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: 7990484
    Abstract: In a method of fabricating a liquid crystal display, an insulating layer for storage capacitors is reduced in thickness to increase the storage capacity while maintaining the aperture ratio in a stable manner. A thin film transistor array panel for the liquid crystal display includes an insulating substrate, and a gate line assembly and a storage capacitor line assembly formed on the insulating substrate. The gate line assembly has gate lines and gate electrodes. A gate insulating layer covers the gate line assembly and the storage capacitor line assembly. A semiconductor pattern is formed on the gate insulating layer. A data line assembly and storage capacitor conductive patterns are formed on the gate insulating layer overlaid with the semiconductor pattern. The data line assembly has data lines, source electrodes and drain electrodes. The storage capacitor conductive patterns are partially overlapped with the storage capacitor line assembly to thereby form first storage capacitors.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: August 2, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Nam-Hung Kim, Hak-Sun Chang, Jae-Jin Lyu
  • Patent number: 7973899
    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: Grant
    Filed: August 20, 2009
    Date of Patent: July 5, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hyun-Wuk Kim, Jae-Jin Lyu, Yoon-Sung Um, Chang-Hun Lee
  • Patent number: 7956943
    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 1, 2009
    Date of Patent: June 7, 2011
    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: 7952674
    Abstract: A display apparatus, includes: a first substrate; a gate line formed over the first substrate; a data line traversing the gate line, and comprising a source electrode; a drain electrode facing the source electrode to define a channel area; a passivation layer formed over the data line and the drain electrode, and comprising an organic material; a pixel electrode formed over the passivation layer, and comprising a first stem electrode, at least a part of which is overlapped with the gate line or the data line, and a plurality of first branch electrodes contacted to the first stem electrode where one set of the first branch electrodes extend longitudinally in a direction different from the longitudinal extension direction of another set of the first branch electrodes so as to thereby cause opposed twisting of corresponding liquid crystal material.
    Type: Grant
    Filed: May 4, 2010
    Date of Patent: May 31, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Chang-hun Lee
  • Patent number: 7944537
    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: September 25, 2009
    Date of Patent: May 17, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Eun-Hee Han, Hak-Sun Chang
  • Patent number: 7916227
    Abstract: In a method of fabricating a liquid crystal display, an insulating layer for storage capacitors is reduced in thickness to increase the storage capacity while maintaining the aperture ratio in a stable manner. A thin film transistor array panel for the liquid crystal display includes an insulating substrate, and a gate line assembly and a storage capacitor line assembly formed on the insulating substrate. The gate line assembly has gate lines and gate electrodes. A gate insulating layer covers the gate line assembly and the storage capacitor line assembly. A semiconductor pattern is formed on the gate insulating layer. A data line assembly and storage capacitor conductive patterns are formed on the gate insulating layer overlaid with the semiconductor pattern. The data line assembly has data lines, source electrodes and drain electrodes. The storage capacitor conductive patterns are partially overlapped with the storage capacitor line assembly to thereby form first storage capacitors.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: March 29, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Nam-Hung Kim, Hak-Sun Chang, Jae-Jin Lyu
  • Patent number: 7916226
    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 1, 2009
    Date of Patent: March 29, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Hyun-Wuk Kim, Mee-Hye Jung, Kyoung-Ju Shin, Hak-Sun Chang, Yoon-Sung Um
  • Publication number: 20110013573
    Abstract: A method for requesting a bandwidth in a wireless access system is disclosed. In the method for requesting a bandwidth in a wireless access system, when a base station receives an uplink MAC PDU from a mobile station, if there is a polling request field in a generic MAC header, the base station allocates a bandwidth, which can transmit a BR header, to the mobile station. Then, the mobile station transmits a BR header to a region allocated from the base station so as to be allocated with a resource for transmitting data from the base station and to transmit data to the region.
    Type: Application
    Filed: December 11, 2008
    Publication date: January 20, 2011
    Inventors: Jeong Ki Kim, Ki Seon Ryu, Sung Woong Ha, Chang Hun Lee
  • Publication number: 20110007059
    Abstract: A liquid crystal display (“LCD”) includes a plurality of gate lines, a plurality of data lines intersecting the gate lines, a plurality of switching elements connected to the gate lines and the data lines, a plurality of storage electrodes, a plurality of storage electrode lines connected to the storage electrodes, a plurality of pixel electrodes connected to the switching elements and overlapping the storage electrodes, a gate driver generating gate signals having a gate-on voltage and a gate-off voltage to apply to the gate lines, a data driver generating data voltages corresponding to externally applied image signals to apply to the data lines, and a storage electrode driver generating storage electrode signals having a reference voltage, a high voltage larger than the reference voltage, and a low voltage smaller than the reference voltage to apply to the storage electrode lines.
    Type: Application
    Filed: September 13, 2010
    Publication date: January 13, 2011
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hee-Wook DO, Ji-Won SOHN, Nak-Cho CHOI, Jianang LU, Hak-Sun CHANG, Chang-Hun LEE
  • Patent number: 7868953
    Abstract: In a method of fabricating a liquid crystal display, an insulating layer for storage capacitors is reduced in thickness to increase the storage capacity while maintaining the aperture ratio in a stable manner. A thin film transistor array panel for the liquid crystal display includes an insulating substrate, and a gate line assembly and a storage capacitor line assembly formed on the insulating substrate. The gate line assembly has gate lines and gate electrodes. A gate insulating layer covers the gate line assembly and the storage capacitor line assembly. A semiconductor pattern is formed on the gate insulating layer. A data line assembly and storage capacitor conductive patterns are formed on the gate insulating layer overlaid with the semiconductor pattern. The data line assembly has data lines, source electrodes and drain electrodes. The storage capacitor conductive patterns are partially overlapped with the storage capacitor line assembly to thereby form first storage capacitors.
