Patents by Inventor Chang-Hun Lee

Chang-Hun Lee 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: 7697096
    Abstract: A liquid crystal display is provided, which includes: a substrate; a field-generating electrode formed on the substrate; and a slope member formed on the substrate and having an inclination angle smaller than about 45 degrees.
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: April 13, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nak-Cho Choi, Jae-Jin Lyu, Chang-Hun Lee, Dong-Ki Lee, Hak-Sun Chang, Soo-Jin Kim, Hee-Wook Do, Jiangang Lu, Ji-Won Sohn, Mee-Hye Jung, Il-Kook Huh
  • Publication number: 20100039576
    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: October 21, 2009
    Publication date: February 18, 2010
    Inventors: Chang-hun LEE, Hee-seop Kim, Jun-woo Lee, JianGang Lu, Eun-hee Han
  • Publication number: 20100039599
    Abstract: Disclosed is a liquid crystal display capable of high quality image and bright display. Gate signal lines are curved at near switching elements of the liquid crystal display. A pixel area is defined by the gate signal lines and their intersecting data signal lines. Pixel electrodes and common electrodes are disposed along a longitudinal direction of a pixel. A pixel signal and a common signal line is connected to the pixel electrode and the common electrode respectively. A storage capacitor may be formed in the middle of a longitudinal direction of the pixel, or where generally a texture may arise during display. One half of the pixel may be symmetrical with the other half with respect to the storage capacitor. A common signal line may be parallel with the data signal line and be disposed nearer to the data signal line than a pixel signal line. The pixel may be disposed symmetrically with respect to the data signal line therebetween.
    Type: Application
    Filed: September 25, 2009
    Publication date: February 18, 2010
    Inventors: Chang-Hun LEE, Eun-Hee HAN, Hak-Sun CHANG
  • Publication number: 20100025689
    Abstract: A thin film transistor array panel according to an embodiment includes: a substrate; a plurality of gate line formed on the substrate; a plurality of first capacitor electrodes formed on the substrate and separated from the gate lines; a plurality of data line intersecting the gate lines; a plurality of thin film transistor connected to the gate lines and the data lines; a plurality of second capacitor electrodes disposed on the first electrode; a plurality of interconnections connected to the second capacitor electrodes and the thin film transistor and disposed symmetrical to the data lines; and a plurality of pixel electrode, each pixel electrode including a first subpixel electrode connected to one of the thin film transistors and a second subpixel electrode connected to one of the first capacitor electrodes.
    Type: Application
    Filed: October 1, 2009
    Publication date: February 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Chang-Hun LEE, Hyun-Wuk KIM, Mee-Hye JUNG, Kyoung-Ju SHIN, Hak-Sun CHANG, Yoon-Sung UM
  • Patent number: 7656466
    Abstract: A substrate for an LCD panel includes an insulation substrate, a light-blocking layer, a color filter layer, a common electrode layer and a static electricity discharging layer. The light-blocking layer is formed on the insulation substrate to define a pixel region. The color filter layer is formed in the pixel region. The common electrode layer is formed on the color filter layer to provide the liquid crystal layer with a common voltage. The static electricity discharging layer discharges static electricity that is induced by an external stimulus to be captured within the substrate. Thus, when the static electricity induced by the external stimulus flows into the LCD panel, the static electricity may be discharged through the static electricity discharging layer, thereby preventing a spot due to the static electricity.
    Type: Grant
    Filed: December 14, 2005
    Date of Patent: February 2, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Wook Do, Chang-Hun Lee, Hak-Sun Chang, Jae-Jin Lyu, Hyun-Wuk Kim
  • Patent number: 7639333
    Abstract: A display panel is provided. The display panel includes a substrate and a pixel electrode disposed on the substrate and having a pair of first primary edges facing each other and a pair of second primary edges connected to the first primary edges and facing each other, wherein the second primary edges include a plurality of protrusions of the pixel electrode having the shape of sawteeth.
    Type: Grant
    Filed: April 5, 2006
    Date of Patent: December 29, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Wook Do, Yeon-Ju Kim, Yoon-Sung Um, Hak-Sun Chang, Seung-Hoo Yoo, Hyun-Wuk Kim, Jae-Jin Lyu, Chang-Hun Lee
  • Patent number: 7639313
    Abstract: An array substrate includes a switching device, a pixel electrode, an alignment layer and a storage electrode part. The switching device is formed in a pixel area defined by gate lines and data lines. The pixel electrode is formed in the pixel area and electrically connected to the switching device. The alignment layer is formed on the pixel electrode and rubbed in a predetermined alignment direction. The storage electrode part is formed in an area adjacent to the switching device. The storage electrode part includes at least one side having an angle of about forty degrees to about fifty degrees with respect to the alignment direction. The array substrate improves display quality of the liquid crystal display panel.
