Patents by Inventor Jang Wi Ryu
Jang Wi Ryu 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: 9651834Abstract: A liquid crystal including: a first substrate; a pixel electrode disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode disposed in one pixel area; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, wherein an area of a region occupied by the first subpixel electrode is less than an area of a region occupied by the second subpixel electrode. Each of the first and second subpixels has a cross-shaped stem and minute branches extending from it to improve side visibility quality and gray scale uniformity.Type: GrantFiled: May 2, 2016Date of Patent: May 16, 2017Assignee: Samsung Display Co., Ltd.Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
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Publication number: 20170131602Abstract: A liquid crystal display includes an insulation substrate, a plurality of pixels disposed on the insulation substrate, where each pixel has a shape elongated in a horizontal direction, and includes a thin film transistor formation region and a display area; and a reference voltage line extending in a vertical direction along a center of the display area, where the display area includes a single high-gray subpixel area and two low-gray subpixel areas, and the single high-gray subpixel area is positioned between the two low-gray subpixel areas.Type: ApplicationFiled: January 24, 2017Publication date: May 11, 2017Inventors: Cheol SHIN, Hak Sun CHANG, Jang Wi RYU, Jae-Soo JANG, Ki Chul SHIN, Seong Young LEE
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Patent number: 9588381Abstract: A liquid crystal display includes an insulation substrate, a plurality of pixels disposed on the insulation substrate, where each pixel has a shape elongated in a horizontal direction, and includes a thin film transistor formation region and a display area; and a reference voltage line extending in a vertical direction along a center of the display area, where the display area includes a single high-gray subpixel area and two low-gray subpixel areas, and the single high-gray subpixel area is positioned between the two low-gray subpixel areas.Type: GrantFiled: September 19, 2014Date of Patent: March 7, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Cheol Shin, Hak Sun Chang, Jang Wi Ryu, Jae-Soo Jang, Ki Chul Shin, Seong Young Lee
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Publication number: 20170038629Abstract: A display device array substrate includes first and second light blocking regions, a first insulation layer disposed on the first light blocking region, a second insulation layer disposed on the second light blocking region, a light blocking member including a first part disposed on the first light blocking region and the first insulation layer, a second part disposed on the second light blocking region and the second insulation layer, and a third part disposed on a boundary between the first and second light blocking regions. A minimum height from an upper surface of the first insulation substrate to an upper surface of the third part is lower than a minimum height from the upper surface of the first insulation substrate to an upper surface of the first part and a minimum height from the upper surface of the first insulation substrate to an upper surface of the second part.Type: ApplicationFiled: May 26, 2016Publication date: February 9, 2017Inventors: Sun Kyu JOO, Jang Wi RYU, Chul HUH
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Patent number: 9563093Abstract: A liquid crystal display includes a lower substrate and an upper substrate facing each other, a liquid crystal layer provided between the lower substrate and the upper substrate, a plurality of pixel electrodes provided on the lower substrate, extended in a substantially horizontal direction, and including a thin film transistor forming region and a display area, a reference voltage line extended in a substantially vertical direction along a center of the display area, a gate line provided on the lower substrate and extended in the substantially horizontal direction between neighboring pixel electrodes of the plurality of pixel electrodes, a data line provided on the lower substrate and crossing the gate line, and a shield electrode overlapping the gate line and including a curved portion which is disposed on an edge portion of the pixel electrode and overlaps the data line.Type: GrantFiled: November 3, 2014Date of Patent: February 7, 2017Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hak Sun Chang, Ka Eun Kim, Jang Wi Ryu, Ki Chul Shin
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Patent number: 9563080Abstract: A display device according to the exemplary embodiment of the present invention includes: a first insulation substrate; a pixel electrode disposed on the first insulation substrate; a first alignment layer disposed on the pixel electrode; a second insulation substrate facing the first insulation substrate; a common electrode disposed on the second insulation substrate; and a liquid crystal layer disposed between the first and second insulation substrates. The liquid crystal layer includes liquid crystal molecules and nanoparticles, and the nanoparticles are disposed adjacent to the common electrode.Type: GrantFiled: April 16, 2015Date of Patent: February 7, 2017Assignee: Samsung Display Co., Ltd.Inventors: Jang Wi Ryu, Gak Seok Lee
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Publication number: 20170010487Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.Type: ApplicationFiled: September 20, 2016Publication date: January 12, 2017Inventors: Jang Wi RYU, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN, Jae-Soo JANG, Ka Eun KIM, Ho Kil OH, Se Hyun LEE, Hyo Ju JUNG, Sang Hyeon SONG, Sang Jin JEON
