Patents by Inventor Ki-Chul Shin
Ki-Chul 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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Patent number: 9880421Abstract: A curved liquid crystal display is provided. The curved liquid crystal display includes: a first curved substrate; a second curved substrate; a liquid crystal layer including liquid crystal molecules having negative dielectric anisotropy, the liquid crystal layer being interposed between the first and second curved substrates; a first curved liquid crystal alignment layer interposed between the liquid crystal layer and the first curved substrate; and a second curved liquid crystal alignment layer interposed between the liquid crystal layer and the second curved substrate. The first curved liquid crystal alignment layer includes protrusions protruded toward the second curved liquid crystal alignment layer. The second curved liquid crystal alignment layer includes protrusions protruded toward the first curved liquid crystal alignment layer.Type: GrantFiled: September 23, 2015Date of Patent: January 30, 2018Assignee: Samsung Display Co., LtdInventors: Dong Han Song, Oh Jeong Kwon, Su Jin Kim, Jin Won Kim, Ki Chul Shin, Dong Chul Shin, Sung Jae Yun, Hyeok Jin Lee
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Patent number: 9869906Abstract: A liquid crystal display device includes pixels, each including a pixel electrode including first and second stem electrodes, which extend in a first direction and are spaced apart from each other, a third stem electrode, which extends in a second direction perpendicular to the first direction and intersects the first and second stem electrodes, a first edge electrode, which extends in the second direction and intersects first ends of the first and second stem electrodes, a second edge electrode, which extends in the second direction and intersects second ends of the first and second stem electrodes, and branch electrodes, which extend from the first, second, and third stem electrodes in a direction which is different from the first and second directions where a boundary line is defined between the first and second stem electrode.Type: GrantFiled: November 17, 2016Date of Patent: January 16, 2018Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Heung Shik Park, Sang Gyun Kim, Ki Chul Shin, Jae Jin Lyu
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Publication number: 20180011379Abstract: A liquid crystal display includes a first insulation substrate, a gate line, a data line configured to cross the gate line while being insulated therefrom, a thin film transistor connected to the gate line and the data line, a pixel electrode configured to include a first subpixel electrode connected to the thin film transistor and a second subpixel electrode, a second insulation substrate configured to face the first insulation substrate, a common electrode disposed on the second insulation substrate, and a liquid crystal layer disposed between the first insulation substrate and the second insulation substrate to include a plurality of liquid crystal molecules, where each of the first subpixel electrode and the second subpixel electrode includes a unit pixel electrode including a plurality of minute branches that is extended from a horizontal stem and a vertical stem.Type: ApplicationFiled: September 22, 2017Publication date: January 11, 2018Inventors: Su Wan WOO, Min Wook PARK, Young Goo SONG, Ki Chul SHIN
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Patent number: 9857641Abstract: A liquid crystal display (“LCD”) includes: a substrate on which a pixel region is defined; and a pixel electrode which is disposed in the pixel region on the substrate. The pixel electrode includes: a plurality of unit pixel electrodes which are arranged substantially in a matrix form; and a connecting electrode which connects the unit pixel electrodes to each other. Neighboring unit pixel electrodes adjacent to each other in a column direction are separated from each other by a first in-between area extending along a row direction, neighboring unit pixel electrodes adjacent to each other in the row direction are separated from each other by a second in-between area extending along the column direction, and the connecting electrode is disposed in a region in which corners of the unit pixel electrodes face each other.Type: GrantFiled: June 15, 2016Date of Patent: January 2, 2018Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Cheol Shin, Hak Sun Chang, Ki Chul Shin, Se Hyun Lee
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Patent number: 9846331Abstract: A liquid crystal display includes a first panel including a first electrode, which includes side electrodes in edge areas of a pixel, a central electrode connected to the side electrodes and disposed in a central area of the pixel, and fine branches, some of which are connected to the side electrode, a second panel in which a cutout, which corresponds to the first electrode and divides the fine branches, the central electrode and the side electrode into domains is defined, and which includes a second electrode, which is separated by the cutout and corresponds to each of the domains, where second slit patterns, which are provided by partially cutting out ends of the fine branches, separate the side electrodes and the fine branches from each other, and extend in parallel to a longitudinal direction of the side electrodes are defined in the first panel.Type: GrantFiled: May 25, 2016Date of Patent: December 19, 2017Assignee: SAMSUNG DISPLAY CO. LTD.Inventors: Se Hyun Lee, Cheol Shin, Hak Sun Chang, Ki Chul Shin