    Type: Grant
    Filed: October 18, 2005
    Date of Patent: December 29, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Hak-Sun Chang, So-Youn Park
  • Publication number: 20090310074
    Abstract: A thin film transistor array panel according to one embodiment of the invention comprises: first, second, and third pixel electrodes arranged sequentially, the second pixel electrode including first and second sub-pixel electrodes, the second pixel electrode occupying an area comprising a first area and a second area that is disposed closer to the third pixel electrode than the first area; first, second, and third thin film transistors connected to the first, the second, and the third pixel electrodes, respectively; first, second, and third gate lines connected to the first, the second, and the third thin film transistors, respectively; and a data line connected to the first, the second, and the third thin film transistors, wherein the second sub-pixel electrode is capacitively coupled to the third pixel electrode, and the second sub-pixel electrode is present in both the first and the second areas.
    Type: Application
    Filed: August 20, 2009
    Publication date: December 17, 2009
    Inventors: Hyun-Wuk Kim, Jae-Jin Lyu, Yoon-Sung Um, Chang-Hun Lee
  • Patent number: 7626667
    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: Grant
    Filed: August 4, 2006
    Date of Patent: December 1, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-hun Lee, Hee-seop Kim, Jun-woo Lee, JianGang Lu, Eun-hee Han
  • Patent number: 7619694
    Abstract: A thin film transistor array panel according to an embodiment includes: a substrate; a plurality of gate line formed on the substrate; a plurality of first capacitor electrodes formed on the substrate and separated from the gate lines; a plurality of data line intersecting the gate lines; a plurality of thin film transistor connected to the gate lines and the data lines; a plurality of second capacitor electrodes disposed on the first electrode; a plurality of interconnections connected to the second capacitor electrodes and the thin film transistor and disposed symmetrical to the data lines; and a plurality of pixel electrode, each pixel electrode including a first subpixel electrode connected to one of the thin film transistors and a second subpixel electrode connected to one of the first capacitor electrodes.
    Type: Grant
    Filed: October 6, 2005
    Date of Patent: November 17, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Hyun-Wuk Kim, Mee-Hye Jung, Kyoung-Ju Shin, Hak-Sun Chang, Yoon-Sung Um
  • Patent number: 7609351
    Abstract: Disclosed is a liquid crystal display capable of high quality image and bright display. Gate signal lines are curved at near switching elements of the liquid crystal display. A pixel area is defined by the gate signal lines and their intersecting data signal lines. Pixel electrodes and common electrodes are disposed along a longitudinal direction of a pixel. A pixel signal and a common signal line is connected to the pixel electrode and the common electrode respectively. A storage capacitor may be formed in the middle of a longitudinal direction of the pixel, or where generally a texture may arise during display. One half of the pixel may be symmetrical with the other half with respect to the storage capacitor. A common signal line may be parallel with the data signal line and be disposed nearer to the data signal line than a pixel signal line. The pixel may be disposed symmetrically with respect to the data signal line therebetween.
    Type: Grant
    Filed: December 11, 2007
    Date of Patent: October 27, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Eun-Hee Han, Hak-Sun Chang
  • Patent number: 7605884
    Abstract: A TFT array panel on which both pixel electrodes and common electrodes are formed and a color filter panel is disposed opposing the array panel, and liquid crystals are interposed therebetween. The liquid crystals are aligned parallel to the two panels and driven by parallel electric field formed between the pixel electrodes and reference electrodes. Polarization films are arranged outsides the two panels, and a quasi-A plate compensation film is arranged between the color filter panel and the polarization film.
    Type: Grant
    Filed: October 29, 2007
    Date of Patent: October 20, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hak-Sun Chang, Eun-Hee Han, Chang-Hun Lee, Seon-Hong Ahn
  • Patent number: 7589376
    Abstract: An EEPROM device includes a device isolation layer disposed at a predetermined region of a semiconductor substrate to define active regions, a pair of control gates crossing the device isolation layers and an active region, a pair of selection gates interposed between the control gates to cross the device isolation layers and the active region and a floating gate and an intergate dielectric pattern stacked sequentially between the control gates and the active region The EEPROM device further includes a gate insulation layer of a memory transistor interposed between the floating gate and the active region and a tunnel insulation layer thinner than the gate insulation layer of the memory transistor and a gate insulation layer of a selection transistor interposed between the selection gates and the active region. The tunnel insulation layer is aligned at one side adjacent to the floating gate.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: September 15, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jae-Hwang Kim, Seung-Beom Yoon, Kwang-Wook Koh, Chang-Hun Lee, Sung-Ho Kim, Sung-Chul Park, Ju-Ri Kim
  • Publication number: 20090177937
    Abstract: A resource allocation method for a HARQ is disclosed. This resource allocation method includes, transmitting an MAP message having specific information indicating whether or not a differential allocation is supported, storing MAP information contained in the MAP message during a predetermined frame, and upon receiving an NACK message during the predetermined frame, transmitting sub-burst information having differential allocation information related to sub-bursts to be retransmitted. If there are a large amount of HARQ traffics, each embodiment of the present invention transmits only differential information on the basis of MAP information of the initial MAP message when HARQ sub-bursts is retransmitted.
    Type: Application
    Filed: December 24, 2008
    Publication date: July 9, 2009
    Applicant: LG Electronics Inc.
