Patents by Inventor Sung Chun Choi
Sung Chun Choi 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).
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Patent number: 7714808Abstract: A plasma display apparatus comprises a scan electrode and a sustain electrode; a data electrode for intersecting the scan electrode and the sustain electrode; and a pulse controller for controlling to apply a pulse having an opposite phase to the scan electrode and the sustain electrode during a reset period and apply a negative sustain pulse to the scan electrode and the sustain electrode during a sustain period, wherein a distance between the scan electrode and the sustain electrode is longer than that between the sustain electrode and the data electrode. Therefore, a surface discharge mode can be used even when applying negative pulses to the sustain electrode in a reset period, and a size and cost of a plasma display apparatus can be reduced by applying a negative pulse of the same magnitude as a sustain voltage without a separate negative voltage source.Type: GrantFiled: December 26, 2006Date of Patent: May 11, 2010Assignee: LG Electronics Inc.Inventors: Dongki Paik, Jongrae Lim, Tae Heon Kim, Wootae Kim, Sung Chun Choi
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Publication number: 20080265740Abstract: A plasma display panel is disclosed, which includes a first panel provided with an address electrode, a first dielectric, and a phosphor on a first substrate, and a second panel bonded to the first panel by interposing a barrier therebetween, including a transparent electrode, a bus electrode, a second dielectric provided with high dielectric particles, and a protective layer on a second substrate.Type: ApplicationFiled: April 2, 2008Publication date: October 30, 2008Inventors: Young Han Lee, Ho Seong Choi, Sung Chun Choi
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Publication number: 20080231163Abstract: A plasma display panel and a method for manufacturing the same are disclosed. The plasma display panel includes a first substrate comprising first electrodes, a second substrate arranged to face the first substrate, the second substrate comprising second electrodes, barrier ribs formed between the first and second substrates, to define discharge cells, and a phosphor layer formed in each of the discharge cells. The phosphor layer includes a phosphor and a dielectric having a secondary electron emission coefficient higher than the phosphor.Type: ApplicationFiled: March 19, 2008Publication date: September 25, 2008Inventor: Sung Chun CHOI
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Publication number: 20080157668Abstract: Disclosed are a plasma display panel and a method of manufacturing the same. The plasma display panel includes a scan electrode and a sustain electrode formed on a glass substrate, each including a discharge ignition part for generating initial discharge and a discharge diffusion portion for diffusing discharge to the entirety using the initial discharge, and the plasma display panel includes a dielectric layer disposed on a upper side of the glass substrate to cover the scan electrode and sustain electrode.Type: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Inventors: Dongki Paik, Kwang Yeol Choi, Jongrae Lim, Wootae Kim, Sung Chun Choi
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Publication number: 20080158214Abstract: A method of driving a plasma display panel is disclosed. According to a negative sustain driving method for a plasma display panel using a negative sustain voltage, the negative sustain voltage and the ground level voltage are alternately applied to each of scan electrode Y and sustain electrode Z in a sustain period, and the negative sustain voltage is first applied to the sustain electrode Z.Type: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Inventors: Dongki Paik, Jongrae Lim, Tae Heon Kim, Wootae Kim, Sung Chun Choi
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Publication number: 20080158098Abstract: A method of driving a plasma display panel is disclosed. The method including a scan electrode, a sustain electrode, and a barrier rib includes applying a scan pulse of a positive polarity to the scan electrode for an address period, and applying a data pulse of a negative polarity corresponding to the scan pulse of the positive polarity to the address electrode for the address period. A gap between the scan electrode and the sustain electrode positioned within a discharge cell partitioned by the barrier rib is more than a height of the barrier rib.Type: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Applicant: LG ELECTRONICS INC.Inventors: Dongki Paik, Jongrae Lim, Tae Heon Kim, Wootae Kim, Sung Chun Choi
