Patents by Inventor Back-Won Lee
Back-Won 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: 7532025Abstract: In a mother substrate for a lower substrate, a substrate for a display panel and a method of manufacturing a display panel, the substrate for the display panel includes a lower substrate and an upper substrate facing the lower substrate. The lower substrate includes an inspection line that receives a first inspection signal externally provided, a gate driving part that outputs a second inspection signal in response to the first inspection signal from the inspection line, and a pixel part driven in response to the second inspection signal. The inspection line is disposed on a grinding area. Thus, the display panel may have an enhanced productivity and an improved yield, on which the gate driving part is formed.Type: GrantFiled: November 3, 2006Date of Patent: May 12, 2009Assignee: Samsung Electronics Co., Ltd.Inventor: Back-Won Lee
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Publication number: 20090109162Abstract: An amorphous-silicon thin film transistor and a shift resister shift resister having the amorphous-silicon TFT include a first conductive region, a second conductive region and a third conductive region. The first conductive region is formed on a first plane spaced apart from a substrate by a first distance. The second conductive region is formed on a second plane spaced apart from the substrate by a second distance. The second conductive region includes a body conductive region and two hand conductive regions elongated from both ends of the body conductive region to form an U-shape. The third conductive region is formed on the second plane. The third conductive region includes an elongated portion. The elongated portion is disposed between the two hand conductive regions of the second conductive region. The amorphous-silicon TFT and the shift resister having the amorphous TFT reduce a parasitic capacitance between the gate electrode and drain electrode.Type: ApplicationFiled: November 20, 2008Publication date: April 30, 2009Inventors: Seung-Hwan Moon, Back-Won Lee
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Publication number: 20080284698Abstract: A driver circuit drives display device and LCD device has a driver circuit that includes driving stages and dummy stage. The driving stage includes output and control terminals. The output terminal of the present stage is connected to the control terminal of the previous state to be cascade-connected each other. The driving stage outputs driving signal for controlling the switching device arranged on the display device through the output terminal. The dummy stage includes dummy output terminal and dummy control terminal. The dummy output terminal is connected to the control terminal of the last driving stage to output dummy output signal for turning on or off the last driving stage. The dummy control terminal is connected to the dummy output terminal to be turned on or off by the dummy output signal. The delay of signals is reduced, thereby enhancing display quality.Type: ApplicationFiled: June 25, 2008Publication date: November 20, 2008Inventors: Back-Won LEE, Seung-Hwan MOON
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Patent number: 7405716Abstract: A driver circuit drives display device and LCD device has a driver circuit that includes driving stages and dummy stage. The driving stage includes output and control terminals. The output terminal of the present stage is connected to the control terminal of the previous state to be cascade-connected each other. The driving stage outputs driving signal for controlling the switching device arranged on the display device through the output terminal. The dummy stage includes dummy output terminal and dummy control terminal. The dummy output terminal is connected to the control terminal of the last driving stage to output dummy output signal for turning on or off the last driving stage. The dummy control terminal is connected to the dummy output terminal to be turned on or off by the dummy output signal. The delay of signals is reduced, thereby enhancing display quality.Type: GrantFiled: March 2, 2006Date of Patent: July 29, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Back-Won Lee, Seung-Hwan Moon
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Publication number: 20080074601Abstract: A liquid crystal display including a plurality of pixels arranged in a matrix and including first and second pixels, first and second gate lines opposing each other, and first and second data lines intersecting the gate lines. Each of the first and second pixels includes a plurality of pixel electrodes each of which includes first and second sub-pixel electrodes, a first switching element disposed on the right side of the first data line, and a second switching element disposed on the left side of the second data line. The first switching element is connected to the first sub-pixel electrode while the second switching element is connected to the second sub-pixel electrode in the first pixel, and the first switching element is connected to the second sub-pixel electrode while the second switching element is connected to the first sub-pixel electrode in the second pixel.Type: ApplicationFiled: September 26, 2007Publication date: March 27, 2008Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Back-Won LEE, Sahng-Ik JUN, Yoon-Jang KIM
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Publication number: 20080036933Abstract: Provided is a liquid crystal display (LCD) with enhanced display qualities. The LCD includes a first insulating substrate; a gate line disposed on the first insulating substrate and extending in a first direction; first and second data lines insulated from and crossing the gate line, separated from each other, and extending in a second direction; first and second thin film transistors (TFTs) connected to the gate line and the first and second data lines, respectively; first and second subpixel electrodes connected to the first and second TFTs, respectively; and first and second drain electrode connection portions connecting the first and second TFTs to the first and second subpixel electrodes, respectively. The first and second drain electrode connection portions are electrically insulated from each other and together form a substantially rectangular band.Type: ApplicationFiled: August 6, 2007Publication date: February 14, 2008Applicant: SAMSUNG ELECTRONICS, CO., LTD.Inventors: Hye-Seok NA, Sung-Jae MOON, Back-Won LEE, Seoung-Young LEE
