Patents by Inventor Sang Soo Hwang

Sang Soo Hwang 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: 20140240279
    Abstract: Discussed is a display device with integrated touch screen. The display device includes a panel configured to include a plurality of electrodes and a display driver IC that applies a common voltage to the plurality of electrodes, a touch IC configured to generate a touch scan signal, and apply the touch scan signal to the display driver IC, a plurality of first link lines configured to connect the plurality of electrodes to the display driver IC in a first direction, and a plurality of second link lines respectively connected to the plurality of electrodes to extend in a second direction opposite to the first direction to contact a distal end of the panel. The display driver IC applies the common voltage or the touch scan signal to the plurality of electrodes through the plurality of first link lines according to a driving mode of the panel.
    Type: Application
    Filed: December 30, 2013
    Publication date: August 28, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Sang Soo HWANG, Tae Hwan KIM
  • Publication number: 20140210774
    Abstract: Disclosed is a display apparatus which facilitates to improve touch sensitivity by decreasing parasitic capacitance between a common electrode and gate/data lines, and decreasing delay on touch sensing and displaying driving, wherein the display apparatus may include a lower panel including a pixel electrode; an upper panel including the common electrode, wherein the common electrode together with the pixel electrode forms an electric field for displaying an image for a displaying driving mode, and the common electrode senses a capacitance change in accordance with a user's touch for a touch sensing mode; and a liquid crystal layer of VA mode formed between the lower and upper panels, and changed in accordance with the electric field between the pixel and common electrodes.
    Type: Application
    Filed: December 24, 2013
    Publication date: July 31, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Tae Hwan Kim, Yong Chan Park, Sang Soo Hwang, Jin Woo Park
  • Publication number: 20140118277
    Abstract: Disclosed is a display device with integrated touch screen. The display device includes a plurality of receiving electrodes formed in a block type and in parallel with a plurality of data lines, a driving electrode group configured to include a plurality of driving electrodes that are respectively disposed between the plurality of receiving electrodes, a plurality of receiving electrode lines respectively connected to the plurality of receiving electrodes, a plurality of driving electrode lines configured to extend from the respective driving electrodes to the first non-display area, a driving IC configured to apply a common voltage or a driving pulse to the plurality of receiving electrode lines and the plurality of driving electrode lines, and a plurality of driving dummy lines formed at a plurality of pixels, covered by a corresponding driving electrode, in a direction parallel to the plurality of driving electrode lines.
    Type: Application
    Filed: October 23, 2013
    Publication date: May 1, 2014
    Applicant: LG Display Co., Ltd.
    Inventors: Tae Hwan Kim, Yong Chan Park, Sang Soo Hwang
  • Publication number: 20140111446
    Abstract: Disclosed is a display device. The display device includes a panel, a display driver IC, and a touch IC. The panel includes a plurality of driving electrodes and a plurality of sensing electrodes. The display driver IC outputs a common voltage to the driving electrode and the sensing electrode in a display driving interval, outputs a reference voltage to the driving electrode during a touch non-sensing period in a touch driving interval, and outputs a driving pulse to the driving electrode to receive a sensing signal from the sensing electrode during a touch sensing period in the touch driving interval. The touch IC transfers a control signal and a selection signal for selecting the touch sensing period and the touch non-sensing period to the display driver, and senses whether there is a touch with the sensing signal and the reference voltage.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 24, 2014
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Young Joon Lee, Sang Soo Hwang, Sun Yeop Kim, Sung Yub Lee
  • Publication number: 20130335366
    Abstract: A display device with integrated touch screen is provided. The display device may include a panel and a touch IC. The panel may include a plurality of driving electrodes and sensing electrodes. The touch IC may apply a driving pulse to the driving electrodes and receive a plurality of sensing signals from the sensing electrodes to determine whether there is a touch when the panel operates in a touch driving mode, and, when the panel operates in a display driving mode, the touch IC may apply a common voltage to the plurality of driving electrodes and sensing electrodes. The touch IC may include a sensing unit sensing whether there is a touch by use of a touch sensing reference voltage applied to the sensing unit and having the same level as a minimum voltage of the driving pulse.
