Patents by Inventor Chul Sang Shin
Chul Sang Shin 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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Publication number: 20230197003Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.Type: ApplicationFiled: October 14, 2022Publication date: June 22, 2023Inventors: Jin Her, Hoon Jeong, Chul Sang Shin
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Patent number: 9323116Abstract: A pixel of an LCD device includes a gate line, a data line intersecting with the gate line, a gate insulation layer between the data line and the gate line, a thin film transistor formed at an intersection of the gate line and the data line, a planarization layer, a common electrode formed on the planarization layer, a pixel electrode formed over the common electrode, and an insulation layer between the common electrode and the pixel electrode. The common electrode is formed with groove extending along a region where the data line extends. Material of the common electrode is absent from the groove to reduce capacitance between the common electrode and the data line.Type: GrantFiled: July 14, 2014Date of Patent: April 26, 2016Assignee: LG Display Co., Ltd.Inventors: Jae Hyun You, Chul Sang Shin
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Publication number: 20150062522Abstract: A pixel of an LCD device includes a gate line, a data line intersecting with the gate line, a gate insulation layer between the data line and the gate line, a thin film transistor formed at an intersection of the gate line and the data line, a planarization layer, a common electrode formed on the planarization layer, a pixel electrode formed over the common electrode, and an insulation layer between the common electrode and the pixel electrode. The common electrode is formed with groove extending along a region where the data line extends. Material of the common electrode is absent from the groove to reduce capacitance between the common electrode and the data line.Type: ApplicationFiled: July 14, 2014Publication date: March 5, 2015Inventors: Jae Hyun YOU, Chul Sang SHIN
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Patent number: 7646461Abstract: A liquid crystal display device and a method for manufacturing the same are disclosed which are capable of preventing occurrence of contact errors between pads of gate or data lines and pad electrodes. The liquid crystal display device includes a signal line and a signal line pad arranged in one direction, an insulating film formed on the signal line and the signal line pad, the insulating film including at least one contact hole, through which a predetermined portion of the signal line pad is exposed, and a pad electrode formed on the insulating film, and electrically connected with the signal line pad via the at least one contact hole. The insulating film includes inner side walls defining the at least one contact hole, and at least one of the inner side walls has a slope gentler than a slope of the remaining inner side walls.Type: GrantFiled: May 24, 2005Date of Patent: January 12, 2010Assignee: LG. Display Co., Ltd.Inventors: Chul Sang Shin, Eun Hong Kim
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Patent number: 7616268Abstract: A liquid crystal display panel according to an embodiment of the present invention includes a first shorting bar inspecting a signal line in a non-display area of a first substrate; a second shorting bar inspecting the signal line in the non-display area of the inspected first substrate attached to a second substrate; a first shorting line connected to at least one of the signal lines and the first and second shorting bars; and a second shorting line connected the second shorting bar with the remaining signal line except the signal line connected to the first shorting line.Type: GrantFiled: October 27, 2005Date of Patent: November 10, 2009Assignee: LG Display Co., Ltd.Inventors: Dong Yeung Kwak, Chul Sang Shin
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Patent number: 7532268Abstract: An array substrate for a liquid crystal display device and manufacturing method thereof is disclosed in the present invention. The liquid crystal display having an array substrate includes a substrate, a gate line and a data line on the substrate, the gate line and the data line crossing each other and defining a pixel area, a thin film transistor electrically connected to the gate line and the data line, and including a gate electrode connected to the gate line, a source electrode over the gate electrode and connected to the data line, a drain electrode spaced apart from the source electrode, and a semiconductor layer having an active layer over the gate electrode and a first extended portion completely covered with the drain electrode at a boundary between the active electrode and the first extended portion, wherein the first extended portion is disposed over the gate electrode, and a pixel electrode in the pixel region and connected to the drain electrode.Type: GrantFiled: May 25, 2006Date of Patent: May 12, 2009Assignee: LG Display Co., Ltd.Inventors: Jin-Tae Kim, Chul-Sang Shin
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Patent number: 7403257Abstract: An LCD device includes a pixel part, formed on a substrate, where a plurality of gate lines and data lines are arranged perpendicular to each other and a plurality of pixels are formed. A terminal has active pads formed on a substrate which communicate a signal to respective ones of the gate lines and data lines of the pixel part. The terminal also has dummy pads formed adjacent to the active pads a transparent material is adjacent or over the dummy pads so as to check a pressed state of conductive balls. A drive IC having a terminal with pads electrically connected one-to-one to the pads of active pads formed on the substrate through the conductive balls, so s to supply a gate signal and/or a data signal to the respective gate line and/or data line.Type: GrantFiled: September 28, 2004Date of Patent: July 22, 2008Assignee: LG Display Co., Ltd.Inventors: Chul-Sang Shin, Deok-Nyoung Kim
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Patent number: 7245342Abstract: An array substrate for a liquid crystal display device includes a gate line on a substrate having a display region and a non-display region, wherein the non-display region is about a periphery of the display region and the gate line includes a gate pad disposed in the non-display region at one end of the gate line, a data line crossing the gate line, wherein the data line includes a data pad disposed in the non-display region at one end of the data line, a thin film transistor connected to the gate line and the data line, a passivation layer over the gate line and the data line, a pixel electrode on the passivation layer in the display region, a first conductive pattern on the passivation layer in the non-display region and an orientation film on the first conductive pattern.Type: GrantFiled: December 9, 2002Date of Patent: July 17, 2007Assignee: LG.Philips LCD Co., Ltd.Inventors: Chul-Sang Shin, Gyo-Won Chin
