Patents by Inventor Hee-Seop Kim

Hee-Seop Kim 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: 7256849
    Abstract: A liquid crystal display is provided, which includes: first and second panels facing each other, interposing a gap therebetween, and first and second field generating electrodes, respectively; a liquid crystal layer filled in the gap and including a plurality of liquid crystal molecules; first and second tilt direction defining members disposed on the first and the second panels, respectively, and giving a first tilt direction to a group of the liquid crystal molecules; and a third tilt direction defining member disposed on one of the first and the second panels and giving a second tilt direction oblique to the first tilt direction to the group of the liquid crystal molecules.
    Type: Grant
    Filed: June 10, 2004
    Date of Patent: August 14, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seop Kim, Doo-Hwan You, Joon-Hak Oh, Jong-Lae Kim, Sung-Kyu Hong, Young-Chol Yang
  • Publication number: 20070182872
    Abstract: Gate lines are formed on an insulating substrate, and data lines crossing the gate lines are formed. The gate lines and the data lines are insulated from each other and intersect each other to define pixel areas. A thin film transistor including three terminals of a gate electrode, a source electrode and a drain electrode is formed in each pixel area. A direction control electrode and a pixel electrode are also formed in each pixel area. The thin film transistor switches the direction control electrode. The pixel electrode is electronically floating and capacitively coupled with the direction control electrode.
    Type: Application
    Filed: April 19, 2007
    Publication date: August 9, 2007
    Inventors: Sung-Kyu HONG, Hee-Seop Kim, Kyoung-Ju Shin
  • Publication number: 20070182904
    Abstract: A liquid crystal display panel having improved optical transmissivity and viewing angle includes a first substrate, a second substrate and a liquid crystal layer. The first substrate includes a first base substrate, a plurality of gate lines and a plurality of data lines, and a pixel electrode. The gate lines and the data lines are disposed on the first base substrate and cross each other. The pixel electrode includes a first pixel electrode part and a second pixel electrode part disposed on the first base substrate and inclined in a different direction from each other with respect to the gate lines. The second substrate includes a second base substrate and a common electrode disposed on the second base substrate and alternately positioned with the pixel electrode.
    Type: Application
    Filed: January 24, 2007
    Publication date: August 9, 2007
    Inventors: Hee-Seop Kim, Jun-Woo Lee, Jiangang Lu, Eun-Hee Han
  • Publication number: 20070171184
    Abstract: A thin film transistor array panel is disclosed. The thin film transistor array panel includes a gate line formed on a substrate, a gate insulating layer formed on the gate line, a semiconductor layer formed on the gate insulating layer, a data line and a drain electrode formed on the semiconductor layer, a passivation layer formed on the data line and the drain electrode and including a contact hole, and a pixel electrode formed on the passivation layer and connected to the drain electrode through the contact hole. The data line intersects the pixel electrode, and the pixel electrode includes an opening corresponding to a portion of the data line. The opening has a horizontal width that is wider or narrower than the horizontal width of the data line. Thereby, parasitic capacitance that occurs between the data line and the pixel electrode is reduced to improve image quality.
    Type: Application
    Filed: January 23, 2007
    Publication date: July 26, 2007
    Inventors: Eun-Hee Han, Hee-Seop Kim, Jun-Young Lee, Jun-Woo Lee, Sung-Wook Kang
  • Publication number: 20070159586
    Abstract: A liquid crystal display includes a first plate including first and second field-generating electrodes disposed in a pixel area of an insulating substrate and electrically separated from each other in a cross-finger structure, and a first alignment film covering the first and second field-generating electrodes and rubbed in a first direction; a second plate formed of an insulating substrate and including a third field-generating electrode, a plurality of field-generating portions and openings, and a second alignment film covering the third field-generating electrode and rubbed in a second direction; and a liquid crystal layer interposed between the first plate and the second plate.
