Patents by Inventor Kyoung Ku Kang

Kyoung Ku Kang 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).

  • Patent number: 11174340
    Abstract: Provided are a window film composition, a flexible window film formed therefrom and a flexible display device containing the same, the composition comprising: a crosslinking agent represented by RX-X—Z—Y-RY (RX and RY each independently represent a glycidyl group, a glycidyl group-containing functional group, an alicyclic epoxy group or an alicyclic epoxy group-containing functional group); an epoxy group-containing siloxane resin; and an initiator.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: November 16, 2021
    Assignee: SOLIP TECH CO., LTD.
    Inventors: Seung Woo Jang, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Dong Il Han
  • Patent number: 10797261
    Abstract: The present invention relates to a display film and, more particularly, to a display film comprising a substrate layer and a coating layer formed on one surface of the substrate layer, wherein a first critical radius of curvature measured in a direction in which the side surface of the coating layer becomes concave is at most about 10 mm, and a second critical radius of curvature measured in a direction in which the side surface of the substrate layer becomes concave is at most about 5 mm. The display film according to the present invention has a high surface hardness while exhibiting superior flexibility in both directions vertical to the plane direction of the film and thus is suitable for application as an outer window film for a display and particularly has the property of being applicable to a flexible display.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: October 6, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin Hee Choi, Kyoung Ku Kang, Si Kyun Park, Jung Hyo Lee, Sung Han Kim, Joo Hui Kim
  • Patent number: 10711157
    Abstract: Provided are: a composition for a window film, containing a silicone resin comprising chemical formula 1 below, a cross-linking agent, and an initiator; a window film formed therefrom; and a flexible display device comprising the same. (R1SiO3/2)x(SiO3/2-Q-SiO3/2)y(R2SiO3/2)z (In chemical formula 1, R1 and R2 are each independently a cycloaliphatic epoxy group, a cycloaliphatic epoxy group-containing functional group, a glycidyl group, or a glycidyl group-containing functional group; Q is R3 or -A1-T-A2-; R3 is a substituted or unsubstituted C1 to C10 alkylene group, or a substituted or unsubstituted C6 to C30 arylene group; A1 and A2 are each independently a single bond, or a substituted or unsubstituted C1 to C5 alkylene group; T is a mono- or polyalkylene oxide group, or an imide group-containing functional group; and 0<x<1, 0<y<1, 0?z<1, and x+y+z=1.
    Type: Grant
    Filed: August 25, 2016
    Date of Patent: July 14, 2020
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Patent number: 10611925
    Abstract: Provided are: a composition for a window film, containing a siloxane resin including chemical formula 1 below and an iodonium ion-containing photo-cationic initiator; a flexible window film formed therefrom; and a flexible display device comprising the same. Chemical formula 1: (R1SiO3/2)x(R2R3SiO2/2)y.
    Type: Grant
    Filed: December 22, 2015
    Date of Patent: April 7, 2020
    Assignees: Samsung SDI CO., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Si Kyun Park, Kyoung Ku Kang, Jung Hyo Lee, Jin Hee Choi, Sung Han Kim, Joo Hui Kim, Nak Hyun Sung, Eun Su Lee
  • Patent number: 10613260
    Abstract: Provided are a window film for a display and a display device including the same, and the window film for a display comprises: a substrate layer; a coating layer formed on one side of the substrate layer; and an adhesive layer formed on the other side of the substrate layer, wherein the coating layer and/or the adhesive layer includes, relative to each layer, a UV absorbent of approximately 3 wt % to approximately 20 wt %, and the window film for a display has a transmittance of approximately 1% or less for a wavelength of 390 nm or less.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: April 7, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Jin Hee Choi, Kyoung Ku Kang, Si Kyun Park, Joo Hui Kim
  • Patent number: 10604652
    Abstract: A composition for a window film including a first silicon resin including a compound represented by Formula 1; a second silicon resin including a crosslinkable functional group and at least one of a Q unit and a bridge unit; a crosslinking agent; and an initiator, a flexible window film formed therefrom, and a flexible display device including the same are disclosed.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: March 31, 2020
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Dong Il Han, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Seung Woo Jang
  • Patent number: 10563092
    Abstract: Provided are: a composition for a window film, containing a siloxane resin including chemical formula 1, a cross-linking agent, and an initiator; a flexible window film formed therefrom; and a flexible display device including the same.