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Patent number: 9541804Abstract: A liquid crystal display including: a lower electrode; an upper electrode facing the lower electrode; and a liquid crystal layer disposed between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned perpendicular to surfaces of the lower electrode and the upper electrode, wherein the lower electrode includes a center electrode disposed at the center thereof, a first cutout disposed at the center of the center electrode, and a plurality of minute branches disposed extending outwardly from a side edge of the center electrode, and the upper electrode includes a second cutout disposed between the minute branches and the first cutout, a third cutout connected to upper and lower vertices of the second cutout to form a boundary among a plurality of sub-regions together with the first cutout and a fourth cutout connected to left and right vertices of the second cutout.Type: GrantFiled: May 13, 2015Date of Patent: January 10, 2017Assignee: Samsung Display Co., Ltd.Inventors: Se Hyun Lee, Jang Wi Ryu, Ki Chul Shin, Cheol Shin, Hak Sun Chang
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Publication number: 20160370668Abstract: A liquid crystal display includes: a lower panel electrode including a lower panel unit electrodes; an upper panel electrode including an upper panel unit electrodes facing the lower panel unit electrodes; and a liquid crystal layer disposed between the lower panel electrode and the upper panel electrode, in which the lower panel unit electrode includes a stem portion which defines a boundary between a plurality of sub-regions therein, a center pattern disposed at a center of the stem portion and in which overlaps the sub-regions, and a plurality of micro branch portions which extends from the center pattern, where extending directions of the micro branch portions in different regions are different from each other, and an end portion of the micro branch portions is extended in a direction different from an extending direction thereof.Type: ApplicationFiled: September 6, 2016Publication date: December 22, 2016Inventors: Jang Wi RYU, Cheol SHIN, Hak Sun CHANG, Ki Chul SHIN, Ho Kil OH
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Patent number: 9500917Abstract: The present invention relates to a liquid crystal display including: a lower electrode including a unit pixel electrode; an upper electrode including an upper unit electrode facing the unit pixel electrode; and a liquid crystal layer between the lower electrode and the upper electrode and including a plurality of liquid crystal molecules aligned approximately perpendicular to the surfaces of the lower electrode and the upper electrode in the absence of an electric field, wherein the unit pixel electrode includes a stem forming a boundary between a plurality of sub-regions and a plurality of minute branches extending in different directions in two different sub-regions, the upper unit electrode includes an opening facing the stem and extending parallel to the stem, any alignment aid to pretilt the liquid crystal molecules is absent, and a length of the minute branches is equal to or less than about 53 ?m.Type: GrantFiled: July 3, 2013Date of Patent: November 22, 2016Assignee: Samsung Display Co., Ltd.Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Jae-Soo Jang, Ka Eun Kim, Ho Kil Oh, Se Hyun Lee, Hyo Ju Jung, Sang Hyeon Song, Sang Jin Jeon
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Patent number: 9488885Abstract: A display apparatus includes a first substrate including a pixel electrode including a first pattern inclined at first and second angles with respect to a center line and a second substrate including a common electrode including a second pattern alternately arranged with the first pattern. The first angle is about +35 degrees to about +45 degrees and the second angle is about ?35 degrees to about ?45 degrees.Type: GrantFiled: March 31, 2014Date of Patent: November 8, 2016Assignee: Samsung Display Co., Ltd.Inventors: Haksun Chang, Cheol Shin, Jang Wi Ryu, Jae-Soo Jang, Kichul Shin
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Patent number: 9482909Abstract: A liquid crystal display according to an embodiment includes: a lower panel including a pixel electrode having a first subpixel electrode and a second subpixel electrode and an insulating layer between the first subpixel electrode and the second subpixel electrode; an upper panel including a common electrode; and a liquid crystal layer disposed between the lower panel and the upper panel. The first subpixel electrode includes a first plate portion, a first stem having a cross portion extending from the first plate portion and a protrusion extending from the cross portion, and a plurality of first branches extending from the first plate portion and the first stem. The second subpixel electrode includes a second plate portion having an opening and a plurality of second branches extending from the second plate portion. The cross portion does not overlap with the second plate portion. The protrusion overlaps with the second plate portion.Type: GrantFiled: May 12, 2015Date of Patent: November 1, 2016Assignee: Samsung Display Co., Ltd.Inventors: Se Hyun Lee, Hak Sun Chang, Ki Chul Shin, Jang Wi Ryu, Cheol Shin, Ho Kil Oh
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Patent number: 9470934Abstract: A liquid crystal display includes: a lower panel electrode including a lower panel unit electrodes; an upper panel electrode including an upper panel unit electrodes facing the lower panel unit electrodes; and a liquid crystal layer disposed between the lower panel electrode and the upper panel electrode, in which the lower panel unit electrode includes a stem portion which defines a boundary between a plurality of sub-regions therein, a center pattern disposed at a center of the stem portion and in which overlaps the sub-regions, and a plurality of micro branch portions which extends from the center pattern, where extending directions of the micro branch portions in different regions are different from each other, and an end portion of the micro branch portions is extended in a direction different from an extending direction thereof.Type: GrantFiled: December 16, 2013Date of Patent: October 18, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin, Ho Kil Oh
