Patents by Inventor Won-Seok Kang

Won-Seok Kang 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: 20120142245
    Abstract: A transflective type LCD device and a method for manufacturing the same is disclosed, in which an aperture ratio of a reflective part is improved, and manufacturing process is simplified by decreasing the number of masks for forming contact holes. The transflective type LCD device includes a plurality of gate and data lines crossing each other, defining a plurality of pixel regions; a thin film transistor at a crossing point of the gate and data lines; a lower storage electrode formed by one portion of a preceding gate line, and an upper storage electrode above the lower storage electrode having a gate insulating layer in between; a transmitting electrode in contact the upper storage electrode; and a reflective electrode in contact with the transmitting electrode in the reflective part of the pixel region wherein the transmitting electrode is in between the reflective electrode and the substrate.
    Type: Application
    Filed: January 20, 2012
    Publication date: June 7, 2012
    Inventors: Dong Guk KIM, Won Seok Kang, Joo Soo Lim
  • Patent number: 8194218
    Abstract: An In-Plane Switching (IPS) mode LCD device is disclosed, to prevent the distortion of transverse electric field in a method of decreasing a line width of a common electrode overlapped with a pixel electrode, which includes intersecting gate and data lines that define a pixel region; thin film transistors at an intersection point of the gate and data lines; pixel electrodes formed in the pixel region and connected with a thin film transistor; and common electrodes arranged between the pixel electrodes of the pixel region; wherein, the outermost common electrode, formed adjacent to the data line, is partially overlapped with the pixel electrode, and the line width of the predetermined portion of the outermost common electrode overlapped with the pixel electrode is smaller than the remaining portions of the outermost common electrode.
    Type: Grant
    Filed: June 22, 2005
    Date of Patent: June 5, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Won Seok Kang, Won Ho Lee
  • Patent number: 8115894
    Abstract: A transflective type LCD device and a method for manufacturing the same is disclosed, in which an aperture ratio of a reflective part is improved, and manufacturing process is simplified by decreasing the number of masks for forming contact holes. The transflective type LCD device includes a plurality of gate and data lines crossing each other, defining a plurality of pixel regions; a thin film transistor at a crossing point of the gate and data lines; a lower storage electrode formed by one portion of a preceding gate line, and an upper storage electrode above the lower storage electrode having a gate insulating layer in between; a transmitting electrode in contact the upper storage electrode; and a reflective electrode in contact with the transmitting electrode in the reflective part of the pixel region wherein the transmitting electrode is in between the reflective electrode and the substrate.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: February 14, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Guk Kim, Won Seok Kang, Joo Soo Lim
  • Publication number: 20110234191
    Abstract: The present invention relates to a switch control device, a multi-channel converter including the same, and a switch control method thereof. A multi-channel converter includes at least two converters, and each converter includes at least one power switch. The multi-channel converter supplies the sum of the output power of at least two converter to the load. The switch control device generates at least two gate signals switching operation of each of at least one power switch of at least two converters. The switch control device modulates a switching frequency of at least one power switch according to the load, determines the number of phases of the multi-channel converter according to the load, and generates a gate signal for the phase difference corresponding to the number of the determined phases between at least two gate signals to be generated.
    Type: Application
    Filed: March 14, 2011
    Publication date: September 29, 2011
    Inventors: Jae-Eul YEON, Won-Seok KANG
  • Patent number: 7994517
    Abstract: An organic light emitting display device includes a substrate, a thin film transistor having a gate insulating layer and an inter-insulating layer, an organic light emitting diode electrically connected with the thin film transistor, and a photo sensor, wherein the gate insulating layer includes a relief structure positioned above the photo sensor.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: August 9, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sun A Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Patent number: 7872288
    Abstract: An organic light-emitting display device includes a substrate, a first buffer layer and a second buffer layer on the substrate, a thin film transistor on the second buffer layer, an organic light-emitting diode electrically connected with the thin film transistor, and a photo sensor with an intrinsic region on the second buffer layer, wherein the photo sensor is capable of absorbing red light from the organic light-emitting diode and of exhibiting quantum efficiency of from about 50% to about 90%.
    Type: Grant
    Filed: March 8, 2007
    Date of Patent: January 18, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Sun A Yang, Youn Chul Oh, Eun Jung Lee, Won Seok Kang
  • Publication number: 20100307019
    Abstract: The present invention provides a cross-flow type drying apparatus for a pet, that is capable of quickly performing drying by blowing air uniformly on the entire body of a pet and simultaneously facilitating drying by reducing the amount of stress that a pet is subjected to. The cross-flow type drying apparatus includes: a main body case defining an outlet and an inlet and including a heating member installed within; a cross-flow fan installed in a longitudinal direction within the main body case to rotate; and a stand coupled to enable the main body case to pivot to a predetermined angle. This configuration can reduce drying time and easily perform drying the pet, and can lower manufacturing cost to reduce the financial burden placed on a user.