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Publication number: 20080030640Abstract: A liquid crystal display (LCD) capable of preventing light leakage includes first and second gate lines which extend in a horizontal direction, a data line which is insulated from the first and second gate lines and crosses the first and second gate lines, first and second thin film transistors (TFTs) which are respectively connected to the first and second gate lines and are connected to the data line, and a pixel electrode which extends in zigzag fashion at an inclination to the first and second gate lines and is divided into a first area and a second area in a direction in which the pixel electrode extends.Type: ApplicationFiled: August 3, 2007Publication date: February 7, 2008Inventors: Seung-hyun Hur, Back-won Lee, Chae-woo Chung, Sahng-ik Jun, Kweon-sam Hong, Sang-gun Choi, Yong-woo Lee, Yong-jo Kim, Hyun-duck Son
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Patent number: 7317779Abstract: A shift register has multiple stages each of which includes a pull-up part to generate a current gate line driving signal having a first state in response to a first control signal and a clock signal, a pull-down part to generate the current gate line driving signal having a second state in response to a second control signal, a pull-up driver to generate the first control signal to control the pull-up part in response to a previous gate line driving signal provided from a previous stage, a following gate line driving signal provided from a following stage, and an input voltage signal externally provided, and a pull-down driver to generate the second control signal to control the pull-down part in response to a third control signal provided from the pull-up driver and the input voltage signal, in which the second control signal swings between first and second voltage levels in association with the input voltage signal that swings between predetermined voltage levels.Type: GrantFiled: February 4, 2004Date of Patent: January 8, 2008Assignee: Samsung Electronics Co., Ltd.Inventors: Seung-Hwan Moon, Nam-Soo Kang, Kyung-Eun Lee, Back-Won Lee, Ji-Hoon Kim
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Publication number: 20070177438Abstract: A shift register has multiple stages each of which includes a pull-up part to generate a current gate line driving signal having a first state in response to a first control signal and a clock signal, a pull-down part to generate the current gate line driving signal having a second state in response to a second control signal, a pull-up driver to generate the first control signal to control the pull-up part in response to a previous gate line driving signal provided from a previous stage, a following gate line driving signal provided from a following stage, and an input voltage signal externally provided, and a pull-down driver to generate the second control signal to control the pull-down part in response to a third control signal provided from the pull-up driver and the input voltage signal, in which the second control signal swings between first and second voltage levels in association with the input voltage signal that swings between predetermined voltage levels.Type: ApplicationFiled: April 9, 2007Publication date: August 2, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.,Inventors: Seung-Hwan MOON, Nam-Soo KANG, Kyung-Eun LEE, Back-Won LEE, Ji-Hoon KIM
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Publication number: 20070132684Abstract: A liquid crystal display having specific dispositions of pixels of a liquid crystal display so as to prevent the coupling defect and the stripe defect in high speed driving. The liquid crystal display includes a plurality of pixels arranged in a matrix shape, a switching element connected to each pixel, data lines and gate lines connected to the switching elements, and a data driver generating data voltages and applying the data voltages to the data lines. The data lines are disposed at both sides of the pixels in pairs, and data voltages of the same magnitude with different polarities are applied to the pairs of data lines. In this manner, preventing the coupling defect and the stripe defect, high speed driving can be performed.Type: ApplicationFiled: November 16, 2006Publication date: June 14, 2007Inventors: Seung-Soo BAEK, Dong-Gyu Kim, Back-Won Lee
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Publication number: 20070126944Abstract: A liquid crystal display includes a substrate, a plurality of pixel electrodes formed on the substrate wherein each of the pixel electrodes includes first and second sub-pixel electrodes, and a plurality of first data lines formed on the substrate, wherein a first data line of the plurality of first data lines does not overlap a first sub-pixel electrode and partially overlaps a second sub-pixel electrode of a pixel electrode of the plurality of pixel electrodes.Type: ApplicationFiled: December 1, 2006Publication date: June 7, 2007Inventors: Dong-Gyu Kim, Back-Won Lee, Seung-Soo Baek
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Publication number: 20070109238Abstract: The liquid crystal display includes a substrate, and pixel electrodes are formed on the substrate, each of which has first and second subpixel electrodes. Each of the first and second subpixel electrodes has at least two parallelogrammic electrode pieces, each of which has lengthwise edges and oblique edges adjacent to the lengthwise edges.Type: ApplicationFiled: November 2, 2006Publication date: May 17, 2007Applicant: SAMSUNG ELECTRONICS CO., LTD.,Inventors: Back-Won LEE, Seong-Young LEE
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Publication number: 20070057689Abstract: In a mother substrate for a lower substrate, a substrate for a display panel and a method of manufacturing a display panel, the substrate for the display panel includes a lower substrate and an upper substrate facing the lower substrate. The lower substrate includes an inspection line that receives a first inspection signal externally provided, a gate driving part that outputs a second inspection signal in response to the first inspection signal from the inspection line, and a pixel part driven in response to the second inspection signal. The inspection line is disposed on a grinding area. Thus, the display panel may have an enhanced productivity and an improved yield, on which the gate driving part is formed.Type: ApplicationFiled: November 3, 2006Publication date: March 15, 2007Applicant: SAMSUNG ELECTRONICS CO., LTDInventor: Back-Won LEE