    Type: Grant
    Filed: July 22, 2016
    Date of Patent: February 18, 2020
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Min Hye Kim, Kyoung Ku Kang, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Patent number: 10513631
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising same, the composition for a window film comprising: a first silicone resin comprising chemical formula 1; a second silicone resin containing a crosslinkable functional group and one or more among a Q unit and a bridge unit; a crosslinking agent; and an initiator. (R1SiO3/2)x([R2R3SiO2/2]n)y(R4R5SiO2/2)z(R6R7R8SiO1/2)w (where R1 is a crosslinkable functional group; R2 and R3 are each independently a methyl group; R4 and R5 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, or an unsubstituted or substituted C5-C20 cycloalkyl group; R6, R7, and R8 are each independently hydrogen, a crosslinkable functional group, an unsubstituted or substituted C1-C20 alkyl group, an unsubstituted or substituted C5-C20 cycloalkyl group, or an unsubstituted or substituted C6-C30 aryl group; n is an integer from 7 to 100; 0<x<1, 0.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: December 24, 2019
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Dong Il Han, Kyoung Ku Kang, Min Hye Kim, Ji Hwan Park, Chang Soo Woo, Ji Sun Im, Seung Woo Jang
  • Patent number: 10508218
    Abstract: A window film includes a base layer and a coating layer formed on the base layer. The coating layer contains a silicone resin, and the window film contains a dye having a maximum absorption wavelength of about 500 nm to about 650 nm. A display includes the window film, and may be a flexible display.
    Type: Grant
    Filed: August 19, 2015
    Date of Patent: December 17, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Jung Hyo Lee, Kyoung Ku Kang, Sung Han Kim, Joo Hui Kim, Si Kyun Park, Nak Hyun Sung, Jin Hee Choi
  • Patent number: 10450482
    Abstract: Provided are: a composition for a window film; a flexible window film formed therefrom; and a flexible display device comprising the same, wherein the composition contains: a siloxane resin comprising chemical Chemical Formula 1 or 2 or a mixture thereof; a cross-linking agent; and an initiator, the cross-linking agent being contained in a content of about 10-30 parts by weight on the basis of 100 parts by weight of the siloxane resin or the mixture thereof.
    Type: Grant
    Filed: December 16, 2015
    Date of Patent: October 22, 2019
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Joo Hui Kim, Si Kyun Park, Kyoung Ku Kang, Sung Han Kim, Jung Hyo Lee, Jin Hee Choi
  • Patent number: 10366799
    Abstract: A transparent conductor, a method of manufacturing the same, and a display including the same, the transparent conductor including metal nanowires; and a matrix in which the metal nanowires are embedded, wherein a capping layer is formed on surfaces of the metal nanowires, the capping layer including a sulfur-containing compound, and the capping layer has a thickness of about 0.025 or less times an average diameter of the metal nanowires.
    Type: Grant
    Filed: November 17, 2016
    Date of Patent: July 30, 2019
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Do Young Kim, Kyoung Ku Kang, Dong Myeong Shin, Dae Seob Shim, Young Hoon Kim, Ji Hyeon Yim, Yong Un Jung, Oh Hyeon Hwang
  • Patent number: 10329385
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising the same, wherein the composition for a window film, contains: (1) a siloxane resin comprising (R1SiO3/2)x(R2SiO3/2)y (wherein, R1 is a cross-linkable functional group, R2 is a UV absorbing functional group or a UV absorbing functional group-containing group, and 0<x<1, 0<y<1, x+y=1) and (2) an initiator.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: June 25, 2019
    Assignees: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Publication number: 20190023860
    Abstract: Provided are a siloxane resin of chemical formula 1, a composition for a window film, the composition containing a cross-linking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same.
    Type: Application
    Filed: October 7, 2016
    Publication date: January 24, 2019
    Applicants: Samsung SDI Co., Ltd., Samsung Electronics Co., Ltd.
