Patents by Inventor Deuk Su Lee
Deuk Su 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).
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Patent number: 7894010Abstract: The present invention relates to a liquid crystal display panel and a method for fabricating the same which can improve aperture and prevent a brightness deviation between lots. The liquid crystal display panel includes a thin film transistor formed on a lower substrate and connected to a gate line and a data line, a pixel electrode connected to a drain electrode of the thin film transistor, a common electrode forming a horizontal electric field with the pixel electrode, a connection electrode overlapped with and connected to the data line, and a black matrix on an upper substrate opposite to the lower substrate for forming a vertical electric field with the connection electrode.Type: GrantFiled: October 29, 2008Date of Patent: February 22, 2011Assignee: LG Display Co., Ltd.Inventors: Sang Hee Yu, Joon Dong Lee, Deuk Su Lee
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Patent number: 7834836Abstract: A flat panel display device includes a display panel, a memory storing a compensation value that corresponds to a panel defect location, the panel defect location being where any one of a brightness and a color difference exists compared to other part of the display panel, a compensating unit to adjust image data to be displayed in the panel defect location using the compensation value, and a driver to apply the adjusted image data from the compensating unit to the display panel.Type: GrantFiled: June 30, 2006Date of Patent: November 16, 2010Assignee: LG Display Co., Ltd.Inventors: In Jae Chung, Chul Sang Jang, Sung Hak Jo, Deuk Su Lee, Jong Hoon Kim, Jong Hee Hwang
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Publication number: 20100164883Abstract: A touch panel display device and a driving method thereof are disclosed. The touch panel display device and the driving method thereof sense illumination of external light using a photo-sensor formed on a touch panel, and control a PWM duty of a light source suited to each mode when the sensed illumination of external light corresponds to illumination in a gray zone to be a difference between the illumination of light created by the light source and that of external light, thereby improving touch recognition capability in a gray zone.Type: ApplicationFiled: June 16, 2009Publication date: July 1, 2010Applicant: LG DISPLAY CO., LTD.Inventors: In Ho AHN, Min Ho SOHN, Deuk Su LEE, Kyo Hyuck CHOO
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Publication number: 20100066650Abstract: A liquid crystal display device in which a touch panel is embedded in a liquid crystal panel, which reduces the number of processes and eases assembly. The liquid crystal display device includes first and second substrates opposite each other, a thin film transistor array formed on the first substrate, a touch sensing part formed on the second substrate including a plurality of transparent X electrodes, a plurality of transparent Y electrodes orthogonally intersecting each other and a first transparent insulating film between the X electrodes and the Y electrodes, a color filter array formed on the touch sensing part, and a liquid crystal layer formed between the thin film transistor array and the color filter array.Type: ApplicationFiled: November 17, 2008Publication date: March 18, 2010Inventors: Deuk Su Lee, Hye Jin Lee, Hyung Seok Park
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Publication number: 20100066702Abstract: A liquid crystal display device includes: a liquid crystal panel including first and second substrates facing each other and a liquid crystal layer between the first and second substrates, each of the first and second substrates defining a central display region and a peripheral non-display region; a cover glass integrated touch sensor on the liquid crystal panel, the touch sensor including a plurality of transparent first electrodes and second electrodes formed on a surface of the cover glass facing the liquid crystal panel, wherein the first electrodes and second electrodes cross each other; and a touch signal applicator at a side of the cover glass away from the display region of the liquid crystal panel.Type: ApplicationFiled: November 20, 2008Publication date: March 18, 2010Inventors: Deuk Su Lee, In Hyuk Song, Hyung Seok Park
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Patent number: 7674572Abstract: An exposure method for an LCD is provided. In the method, a sub-pixel region of an array substrate is divided into a first exposure region and a second exposure region, and the first exposure region and the second exposure region are sequentially exposed.Type: GrantFiled: June 29, 2005Date of Patent: March 9, 2010Assignee: LG. Display Co., Ltd.Inventors: Kwang Hoon Shin, Hyun Suk Jin, Ho Jin Ryu, Won Seok Kang, Deuk Su Lee
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Patent number: 7643114Abstract: A transflective liquid crystal display device includes an upper array substrate that has a gate line, a data line crossing the gate line while being insulated, an organic passivation film pattern overlapped with the data line, and a pixel electrode formed to overlap the data line with the organic passivation film pattern therebetween. A lower array substrate faces the upper array substrate with a liquid crystal layer therebetween and that has a dispersion film which disperses an external light, a reflection pattern which is formed on the dispersion film and in a reflection area, a color filter layer formed on the reflection pattern and the dispersion film, and a common electrode which covers the color filter layer. A backlight unit irradiates light to the lower array substrate.Type: GrantFiled: December 12, 2006Date of Patent: January 5, 2010Assignee: LG. Display Co., Ltd.Inventors: Sun Hwa Lee, Deuk Su Lee, Kyo Seop Choo