    Type: Application
    Filed: November 13, 2012
    Publication date: December 19, 2013
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Young Joon Lee, Sang Soo Hwang, Sun Yeop Kim
  • Publication number: 20120056835
    Abstract: A display device having touch sensors and a method of driving the same are disclosed. The display device includes a display panel including a pixel array including pixels and a touch sensor array including touch sensors formed in the pixel array, the pixel array being divided into blocks, a gate driver to sequentially drive a plurality of gate lines in the pixel array in a block unit, a data driver to drive a plurality of data lines in the pixel array when the gate lines are driven, a touch controller to sequentially drive the touch sensor arrays in the block unit, and a timing controller to divide one frame into at least one display mode at which the pixel array is driven and at least one touch sensing mode at which the touch sensor array is driven and to control the gate drive, the data driver and the touch controller so that the display mode and the touch sensing mode alternate.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 8, 2012
    Inventors: Kyo-Hyuck CHOO, Jung-Hoon SEO, Sang-Soo HWANG, Sun-Yeop KIM
  • Publication number: 20110291963
    Abstract: A touch display device includes a display panel, a conductive layer disposed on the display panel, a touch electrode disposed adjacent to the conductive layer and on the display panel, a routing line coupled to the touch electrode, and a polarizer disposed on the touch electrode and the conductive layer, where the conductive layer and the touch electrode are formed of the same material.
    Type: Application
    Filed: December 6, 2010
    Publication date: December 1, 2011
    Inventors: Yoon-Hwan Woo, Min-Ho Na, Sun-Jung Lee, Sang-Soo Hwang
  • Publication number: 20110227858
    Abstract: A touch panel includes a plurality of first electrode patterns being serially connected by a plurality of first connection patterns; a plurality of second electode patterns being serially connected by a plurality of second connection patterns; and a plurality of routing lines; wherein at least two of the plurality of first electrode patterns are connected to at least one of the plurality of routing lines.
    Type: Application
    Filed: May 12, 2010
    Publication date: September 22, 2011
    Inventors: Su-Chang An, Cheol-Se Kim, Sang-Soo Hwang, Gang-Seob Jung
  • Publication number: 20110134055
    Abstract: A touch panel includes a plurality of first sensors disposed on a substrate, the plurality of first sensors including a plurality of first electrodes spaced from one another in a first direction and a first connection pattern to connect two adjacent first electrodes, the plurality of first sensors arranged in a second direction crossing the first direction; a plurality of second sensors disposed on the substrate, the plurality of second sensors including a plurality of second electrodes spaced from one another in the second direction and a second connection pattern composed of a metal to connect two adjacent second electrodes, the plurality of second sensors arranged in the first direction; and at least one metal pattern connected to the first connection pattern, wherein the at least one metal pattern overlaps the first connection pattern.
    Type: Application
    Filed: May 12, 2010
    Publication date: June 9, 2011
    Inventors: Gang-Seob JUNG, Sang-Soo Hwang, Young-Jin Yi, Jung-Hyun Lee
  • Publication number: 20080143667
    Abstract: There is a provided a surface light source device comprising: a light source body having an inner space therein in which a discharge gas is contained; a plurality of electrodes formed on the light source body in such a manner as to electrically divide the inner space into at least three blocks and applying discharge voltages to the blocks; and a driving unit sequentially applying the discharge voltages to the blocks through the electrodes in synchronization with a video signal of an external display device. The light source body may have a plurality of discharge spaces or a single discharge space therein. In accordance with the present invention, the surface light source device sequentially applies the discharge voltages to the blocks, and thereby can reduce an after-image occurring in a liquid crystal display device.
    Type: Application
    Filed: December 10, 2007
    Publication date: June 19, 2008
    Applicant: Samsung Corning Co., Ltd.
    Inventors: Yong Keun Jee, Hun Suk Yoo, Hwan Woong Lee, Sang Soo Hwang