Patents by Inventor Yong-Kuk Yun
Yong-Kuk Yun 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: 20180265784Abstract: A liquid-crystalline medium which comprises at least one compound of the formula I, and one or more compounds of the formula ST and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PA-VA, SS-VA, SA-VA, PS-VA, PALC, IPS, PS-IPS, UB-FFS, U-IPS, FFS or PS-FFS effect.Type: ApplicationFiled: March 16, 2018Publication date: September 20, 2018Applicant: MERCK PATENT GMBHInventors: Chang-Suk CHOI, Chang-Jun YUN, Yeon-Jeong HAN, Heui-Seok JIN, Yong-Kuk YUN
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Publication number: 20180265786Abstract: Liquid-crystalline media containing a) one or more compounds of formula IA, and b) one or more compounds of formula II and c) one or more compounds of formulae III-1 to III-4, their use in electro-optical displays, particularly in active-matrix displays based on the VA, ECB, FFS or IPS effect.Type: ApplicationFiled: March 16, 2018Publication date: September 20, 2018Applicant: MERCK PATENT GMBHInventors: Chang-Suk Choi, Chang-Jun Yun, Yeon-Jeong Han, Heui-Seok Jin, Yong-Kuk Yun
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Publication number: 20180258346Abstract: The present invention relates to liquid-crystalline media (LC media) comprising a low-molecular-weight component, a self-alignment additive comprising a thiol group and optionally a polymerizable component. The self-alignment additives effect homeotropic (vertical) alignment of the LC media at a surface or the cell walls of a liquid-crystal display (LC display). The invention therefore also encompasses LC displays having homeotropic alignment of the liquid-crystalline medium (LC medium) without alignment layers. The invention discloses novel structures for self-alignment additives which have a thiol functional groups.Type: ApplicationFiled: August 16, 2016Publication date: September 13, 2018Applicant: MERCK PATENT GMBHInventors: Yong-Kuk YUN, Min-Ok JIN, Hyun-Jin YOON, Mi-Nam PARK, Rocco FORTTE, Graziano ARCHETTI, Thorsten KODEK, Izumi SAITO
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Publication number: 20180195002Abstract: The present invention relates to liquid-crystalline media comprising one or more compounds selected from the compounds of formula I and compounds of formulae CV, OT and CP wherein the occurring groups have the meanings defined herein, and to liquid-crystal displays containing these media, especially to active-matrix displays and in particular to IPS and FFS displays. The invention further relates to a process for the fabrication of liquid crystal displays using the ODF process.Type: ApplicationFiled: January 9, 2018Publication date: July 12, 2018Applicant: MERCK PATENT GMBHInventors: Chang-Jun YUN, Chang-Suk CHOI, Yeon-Jeong HAN, Heui-Seok JIN, Yong-Kuk YUN
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Publication number: 20180134959Abstract: The present invention relates to a liquid crystal (LC) medium comprising a polymerisable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.Type: ApplicationFiled: April 29, 2016Publication date: May 17, 2018Applicant: MERCK PATENT GMBHInventors: Eun-Kyu LEE, Jin-Soon PARK, Hyun-Jin YOON, Min-OK JIN, Yong-Kuk YUN
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Patent number: 9963637Abstract: The present invention relates to a liquid crystalline medium comprising a polymerizable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in liquid crystalline displays, especially in a liquid crystalline display of the polymer sustained alignment (PSA) type, and to a liquid crystalline display, especially a PSA display, comprising it.Type: GrantFiled: July 1, 2016Date of Patent: May 8, 2018Assignee: Merck Patent GmbHInventors: Eun-Kyu Lee, Hyun-Jin Yoon, Ji-Won Jeong, Hye-Ryung Park, Seung-Jai Kim, Yong-Jun Ji, Min-Ok Jin, Yong-Kuk Yun
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Publication number: 20180044591Abstract: The present invention relates to a liquid crystal (LC) medium comprising a polymerizable compound, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.Type: ApplicationFiled: August 4, 2017Publication date: February 15, 2018Applicant: MERCK PATENT GMBHInventors: Ji-Won JEONG, Eun-Kyu LEE, Hyun-Jin YOON, Min-Ok JIN, Yong-Kuk YUN