    Type: Application
    Filed: October 4, 2006
    Publication date: July 12, 2007
    Inventors: Hee-seop Kim, JianGang Lu, Eun-hee Han, Chang-hun Lee, Jun-woo Lee
  • Publication number: 20070139356
    Abstract: A display apparatus including a plurality of data lines which transmit a data signal received from a data driving unit, a plurality of first gate lines and a plurality of second gate lines, which cross the data lines and are arranged in such a manner that the first gate lines and the second gate lines alternate with each other, a plurality of pixels which are defined by the data lines, the first gate lines, and the second gate lines, each of the pixels including a first sub-pixel electrode to which a first data voltage is applied by a first switching device connected to one of the first gate lines and a second sub-pixel electrode to which a second data voltage is applied by a second switching device connected to one of the second gate lines, and a gate driving unit which selects a scanning group including two or more first gate lines and two or more second gate lines, applies a gate-on voltage to the first gate lines of the scanning group according to a first predetermined scanning order, and applies the gate
    Type: Application
    Filed: November 2, 2006
    Publication date: June 21, 2007
    Inventors: Jun-woo Lee, Hee-seop Kim, Chang-hun Lee, Eun-hee Han
  • Publication number: 20070134883
    Abstract: A display device which can suppress an afterimage phenomenon from occurring includes a first plate including a pixel electrode which is disposed in a transmitting region and a first impurity adsorption electrode which is disposed in a light-shielding region and is separated from the pixel electrode, a second plate facing the first plate and including a second impurity adsorption electrode which is disposed in the light-shielding region to face the first impurity adsorption electrode, and an intermediate layer interposed between the first plate and the second plate.
    Type: Application
    Filed: December 6, 2006
    Publication date: June 14, 2007
    Inventors: Jun-woo Lee, Hee-seop Kim, Chang-hun Lee, Eun-hee Han
  • Publication number: 20070121027
    Abstract: A liquid crystal display includes a backlight assembly emitting light, a liquid crystal panel, disposed on the backlight assembly, displaying an image using the light emitted from the backlight assembly and having at least one alignment film, optical sheets, interposed between the backlight assembly and the liquid crystal panel, having a surface which has a prismatic pattern, the prismatic pattern including prisms focusing the light emitted from the backlight assembly, wherein a long edge direction of the prismatic pattern is substantially the same as a rubbing direction of the at least one alignment film, and upper and lower housing units receiving the backlight assembly, the optical sheets, and the liquid crystal panel.
    Type: Application
    Filed: August 14, 2006
    Publication date: May 31, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Jun-woo Lee, Hee-seop Kim, Chang-hun Lee, Eun-hee Han
  • Publication number: 20070115234
    Abstract: In a display apparatus, a first display substrate includes a common electrode to which a common voltage is applied. A second display substrate facing the first display substrate includes a first pixel electrode and a second pixel electrode. The first and second pixel electrodes formed in one pixel region are spaced apart from and insulated from each other. A first data voltage having a first polarity with reference to the common voltage is applied to the first pixel electrode, and a second data voltage having a second polarity different from the first polarity with reference to the common voltage is applied to the second pixel electrode. Thus, a fringe field is formed between the first and second display substrates and a lateral field is formed in the second display substrate, thereby improving a transmittance and a response speed of the display apparatus.
    Type: Application
    Filed: October 4, 2006
    Publication date: May 24, 2007
    Inventors: Hee-Seop Kim, Chang-Hun Lee, Jun-Woo Lee, Jian-Gang Lu, Eun-Hee Han
  • Patent number: 7215386
    Abstract: Gate lines are formed on an insulating substrate, and data lines crossing the gate lines are formed. The gate lines and the data lines are insulated from each other and intersect each other to define pixel areas. A thin film transistor including three terminals of a gate electrode, a source electrode and a drain electrode is formed in each pixel area. A direction control electrode and a pixel electrode are also formed in each pixel area. The thin film transistor switches the direction control electrode. The pixel electrode is electronically floating and capacitively coupled with the direction control electrode.
    Type: Grant
    Filed: July 22, 2002
    Date of Patent: May 8, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Kyu Hong, Hee-Seop Kim, Kyoung-Ju Shin
  • Publication number: 20070085799
    Abstract: A liquid crystal display panel includes a pixel having a switching element electrically connected to a gate wiring and a source wiring and a liquid crystal capacitor electrically connected to the switching element. A timing controller receives a mode selecting signal corresponding to an impulsive driving mode, and outputs a first common voltage corresponding to the impulsive driving mode. A common voltage converter converts the first common voltage into a second common voltage of analog type, and outputs the second common voltage to the liquid crystal capacitor. Therefore, in the LCD apparatus operated in an impulsive driving method, a common voltage is selectively applied to the liquid crystal display panel, thus improving a display quality.