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Publication number: 20090295692Abstract: A liquid crystal display device having optical sensors, for sensing a touch, embedded in a liquid crystal panel to improve touch sensitivity is disclosed. The liquid crystal display device includes pixel regions spaced from each other on a first substrate, gate lines formed to separate the pixel regions in a first direction, driving voltage lines parallel to the gate lines, data lines formed between the pixel regions in a second direction intersecting the first direction, storage lines parallel to the driving voltage lines, read-out lines separated from neighboring data lines by one pixel region in the second direction, display transistors formed at intersections of the gate and data lines, pixel electrodes formed in the pixel regions, output switching transistors formed between the gate and read-out lines, capacitors formed between the output switching transistors and storage lines, and photo sensing transistors formed on the output switching transistors and storage lines.Type: ApplicationFiled: October 23, 2008Publication date: December 3, 2009Inventors: Kyung Eon Lee, Sang Hee Yu, Jae Sung Yu, Deuk Su Lee, Bu Yeol Lee
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Publication number: 20090109363Abstract: The present invention relates to a liquid crystal display panel and a method for fabricating the same which can improve aperture and prevent a brightness deviation between lots. The liquid crystal display panel includes a thin film transistor formed on a lower substrate and connected to a gate line and a data line, a pixel electrode connected to a drain electrode of the thin film transistor, a common electrode forming a horizontal electric field with the pixel electrode, a connection electrode overlapped with and connected to the data line, and a black matrix on an upper substrate opposite to the lower substrate for forming a vertical electric field with the connection electrode.Type: ApplicationFiled: October 29, 2008Publication date: April 30, 2009Inventors: Sang Hee Yu, Joon Dong Lee, Deuk Su Lee
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Patent number: 7465073Abstract: A backlight unit of an LCD device is provided. The backlight unit includes a light emitting unit, a light guide plate, a reflection plate and a light scattering unit. The light emitting unit has a passive light emission lamp that generates green light and a self-light emission lamp that generates red and blue light. The light guide plate is disposed between the passive light emission lamp and the self-light emission lamp. The light guide plate mixes the red and blue light emitted from the self-light emission type lamp and guides the mixed light to an upper side thereof. The reflection plate is disposed below the self-light emission lamp. In addition, the light scattering unit is disposed above the passive light emission type lamp.Type: GrantFiled: December 21, 2005Date of Patent: December 16, 2008Assignee: LG Display Co., Ltd.Inventors: Sun-Hwa Lee, Deuk-Su Lee
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Patent number: 7423620Abstract: The screen of a liquid crystal display is first divided into a compensation portion, a compensation transition portion and a non-compensation portion in a sequence arranged along the scanning line. Then storage capacitor areas of the pixels in the non-compensation portion are made equal, whereas the difference between the storage capacitor area of the pixel in the compensation portion and that in the non-compensation portion is set to one constant basic compensation area. Afterward, the average of the storage capacitor areas of the pixels on each data line in the compensation transition portion progressively varies along the scanning line, where the average is greater than or equal to any of the storage capacitor areas of the pixels in the non-compensation portion. The direction of the scanning line is designated as either the direction in which scanning signals are transmitted or the direction opposite thereto.Type: GrantFiled: October 13, 2004Date of Patent: September 9, 2008Assignee: Hannstar Display CorporationInventors: Tean-Sen Jen, Ming-Tien Lin, Deuk-Su Lee, Ta-Wei Tseng
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Publication number: 20080198298Abstract: Provided are a backlight unit and a display device having the same. The backlight unit includes a case having an opening, at least one lamp assembly disposed on a side surface of the case and including a light source, an optical transreflective unit on the case, the optical transreflective unit transmitting a portion of first light passing through the opening and reflecting a portion of second light generated from the light source, and an optical sheet including a first diffusion unit on the optical transreflective unit.Type: ApplicationFiled: December 26, 2007Publication date: August 21, 2008Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Ho Young Jeong, Deuk Su Lee, Jun Hyeok Yu, Jae Jung Han, Mi Young Do, Tae Han Kim
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Publication number: 20080068324Abstract: This invention relates to a flat panel display device that is adaptive for optimizing data, which are to be displayed in a panel defect area, in used of a compensation value of a compensation circuit as well as compensating defect pixels by a repair process, and a method of controlling a picture quality thereof. A flat panel display device according to an embodiment of the present invention includes a display panel; a memory which stores a first compensation data, a second compensation data and a third compensation data; a first compensation part; a second compensation part; a third compensation part; and a driver for driving the display panel in use of the data modulated by the first to third compensation parts.Type: ApplicationFiled: June 28, 2007Publication date: March 20, 2008Applicant: LG.PHILIPS LCD CO., LTD.Inventors: In Jae Chung, Deuk Su Lee, Jong Hee Whang