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Publication number: 20180002604Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds comprising a self-alignment additive for vertical alignment and additionally at least one compound of formula I as described more closely within this disclosure (polymerizable HALS), especially for vertically aligned display applications.Type: ApplicationFiled: June 23, 2017Publication date: January 4, 2018Applicant: Merck Patent GmbHInventors: Hyun-Jin YOON, Mi-Na PARK, Ji-Won JEONG, Eun-Kyu LEE, Min-Ok JIN, Yong-Kuk YUN
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Publication number: 20170335194Abstract: The invention relates to a liquid-crystalline medium, in particular based on a mixture of polar compounds, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PA-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effect.Type: ApplicationFiled: May 17, 2017Publication date: November 23, 2017Applicant: MERCK PATENT GMBHInventors: Eun-Kyu LEE, Ji-Won JEONG, Min-Ok JIN, Yong-Kuk YUN
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Publication number: 20170253801Abstract: The present invention relates to liquid crystalline (LC) medium, to a method of its production and to the use of such LC media in polymer network liquid crystalline (PNLC) light modulation elements operated in the reverse mode. Furthermore, the present invention relates to such light modulation elements, as such, to the use of such light modulation elements as light shutters for transparent OLED displays, and to a method of production of such light modulation elements according to the present invention.Type: ApplicationFiled: March 1, 2017Publication date: September 7, 2017Applicant: Merck Patent GmbHInventors: Hyun-Woo BAE, Dong-Mee SONG, Hoo-Yong Lee, Jung-Min LEE, Yong-Kuk Yun
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Patent number: 9719016Abstract: Disclosed are a liquid crystal (LC) medium containing a polymerisable compound, a process for its preparation, its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display.Type: GrantFiled: January 21, 2016Date of Patent: August 1, 2017Assignee: Merck Patent GmbHInventors: Ji-Won Jeong, Hyun-Jin Yoon, Eun-Kyu Lee, Min-Ok Jin, Yong-Kuk Yun
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Publication number: 20160215214Abstract: Disclosed are a liquid crystal (LC) medium containing a polymerisable compound, a process for its preparation, its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display.Type: ApplicationFiled: January 21, 2016Publication date: July 28, 2016Applicant: Merck Patent GmbHInventors: Ji-Won JEONG, Hyun-Jin YOON, Eun-Kyu LEE, Min-Ok JIN, Yong-Kuk YUN
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Publication number: 20160215216Abstract: The invention relates to a polymer film comprising a polymerised liquid crystal (LC) material with improved adhesion to a substrate, to methods for preparing such a polymer film, to a polymerisable LC material used for the preparation of such a polymer film, and to the use of the polymer film and said polymerisable LC material for optical, electrooptical, decorative or security uses and devices.Type: ApplicationFiled: July 31, 2014Publication date: July 28, 2016Applicant: MERCK PATENT GMBHInventors: Hyun-Jin YOON, Yong-Kuk YUN, Heui-Seok JIN, Yong-Hyun CHOI
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Publication number: 20160152894Abstract: The present invention relates to a liquid crystal (LC) medium comprising a terphenyl compound and at least two polymerisable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.Type: ApplicationFiled: December 1, 2015Publication date: June 2, 2016Applicant: MERCK PATENT GMBHInventors: Hyun-Jin YOON, Ji-Won JEONG, Eun-Kyu LEE, Min-Ok JIN, Yong-Kuk YUN