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Publication number: 20080158099Abstract: A plasma display panel comprises a front panel having a front glass, and a rear panel opposing the front panel. The rear panel includes a rear glass positioned to face the front glass, an address electrode formed on the rear glass, a lower dielectric layer covering the address electrode, a barrier rib, positioned on the lower dielectric layer, partitioning a discharge cell. At least one of a scan electrode and a sustain electrode is formed inside the barrier rib. A gap between the scan electrode and the sustain electrode is greater than a height of the barrier rib. The address electrode intersects with the scan electrode and the sustain electrode, and has a protrusion electrode in proximity to the scan electrode.Type: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Inventors: Dongki Paik, Kwang Yeol Choi, Jongrae Lim, Wootae Kim, Sung Chun Choi
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Publication number: 20080157670Abstract: A plasma display panel and a method of manufacturing the plasma display panel are disclosed. The plasma display panel includes a scan electrode, a sustain electrode, and a barrier rib formed on a glass, and an upper dielectric layer having a differential thickness formed on the glass. The upper dielectric layer covers the scan electrode and the sustain electrode. As the upper dielectric layer is far away from a discharge region portion between the scan electrode and sustain electrode, the width of the upper dielectric layer gradually increases. A distance between the scan electrode and the sustain electrode positioned within a discharge cell partitioned by the barrier rib is more than a height of the barrier rib.Type: ApplicationFiled: December 29, 2006Publication date: July 3, 2008Applicant: LG ELECTRONICS INC.Inventors: Dongki PAIK, Kwang Yeol Choi, Jongrae Lim, Wootae Kim, Sung Chun Choi
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Publication number: 20080150835Abstract: Disclosed are a plasma display apparatus and a driving method thereof. The plasma display apparatus includes a plasma display panel comprising a plurality of scan electrodes and sustain electrodes, a driver driving the plurality of scan electrodes and sustain electrodes, and a negative sustain pulse controller controlling the driver and adjusting each of an energy supply time and an energy recovery time of a negative sustain pulse supplied to one or more of the scan electrodes or sustain electrodes during a sustain period.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Applicant: LG ELECTRONICS INC.Inventors: Dongki PAIK, Jongrae Lim, Tae Heon Kim, Wootae Kim, Sung Chun Choi
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Publication number: 20080150836Abstract: A plasma display apparatus comprises a scan electrode and a sustain electrode; a data electrode for intersecting the scan electrode and the sustain electrode; and a pulse controller for controlling to apply a pulse having an opposite phase to the scan electrode and the sustain electrode during a reset period and apply a negative sustain pulse to the scan electrode and the sustain electrode during a sustain period, wherein a distance between the scan electrode and the sustain electrode is longer than that between the sustain electrode and the data electrode. Therefore, a surface discharge mode can be used even when applying negative pulses to the sustain electrode in a reset period, and a size and cost of a plasma display apparatus can be reduced by applying a negative pulse of the same magnitude as a sustain voltage without a separate negative voltage source.Type: ApplicationFiled: December 26, 2006Publication date: June 26, 2008Inventors: Dongki Paik, Jongrae Lim, Tae Heon Kim, Wootae Kim, Sung Chun Choi
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Publication number: 20080111770Abstract: A method for driving a plasma display panel is disclosed. The panel comprises a scan electrode and a sustain electrode, which are formed on an upper substrate in parallel to each other, and an address electrode formed on a lower substrate in the direction where the address electrode intersects the scan electrode and the sustain electrode. The method comprises generating an opposite discharge between one of the scan electrode and the sustain electrode and the address electrode during a sustain period, and generating a surface discharge between the scan electrode and the sustain electrode after the opposite discharge is generated.Type: ApplicationFiled: October 31, 2007Publication date: May 15, 2008Inventors: Sung Chun CHOI, Jungwon Kang, Jun Weon Song
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Patent number: 7319292Abstract: A plasma display panel is disclosed. More particularly, the present invention relates to a plasma display panel, which can improve discharge stability as well as brightness and efficiency. The plasma display panel according to the present invention includes transparent electrodes (ITO electrodes) spaced in parallel to each other at a predetermined distance; and metal electrodes each formed on the transparent electrodes (ITO electrodes) in parallel to the transparent electrodes (ITO electrodes) so that the respective transparent electrodes (ITO electrodes) are inclined toward the side where the transparent electrodes face.Type: GrantFiled: March 3, 2004Date of Patent: January 15, 2008Assignee: LG Electronics Inc.Inventors: Sung Chun Choi, Jungwon Kang, Jun Weon Song