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Publication number: 20080001869Abstract: A flat panel display device includes a display panel having at least one link pixel which has a non-defect area and a panel defect area and where adjacent pixels are linked to each other; a memory which stores a first compensation data for compensating the data which are to be displayed in the panel defect area, a second compensation data for compensating the data of a bordering part between the panel defect area and the non-defect area, and a third compensation data for compensating the data which are to be displayed in the link pixel. The first compensation data is adjusted through at spatial dispersion or temporal dispersion; the data that are to be displayed in a fixed area inclusive of the boundary are adjusted by dispersing the second compensation data to the fixed area inclusive of the boundary; the data that are to be displayed in the link pixel are adjusted to the third compensation data.Type: ApplicationFiled: December 11, 2006Publication date: January 3, 2008Inventors: In-Jae Chung, Deuk-Su Lee, Jong Hee Hwang
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Patent number: 7256555Abstract: A method of driving a backlight unit is provided. The backlight includes a plurality of lamps sequentially turned on/off. Each of the plurality of lamps is periodically turned on for a predetermined period. The method includes applying a first lamp current to one of the plurality of lamps for a first time period within the predetermined period so that the one of the plurality of lamps emits light with a first brightness, and applying a second lamp current to the one of the plurality of lamps for a second time period within the predetermined period so that the one of the plurality of lamps emits light with a second brightness.Type: GrantFiled: June 29, 2005Date of Patent: August 14, 2007Assignee: LG. Philips LCD Co., Ltd.Inventors: Hyun-Suk Jin, In-Jue Kim, Deuk-Su Lee
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Publication number: 20070153205Abstract: A liquid crystal display device includes first and second substrates facing and spaced apart from each other; a gate line on an inner surface of the first substrate; a data line crossing the gate line to define a plurality of first sub-pixel regions for displaying color, and a second sub-pixel region for adjusting a viewing angle; a thin film transistor connected to the data line and the gate line; a plurality of first pixel electrodes in each of the plurality of first sub-pixel regions; a plurality of first common electrodes alternating with the plurality of first pixel electrodes in each of the plurality of first sub-pixel regions; a second pixel electrode in the second sub-pixel region; a second common electrode in the second sub-pixel region, the second common electrode facing the second pixel electrode; and a liquid crystal layer between the first and second substrates, wherein a first common voltage is applied to the plurality of first common electrodes, and a second common voltage different from the fiType: ApplicationFiled: December 28, 2006Publication date: July 5, 2007Applicant: LG.PHILIPS LCD CO., LTD.Inventors: Hyun-Suk Jin, Joon-Kyu Park, Hyung-Seok Jang, Deuk-Su Lee
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Publication number: 20070153173Abstract: A transflective liquid crystal display device includes an upper array substrate that has a gate line, a data line crossing the gate line while being insulated, an organic passivation film pattern overlapped with the data line, and a pixel electrode formed to overlap the data line with the organic passivation film pattern therebetween. A lower array substrate faces the upper array substrate with a liquid crystal layer therebetween and that has a dispersion film which disperses an external light, a reflection pattern which is formed on the dispersion film and in a reflection area, a color filter layer formed on the reflection pattern and the dispersion film, and a common electrode which covers the color filter layer. A backlight unit irradiates light to the lower array substrate.Type: ApplicationFiled: December 12, 2006Publication date: July 5, 2007Inventors: Sun Hwa Lee, Deuk Su Lee, Kyo Seop Choo
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Publication number: 20070121047Abstract: An in-plane switching mode liquid crystal display device includes a first substrate and a second substrate, gate lines and data lines intersecting each other on the first substrate and defining red, green, blue sub-pixels, and viewing angle controlling sub-pixels, thin film transistors at the intersections of the gate lines and the data lines, first pixel electrodes and first common electrodes spaced apart from each other and alternately disposed at the red, green, and blue sub-pixels, second pixel electrodes at the viewing angle controlling sub-pixels, second common electrodes on the second substrate and at positions corresponding to the second pixel electrodes, and a liquid crystal layer between the first substrate and the second substrate.Type: ApplicationFiled: March 27, 2006Publication date: May 31, 2007Applicant: LG.PHILIPS LCD CO., LTD.Inventors: In Jae Chung, Hyun Suk Jin, Hyung Seok Jang, Deuk Su Lee
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Patent number: 7212256Abstract: A liquid crystal display device has a pixel electrode layer formed between a first data bus line and a second bus line. A first space between the first data bus line and the periphery of the pixel electrode layer is different from a second space between the second data bus line and the periphery of the pixel electrode layer.Type: GrantFiled: July 17, 2003Date of Patent: May 1, 2007Assignee: Hannstar Display Corp.Inventors: Deuk-Su Lee, Jeremy Park, Ming-Tien Lin
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Publication number: 20070002579Abstract: A backlight unit of an LCD device is provided. The backlight unit includes a light emitting unit, a light guide plate, a reflection plate and a light scattering unit. The light emitting unit has a passive light emission lamp that generates green light and a self-light emission lamp that generates red and blue light. The light guide plate is disposed between the passive light emission lamp and the self-light emission lamp. The light guide plate mixes the red and blue light emitted from the self-light emission type lamp and guides the mixed light to an upper side thereof. The reflection plate is disposed below the self-light emission lamp. In addition, the light scattering unit is disposed above the passive light emission type lamp.Type: ApplicationFiled: December 21, 2005Publication date: January 4, 2007Inventors: Sun-Hwa Lee, Deuk-Su Lee