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Publication number: 20060223206Abstract: An array substrate for a liquid crystal display device and manufacturing method thereof is disclosed in the present invention. The liquid crystal display having an array substrate includes a substrate, a gate line and a data line on the substrate, the gate line and the data line crossing each other and defining a pixel area, a thin film transistor electrically connected to the gate line and the data line, and including a gate electrode connected to the gate line, a source electrode over the gate electrode and connected to the data line, a drain electrode spaced apart from the source electrode, and a semiconductor layer having an active layer over the gate electrode and a first extended portion completely covered with the drain electrode at a boundary between the active electrode and the first extended portion, wherein the first extended portion is disposed over the gate electrode, and a pixel electrode in the pixel region and connected to the drain electrode.Type: ApplicationFiled: May 25, 2006Publication date: October 5, 2006Inventors: Jin-Tae Kim, Chul-Sang Shin
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Patent number: 7084934Abstract: An array substrate for a liquid crystal display device includes a thin film transistor electrically connected to a gate line and a data line, and including a gate electrode connected to the gate line, a source electrode over the gate electrode and connected to the data line, a drain electrode spaced apart from the source electrode, and a semiconductor layer having an active layer over the gate electrode and a first extended portion completely covered with the drain electrode at a boundary between the active electrode and the first extended portion.Type: GrantFiled: June 26, 2003Date of Patent: August 1, 2006Assignee: LG.Philips LCD Co., Ltd.Inventors: Jin-Tae Kim, Chul-Sang Shin
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Patent number: 7023514Abstract: A liquid crystal display device includes a first substrate, a plurality of gate and data lines formed crossing each other on the first substrate to define a plurality of pixel areas, an insulating layer formed on the plurality of gate and data lines, a plurality of pixel electrodes formed within the plurality of pixel areas, a plurality of separators formed on the insulating layer between the plurality of pixel electrodes, and a second substrate facing the first substrate.Type: GrantFiled: November 13, 2002Date of Patent: April 4, 2006Assignee: LG. Philips LCD Co., Ltd.Inventors: Chul Sang Shin, Gyo Won Chin
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Publication number: 20050099565Abstract: An LCD device includes a pixel part, formed on a substrate, where a plurality of gate lines and data lines are arranged perpendicular to each other and a plurality of pixels are formed. A terminal has active pads formed on a substrate which communicate a signal to respective ones of the gate lines and data lines of the pixel part. The terminal also has dummy pads formed adjacent to the active pads a transparent material is adjacent or over the dummy pads so as to check a pressed state of conductive balls. A drive IC having a terminal with pads electrically connected one-to-one to the pads of active pads formed on the substrate through the conductive balls, so s to supply a gate signal and/or a data signal to the respective gate line and/or data line.Type: ApplicationFiled: September 28, 2004Publication date: May 12, 2005Inventors: Chul-Sang Shin, Deok-Nyoung Kim
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Publication number: 20040095519Abstract: An array substrate for a liquid crystal display device and manufacturing method thereof is disclosed in the present invention. The liquid crystal display having an array substrate includes a substrate, a gate line and a data line on the substrate, the gate line and the data line crossing each other and defining a pixel area, a thin film transistor electrically connected to the gate line and the data line, and including a gate electrode connected to the gate line, a source electrode over the gate electrode and connected to the data line, a drain electrode spaced apart from the source electrode, and a semiconductor layer having an active layer over the gate electrode and a first extended portion completely covered with the drain electrode at a boundary between the active electrode and the first extended portion, wherein the first extended portion is disposed over the gate electrode, and a pixel electrode in the pixel region and connected to the drain electrode.Type: ApplicationFiled: June 26, 2003Publication date: May 20, 2004Applicant: LG. Philips LCD Co., Ltd.Inventors: Jin-Tae Kim, Chul-Sang Shin
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Publication number: 20030122977Abstract: A liquid crystal display device includes a first substrate, a plurality of gate and data lines formed crossing each other on the first substrate to define a plurality of pixel areas, an insulating layer formed on the plurality of gate and data lines, a plurality of pixel electrodes formed within the plurality of pixel areas, a plurality of separators formed on the insulating layer between the plurality of pixel electrodes, and a second substrate facing the first substrate.Type: ApplicationFiled: November 13, 2002Publication date: July 3, 2003Applicant: LG.Philips LCD Co., Ltd.Inventors: Chul Sang Shin, Gyo Won Chin
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Publication number: 20030122982Abstract: An array substrate for a liquid crystal display device includes a gate line on a substrate having a display region and a non-display region, wherein the non-display region is about a periphery of the display region and the gate line includes a gate pad disposed in the non-display region at one end of the gate line, a data line crossing the gate line, wherein the data line includes a data pad disposed in the non-display region at one end of the data line, a thin film transistor connected to the gate line and the data line, a passivation layer over the gate line and the data line, a pixel electrode on the passivation layer in the display region, a first conductive pattern on the passivation layer in the non-display region and an orientation film on the first conductive pattern.Type: ApplicationFiled: December 9, 2002Publication date: July 3, 2003Applicant: LG.Philips LCD Co., Ltd.Inventors: Chul-Sang Shin, Gyo-Won Chin