Patents by Inventor Hae-Yeol Kim
Hae-Yeol Kim 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: 10586497Abstract: A gate driver includes a plurality of driving units each including a first sub driving unit and a second sub driving unit, wherein output terminals of the first and second sub driving units are connected to first and second sub gate lines, respectively, and first and second sub outputs that are the outputs of the first and second sub driving units are respectively transferred to gate terminals of a first switching transistor and a second switching transistor formed in a pixel area of a display area, and wherein drain and source terminals of the first switching transistor are respectively connected to drain and source terminals of the second switching transistors.Type: GrantFiled: December 26, 2012Date of Patent: March 10, 2020Assignee: LG DISPLAY CO., LTD.Inventors: Yong-Ho Jang, Binn Kim, Hae-Yeol Kim, Bu-Yeol Lee
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Publication number: 20130235004Abstract: A gate driver includes a plurality of driving units each including a first sub driving unit and a second sub driving unit, wherein output terminals of the first and second sub driving units are connected to first and second sub gate lines, respectively, and first and second sub outputs that are the outputs of the first and second sub driving units are respectively transferred to gate terminals of a first switching transistor and a second switching transistor formed in a pixel area of a display area, and wherein drain and source terminals of the first switching transistor are respectively connected to drain and source terminals of the second switching transistors.Type: ApplicationFiled: December 26, 2012Publication date: September 12, 2013Applicant: LG DISPLAY CO., LTD.Inventors: Yong-Ho Jang, Binn Kim, Hae-Yeol Kim, Bu-Yeol Lee
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Patent number: 8373812Abstract: The present invention relates a liquid crystal display device which can minimize resistance of a common line. The liquid crystal display device includes a plurality of data lines and a plurality of common lines arranged alternately, a plurality of gate lines arranged to cross the data lines and the common lines, a pixel electrode formed at every pixel region defined as a region is surrounded by the data line, the common line and the gate line, and at least one auxiliary electrode unit overlapped with a portion of each of the pixel electrodes adjacent to the common line, wherein the auxiliary electrode unit is connected to the common electrode line electrically.Type: GrantFiled: October 30, 2009Date of Patent: February 12, 2013Assignee: LG Display Co., Ltd.Inventors: Hae Yeol Kim, Tae Woong Moon
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Patent number: 8330696Abstract: A driving method of a liquid crystal display device includes steps of providing image data to a liquid crystal panel each frame, providing an image-data gate driving signal to the liquid crystal panel and inputting the image data to the liquid crystal panel, providing black data to the liquid crystal panel, providing a black-data gate driving signal to the liquid crystal panel and inputting the black data to the liquid crystal panel, and delaying the black-data gate driving signal when each frame starts.Type: GrantFiled: September 28, 2009Date of Patent: December 11, 2012Assignee: LG Display Co., Ltd.Inventors: Hyung-Nyuck Cho, Chang Il Ryoo, Hae-Yeol Kim
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Patent number: 8269698Abstract: An electro-luminescence display device includes an electro-luminescence panel having a plurality of pixels at pixel areas defined by intersections between data lines and gate lines, each of the pixels including: an electro-luminescence cell connected to receive a supply voltage, a driving thin film transistor controlling a current amount flowing through the electro-luminescence cell, and a bias switch connected to a gate terminal of the driving thin film transistor, the bias switch selectively applying an inverse voltage to the driving thin film transistor.Type: GrantFiled: October 9, 2009Date of Patent: September 18, 2012Assignee: LG Display Co., Ltd.Inventors: Han Sang Lee, Hae Yeol Kim
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Patent number: 8085367Abstract: A liquid crystal display device includes: a liquid crystal panel; a backlight assembly for irradiating light onto the liquid crystal panel; and a reflection layer between the liquid crystal panel and the backlight assembly for increasing an amount of light incident onto the liquid crystal panel.Type: GrantFiled: June 9, 2005Date of Patent: December 27, 2011Assignee: LG Display Co., Ltd.Inventors: Sung-Ki Kim, Yong-Jin Cho, Hae-Yeol Kim
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Patent number: 8068078Abstract: The present invention relates to an electro-luminescence display and a driving method thereof wherein a thin film transistor is prevented from the deterioration, to thereby improve a picture quality. An electro-luminescence (EL) display, including: a plurality of drive voltage supply lines; N compensation voltage supply lines; EL cells at each crossing of a plurality of data lines and a plurality of gate lines in a matrix, wherein the EL cells emit light in response to currents applied from the drive voltage supply lines; driving thin film transistors (TFT) connected between the EL cells and compensation voltage supply lines that control the current applied to the EL cells; and a bias switch, connected between the N?1th compensation voltage supply line and a control terminal of the driving TFT connected to the Nth compensation voltage supply line that applies a bias voltage to the driving TFT when a scan pulse is supplied to the N?1th gate line.Type: GrantFiled: April 16, 2004Date of Patent: November 29, 2011Assignee: LG Display Co., Ltd.Inventors: Han Sang Lee, Sung Ki Kim, Hae Yeol Kim, Juhn Suk Yoo
