Patents by Inventor Eun-Cheol Lee
Eun-Cheol 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: 7348939Abstract: It is disclosed that there are a method and an apparatus of driving a plasma display panel that are adaptive for reducing an initialization period. A driving apparatus and a method of a plasma display panel according to the present invention include a driving circuit applying to the plasma display panel a ramp-up waveform rising from a first bias voltage and a ramp-down waveform falling down from a second bias voltage.Type: GrantFiled: November 28, 2006Date of Patent: March 25, 2008Assignee: LG Electronics Inc.Inventors: Eun Cheol Lee, Seong Ho Kang
-
Patent number: 7227513Abstract: A plasma display panel and a driving method thereof that is capable of improving a discharge efficiency as well as preventing a crosstalk. In the panel, an address electrode is included in each discharge cell making a unit pixel of the plasma display panel. A plurality of second sustain electrodes are positioned at each periphery of the discharge cell in a direction crossing the address electrode to receive a second sustaining pulse. At least one of first sustain electrode is positioned at the center of the discharge cell in a direction crossing the address electrode to receive a first sustaining pulse applied alternately with respect to the second sustaining pulse.Type: GrantFiled: June 13, 2001Date of Patent: June 5, 2007Assignee: LG Electronics IncInventors: Eun Cheol Lee, Young Kyo Shin
-
Publication number: 20070108903Abstract: A plasma display panel and a method and apparatus for driving the same that are capable of preventing miss-writing and improving discharge and light-emission efficiencies. In the panel, an upper substrate and a lower substrate are opposed to each other with having a plurality of discharge cells therebetween. A first upper electrode group includes at least one electrode having a desired width and is formed on the upper substrate. A second upper electrode group includes at least one electrode having a different width from the first upper electrode group and is formed on the upper substrate in such a manner to be adjacent to the first upper electrode group. A data electrode is provided on the lower substrate in such a manner to be perpendicular to the first and second upper electrode group. In the method and apparatus, a short-path discharge occurs between two electrodes spaced at a small distance from each other, of electrodes included in the first and second upper electrode groups.Type: ApplicationFiled: October 16, 2006Publication date: May 17, 2007Inventors: Eun-Cheol Lee, Jae-Sung Kim, Young-Joon Ahn, Seok Kang, Young-Kyo Shin, Sung-Yong Ahn, Song-Won Chi, Jae-Hong Lee, Tae-Wan Choi, Jeong-Pil Choi, Tae-Hyung Kim, Geun-Soo Lim
-
Publication number: 20070096191Abstract: A coupling capacitor and a semiconductor memory device using the same are provided. In an embodiment, each memory cell of the semiconductor memory device includes a coupling capacitor so that a storage capacitor can store at least 2 bits of data. The coupling capacitor has a capacitance having a predetermined ratio with respect to the capacitance of the storage capacitor. For this, the coupling capacitor is formed by substantially the same fabrication process as the storage capacitor. The predetermined ratio is obtained by choosing an appropriate number of individual capacitors, each with the same capacitance of the storage capacitor, to comprise the coupling capacitor. Also, the coupling capacitor is disposed on an interlayer insulating layer that buries a bit line in a cell region and a sense amplifier in a sense amplifier region.Type: ApplicationFiled: July 31, 2006Publication date: May 3, 2007Inventors: Eun-Cheol LEE, Won-Suk YANG, Jin-Woo LEE, Tae-Young CHUNG
-
Publication number: 20060289931Abstract: A recessed gate structure in a semiconductor device includes a gate electrode partially buried in a substrate, a blocking member formed in the buried portion of the gate electrode, and a gate insulation layer formed between the gate electrode and the substrate. The blocking member may effectively prevent a void or a seam in the buried portion of the gate electrode from contacting the gate insulation layer adjacent to a channel region in subsequent manufacturing processes. Thus, the semiconductor device may have a regular threshold voltage and a leakage current passing through the void or the seam may efficiently decrease.Type: ApplicationFiled: August 22, 2006Publication date: December 28, 2006Inventors: Yong-Sung Kim, Tae-Young Chung, Soo-Ho Shin, Eun-Cheol Lee
-
Patent number: 7148863Abstract: It is disclosed that there are a method and an apparatus of driving a plasma display panel that are adaptive for reducing an initialization period. A driving apparatus and a method of a plasma display panel according to the present invention include a driving circuit applying to the plasma display panel a ramp-up waveform rising from a first bias voltage and a ramp-down waveform falling down from a second bias voltage.Type: GrantFiled: December 27, 2002Date of Patent: December 12, 2006Assignee: LG Electronics Inc.Inventors: Eun Cheol Lee, Seong Ho Kang
-