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Patent number: 9437625Abstract: A display panel includes a first pixel electrode electrically connected to a first switching electrode, and includes a plurality of first branches forming micro slits, a second pixel electrode electrically connected to a second switching electrode, and including a plurality of second branches forming micro slits, and a third pixel electrode electrically connected to a third switching electrode, and including a plurality of third branches forming micro slits. The first branches are spaced apart from each other by a first space, and have a first width. The second branches are spaced apart from each other by a second space, and have a second width. The third branches are spaced apart from each other by a third space, and have a third width. At least one of the first width, the second width and the third width is different from the other widths.Type: GrantFiled: January 21, 2014Date of Patent: September 6, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ka-Eun Kim, Jang-Wi Ryu, Ho-Kil Oh, Se-Hyun Lee, Ki-Chul Shin
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Publication number: 20160246133Abstract: A liquid crystal including: a first substrate; a pixel electrode disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode disposed in one pixel area; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, wherein an area of a region occupied by the first subpixel electrode is less than an area of a region occupied by the second subpixel electrode. Each of the first and second subpixels has a cross-shaped stem and minute branches extending from it to improve side visibility quality and gray scale uniformity.Type: ApplicationFiled: May 2, 2016Publication date: August 25, 2016Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang
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Publication number: 20160202572Abstract: A liquid crystal display including a partial plate electrode along with a minute pattern in pixel electrode thereby increasing the viewing angle and the lateral visibility of the liquid crystal display, as well as the response speed A step provider is provided to reinforce the control force of the liquid crystal molecules, thereby reducing the texture generated in the center of the pixel.Type: ApplicationFiled: February 23, 2016Publication date: July 14, 2016Inventors: Hak Sun CHANG, Eun-Kil PARK, Hyun-Ho KANG, Jang Wi RYU, Seung-Suk YANG, Ki Chul SHIN, Se Hyun LEE, Jae-Soo JANG, Hyo Ju JUNG
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Patent number: 9372362Abstract: A liquid crystal display includes a first substrate, a plurality of pixel electrodes disposed on the first substrate and including a first sub-pixel electrode and a second sub-pixel electrode, the first sub-pixel electrode and the second sub-pixel electrode respectively including a cruciform stem part, and a plurality of fine branch parts which extends from the cruciform stem part, and a liquid crystal layer interposed between the first substrate and a second substrate facing the first substrate, the second substrate including a common electrode in which an opening corresponding to the cruciform stem part of the pixel electrode is defined.Type: GrantFiled: January 7, 2014Date of Patent: June 21, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Jae-Soo Jang, Jang Wi Ryu, Cheol Shin, Hak Sun Chang, Ki Chul Shin
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Patent number: 9366916Abstract: A liquid crystal display device includes a lower panel having a lower substrate. A pixel electrode is formed on the lower substrate and includes a partial plate electrode and a plurality of minute branch electrodes extending from the partial plate electrode. A lower layer is formed on the lower substrate and below the pixel electrode and includes an inclined portion. An upper panel includes an upper substrate facing the lower substrate and a common electrode formed on the upper substrate. A liquid crystal layer is positioned between the lower panel and the upper panel, in which a part of the inclined portion is overlapped with a part of the minute branch electrode.Type: GrantFiled: September 4, 2013Date of Patent: June 14, 2016Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Hak Sun Chang, Jang Wi Ryu, Jae-Soo Jang, Ki Chul Shin
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Publication number: 20160147118Abstract: A liquid crystal display according to an embodiment includes: a lower panel including a pixel electrode having a first subpixel electrode and a second subpixel electrode and an insulating layer between the first subpixel electrode and the second subpixel electrode; an upper panel including a common electrode; and a liquid crystal layer disposed between the lower panel and the upper panel. The first subpixel electrode includes a first plate portion, a first stem having a cross portion extending from the first plate portion and a protrusion extending from the cross portion, and a plurality of first branches extending from the first plate portion and the first stem. The second subpixel electrode includes a second plate portion having an opening and a plurality of second branches extending from the second plate portion. The cross portion does not overlap with the second plate portion. The protrusion overlaps with the second plate portion.Type: ApplicationFiled: May 12, 2015Publication date: May 26, 2016Inventors: Se Hyun LEE, Hak Sun CHANG, Ki Chul SHIN, Jang Wi RYU, Cheol SHIN, Ho Kil OH
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Patent number: 9329442Abstract: A liquid crystal including: a first substrate; a pixel electrode disposed on the first substrate and including a first subpixel electrode and a second subpixel electrode disposed in one pixel area; a second substrate facing the first substrate; and a common electrode disposed on the second substrate, wherein an area of a region occupied by the first subpixel electrode is less than an area of a region occupied by the second subpixel electrode. Each of the first and second subpixels has a cross-shaped stem and minute branches extending from it to improve side visibility quality and gray scale uniformity.Type: GrantFiled: November 3, 2015Date of Patent: May 3, 2016Assignee: Samsung Display Co., Ltd.Inventors: Hak Sun Chang, Jang Wi Ryu, Ki Chul Shin, Jae-Soo Jang