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Patent number: 7310075Abstract: A PDP and a driving method thereof are disclosed in which luminous efficiency can be improved. The PDP includes: a pair of sustain electrodes formed at a peripheral portion of an upper substrate; and a trigger electrode formed at the center of the upper substrate.Type: GrantFiled: April 20, 2005Date of Patent: December 18, 2007Assignee: LG Electronics Inc.Inventors: Sung Ju Yoon, Sung Chun Choi, Insook Lee
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Patent number: 7310073Abstract: The present invention relates to a plasma display panel, and more particularly, to an electrode structure of a plasma display panel capable of improving brightness and efficiency. According to a first embodiment of the present invention, in a plasma display panel of a long column structure having a front substrate and a rear substrate that are opposite to each other, the transparent electrodes of the scan electrodes or the sustain electrodes include projections projected toward the center of the discharge cells every discharge cell. Also, a discharge start voltage and a discharge sustain voltage can be lowered and brightness and efficiency can be increased. It is also possible to maintain color temperature equilibrium every RGB cell and to reduce an erroneous discharge of each cell.Type: GrantFiled: August 31, 2004Date of Patent: December 18, 2007Assignee: LG Electronics Inc.Inventors: Jae Bum Park, Sung Chun Choi
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Publication number: 20040233128Abstract: A plasma display panel is disclosed. More particularly, the present invention relates to a plasma display panel, which can improve discharge stability as well as brightness and efficiency. The plasma display panel according to the present invention includes transparent electrodes (ITO electrodes) spaced in parallel to each other at a predetermined distance; and metal electrodes each formed on the transparent electrodes (ITO electrodes) in parallel to the transparent electrodes (ITO electrodes) so that the respective transparent electrodes (ITO electrodes) are inclined toward the side where the transparent electrodes face.Type: ApplicationFiled: March 3, 2004Publication date: November 25, 2004Inventors: Sung Chun Choi, Jungwon Kang, Jun Weon Song
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Patent number: 6791517Abstract: A PDP and a driving method thereof are disclosed in which luminous efficiency can be improved. The PDP includes a scan/sustain electrode formed at a peripheral portion of a discharge cell, a common sustain electrode formed to oppose the scan/sustain electrode at the peripheral portion of the discharge cell, a first trigger electrode formed to be adjacent to the scan/sustain electrode, and a second trigger electrode formed to be adjacent to the common sustain electrode.Type: GrantFiled: November 6, 2001Date of Patent: September 14, 2004Assignee: LG Electronics Inc.Inventor: Sung Chun Choi
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Publication number: 20020084953Abstract: A PDP and a driving method thereof are disclosed in which luminous efficiency can be improved. The PDP includes includes: a pair of sustain electrodes formed at a peripheral portion of an upper substrate; and a trigger electrode formed at the center of the upper substrate.Type: ApplicationFiled: November 30, 2001Publication date: July 4, 2002Applicant: LG ELECTRONICS INC.Inventors: Sung Ju Yoon, Sung Chun Choi, Insook Lee
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Publication number: 20020074944Abstract: A mixed discharge gas of a PDP is disclosed, which includes at least one inert gas. At this time, Xe is contained at a ratio of 3˜20% in the mixed discharge gas, and a pressure is kept between 300 torr and 700 torr, thereby enhancing efficiency and a life span of the PDP.Type: ApplicationFiled: December 12, 2001Publication date: June 20, 2002Applicant: LG Electronics Inc.Inventors: Insook Lee, Seong Ju Yoon, Sung Chun Choi
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Publication number: 20020053883Abstract: A PDP and a driving method thereof are disclosed in which luminous efficiency can be improved. The PDP includes a scan/sustain electrode formed at a peripheral portion of a discharge cell, a common sustain electrode formed to oppose the scan/sustain electrode at the peripheral portion of the discharge cell, a first trigger electrode formed to be adjacent to the scan/sustain electrode, and a second trigger electrode formed to be adjacent to the common sustain electrode.Type: ApplicationFiled: November 6, 2001Publication date: May 9, 2002Applicant: LG Electronics Inc.Inventor: Sung Chun Choi