    Type: Grant
    Filed: April 5, 2007
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Chang-Hun Lee, Nam-Hung Kim, Hak-Soo Chang, Jae-Jin Lyu
  • Publication number: 20100304540
    Abstract: There is provided a semiconductor device and a method of forming the same. The semiconductor device includes a memory device and a self-aligned selection device. A floating junction is formed between the self-aligned selection device and the memory device.
    Type: Application
    Filed: August 12, 2010
    Publication date: December 2, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seog Jeon, Jeong-Uk Han, Chang-Hun Lee, Sung-Taeg Kang
  • Patent number: 7839369
    Abstract: A liquid crystal display is provided, which includes: a plurality of pixels; a gray voltage generator generating a plurality of gray voltages; an image signal modifier that receives first, second, and third image signals for a pixel in three successive frames, generates a preliminary signal for the second image signal based on the first image signal, and generates a modified signal for the second image signal based on the preliminary signal and the third image signal; and a data driver converting the modified signal into a data voltage selected from the gray voltages and applying the data voltage to the pixel, wherein a range of the gray voltages is substantially equal to a range of target voltages for obtaining target luminance of the pixel, and a highest available value for the modified signal is equal to a highest available value of the image signals.
    Type: Grant
    Filed: September 30, 2005
    Date of Patent: November 23, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hak-Sun Chang, Ji-Won Sohn, Nak-Cho Choi, Hyun-Wuk Kim, Chang-Hun Lee, Jae-Jin Lyu
  • Publication number: 20100290411
    Abstract: A method for allocating resource regions in a wireless access system is provided. This method collectively allocates resources in non-consecutive frames. Specifically, a message, including allocation information used to collectively and non-consecutively allocate identical resource regions, is received from a base station and data is transmitted or received through the allocated resource regions. Since identical resource regions are collectively allocated in multiple frames, it is possible to reduce both the number of transmissions of a MAP message and MAP overhead in a network.
    Type: Application
    Filed: October 15, 2008
    Publication date: November 18, 2010
    Inventors: Jeong Ki Kim, Ki Seon Ryu, Hee Jeong Cho, Jae Won Lim, Sung Woong Ha, Chang Hun Lee
  • Patent number: 7834945
    Abstract: A first pixel electrode and a second pixel are formed in a pixel area. The first pixel electrode is coupled to the second pixel electrode via a coupling capacitance. A voltage is applied to the second pixel electrode from the first pixel electrode through the coupling capacitance. Therefore the voltage applied to the second pixel electrode depends on the voltage applied to the first pixel electrode and the two voltages have a certain ratio. Applying two different voltages in a pixel area can improve display quality.
    Type: Grant
    Filed: July 7, 2005
    Date of Patent: November 16, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Yoon-Sung Um, Jae-Jin Lyu, Chang-Hun Lee, Mee-Hye Jung
  • Patent number: 7817123
    Abstract: A liquid crystal display (“LCD”) includes a plurality of gate lines, a plurality of data lines intersecting the gate lines, a plurality of switching elements connected to the gate lines and the data lines, a plurality of storage electrodes, a plurality of storage electrode lines connected to the storage electrodes, a plurality of pixel electrodes connected to the switching elements and overlapping the storage electrodes, a gate driver generating gate signals having a gate-on voltage and a gate-off voltage to apply to the gate lines, a data driver generating data voltages corresponding to externally applied image signals to apply to the data lines, and a storage electrode driver generating storage electrode signals having a reference voltage, a high voltage larger than the reference voltage, and a low voltage smaller than the reference voltage to apply to the storage electrode lines.
    Type: Grant
    Filed: February 7, 2006
    Date of Patent: October 19, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Wook Do, Ji-Won Sohn, Nak-Cho Choi, Jiangang Lu, Hak-Sun Chang, Chang-Hun Lee
  • Patent number: 7800158
    Abstract: There is provided a semiconductor device and a method of forming the same. The semiconductor device includes a memory device and a self-aligned selection device. A floating junction is formed between the self-aligned selection device and the memory device.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: September 21, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hee-Seog Jeon, Jeong-Uk Han, Chang-Hun Lee, Sung-Taeg Kang
  • Patent number: 7791680
    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: Grant
    Filed: December 6, 2006
    Date of Patent: September 7, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jun-woo Lee, Hee-seop Kim, Chang-hun Lee, Eun-hee Han
  • Patent number: D636748
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: April 26, 2011
    Assignee: LG Electronics Inc.
    Inventors: Yeon Jin Kim, Yong Ho Lee, Jin Hee Kim, Eun Bong Lee, Kyong Tae Han, Chang Hun Lee
  • Patent number: D638389
    Type: Grant
    Filed: November 10, 2010
    Date of Patent: May 24, 2011
    Assignee: LG Electronics Inc.
    Inventors: Yeon Jin Kim, Yong Ho Lee, Jin Hee Kim, Eun Bong Lee, Kyong Tae Han, Chang Hun Lee
  • Patent number: D639307
    Type: Grant
    Filed: April 7, 2010
    Date of Patent: June 7, 2011
    Assignee: LG Electronics Inc.
    Inventors: Chang Hun Lee, Bo Hyun Nam