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Patent number: 9846342Abstract: A liquid crystal display includes: a first substrate; a gate line and a data line disposed on the first substrate; a thin film transistor connected to the gate line and the data line; a pixel electrode positioned on the first substrate, connected to the thin film transistor, configured to be applied with a first voltage, and including a first sub-pixel electrode including a first sub-region and a second sub-region and a second sub-pixel electrode configured to be applied with a second voltage; a protrusion electrode protruding from the pixel electrode to overlap the data line; and an insulating layer positioned on the first sub-region of the first sub-pixel electrode and positioned under the second sub-pixel electrode and the second sub-region of the first sub-pixel electrode, wherein the first sub-region of the first sub-pixel electrode overlaps the second sub-pixel electrode.Type: GrantFiled: March 5, 2015Date of Patent: December 19, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jae Hoon Jung, Ki Chul Shin, Dan Bi Yang, Min Joo Han, Ji Phyo Hong
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Publication number: 20170343860Abstract: A liquid crystal display device includes a first substrate, and a first pixel which is disposed on the first substrate, and includes a pixel area and a circuit area adjacent to the pixel area where the first pixel further includes a first pixel electrode in which a slit extending in a first direction is defined, a first sub-pixel electrode disposed on one side of the slit, and a second sub-pixel electrode disposed on another side of the slit, the slit, the first sub-pixel electrode and the second sub-pixel electrode are disposed in the pixel area, and the first sub-pixel electrode and the second sub-pixel electrode are directly connected to each other in the circuit area.Type: ApplicationFiled: April 13, 2017Publication date: November 30, 2017Inventors: Heung Shik PARK, Jae Soo JANG, Kyeong Jong KIM, Ho Kil OH, Ki Chul SHIN
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Publication number: 20170336679Abstract: A liquid crystal display includes a first substrate, a first subpixel electrode, a connecting electrode, and a second subpixel electrode. The first subpixel electrode is on the first substrate and includes a first stem extending in a first direction and a plurality of branches extending from the first stem. The connecting electrode is electrically connected to the first subpixel electrode. The second subpixel electrode is on the same layer as the first subpixel electrode and includes a plurality of separation electrodes that do not overlap the connecting electrode. At least one of the separation electrodes is between a first sub branch and a second sub branch, which neighbor each other from among the branches. The second subpixel electrode is a floating electrode.Type: ApplicationFiled: January 19, 2017Publication date: November 23, 2017Inventors: Hoon KIM, Kyeong Jong KIM, Ki Chul SHIN
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Patent number: 9817281Abstract: A liquid crystal display according to an exemplary embodiment of the present inventive concept includes: a first insulating substrate; a gate line and a data line, a thin film transistor connected to the gate line and the data line, a pixel electrode connected to the thin film transistor, and a second insulating substrate facing the first insulating substrate, wherein one pixel includes the thin film transistor and the pixel electrode and includes a first sub-region and a second sub-region which are separated by the gate line intervened therebetween, the high gradation sub-pixel electrode includes a first high gradation sub-pixel electrode disposed in the first sub-region, and a second high gradation sub-pixel electrode disposed in the second sub-region, and the low gradation sub-pixel electrode includes a first low gradation sub-pixel electrode disposed in the first sub-region, and a second low gradation sub-pixel electrode disposed in the second sub-region.Type: GrantFiled: October 7, 2015Date of Patent: November 14, 2017Assignee: Samsung Display Co., Ltd.Inventors: Oh Jeong Kwon, Yeo Geon Yoon, Sei-Yong Park, Dong-Chul Shin, Hyeok Jin Lee, Jin Won Kim, Ki Chul Shin
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Publication number: 20170322463Abstract: A liquid crystal display device includes: a first substrate; a pixel electrode including a first sub-pixel electrode and disposed on the first substrate; a second substrate facing the first substrate; and a common electrode including an electric field forming portion and a first slit portion, and disposed on the second substrate. The electric field forming portion includes a transparent conductive material. The first slit portion includes a first stem portion extending in a first direction, a second stem portion extending in a second direction different from the first direction and crossing the first stem portion, and a branch portion extending in the first direction and located on at least one of two opposing sides in a longitudinal direction of the second stem portion. Each of the first stem portion and the branch portion has a linear shape surrounded by the electric field forming portion.Type: ApplicationFiled: January 18, 2017Publication date: November 9, 2017Inventors: Hoon KIM, Ki Chul SHIN, Ho Kil OH