    Type: Application
    Filed: July 28, 2008
    Publication date: December 9, 2010
    Applicant: ETIRA CO., LTD.
    Inventors: Beoung Chel Park, Won Seok Kang
  • Patent number: 7808590
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drain
    Type: Grant
    Filed: November 20, 2008
    Date of Patent: October 5, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
  • Patent number: 7706052
    Abstract: Disclosed in an electrophoretic display device having a charged ink layer. In this disclosed device, the ink layer is disposed on the active region (an image display region) and the peripheral region located around the active region, and an electric field is applied to a portion of the electrophoretic ink film corresponding to the peripheral region. Therefore, the peripheral region does not look stained.
    Type: Grant
    Filed: November 16, 2007
    Date of Patent: April 27, 2010
    Assignee: LG Display Co., Ltd.
    Inventors: Won Seok Kang, Sung Jin Park, Ji Eun Chae
  • Patent number: 7674572
    Abstract: An exposure method for an LCD is provided. In the method, a sub-pixel region of an array substrate is divided into a first exposure region and a second exposure region, and the first exposure region and the second exposure region are sequentially exposed.
    Type: Grant
    Filed: June 29, 2005
    Date of Patent: March 9, 2010
    Assignee: LG. Display Co., Ltd.
    Inventors: Kwang Hoon Shin, Hyun Suk Jin, Ho Jin Ryu, Won Seok Kang, Deuk Su Lee
  • Publication number: 20090262275
    Abstract: Disclosed is a liquid crystal display (LCD) device having a protection member capable of enhancing reliability against an external impact, and an outdoor visibility against an external light. The LCD device comprises: an LC panel for displaying images; a backlight unit disposed below the LC panel, and providing light; a protection member provided on the LC panel, and consisting of a tempered substrate for protecting the LC panel from an external impact, and an anti-reflect layer formed on the tempered substrate and reducing a reflectivity of external light; and an adhesive layer formed of a material having a similar refractivity to the LC panel and the tempered substrate of the protection member, for adhering the protection member onto the LC panel by being interposed therebetween.
    Type: Application
    Filed: November 24, 2008
    Publication date: October 22, 2009
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Won-Seok Kang, Jong-Beom Lee
  • Patent number: 7567329
    Abstract: An array substrate for a liquid crystal display device includes: a substrate; a gate line on the substrate; a data line crossing the gate line to define a pixel region including a transmissive portion and a reflective portion, the data line being divided into first and second branch lines, the first and second branch lines being spaced apart from each other and disposed in the reflective portion of the adjacent pixel regions, respectively; a thin film transistor connected to the gate line and the data line; a reflective electrode corresponding to the reflective portion and covering the first and second branch lines; and a transparent electrode corresponding to the transmissive portion and connected to the reflective electrode.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: July 28, 2009
    Assignee: LG Display Co., Ltd.
    Inventors: Woo-Nam Jeong, Hyun-Suk Jin, Won-Seok Kang
  • Patent number: 7557894
    Abstract: A method of fabricating a reflective liquid crystal display device includes forming a gate line on a substrate having first and second pixel regions, forming a data line crossing the gate line and defining the pixel regions, forming a thin film transistor connected to the gate line and the data line, wherein the thin film transistor comprises a gate electrode, an active layer, and source and drain electrodes, forming first and second reflective electrodes over the thin film transistor, wherein the first and second reflective electrodes are separated from each other by a first gap, the first and second reflective electrodes are located at the first and second pixel regions, respectively, and completely cover the data line at the pixel regions, forming a photo sensitive organic layer on an entire surface of the substrate having the first and second reflective electrodes, and forming a patterned spacer filling the first gap between the first and second reflective electrodes by sequentially exposing and developin
    Type: Grant
    Filed: August 17, 2007
    Date of Patent: July 7, 2009
    Assignee: LG Display Co., Ltd.
    Inventor: Won-Seok Kang
  • Publication number: 20090096969
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drain
    Type: Application
    Filed: November 20, 2008
    Publication date: April 16, 2009
    Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
  • Publication number: 20090066868
    Abstract: A transflective type LCD device and a method for manufacturing the same is disclosed, in which an aperture ratio of a reflective part is improved, and manufacturing process is simplified by decreasing the number of masks for forming contact holes. The transflective type LCD device includes a plurality of gate and data lines crossing each other, defining a plurality of pixel regions; a thin film transistor at a crossing point of the gate and data lines; a lower storage electrode formed by one portion of a preceding gate line, and an upper storage-electrode above the lower storage electrode having a gate insulating layer in between; a transmitting electrode in contact the upper storage electrode; and a reflective electrode in contact with the transmitting electrode in the reflective part of the pixel region wherein the transmitting electrode is in between the reflective electrode and the substrate.