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Publication number: 20100245225Abstract: A driving method of a liquid crystal display device includes steps of providing image data to a liquid crystal panel each frame, providing an image-data gate driving signal to the liquid crystal panel and inputting the image data to the liquid crystal panel, providing black data to the liquid crystal panel, providing a black-data gate driving signal to the liquid crystal panel and inputting the black data to the liquid crystal panel, and delaying the black-data gate driving signal when each frame starts.Type: ApplicationFiled: September 28, 2009Publication date: September 30, 2010Inventors: Hyung-Nyuck CHO, Chang Il Ryoo, Hae-Yeol Kim
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Publication number: 20100156880Abstract: An electro-luminescence display device includes an electro-luminescence panel having a plurality of pixels at pixel areas defined by intersections between data lines and gate lines, each of the pixels including: an electro-luminescence cell connected to receive a supply voltage, a driving thin film transistor controlling a current amount flowing through the electro-luminescence cell, and a bias switch connected to a gate terminal of the driving thin film transistor, the bias switch selectively applying an inverse voltage to the driving thin film transistor.Type: ApplicationFiled: October 9, 2009Publication date: June 24, 2010Inventors: Han Sang LEE, Hae Yeol Kim
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Publication number: 20100123868Abstract: The present invention relates a liquid crystal display device which can minimize resistance of a common line. The liquid crystal display device includes a plurality of data lines and a plurality of common lines arranged alternately, a plurality of gate lines arranged to cross the data lines and the common lines, a pixel electrode formed at every pixel region defined as a region is surrounded by the data line, the common line and the gate line, and at least one auxiliary electrode unit overlapped with a portion of each of the pixel electrodes adjacent to the common line, wherein the auxiliary electrode unit is connected to the common electrode line electrically.Type: ApplicationFiled: October 30, 2009Publication date: May 20, 2010Inventors: Hae Yeol KIM, Tae Woong Moon
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Patent number: 7605543Abstract: An electro-luminescence display device includes an electro-luminescence panel having a plurality of pixels at pixel areas defined by intersections between data lines and gate lines, each of the pixels including: an electro-luminescence cell connected to receive a supply voltage, a driving thin film transistor controlling a current amount flowing through the electro-luminescence cell, and a bias switch connected to a gate terminal of the driving thin film transistor, the bias switch selectively applying an inverse voltage to the driving thin film transistor.Type: GrantFiled: December 29, 2004Date of Patent: October 20, 2009Assignee: LG Display Co., Ltd.Inventors: Han Sang Lee, Hae Yeol Kim
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Patent number: 7529333Abstract: A shift register includes first and second stages for sequentially outputting scan pulses to drive first and second gate lines. One of the first and second stages includes a pull-up switching device connected to an enabling node of the one of the first and second stages; a first pull-down switching device connected to a first disabling node of the one of the first and second stages; a second pull-down switching device connected to a second disabling node of the one of the first and second stages; and a node controller. The node controller of the first stage controls the logic state of each of the enabling node of the first stage, the first disabling node of the first stage and the first disabling node of the second stage. The node controller of the second stage controls the logic state of each of the enabling node of the second stage, the second disabling node of the second stage and the second disabling node of the first stage.Type: GrantFiled: October 26, 2006Date of Patent: May 5, 2009Assignee: LG Display Co., Ltd.Inventors: Binn Kim, Hae Yeol Kim, Hyung Nyuck Cho, Soo Young Yoon, Seung Chan Choi, Min Doo Chun, Yong Ho Jang
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Patent number: 7413966Abstract: A method of forming a polycrystalline silicon active layer for use in a thin film transistor is provided. The method includes forming a buffer layer over a substrate, forming an amorphous silicon layer over the buffer layer, applying a catalytic metal to a surface of the amorphous silicon layer, crystallizing the amorphous silicon layer having the catalytic metal thereon into a polycrystalline silicon layer, annealing the polycrystalline silicon layer in an N2 gas atmosphere to stabilize the polycrystalline silicon layer, etching a surface of the polycrystalline silicon layer using an etchant, and patterning the polycrystalline silicon layer to form an island-shaped active layer.Type: GrantFiled: December 6, 2002Date of Patent: August 19, 2008Assignee: LG Phillips LCD Co., LtdInventors: Binn Kim, Jong-Uk Bae, Hae-Yeol Kim
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Patent number: 7407841Abstract: The present invention relates to a liquid crystal display panel and a fabricating method thereof that is capable of enhancing crystallization efficiency of an active layer and simplifying the fabricating process. A fabricating method of a liquid crystal display panel includes forming a gate electrode on a substrate; forming a gate insulating film on the gate electrode formed thereon; forming an amorphous silicon film on the gate insulating film; forming an insulating pattern on the amorphous silicon film; crystallizing the amorphous silicon film into a polycrystalline silicon film using a derivative metal, the polycrystalline silicon film having source, drain and channel areas, wherein the insulating pattern overlaps the channel area of the polycrystalline silicon film; and forming source and drain electrodes on the polycrystalline silicon film, wherein the source and the drain electrodes contacting the source and drain areas of the polycrystalline silicon film, respectively.Type: GrantFiled: September 27, 2006Date of Patent: August 5, 2008Assignee: LG Display Co., Ltd.Inventors: Hyun Sik Seo, Hae Yeol Kim
