Patents by Inventor Jung Gwan Han
Jung Gwan Han 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: 8188992Abstract: The present invention relates to a method and apparatus for driving a plasma display panel that can be driven at a low voltage and prevent undesired discharge from being generated under high temperature environment.Type: GrantFiled: October 22, 2007Date of Patent: May 29, 2012Assignee: LG Electronics Inc.Inventors: Sang Jin Yoon, Eung Chul Park, Bong Koo Kang, Jung Gwan Han
-
Patent number: 8184072Abstract: The present invention relates to a method and apparatus for driving a plasma display panel that can be driven at a low voltage and prevent undesired discharge from being generated under high temperature environment.Type: GrantFiled: October 22, 2007Date of Patent: May 22, 2012Assignee: LG Electronics Inc.Inventors: Sang Jin Yoon, Eung Chul Park, Bong Koo Kang, Jung Gwan Han
-
Patent number: 8144082Abstract: The present invention relates to a method and apparatus for driving a plasma display panel that can be driven at a low voltage and prevent undesired discharge from being generated under high temperature environment.Type: GrantFiled: October 22, 2007Date of Patent: March 27, 2012Assignee: LG Electronics Inc.Inventors: Sang Jin Yoon, Eung Chul Park, Bong Koo Kang, Jung Gwan Han
-
Patent number: 8077448Abstract: An improved structure of a plasma display apparatus is provided. At least one of an integrated circuit and a driving board is formed over an edge potion of a frame for supporting a plasma display panel. Thus, the plasma display apparatus is manufactured to be thin and light, and also its manufacturing cost decreases.Type: GrantFiled: April 27, 2006Date of Patent: December 13, 2011Assignee: LG Electronics Inc.Inventors: Jaeyoung Oh, Jung Gwan Han, Sam Je Cho
-
Patent number: 7999763Abstract: A plasma display apparatus is disclosed. In the plasma display apparatus, a data signal includes a voltage rising period during which the data signal gradually rises to a first voltage using an inductor, a voltage maintaining period during which the data signal is maintained at a second voltage higher than the first voltage, and a voltage falling period during which the data signal gradually falls to a voltage equal to or less than the second voltage. A magnitude of the first voltage is equal to or more than one half of a magnitude of the second voltage, and is less than the magnitude of the second voltage. A current flowing in the inductor ranges from zero ampere to a maximum current value of the inductor at a time when a voltage of the data signal is equal to the first voltage.Type: GrantFiled: January 12, 2007Date of Patent: August 16, 2011Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Bong Sup Jung, Chi Yun Ok, Hyun Lark Do
-
Patent number: 7952538Abstract: A plasma display apparatus and a method of driving the same are disclosed. The plasma display apparatus includes a plasma display panel including an address electrode, a control board, and a data driver. The control board converts a video signal input from the outside into a differential signal, and transmits the differential signal, wherein the differential signal includes a first signal and a second signal being an inverted signal of the first signal and has a frequency of 200 MHz or more. The data driver receives the differential signal, restores the video signal from the differential signal, and supplies the restored video signal to the address electrode of the plasma display panel.Type: GrantFiled: December 4, 2006Date of Patent: May 31, 2011Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Seongho Kang
-
Patent number: 7852294Abstract: A plasma display apparatus and a driving method thereof are provided. The apparatus includes: an electrode pair having a first electrode and a second electrode, and a third electrode intersecting with the electrode pair; and a first electrode driver, a second electrode driver, and a third electrode driver for applying a driving signal to the respective electrodes, wherein the first electrode driver applies a waveform ramping-up up to a reset voltage during a reset period and falling down to a base voltage substantially without a ramp down.Type: GrantFiled: December 30, 2005Date of Patent: December 14, 2010Assignee: LG Electronics Inc.Inventor: Jung Gwan Han
-
Patent number: 7839359Abstract: Disclosed are a plasma display apparatus and a driving method thereof. The plasma display apparatus includes a plasma display panel having a plurality of address electrodes, a data driver, and a timing controller. The data driver supplies a plurality of data pulses to the plurality of the address electrodes and the timing controller controls a width of a first data pulse of the plurality of data pulses to be different from a width of a second data pulse of the plurality of data pulse.Type: GrantFiled: January 4, 2007Date of Patent: November 23, 2010Assignee: LG Electronics Inc.Inventors: Yoonchang Choi, Jung Gwan Han, Chi Yun Ok, Hyun Lark Do, Kyoung Jin Jung