    Inventors: Chang Hun LEE, Sung Woong Ha, Jeong Ki Kim, Ki Seon Ryu
  • Patent number: 7553725
    Abstract: A nonvolatile memory cell includes a source region and a drain region which are disposed in a semiconductor substrate and spaced apart from each other, a source selection line and a drain selection line disposed over the semiconductor substrate between the source region and the drain region. The source selection line and the drain selection line are disposed adjacent to the source region and the drain region, respectively. The nonvolatile memory cell further includes a cell gate pattern disposed over the semiconductor substrate between the source selection line and the drain selection line, a first floating impurity region provided in the semiconductor substrate under a gap region between the source selection line and the cell gate pattern and a second floating impurity region provided in the semiconductor substrate under a gap region between the drain selection line and the cell gate pattern. Distances between the cell gate pattern and the selection lines are less than widths of the selection lines.
    Type: Grant
    Filed: July 18, 2006
    Date of Patent: June 30, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seog Jeon, Jeong-Uk Han, Chang-Hun Lee, Sung-Taeg Kang, Bo-Young Seo, Hyok-Ki Kwon
  • Patent number: 7532294
    Abstract: A display apparatus comprises a plurality of pixel areas, each defined by gate lines and data lines, wherein the data lines are arranged with the gate lines forming an angular relationship with the data lines, and a plurality of pixel electrodes formed in the pixel areas and configured to be essentially parallel with the arrangement of the gate lines.
    Type: Grant
    Filed: January 12, 2006
    Date of Patent: May 12, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Wuk Kim, Chang-Hun Lee, Hak-Sun Chang, Hee-Wook Do, Jae-Jin Lyu, Yoon-Sung Um
  • Patent number: 7532185
    Abstract: The present invention is directed to an apparatus of driving a liquid crystal display device including a plurality of pixels. The driving apparatus includes a gray voltage generator for generating a plurality of gray voltages, an image signal driver for selecting gray voltages corresponding to color signals and applying the selected gray voltages as image signal voltages to the pixels, and a signal controller for controlling the image signal driver based on the color signals and input control signals for controlling the color signals. At least two successive first gray voltages among the plurality of gray voltages are variable and at least two successive second gray voltages among the plurality of gray voltages are fixed.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: May 12, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Young-Chol Yang, Hak-Sun Chang
  • Publication number: 20090096950
    Abstract: A thin film transistor panel is provided. The thin film transistor panel includes: a substrate; gate lines formed on the substrate; data lines insulated from the gate lines and intersecting the gate lines; thin film transistors which are connected to the gate lines and the data lines and have drain electrodes; capacitive coupling electrodes connected to the drain electrodes; and pixel electrodes which are formed in the pixels surrounded by the gate lines and the data lines and include first pixel electrodes connected to the drain electrodes and second pixel electrodes which are separated from the first pixel electrodes and overlap with the capacitive coupling electrodes, wherein the first and second pixel electrodes of different pixel electrodes have a left-right symmetrical structure.
    Type: Application
    Filed: October 10, 2008
    Publication date: April 16, 2009
    Inventors: Hyun-Wuk Kim, Jae-Jin Lyu, Yoon-Sung Um, Chang-Hun Lee, Mee-Hye Jung, Kyoung-Ju Shin
  • Patent number: 7518583
    Abstract: A liquid crystal display is provided, which includes: groups of gate lines transmitting a gate-on voltage; data lines alternately transmitting normal data voltages and an impulsive data voltage; pixels arranged in a matrix and including switching elements that are connected to the gate lines and the data lines and turn on in response to the gate-on voltage to transmit the data voltages; gate driving circuits connected to respective groups of gate lines and sequentially applying the gate-on voltage to the gate lines; a data driver applying the data voltages to the data lines; a duty ratio selector outputting a duty ratio selection signal informing a selected duty ratio; and a signal controller controlling the gate driver and the data driver based on the duty ratio selection signal, wherein the signal controller determines a time for the application of the impulsive data voltage based on the duty ratio selection signal.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: April 14, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, So-Youn Park, Jong-Lae Kim, Cheol-Woo Park, Sang-Wook Yoo
  • Patent number: 7499129
    Abstract: The invention provides a LCD including an insulating substrate; a plurality of first signal lines formed on the insulating substrate; a plurality of second signal lines crossing and insulated from the first signal lines; a plurality of thin film transistors (TFT) coupled with the first and second signal lines; and a plurality of pixels including a plurality of first sub-pixel electrodes coupled with the TFTs and a plurality of second sub-pixel electrodes capacitively coupled with the first sub-pixel electrodes, wherein the pixels include a red (R) pixel, a green (G) pixel, and a blue (B) pixel and a voltage ratio or an area ratio of the second sub-pixel electrode with respect to the first sub-pixel electrode is different among the R, G, and B pixels to improve a brightness ratio of R, G, and B components at a lateral position.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: March 3, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Jong-Ho Son, Dong-Hoon Chung, Jun-Woo Lee, Yong-Hwan Shin, Jae-Jin Lyu, Hak-Sun Chang, Hyun-Wuk Kim, Chang-Hun Lee