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Publication number: 20080129676Abstract: A liquid crystal display device and a method of driving the same is disclosed that can decrease the number of data lines used therein, and can improve the picture quality. The liquid crystal display device includes a display area including a plurality of pixel cells formed in respective regions defined by a plurality of gate and data lines, the pixel cells along a data-line direction provided with at least three colors repetitively arranged by turns, and the pixel cells along a gate-line direction provided with the same color, wherein polarity of video signal is inverted every 2N pixel cells (āNā is an integer) along the data-line direction.Type: ApplicationFiled: November 21, 2007Publication date: June 5, 2008Inventors: Binn Kim, Hae Yeol Kim, Su Hwan Moon, Seung Chan Choi
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Patent number: 7358528Abstract: A method for fabricating a liquid crystal display includes providing a first substrate having a pixel part and a driving circuit part, forming a gate electrode in the pixel part of the first substrate, forming a first insulation film, a first amorphous silicon thin film and a second amorphous silicon thin film on the first substrate, forming a first conductive film on the first substrate, having the first insulation film, the first amorphous silicon thin film, and the second amorphous silicon thin film, selectively patterning the first conductive film, the second amorphous silicon thin film and the first amorphous silicon thin film to form an active pattern in each of the pixel part and the driving circuit part of the first substrate and source and drain electrodes, crystallizing the first amorphous silicon thin film constituting the active pattern of the driving circuit part, forming a second insulation film on the first substrate, forming a pixel electrode in the pixel part and a gate electrode in the driviType: GrantFiled: December 27, 2005Date of Patent: April 15, 2008Assignee: LG.Philips LCD Co., Ltd.Inventors: Sung Ki Kim, Yong Jin Cho, Hae Yeol Kim, Juhn Suk Yoo
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Patent number: 7132801Abstract: A dual panel-type active matrix organic electroluminescent device includes: first and second substrates spaced apart from each other; a driving thin film transistor on an inner surface of the first substrate; a connection electrode layer connected to the driving thin film transistor and formed of a first conductive material having a first hardness; a first electrode on an inner surface of the second substrate; an organic electroluminescent layer on the first electrode; and a second electrode on the organic electroluminescent layer, the second electrode connected to the connection electrode layer and formed of a second conductive material having a second hardness, wherein the first hardness is different from the second hardness.Type: GrantFiled: December 15, 2004Date of Patent: November 7, 2006Assignee: LG.Philips Lcd Co., Ltd.Inventors: Jae-Yong Park, Sung-Ki Kim, Hae-Yeol Kim
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Patent number: 7130002Abstract: The present invention relates to a liquid crystal display panel and a fabricating method thereof that is capable of enhancing crystallization efficiency of an active layer and simplifying the fabricating process. A fabricating method of a liquid crystal display panel includes forming a gate electrode on a substrate; forming a gate insulating film on the gate electrode formed thereon; forming an amorphous silicon film on the gate insulating film; forming an insulating pattern on the amorphous silicon film; crystallizing the amorphous silicon film into a polycrystalline silicon film using a derivative metal, the polycrystalline silicon film having source, drain and channel areas, wherein the insulating pattern overlaps the channel area of the polycrystalline silicon film; and forming source and drain electrodes on the polycrystalline silicon film, wherein the source and the drain electrodes contacting the source and drain areas of the polycrystalline silicon film, respectively.Type: GrantFiled: June 25, 2004Date of Patent: October 31, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Hyun Sik Seo, Hae Yeol Kim
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Patent number: 7060544Abstract: A fabricating method of a thin film transistor includes forming an active layer of polycrystalline silicon, forming a first insulating layer on the active layer, forming a gate electrode on the first insulating layer over the active layer, doping side portions of the active layer with impurities, applying a small amount of metal to the side portions of the active layer and activating the side portions of the active layer such that the small amount of metal is adsorbed into the active layer.Type: GrantFiled: December 12, 2002Date of Patent: June 13, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Hae-Yeol Kim, Jong-Uk Bae, Binn Kim
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Publication number: 20060092347Abstract: A liquid crystal display device includes: a liquid crystal panel; a backlight assembly for irradiating light onto the liquid crystal panel; and a reflection layer between the liquid crystal panel and the backlight assembly for increasing an amount of light incident onto the liquid crystal panel.Type: ApplicationFiled: June 9, 2005Publication date: May 4, 2006Applicant: LG.PHILIPS LCD CO. LTD.Inventors: Sung-Ki Kim, Yong-Jin Cho, Hae-Yeol Kim