-
Patent number: 7791563Abstract: The present invention relates to a plasma display apparatus and a method of driving the same. The plasma display apparatus according to the present invention includes a plasma display panel in which data electrodes are formed; and a data voltage controller for applying a data voltage as a floating state or a first state voltage to the data electrodes. The method of driving a plasma display apparatus according to the present invention includes the steps of: (a) applying a first voltage to the data electrodes; and (b) applying a voltage as a ground level or a floating state to the data electrodes.Type: GrantFiled: June 29, 2005Date of Patent: September 7, 2010Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Seong Ho Kang
-
Patent number: 7786955Abstract: A plasma display apparatus includes an image data transmitter to convert an externally input image signal into image data and to transmit the converted image data, an image data receiver to receive the image data and to restore an image signal from the image data, and a data driver to supply the restored image signal to an address electrode of the plasma display panel through a switching operation. The image data may be transmitted as a differential signal.Type: GrantFiled: December 21, 2005Date of Patent: August 31, 2010Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Yang Woog Ryu, Sonic Kim, Dong Kwon Choi
-
Patent number: 7777694Abstract: A plasma display apparatus and a driving method thereof are provided. A plasma display apparatus according to an embodiment of the present invention comprises a plasma display panel comprising an address electrode, a data drive integrated circuit (IC), connected to the address electrode, for supplying a voltage of a data signal supplied from a data voltage source and a bias voltage supplied from a bias voltage source to the address electrode, a bias voltage supply control switch for controlling the bias voltage supplied by the data drive IC, and a data voltage supply control switch for controlling the voltage of the data signal supplied by the data drive IC.Type: GrantFiled: July 6, 2006Date of Patent: August 17, 2010Assignee: LG Electronics Inc.Inventor: Jung Gwan Han
-
Patent number: 7768476Abstract: Embodiments of the present invention relate to a plasma display apparatus in which an arrangement of use channels of data drive ICs is improved. The plasma display apparatus may include a plasma display panel including first and second address electrode groups that correspond to first and second screen regions, respectively, and that match each other. First data drive ICs may include channels connected to the first address electrode group. Second data drive ICs may include channels connected to the second address electrode group. An nth channel of the first data drive ICs from one side of the first screen region may be a dummy channel, an nth channel from the other side of the first screen region may be a dummy channel, and an nth channel of the second data drive ICs from one side of the second screen region, which matches the one side of the first screen region, may also be a dummy channel.Type: GrantFiled: February 8, 2006Date of Patent: August 3, 2010Assignee: LG Electronics Inc.Inventor: Jung Gwan Han
-
Patent number: 7760160Abstract: Embodiments of the present invention may relate to a plasma display apparatus and a driving method thereof, to reduce the magnitude of noise. The driving method may include applying a ramp-down waveform decreasing to a first voltage to a plurality of scan electrodes, applying a ramp-up waveform increasing from the first voltage to a second voltage gradually with a gradient to the scan electrodes, and applying a scan pulse decreasing from the second voltage to a third voltage to the scan electrodes.Type: GrantFiled: January 5, 2006Date of Patent: July 20, 2010Assignee: LG Electronics Inc.Inventor: Jung Gwan Han
-
Patent number: 7755571Abstract: A plasma display apparatus is disclosed. The apparatus includes: a data driver for applying a data voltage to a plurality of address electrodes; and a connection unit connected between the address electrode and the data driver, and having a different resistance from the address electrode.Type: GrantFiled: December 22, 2005Date of Patent: July 13, 2010Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Seong Ho Kang
-