    Type: Application
    Filed: October 20, 2008
    Publication date: March 12, 2009
    Inventors: Dong Guk Kim, Won Seok Kang, Joo Soo Lim
  • Patent number: 7468767
    Abstract: A fabricating method of an array substrate for a transflective liquid crystal display device includes: forming a gate electrode and a gate line on the substrate; depositing a first insulating layer on the gate electrode and the gate line; forming an active layer on the first insulating layer over the gate electrode; forming an ohmic contact layer on the active layer; forming source and drain electrodes on the ohmic contact layer, and a data line connected to the source electrode, the data line defining a pixel region with the gate line; depositing a second insulating layer on the source and drain electrodes, and the data line, the second insulating layer having an inorganic material; forming a reflective plate on the second insulating layer at the pixel region, the reflective plate having a transmissive hole; forming a third insulating layer on the reflective plate; and forming a pixel electrode on the third insulating layer at the pixel region, the pixel electrode being transparent and connected to the drain
    Type: Grant
    Filed: June 27, 2005
    Date of Patent: December 23, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Kyoung-Su Ha, Won-Seok Kang, Joo-Soo Lim, Se-duk Kim
  • Patent number: 7453537
    Abstract: A transflective type LCD device and a method for manufacturing the same is disclosed, in which an aperture ratio of a reflective part is improved, and manufacturing process is simplified by decreasing the number of masks for forming contact holes. The transflective type LCD device includes a plurality of gate and data lines crossing each other, defining a plurality of pixel regions; a thin film transistor at a crossing point of the gate and data lines; a lower storage electrode formed by one portion of a preceding gate line, and an upper storage electrode above the lower storage electrode having a gate insulating layer in between; a transmitting electrode in contact the upper storage electrode; and a reflective electrode in contact with the transmitting electrode in the reflective part of the pixel region wherein the transmitting electrode is in between the reflective electrode and the substrate.
    Type: Grant
    Filed: April 28, 2005
    Date of Patent: November 18, 2008
    Assignee: LG Display Co., Ltd.
    Inventors: Dong Guk Kim, Won Seok Kang, Joo Soo Lim
  • Publication number: 20080239459
    Abstract: Disclosed in an electrophoretic display device having a charged ink layer. In this disclosed device, the ink layer is disposed on the active region (an image display region) and the peripheral region located around the active region, and an electric field is applied to a portion of the electrophoretic ink film corresponding to the peripheral region. Therefore, the peripheral region does not look stained.
    Type: Application
    Filed: November 16, 2007
    Publication date: October 2, 2008
    Applicant: LG.PHILIPS LCD CO., LTD.
    Inventors: Won Seok Kang, Sung Jin Park, Ji Eun Chae
  • Patent number: 7403253
    Abstract: An IPS mode LCD device and its fabrication method are disclosed. The IPS mode LCD device includes: first and second substrates; a plurality of gate lines and data lines disposed horizontally and vertically on the first substrate; a plurality of sub-pixels defined by the gate lines and the data lines; a common line dividing the sub pixels into an upper region, a first region and a lower region, a second region, and defining first to fourth sub-pixels arranged in a 2×2 matrix form; at least one pair of a common electrode and a pixel electrode disposed in each of first to fourth sub-pixels and generating an in-plane electric field; a first storage line connected to the pixel electrode of the first region and disposed on the gate line; a second storage line connected to the pixel electrode of the second region and disposed on the common line; a switching device formed at an intersection of the gate line and the data line; and a liquid crystal layer formed between the first and second substrates.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: July 22, 2008
    Assignee: LG Display Co., Ltd.
    Inventor: Won-Seok Kang
  • Patent number: 7354807
    Abstract: A liquid crystal display panel and a fabricating method thereof for reducing the number of data lines and the capacitance of a parasitic capacitor between pixel electrodes are disclosed. A first switching part has at least two thin film transistors for applying a first pixel signal that is supplied to a first data line to a first pixel electrode under control of the second control line and the gate line. A second switching part has at least two thin film transistors for applying a second pixel signal supplied to the second data line to the second pixel electrode under control of the first control line and the gate line. A turn-on current value of wither of the two thin film transistors, in each of the first and second switching parts, is more than that of the other thin film transistor.
    Type: Grant
    Filed: October 13, 2006
    Date of Patent: April 8, 2008
    Assignee: LG.Philips LCD Co., Ltd
    Inventors: Sang Hee Yu, Won Seok Kang