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Publication number: 20160137923Abstract: The present invention relates to a liquid crystal (LC) medium comprising a terphenyl compound and at least two polymerizable compounds, to a process for its preparation, to its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in an LC display of the polymer sustained alignment (PSA) type, and to an LC display, especially a PSA display, comprising it.Type: ApplicationFiled: November 13, 2015Publication date: May 19, 2016Applicant: MERCK PATENT GMBHInventors: Hyun-Jin YOON, Ji-Won JEONG, Eun-Kyu LEE, Min-Ok JIN, Yong-Kuk YUN
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Publication number: 20150036095Abstract: The invention relates to a liquid-crystalline medium which contains at least two polymerisable compounds or reactive mesogens (RM) and at least one compound selected from the group of compounds of the formula IIA, IIB and IIC, in which R2A, R2B, R2C, L1-6, ring B, Z2, Z2, p, q and v have the meanings indicated in Claim 1, and to the use thereof for an active-matrix display, in particular based on the VA, PSA, PS-VA, PALC, FFS, PS-FFS, IPS or PS-IPS effect, especially for the use in LC displays of the PS (polymer stabilised) or PSA (polymer sustained alignment) type.Type: ApplicationFiled: February 12, 2013Publication date: February 5, 2015Applicant: Merck Patent GmbHInventors: Ji-Won Jeong, Yong-Kuk Yun, Dong-Mee Song, Jung-Min Lee
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Patent number: 8884290Abstract: A thin film transistor array panel, a display device including the thin film transistor array panel, and a method for manufacturing the display device. The thin film transistor array panel includes a substrate having first and second surfaces, a first thin film form formed on the first surface and including a first electrode, and a second thin film form formed on the second surface and including a second electrode, to thereby improve the viewing angle and contrast ratio of the display device.Type: GrantFiled: November 13, 2007Date of Patent: November 11, 2014Assignee: Samsung Display Co., Ltd.Inventors: Keun-Chan Oh, Yong-Kuk Yun, Woo-Jin Bae
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Patent number: 8610867Abstract: Provided are a liquid crystal composition and a liquid crystal display (LCD) including the liquid crystal composition. The LCD includes a first display panel a second display panel facing the first display panel, and a liquid crystal composition disposed between the first display panel and the second display panel. If a dielectric constant in a direction parallel to a long axis of liquid crystals is defined as a horizontal dielectric constant ??, a dielectric constant in a direction perpendicular to the long axis of the liquid crystals is defined as a vertical dielectric constant ??, and the difference between the vertical dielectric constant ?? and the horizontal dielectric constant ?? is defined as dielectric anisotropy ??, then a ratio ??/?? of the dielectric anisotropy ?? to the vertical dielectric constant ?? of the liquid crystal composition is 0.5 or less.Type: GrantFiled: January 20, 2009Date of Patent: December 17, 2013Assignee: Samsung Display Co., Ltd.Inventors: Dong-Gyu Kim, Kyoung-Ju Shin, Jong-Ho Son, Yong-Kuk Yun, Jun-Pyo Lee, Seunng-Soo Baek
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Patent number: 8259273Abstract: A liquid crystal includes about 60 wt % to about 80 wt % of a first compound material, about 2 wt % to about 15 wt % of a second compound material, and a neutral compound material. The first compound material has a dielectric anisotropy of a first polarity, and the second compound material has a dielectric anisotropy of a second polarity.Type: GrantFiled: March 28, 2011Date of Patent: September 4, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Hyun-Wuk Kim, Jae-Jin Lyu, Yong-Kuk Yun
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Publication number: 20110170044Abstract: A liquid crystal includes about 60 wt % to about 80 wt % of a first compound material, about 2 wt % to about 15 wt % of a second compound material, and a neutral compound material. The first compound material has a dielectric anisotropy of a first polarity, and the second compound material has a dielectric anisotropy of a second polarity.Type: ApplicationFiled: March 28, 2011Publication date: July 14, 2011Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Hyun-Wuk KIM, Jae-Jin LYU, Yong-Kuk Yun