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Patent number: 9812055Abstract: A display device includes: a common electrode and a pixel electrode that includes a horizontal stem, a vertical stem, and a branch. A pixel of the branch includes a first branch that extends in a first diagonal direction from the horizontal stem and the vertical stem, and a second branch that extends in a second diagonal direction from the horizontal stem and the vertical stem.Type: GrantFiled: September 16, 2015Date of Patent: November 7, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Hoon Jung, Dan Bi Yang, Ji Phyo Hong, Ki Chul Shin
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Patent number: 9804461Abstract: A display device includes: a substrate; a gate line disposed on the substrate and extending in a first direction; a data line insulated from the gate line and extending in a second direction intersecting the first direction; a pixel electrode disposed in a pixel region defined by the gate line and the data line; a source electrode connected to the data line; a drain electrode spaced apart from the source electrode; and a color filter layer disposed on the data line, the source electrode, and the drain electrode. The color filter layer includes: a first contact hole exposing the drain electrode, and a second contact hole disposed over at least one of the source electrode and the drain electrode. The pixel electrode is disposed on the color filter layer and is connected to the drain electrode through the first contact hole.Type: GrantFiled: February 22, 2016Date of Patent: October 31, 2017Assignee: Samsung Display Co., Ltd.Inventors: Dong Chul Shin, Jin Won Kim, Oh Jeong Kwon, Dong Han Song, Taek Joon Lee, Ki Chul Shin, Hyeok Jin Lee
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Patent number: 9804452Abstract: A liquid crystal display (LCD) according to an exemplary embodiment of the present invention includes: a first insulation substrate; a lower electrode disposed on the first insulation substrate; a second insulation substrate facing the first insulation substrate; an upper electrode disposed on the second insulation substrate and facing the lower electrode; and a liquid crystal layer disposed between the lower electrode and the upper electrode. The lower electrode forms one unit region, the unit region includes a plurality of subregions, and the lower electrode includes: a first lower electrode including a central pattern disposed at a center of a border between each pair of adjacent subregions, and a plurality of micro branch portions that are coupled to the central pattern, the micro branch portions of two different subregions extending in different directions; and a second lower electrode having intersecting elongated portions that each extend along parts of the border.Type: GrantFiled: May 6, 2015Date of Patent: October 31, 2017Assignee: Samsung Display Co., Ltd.Inventors: Oh Jeong Kwon, Sung Jae Yun, Hyeok Jin Lee, Ki Chul Shin
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Patent number: 9799684Abstract: A liquid crystal display includes a first substrate, a gate line and a data line disposed on the first substrate, a first thin film transistor and a second thin film transistor connected to the gate line and the data line, a first subpixel electrode connected to the first thin film transistor, a resistor connected to the second thin film transistor and a resistance of the resistor is changed by a pulsed gate-on signal applied to the gate line, and a second subpixel electrode connected to the resistor.Type: GrantFiled: September 18, 2015Date of Patent: October 24, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae Hoon Jung, Dan Bi Yang, Min-Joo Han, Ji Phyo Hong, Heung Shik Park, Ki Chul Shin
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Publication number: 20170293185Abstract: A liquid crystal display device includes pixels, each including a pixel electrode including first and second stem electrodes, which extend in a first direction and are spaced apart from each other, a third stem electrode, which extends in a second direction perpendicular to the first direction and intersects the first and second stem electrodes, a first edge electrode, which extends in the second direction and intersects first ends of the first and second stem electrodes, a second edge electrode, which extends in the second direction and intersects second ends of the first and second stem electrodes, and branch electrodes, which extend from the first, second, and third stem electrodes in a direction which is different from the first and second directions where a boundary line is defined between the first and second stem electrode.Type: ApplicationFiled: November 17, 2016Publication date: October 12, 2017Inventors: Heung Shik PARK, Sang Gyun KIM, Ki Chul SHIN, Jae Jin LYU