Patent number: 7733301Abstract: The present invention relates to a plasma display apparatus and driving method thereof, wherein rising and/or falling times of data pulses applied to address electrodes in an address period are controlled to reduce noise generation. Thus, address discharge is stabilized, discharge efficiency of plasma display panel is enhanced, and electrical damage to data drive ICs is prevented. The plasma display apparatus includes a plasma display panel including a plurality of address electrodes, a data driving unit including a plurality of data drive ICs that has a plurality of channels, wherein the data drive ICs are electrically connected to the address electrodes through the channels and drive the address electrodes, and a data pulse controller that controls the voltage-rising time and/or the voltage-falling time of the data pulses applied to the plurality of the address electrodes in an address period to be a sufficient duration, e.g. 100 ns or longer, by controlling the data driving unit.Type: GrantFiled: February 15, 2006Date of Patent: June 8, 2010Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Katsuo Isono
-
Patent number: 7714805Abstract: Disclosed therein a method of driving a plasma display panel, which can improve display quality. The method is separately driven by a data driving period for supplying a driving waveform and a preliminary period for raising voltages for supplying the driving waveform up to a desired voltage, in order to display an image in each discharge cell, wherein a waveform supplied to electrodes during a sustain period of the data driving period is different from a waveform supplied to the electrodes during a sustain period of the preliminary period. The method does not create a sustain discharge during a sustain period and prevents an afterimage caused by a previous state when the PDP is turned on from being displayed, improving display quality. Moreover, charges within a discharge cell are eliminated by supplying a ground voltage to electrodes for 1 to 3 seconds, preferably 2 seconds, before a data driving waveform is supplied.Type: GrantFiled: December 29, 2004Date of Patent: May 11, 2010Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Soo Seok Sim
-
Patent number: 7688285Abstract: The present invention discloses a method for driving a plasma display apparatus, wherein a scan signal, of which at least one of the voltage rising time or the voltage falling time is from 20 ns to 150 ns, is supplied to a scan electrode.Type: GrantFiled: May 24, 2006Date of Patent: March 30, 2010Assignee: LG Electronics Inc.Inventor: Jung Gwan Han
-
Patent number: 7626563Abstract: The present invention relates to a plasma display panel, and more particularly, to a plasma display apparatus and a method of driving a plasma display panel including address electrodes (X) and scan electrodes (Y). The plasma display apparatus according to the present invention includes a plasma display panel including a plurality of scan electrodes and a plurality of address electrodes formed to cross the scan electrodes; a driving unit for driving the plurality of address electrodes; and a driving pulse controller for controlling the driving unit so that a voltage falling time of a data pulse supplied to one and more address electrode groups among a plurality of address electrode groups including one or more address electrodes in an address period ranges from no less than 50 ns to no more than 300 ns.Type: GrantFiled: June 29, 2005Date of Patent: December 1, 2009Assignee: LG Electronics Inc.Inventors: Seong Ho Kang, Jung Gwan Han
-
Patent number: 7619587Abstract: A plasma display apparatus for reducing heat generated in a data driver for supplying a driving voltage to an address electrode formed on a plasma display panel when driving the plasma display apparatus, and a driving method of the same are provided. The plasma display apparatus includes a plasma display panel including an address electrode and a driver. The driver supplies the first data pulse to the address electrode when a temperature of the plasma display panel or an ambient temperature of the plasma display panel is less than a first temperature. Further, the driver supplies the second data pulse different from the first data pulse to the address electrode when the temperature of the plasma display panel or the ambient temperature of the plasma display panel is equal to or more than the first temperature.Type: GrantFiled: April 27, 2006Date of Patent: November 17, 2009Assignee: LG Electronics Inc.Inventors: Jung Gwan Han, Seongho Kang
-
Patent number: 7598931Abstract: A plasma display apparatus has scan electrodes, data electrodes intersecting the scan electrodes, and discharge cells disposed at the intersections of the scan electrodes and the data electrodes. A scan driving unit scans the scan electrodes. A data driving unit supplies a data signal to the data electrodes, and a control unit controls the scan driving unit and the data driving unit. The control unit detects data patterns of input data to detect the load of data, and controls the scan of the scan driving unit according to the load. As such, if the scan electrodes are divided into two or more groups and supplied with scan signals, variation in the polarity of data signals applied to the data electrodes can be minimized.Type: GrantFiled: June 27, 2005Date of Patent: October 6, 2009Assignee: LG Electronics Inc.Inventor: Jung Gwan Han