardation characteristics.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 20, 2012
    Inventors: KYEONG-HYEON KIM, Jang-Kun Song
  • Patent number: 8253895
    Abstract: A thin film transistor array substrate is provided with a gate line assembly, a data line assembly, and thin film transistors. The data line assembly crosses over the gate line assembly while defining pixel regions. A pixel electrode is formed at each pixel region. A color filter substrate is provided with a black matrix, and color filters of red, green and blue are formed at the black matrix at the pixel regions. An overcoat layer covers the color filters, and a common electrode is formed on the overcoat layer with an opening pattern. The thin film transistor array substrate, and the color filter substrates face each other, and a liquid crystal material is injected between the thin film transistor array substrate, and the color filter substrate. The blue color filter has a thickness smaller than the red color filter or the green color filter such that the liquid crystal cell gap at the blue color filter is larger than the liquid crystal cell gap at the red or green color filter.
    Type: Grant
    Filed: July 31, 2009
    Date of Patent: August 28, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Kun Song, Kyeong-Hyeon Kim, Jae-Jin Lyu, Seung-Hee Lee, Seung-Beom Park, Yong-Woo Choi
  • Patent number: 8248566
    Abstract: A liquid crystal display includes a first insulating substrate, and a second insulating substrate facing the first insulating substrate. Gate lines are formed on the first insulating substrate while extending in a horizontal direction. A gate insulating layer is formed on the gate lines. A semiconductor layer and data lines are formed on the gate insulating layer. The data lines extend in a vertical direction. Source electrodes are formed on the semiconductor layer while being connected to the data lines. Drain electrodes face the source electrodes. A protective layer is formed on the data lines, and pixel electrodes are formed on the protective layer such that the pixel electrodes are connected to the drain electrodes while having a plurality of slits and horizontal opening portions. A common electrode is formed on the second insulating substrate with a plurality of opening portions.
    Type: Grant
    Filed: July 1, 2010
    Date of Patent: August 21, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jang-Kun Song
  • Patent number: 8233125
    Abstract: A liquid crystal display having electrodes on a single substrate. A transparent planar electrode elongated in the transverse direction is formed on the inner surface of a substrate, and an insulating film is deposited thereon. A plurality of linear electrodes, which are elongated in the longitudinal direction and either transparent or opaque, are formed on the insulating film. Potential difference between the planar and the linear electrodes generated by applying voltages to the electrodes yields an electric field. The electric field is symmetrical with respect to the longitudinal central line of the linear electrodes, and has parabolic or semi-elliptical lines of force having a center on a boundary line between the planar and the linear electrodes. The line of force on the planar and the linear electrodes and on the boundary line between the planar and the linear electrodes has the vertical and the horizontal components, and the liquid crystal molecules are re-arranged to have a twist angle and a tilt angle.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: July 31, 2012
    Assignee: Samsung Electronics, Co., Ltd.
    Inventors: Jin-Tae Yuh, Kye-Hun Lee, Byoung-Sun Na, Dong-Gyu Kim, Jong-Woong Chang, Jung-Uk Shim, Jang-Kun Song, Hyun-Sik Lee
  • Patent number: 8184242
    Abstract: A liquid crystal display comprises: first and second panels facing each other; a compensation film and a first polarizer disposed on the first panel, the compensation film having phase retardation characteristics; and a second polarizer having a supporting film disposed on the second panel, the supporting film having phase retardation characteristics. In alternative embodiments, a supporting film is used in place of the compensation film. The supporting film has retardation characteristics.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics Corp., Ltd.
    Inventors: Kyeong-Hyeon Kim, Jang-Kun Song
  • Patent number: 8184080
    Abstract: The present invention relates a liquid crystal display. The liquid crystal display includes a liquid crystal panel assembly including a plurality of pixels arranged in a matrix, a gate driver applying gate signals to the pixels for application of data signals to the pixels, a data driver selecting gray voltages corresponding to gray signals and applying the selected gray voltages to the pixels as the data signals, and a signal controller providing the gray signals and control signals for controlling the gray signals for the gate driver and the data driver. The data signals include normal data signals and a black data signal. The data driver alternately applies the normal data signals and the black data signal to the pixels under control of the signal controller. A scanning direction of the normal data signals is opposite in adjacent frames.