    Type: Application
    Filed: October 2, 2006
    Publication date: April 19, 2007
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Sung-Jin HONG, Cheol-Woo PARK, Chang-Hun LEE, Hee-Seop KIM, Jun-Woo LEE
  • Publication number: 20070030431
    Abstract: A liquid crystal display with better visibility and transmittance. The liquid crystal display includes a first plate having a first field-generating electrode, disposed in a pixel area on an insulating substrate, comprising a plurality of sub-electrodes which are separated from each other by a predetermined distance and arranged parallel to each other, and a connecting electrode electrically connecting the sub-electrodes. An alignment film that is rubbed in a first direction covers a first field-generating electrode and an alignment film that is rubbed in a second direction covers a second field-generating electrode to achieve a predetermined orientation of the liquid crystals when no field is applied and more uniform rotation of the liquid crystal molecules when a field is applied.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 8, 2007
    Inventors: Chang-hun Lee, Hee-seop Kim, Jun-woo Lee, JianGang Lu, Eun-hee Han
  • Publication number: 20070030226
    Abstract: The present invention relates to an OCB liquid crystal display, wherein a normal image data voltage and a black gray data voltage are repeatedly applied to a data line and a gate on signal of the gate line is controlled to form a pixel row (normal data pixel row) having the normal image data voltage applied thereto, a pixel row (black data pixel row) having the black gray data voltage applied thereto, and a pixel row (middle pixel row) having both of the normal image data voltage and the black gray data voltage applied thereto, and accordingly flicker is not visible, the OCB liquid crystal is not broken, and the liquid crystal display is improved in luminance.
    Type: Application
    Filed: June 27, 2006
    Publication date: February 8, 2007
    Inventors: Jun-Woo Lee, Chang-Hun Lee, Hee-Seop Kim, Eun-Hee Han
  • Publication number: 20070030227
    Abstract: In a optically compensated bend (OCB) liquid crystal display, an impulsive voltage is applied to a pixel between applications of normal data voltages for displaying an image, and the impulsive voltage and the normal data voltage are controlled to prevent breaking of the bending alignment of the (OCB) liquid crystals. Accordingly, luminance of the liquid crystal display can be improved. When the normal data voltage of 0V is applied, the impulsive voltage at which the bending alignment of OCB liquid crystal is broken is set to the impulsive voltage at (for, corresponding to) the highest gray. There occurs a broken region (0-VB) where the bending alignment of the OCB liquid crystal is broken at a predetermined range that is higher than 0V. A voltage that is higher than the highest voltage (VB) of the broken region is set to a white voltage. Accordingly, luminance of the OCB liquid crystal display can be enhanced.
    Type: Application
    Filed: July 6, 2006
    Publication date: February 8, 2007
    Inventors: Jun-Woo Lee, Chang-Hun Lee, Eun-Hee Han, Hee-Seop Kim, Lujian Gang
  • Publication number: 20070030428
    Abstract: An LCD with better visibility and transmittance is disclosed, the LCD having a first panel including a first field-generating electrode disposed in a pixel area of an insulation substrate, a plurality of sub-electrodes which are separated from each other by a predetermined distance and arranged parallel to each other and a connecting electrode electrically connecting the sub-electrodes, and a first alignment film covering the first field-generating electrode and being rubbed in a first direction; a second panel including a second field-generating electrode disposed on an insulation substrate, a plurality of openings facing the sub-electrodes and having widths greater than the widths of the sub-electrodes, and a second alignment film covering the second field-generating electrode and being rubbed in a second direction; and a liquid crystal layer interposed between the first panel and the second panel.