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Publication number: 20170293187Abstract: A liquid crystal display (LCD) includes a substrate, an overcoat layer disposed on the substrate, and a pixel electrode disposed on the overcoat layer. The pixel electrode includes a stem electrode and a plurality of branch electrodes. The stem electrode extends in a first direction and in a second direction crossing the first direction to have a cross shape, and the plurality of branch electrodes extends from the stem electrode obliquely to the first direction and the second direction. The overcoat layer includes a base layer and a plurality of ridge patterns which protrude from a surface of the base layer. The plurality of ridge patterns extends in a different direction from the direction in which the plurality of branch electrodes extends.Type: ApplicationFiled: March 22, 2017Publication date: October 12, 2017Inventors: Israel Esteban LAZO, Heung Shik PARK, Ki Chul SHIN
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Patent number: 9778518Abstract: A liquid crystal display includes a first insulation substrate, a gate line, a data line configured to cross the gate line while being insulated therefrom, a thin film transistor connected to the gate line and the data line, a pixel electrode configured to include a first subpixel electrode connected to the thin film transistor and a second subpixel electrode, a second insulation substrate configured to face the first insulation substrate, a common electrode disposed on the second insulation substrate, and a liquid crystal layer disposed between the first insulation substrate and the second insulation substrate to include a plurality of liquid crystal molecules, where each of the first subpixel electrode and the second subpixel electrode includes a unit pixel electrode including a plurality of minute branches that is extended from a horizontal stem and a vertical stem.Type: GrantFiled: September 3, 2015Date of Patent: October 3, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Su Wan Woo, Min Wook Park, Young Goo Song, Ki Chul Shin
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Patent number: 9759971Abstract: An array substrate includes: first and second gate lines extending along a first direction; a data line extending along a second direction crossing the first direction, and being insulated from the first and second gate lines; a pixel electrode disposed in a pixel area defined by the data line, the first gate line, and the second gate line; a first auxiliary electrode overlapping the first gate line; and a second auxiliary electrode disposed between the pixel electrode and the second gate line, the second auxiliary electrode being spaced apart from the second gate line. The pixel electrode includes: a first subpixel electrode disposed adjacent to the first gate line, and having first direction size greater than a second direction size; and a second subpixel electrode spaced apart from the first subpixel electrode in the second direction, and having a first direction size greater than a second direction size.Type: GrantFiled: April 6, 2015Date of Patent: September 12, 2017Assignee: Samsung Display Co., LtdInventors: Hyo Ju Jung, Jang Wi Ryu, Hak Sun Chang, Ki Chul Shin
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Patent number: 9759959Abstract: A liquid crystal display including a first substrate, a pixel electrode on the first substrate and including a first subpixel electrode and a second subpixel electrode separated from each other and located in one pixel area, a second substrate facing the first substrate, a common electrode on the second substrate, and a liquid crystal layer between the first substrate and the second substrate, wherein a first voltage applied to the first subpixel electrode is higher than a second voltage applied to the second subpixel electrode, wherein the first subpixel electrode includes first branch electrodes, the second subpixel electrode includes second branch electrodes, the second subpixel electrode is located around the pixel area to enclose the first subpixel electrode, wherein the first branch electrodes and the second branch electrodes face each other in a boundary portion of the first subpixel electrode and the second subpixel electrode.Type: GrantFiled: March 6, 2015Date of Patent: September 12, 2017Assignee: Samsung Display Co., Ltd.Inventors: Dong-Chul Shin, Oh Jeong Kwon, Heung Shik Park, Sung-Jae Yun, Su Jin Kim, Jae Hong Park, Ki Chul Shin, Joo Young Yoon, Hyeok Jin Lee
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Patent number: 9761193Abstract: A liquid crystal display (LCD) includes: a display panel including a plurality of pixels connected to a gate line, a data line, and a reference voltage line to which a common voltage is applied; a data driver connected to the data line and configured to apply a data voltage to the data line; a gate driver connected to the gate line and configured to apply a gate voltage to the gate line; a reference voltage generator connected to the reference voltage line and configured to apply a reference voltage to the reference voltage line; and a signal controller configured to control the data driver, the gate driver, and the reference voltage generator, and output a signal to the reference voltage generator for changing the reference voltage applied to the pixels, wherein the reference voltage is changed according to a gray-level value of an image data.Type: GrantFiled: August 26, 2015Date of Patent: September 12, 2017Assignee: Samsung Display Co., Ltd.Inventors: Hoon Kim, Jae Hoon Jung, Ki Chul Shin, Jae Jin Lyu