    Type: Grant
    Filed: September 17, 2002
    Date of Patent: May 22, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Kun Song, Chang-Hun Lee, Hak-Sun Chang
  • Patent number: 8174651
    Abstract: A liquid crystal display includes a first insulating substrate with a top surface and a bottom surface. A pixel electrode is formed on the top surface of the first insulating substrate. The pixel electrode has a first opening pattern at each pixel area. The pixel electrode with the first opening pattern is substantially rectangular in shape with a first long side and a second long side, and first short side and a second short side. The pixel electrode is divided into an upper region defined by the first long side and the second long side and the first short side, and a lower region defined by the first long side and the second long side and the second short side. A second insulating substrate with a top surface and a bottom surface is arranged parallel to the first insulating substrate at a predetermined distance from the same such that the bottom surface of the second insulating substrate faces the top surface of the first insulating substrate.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: May 8, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Kun Song, Jae-Jin Ryu
  • Publication number: 20120094413
    Abstract: In an LCD apparatus and a method of manufacturing the same, a first substrate on which a pixel electrode is formed includes a color filter formed at a pixel area thereof. A color filter spacer is formed at a position between the pixel area and an adjacent pixel area while the color filter is formed. A second substrate on which the common electrode is formed includes a light blocking pattern formed at the position between the pixel area and adjacent pixel area so as to block light incident through between the pixel area and adjacent pixel area, and a light visual angle pattern formed at the position corresponding to the pixel area so as to widen a visual angle of light incident into the pixel area. Thus, the LCD apparatus may be manufactured through simplified and reduced processes and improve display quality of an image.
    Type: Application
    Filed: December 22, 2011
    Publication date: April 19, 2012
    Inventor: Jang-Kun SONG
  • Patent number: 8159430
    Abstract: A liquid crystal display are provided, which includes: a liquid crystal panel assembly including a plurality of pixels arranged in a matrix including a plurality of rows and a plurality of columns, a plurality of gate lines, and a plurality of data lines, wherein the number of the data lines is larger than the number of the columns, the data lines are separated from each other in the panel assembly, each pixel is connected to one of the gate lines and adjacent to two of the data lines, and the pixels in each column are alternately connected to the adjacent data lines at least every one row.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: April 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Kun Song, Yun Jang, Eun-Hee Han
  • Publication number: 20120033170
    Abstract: An array substrate includes a lower substrate, a switching element and a pixel electrode. In the lower substrate, unit pixel areas are each divided into a plurality of domains. The switching element is disposed on the lower substrate and transmits a pixel signal. The pixel electrode is disposed on the unit pixel area and is electrically connected to the switching element. The pixel electrode includes a plurality of slit portions disposed thereon. A portion of the slit portions is longitudinally extended in a zigzag shape along different directions in correspondence with the domains.
    Type: Application
    Filed: October 11, 2011
    Publication date: February 9, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Su-Jeong KIM, Jang-Kun SONG, Sung-Hwan HONG, Kee-Bum PARK, Seon-Ah CHO, Hye-Ran YOU, Su-Han WOO, Jae-Jin LYU, Eun CHO
  • Patent number: 8107047
    Abstract: A liquid crystal display (LCD) apparatus includes a first panel, a second panel, and a liquid crystal layer disposed between the first and second panels. The first panel includes a first transparent substrate having a pixel area, a thin film transistor disposed at the pixel area so as to output a pixel voltage, a first color filter disposed at the pixel area, the first color filter having a first edge, a second color filter disposed adjacent to the first color filter and having a second edge, the first edge and the second edge being overlapped to provide an overlapped area between the first color filter and the second color filter, a spacer disposed on the overlapped area between the first color filter and the adjacent second color filter, and a pixel electrode disposed on the first color filter so as to receive the pixel voltage. The spacer has a same material as one of the first color filter and the second color filter.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: January 31, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Jang-Kun Song
  • Publication number: 20120013829
    Abstract: A tetragonal ring shape aperture is formed in the common electrode on one substrate and a cross shape aperture is formed at the position corresponding to the center of the tetragonal ring shape aperture in the pixel electrode on the other substrate. A liquid crystal layer between two electrodes are divided to four domains where the directors of the liquid crystal layer have different angles when a voltage is applied to the electrodes. The directors in adjacent domains make a right angle. The tetragonal ring shape aperture is broken at midpoint of each side of the tetragon, and the width of the aperture decreases as goes from the bent point to the edge. Wide viewing angle is obtained by four domains where the directors of the liquid crystal layer indicate different directions, disclination is removed and luminance increases.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jang-Kun SONG, Kyeong-Hyeon KIM, Kye-Hun LEE, Hea-Ri LEE
  • Patent number: 8098355
    Abstract: A liquid crystal display is provided, which includes: a first substrate; a first signal line formed on the first substrate; a second signal line formed on the first substrate and intersecting the first signal line; a thin film transistor connected to the first and the second signal lines; a pixel electrode connected to the thin film transistor; a second substrate; a common electrode formed on the second substrate; a liquid crystal layer interposed between the first substrate and the second substrate; and a tilt direction determining member formed on one of the first and the second substrates and having a notch that divides the domain determination member into a plurality of portions.
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: January 17, 2012
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jang-Kun Song, Sahng-lk Jun, Jae-Hong Jeon, Jae-Ho Lee, Jeong-Young Lee