    Type: Application
    Filed: August 4, 2006
    Publication date: February 8, 2007
    Inventors: JianGang Lu, Hee-seop Kim, Chang-hun Lee, Jun-woo Lee, Eun-hee Han
  • Publication number: 20070018924
    Abstract: An OCB (Optically Compensated Bend) liquid crystal display in which impulse driving is performed such that an impulse data voltage is applied between normal data voltages used for displaying an image. The impulse data voltage is divided into a first impulse data voltage and a second impulse data voltage having a voltage value that will not break a bent alignment of the OCB liquid crystals. Referring to the application of the first impulse data voltage between the normal data voltages as first impulse driving and the application of the second impulse data voltage between the normal data voltages as second impulse driving, the second impulse driving is performed at every two or more of the first impulse drivings, so as to not break the bent alignment of the liquid crystals and to thereby improve luminance of the LCD.
    Type: Application
    Filed: July 18, 2006
    Publication date: January 25, 2007
    Inventors: Eun-Hee Han, Hee-Seop Kim, Jun-Young Lee, Chang-Hun Lee, Jun-Woo Lee, Sung-Wook Kang
  • Publication number: 20070001948
    Abstract: A liquid crystal display according to an embodiment of the present invention provides a OCB liquid crystal display that can stably operate without breaking the bending alignment regardless of applied voltage. The display includes first and second alignment layers that are formed on the first and second substrates, respectively, and that horizontally align the liquid crystal layer. A normal data voltage is determined based on a first gamma curve representing luminance corresponding to external image information and impulsive data voltages are determined based on a second gamma curve representing a luminance that is lower than that of the first gamma curve. The normal data voltage and the impulsive data voltage are applied periodically and alternately.
    Type: Application
    Filed: July 3, 2006
    Publication date: January 4, 2007
    Inventors: Chang-Hun Lee, Hee-Seop Kim, Jun-Woo Lee, Lujian Gang, Eun-Hee Han
  • Publication number: 20060215098
    Abstract: A liquid crystal display is provided. The liquid crystal display includes: a first substrate, a first electric field generating electrode which is located on the first substrate and which has a plurality of cut portions, a direction control electrode located on the first substrate and overlapping at least one of the cut portions, a second substrate facing the first substrate, a second electric field generating electrode located on the second substrate and opposite to the first electric field generating electrode. The liquid crystal display further includes a liquid crystal layer interposed between the first electric field generating electrode and the second electric field generating electrode, and a slope member located on one of the first and second substrate and having a ridge and a slope. The ridge corresponds to the direction control electrode.
    Type: Application
    Filed: March 23, 2006
    Publication date: September 28, 2006
    Inventors: Nak-Cho Choi, Ji-Won Sohn, Chong-Chul Chai, Hee-Seop Kim
  • Publication number: 20060060849
    Abstract: An array substrate includes a gate line, a data line, a switching device, a transmissive electrode, a reflective electrode and a compensating wiring. A pixel region includes first and second regions. The switching device is connected to the gate line and the data line. The transmissive electrode is connected to the switching device. The transmissive electrode is formed in the first region. The reflective electrode is insulated from the transmissive electrode. The reflective electrode is formed in the second region that is adjacent to the first region. The compensating wiring is connected to the switching device. The compensating wiring faces the reflective electrode in the second region with an insulation layer interposed therebetween. Thus, both of a reflectivity of the reflective electrode and a transmissivity of the transmissive electrode are enhanced simultaneously, while the liquid crystal display apparatus maintains a uniform cell gap.
    Type: Application
    Filed: December 17, 2003
    Publication date: March 23, 2006
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Seop Kim, Won-Sang Park, Sang-Il Kim, Dong-Sik Sakong, Young-Chol Yang, Sung-Kyu Hong, Jong-Lae Kim
  • Publication number: 20050151893
    Abstract: Gate lines are formed on an insulating substrate, and data lines crossing the gate lines are formed. The gate lines and the data lines are insulated from each other and intersect each other to define pixel areas. A thin film transistor including three terminals of a gate electrode, a source electrode and a drain electrode is formed in each pixel area. A direction control electrode and a pixel electrode are also formed in each pixel area. The thin film transistor switches the direction control electrode. The pixel electrode is electronically floating and capacitively coupled with the direction control electrode.
    Type: Application
    Filed: July 22, 2002
    Publication date: July 14, 2005
    Inventors: Sung-Kyu Hong, Hee-Seop Kim, Kyoung-Ju Shin