Patent number: 7133005Abstract: A plasma display panel and a method and apparatus for driving the same that are capable of preventing miss-writing and improving discharge and light-emission efficiencies. In the panel, an upper substrate and a lower substrate are opposed to each other with having a plurality of discharge cells therebetween. A first upper electrode group includes at least one electrode having a desired width and is formed on the upper substrate. A second upper electrode group includes at least one electrode having a different width from the first upper electrode group and is formed on the upper substrate in such a manner to be adjacent to the first upper electrode group. A data electrode is provided on the lower substrate in such a manner to be perpendicular the first and second upper electrode group. In the method and apparatus, a short-path discharge occurs between two electrodes spaced at a small distance from each other, of electrodes included in the first and second upper electrode groups.Type: GrantFiled: July 3, 2001Date of Patent: November 7, 2006Assignee: LG Electronics Inc.Inventors: Eun-Cheol Lee, Jae-Sung Kim, Young-Joon Ahn, Seok Dong Kang, Young-Kyo Shin, Sung-Yong Ahn, Song-Won Chi, Jae-Hong Lee, Tae-Wan Choi, Jeong-Pil Choi, Tae-Hyung Kim, Geun-Soo Lim
-
Patent number: 7106278Abstract: A plasma display panel and a driving method thereof that are capable of improving the discharge efficiency and the brightness. In the panel, sustaining electrodes are formed at the boundary portions between the discharge cells. Trigger electrodes are formed at the inner sides of the discharge cells. Lattice-shaped barrier ribs are formed in such a manner to surround the discharge cells. The method of driving the panel includes a reset period, an address period and a sustaining period. In the method, a reset pulse is applied to the sustaining electrodes during the reset period. A scanning pulse is applied to the trigger electrodes during the address period. A first sustaining pulse is applied to the trigger electrodes during the sustaining period. A second sustaining pulse is applied to the sustaining electrodes in such a manner to be alternate with the first sustaining pulse.Type: GrantFiled: February 2, 2001Date of Patent: September 12, 2006Assignee: LG Electronics Inc.Inventors: Jae Sung Kim, Eun Cheol Lee, Seok Dong Kang
-
Patent number: 7071622Abstract: A plasma display panel having higher light-emitting luminance and efficiency of a discharge cell includes: a plurality of first barriers successively formed on a substrate at predetermined intervals; a plurality of first sustain electrodes formed at a width more than 40% of a pixel pitch, which is an overall distance of four of the barriers, to be orthogonal to the first barriers; a plurality of second sustain electrodes spaced apart from the first sustain electrodes at a distance less than 20% of the pixel pitch and mated with the first sustain electrodes one by one; a dielectric layer formed at a thickness of 25 ?m or more to cover the first and second sustain electrodes; and a plurality of pads formed on some of the dielectric layer corresponding to the first sustain electrodes and the second sustain electrodes in each discharge cell.Type: GrantFiled: November 25, 2003Date of Patent: July 4, 2006Assignee: LG Electronics Inc.Inventors: Jae Sung Kim, Chung Huan Jeon, Eun Cheol Lee, Young Joon Ahn, Seok Dong Kang, Sung Yong Ahn
-
Patent number: 6980178Abstract: A method of driving a plasma display panel that is adaptive for improving brightness and efficiency. In the method, a sustaining pulse for sustaining a discharge of a cell selected in a sustaining interval is alternately applied to each of a sustaining electrode pair. A pulse signal synchronized with the sustaining pulse is applied to a data electrode to cause a discharge for inducing a long-path discharge between the sustaining electrode pair between any one of the sustaining electrode pair and the data electrode.Type: GrantFiled: September 7, 2001Date of Patent: December 27, 2005Assignee: LG Electronics Inc.Inventors: Jae Hong Lee, Young Kyo Shin, Eun Cheol Lee, Sung Yong Ahn
-
Publication number: 20050282343Abstract: According to some embodiments of the invention, a method of forming a transistor includes forming a device isolation layer in a semiconductor substrate. The device isolation layer is formed to define at least one active region. A channel region is formed in a predetermined portion of the active region of the semiconductor substrate. Two channel portion holes are formed to extend downward from a main surface of the semiconductor substrate to be in contact with the channel region. Gate patterns fill the channel portion holes and cross the active region. The resulting transistor is capable of ensuring a constant threshold voltage without being affected by an alignment state of the channel portion hole and the gate pattern.Type: ApplicationFiled: June 17, 2005Publication date: December 22, 2005Inventors: Soo-Ho Shin, Jin-Woo Lee, Eun-Cheol Lee
-
Patent number: 6956331Abstract: A plasma display panel driving method that is adaptive for improving contrast. In the method, at least one of the first and second electrodes keeps a floating state in an initialization period of at least one sub-field of a plurality of sub-fields.Type: GrantFiled: October 9, 2002Date of Patent: October 18, 2005Assignee: LG Electronics Inc.Inventors: Eun Cheol Lee, Eung Kwan Lee, Jae Hwa Ryu, Chung Hoo Park, Dong Hyun Kim, Sung Hyun Lee
-