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Publication number: 20060285049Abstract: A thin film transistor panel for a liquid crystal display includes a substrate, a plurality of data lines formed over the substrate and extending in a first direction, and a plurality of gate lines formed over the substrate and extending in a second direction. The plurality of gate lines cross the plurality of data lines to form a plurality of pixel areas, each of the plurality of pixel areas having a multi-bent band shape. Each of a plurality of pixel electrodes are formed in a corresponding pixel area.Type: ApplicationFiled: August 23, 2006Publication date: December 21, 2006Inventors: Dong-Gyu Kim, Back-Won Lee
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Publication number: 20060279682Abstract: A thin film transistor panel for a liquid crystal display includes a substrate, a plurality of data lines formed over the substrate and extending in a first direction, and a plurality of gate lines formed over the substrate and extending in a second direction. The plurality of gate lines cross the plurality of data lines to form a plurality of pixel areas, each of the plurality of pixel areas having a multi-bent band shape. Each of a plurality of pixel electrodes are formed in a corresponding pixel area.Type: ApplicationFiled: August 23, 2006Publication date: December 14, 2006Inventors: Dong-Gyu Kim, Back-Won Lee
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Patent number: 7145357Abstract: In a mother substrate for a lower substrate, a substrate for a display panel and a method of manufacturing a display panel, the substrate for the display panel includes a lower substrate and an upper substrate facing the lower substrate. The lower substrate includes an inspection line that receives a first inspection signal externally provided, a gate driving part that outputs a second inspection signal in response to the first inspection signal from the inspection line, and a pixel part driven in response to the second inspection signal. The inspection line is disposed on a grinding area. Thus, the display panel may have an enhanced productivity and an improved yield, on which the gate driving part is formed.Type: GrantFiled: February 11, 2004Date of Patent: December 5, 2006Assignee: Samsung Electronics Co., Ltd.Inventor: Back-Won Lee
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Patent number: 7113242Abstract: A thin film transistor panel for a liquid crystal display includes a substrate, a plurality of data lines formed over the substrate and extending in a first direction, and a plurality of gate lines formed over the substrate and extending in a second direction. The plurality of gate lines cross the plurality of data lines to form a plurality of pixel areas, each of the plurality of pixel areas having a multi-bent band shape. Each of a plurality of pixel electrodes are formed in a corresponding pixel area.Type: GrantFiled: April 2, 2004Date of Patent: September 26, 2006Assignee: Samsung Electronics Co. Ltd.Inventors: Dong-Gyu Kim, Back-Won Lee
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Publication number: 20060161693Abstract: A driver circuit drives display device and LCD device has a driver circuit that includes driving stages and dummy stage. The driving stage includes output and control terminals. The output terminal of the present stage is connected to the control terminal of the previous state to be cascade-connected each other. The driving stage outputs driving signal for controlling the switching device arranged on the display device through the output terminal. The dummy stage includes dummy output terminal and dummy control terminal. The dummy output terminal is connected to the control terminal of the last driving stage to output dummy output signal for turning on or off the last driving stage. The dummy control terminal is connected to the dummy output terminal to be turned on or off by the dummy output signal. The delay of signals is reduced, thereby enhancing display quality.Type: ApplicationFiled: March 2, 2006Publication date: July 20, 2006Inventors: Back-Won Lee, Seung-Hwan Moon
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Patent number: 7023410Abstract: A driver circuit drives display device and LCD device has a driver circuit that includes driving stages and dummy stage. The driving stage includes output and control terminals. The output terminal of the present stage is connected to the control terminal of the previous state to be cascade-connected each other. The driving stage outputs driving signal for controlling the switching device arranged on the display device through the output terminal. The dummy stage includes dummy output terminal and dummy control terminal. The dummy output terminal is connected to the control terminal of the last driving stage to output dummy output signal for turning on or off the last driving stage. The dummy control terminal is connected to the dummy output terminal to be turned on or off by the dummy output signal. The delay of signals is reduced, thereby enhancing display quality.Type: GrantFiled: April 4, 2003Date of Patent: April 4, 2006Assignee: Samsung Electronics Co., Ltd.Inventors: Back-Won Lee, Seung-Hwan Moon
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Publication number: 20060061711Abstract: A display substrate comprises a base substrate divided into a display region and a peripheral region surrounding the display region, wherein an image is displayed in the display region, a pixel part formed in the display region of the base substrate, a first color filter layer formed on the base substrate including the pixel part, wherein the first color filter layer is formed in the display region, and a second color filter layer formed in the peripheral region of the base substrate.Type: ApplicationFiled: August 23, 2005Publication date: March 23, 2006Inventors: Back-Won Lee, Jeong-Il Kim, Hong-Woo Lee