Publication number: 20040169621Abstract: A plasma display panel and a driving method thereof that is capable of improving a discharge efficiency as well as preventing a crosstalk. In the panel, an address electrode is included in each discharge cell making a unit pixel of the plasma display panel. A plurality of second sustain electrodes are positioned at each periphery of the discharge cell in a direction crossing the address electrode to receive a second sustaining pulse. At least one of first sustain electrode is positioned at the center of the discharge cell in a direction crossing the address electrode to receive a first sustaining pulse applied alternately with respect to the second sustaining pulse.Type: ApplicationFiled: June 13, 2001Publication date: September 2, 2004Applicant: LG Electronics, Inc.Inventors: Eun Cheol Lee, Young Kyo Shin
-
Publication number: 20040113554Abstract: A plasma display panel having higher light-emitting luminance and efficiency of a discharge cell includes: a plurality of first barriers successively formed on a substrate at predetermined intervals; a plurality of first sustain electrodes formed at a width more than 40% of a pixel pitch, which is an overall distance of four of the barriers, to be orthogonal to the first barriers; a plurality of second sustain electrodes spaced apart from the first sustain electrodes at a distance less than 20% of the pixel pitch and mated with the first sustain electrodes one by one; a dielectric layer formed at a thickness of 25 &mgr;m or more to cover the first and second sustain electrodes; and a plurality of pads formed on some of the dielectric layer corresponding to the first sustain electrodes and the second sustain electrodes in each discharge cell.Type: ApplicationFiled: November 25, 2003Publication date: June 17, 2004Inventors: Jae Sung Kim, Chung Huan Jeon, Eun Cheol Lee, Young Joon Ahn, Seok Dong Kang, Sung Yong Ahn
-
Patent number: 6720736Abstract: There is disclosed a plasma display panel that is capable of improving its discharge efficiency and brightness. A plasma display panel according to the present invention includes an upper electrode group formed on an upper substrate, including a scanning electrode to which a scanning voltage is supplied, barrier ribs formed on a lower substrate facing the upper substrate with a discharge space therebetween for dividing the discharge space; and an address electrode formed on the lower substrate to be located under the barrier ribs, and to which a data voltage is supplied.Type: GrantFiled: December 21, 2001Date of Patent: April 13, 2004Assignee: LG Electronics Inc.Inventors: Eun Cheol Lee, Jae Sung Kim
-
Patent number: 6680573Abstract: A plasma display panel having higher light-emitting luminance and efficiency of a discharge cell includes: a plurality of first barriers successively formed on a substrate at predetermined intervals; a plurality of first sustain electrodes formed at a width more than 40% of a pixel pitch, which is an overall distance of four of the barriers, to be orthogonal to the first barriers; a plurality of second sustain electrodes spaced apart from the first sustain electrodes at a distance less than 20% of the pixel pitch and mated with the first sustain electrodes one by one; a dielectric layer formed at a thickness of 25 &mgr;m or more to cover the first and second sustain electrodes; and a plurality of pads formed on some of the dielectric layer corresponding to the first sustain electrodes and the second sustain electrodes in each discharge cell.Type: GrantFiled: July 25, 2000Date of Patent: January 20, 2004Assignee: LG Electronics Inc.Inventors: Jae Sung Kim, Chung Huan Jeon, Eun Cheol Lee, Young Joon Ahn, Seok Dong Kang, Sung Yong Ahn
-
Patent number: 6603265Abstract: A plasma display panel that is capable of improving the discharge and light-emission efficiencies and the brightness. In the panel, a sustaining electrode pair is formed on an upper substrate in such a manner to be positioned at the edges of a discharge cell. A trigger electrode pair is positioned between the sustaining electrode pair to cause a trigger discharge for deriving a sustaining discharge. Dielectric layers are formed on the sustaining electrode pair and the trigger electrode pair to have a different thickness.Type: GrantFiled: January 24, 2001Date of Patent: August 5, 2003Assignee: LG Electronics Inc.Inventors: Sung Yong Ahn, Eun Cheol Lee, Young Chan Park
-
Publication number: 20030122738Abstract: It is disclosed that there are a method and an apparatus for driving a plasma display panel that is adaptive for realizing a high resolution as well as improving a brightness.Type: ApplicationFiled: December 26, 2002Publication date: July 3, 2003Applicant: LG Electronics Inc.Inventor: Eun Cheol Lee
-
Publication number: 20030122740Abstract: It is disclosed that there are a method and an apparatus of driving a plasma display panel that are adaptive for reducing an initialization period.Type: ApplicationFiled: December 27, 2002Publication date: July 3, 2003Applicant: LG Electronics Inc.Inventors: Eun Cheol Lee, Seong Ho Kang
-
Publication number: 20030117384Abstract: A plasma display panel driving method that is adaptive for improving contrast. In the method, at least one of the first and second electrodes keeps a floating state in an initialization period of at least one sub-field of a plurality of sub-fields.Type: ApplicationFiled: October 9, 2002Publication date: June 26, 2003Inventors: Eun Cheol Lee, Eung Kwan Lee, Jae Hwa Ryu, Chung Hoo Park, Dong Hyun Kim, Sung Hyun Lee