    Inventors: Min Hye KIM, Kyoung Ku KANG, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG, Jin Hee CHOI, Dong Il HAN
  • Publication number: 20180371189
    Abstract: Provided are a window film composition, a flexible window film formed therefrom and a flexible display device containing the same, the composition comprising: a crosslinking agent represented by RX—X—Z—Y—RY (RX and RY each independently represent a glycidyl group, a glycidyl group-containing functional group, an alicyclic epoxy group or an alicyclic epoxy group-containing functional group); an epoxy group-containing siloxane resin; and an initiator.
    Type: Application
    Filed: July 22, 2016
    Publication date: December 27, 2018
    Applicants: SAMSUNG SDI CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Seung Woo JANG, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Dong Il HAN
  • Publication number: 20180355175
    Abstract: Provided is a composition for window films comprising a siloxane resin of formula 1, a crosslinking agent and an initiator, a flexible window film formed therefrom, and a flexible display device comprising the same. (R1SiO3/2)x(R2SiO3/2)y(R3R4SiO2/2)z(SiO4/2)w (in formula 1, R1 is a functional group containing an alicyclic epoxy group, R2 is a functional group containing a glycidyl group, R3 and R4 are each independently a hydrogen, a functional group containing an alicyclic epoxy group, a functional group containing a glycidyl group, an optionally substituted C1 to C20 alkyl group, an optionally substituted C5 to C20 cycloalkyl group or an optionally substituted C6 to C20 aryl group, wherein 0<x<1, 0<y?0.5, 0?z<1, 0?w<1, and x+y+z+w=1).
    Type: Application
    Filed: September 6, 2016
    Publication date: December 13, 2018
    Inventors: Dong Il HAN, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG
  • Patent number: 10115495
    Abstract: A transparent conductor includes a base layer, and a conductive layer on an upper surface of the base layer. The conductive layer includes metal nanowires and a matrix. The transparent conductor has a reflective a* value of about ?0.3 to about +0.3 and a reflective b* value of about ?2 to about 0. The transparent conductor exhibits good optical properties and prevents (or reduces) visibility of the etching pattern of the conductive layer.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: October 30, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Do Young Kim, Young Kwon Koo, Dong Myeong Shin, Hyoung Tae Lim, Oh Hyeon Hwang, Kyoung Ku Kang
  • Publication number: 20180282484
    Abstract: Provided are a composition for a window film, a flexible window film formed therefrom, and a flexible display device comprising the same, wherein the composition for a window film, contains: (1) a siloxane resin comprising (R1SiO3/2)x(R2SiO3/2)y (wherein, R1 is a cross-linkable functional group, R2 is a UV absorbing functional group or a UV absorbing functional group-containing group, and 0<x<1, 0<y<1, x+y=1) and (2) an initiator.
    Type: Application
    Filed: November 13, 2015
    Publication date: October 4, 2018
    Inventors: Chang Soo Woo, Kyoung Ku Kang, Min Hye Kim, Ji Sun Im, Seung Woo Jang, Dong Il Han
  • Patent number: 10090075
    Abstract: A display device connected by an anisotropic conductive film, wherein the anisotropic conductive film includes conductive particles and has a minimum melt viscosity of 900 Pa·s to 90,000 Pa·s at 80° C. to 140° C.
    Type: Grant
    Filed: November 20, 2015
    Date of Patent: October 2, 2018
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Youn Jo Ko, Kyoung Ku Kang, Soon Young Kwon, Ie Ju Kim, Hyun Joo Seo, Se Mi Heo
  • Publication number: 20180244953
    Abstract: Provided are: a composition for a window film, containing a silicone resin comprising chemical formula 1 below, a cross-linking agent, and an initiator; a window film formed therefrom; and a flexible display device comprising the same. (R1SiO3/2)x(SiO3/2-Q-SiO3/2)y(R2SiO3/2)z (In chemical formula 1, R1 and R2 are each independently a cycloaliphatic epoxy group, a cycloaliphatic epoxy group-containing functional group, a glycidyl group, or a glycidyl group-containing functional group; Q is R3 or -A1-T-A2-; R3 is a substituted or unsubstituted C1 to C10 alkylene group, or a substituted or unsubstituted C6 to C30 arylene group; A1 and A2 are each independently a single bond, or a substituted or unsubstituted C1 to C5 alkylene group; T is a mono- or polyalkylene oxide group, or an imide group-containing functional group; and 0<x<1, 0<y<1, 0?z<1, and x+y+z=1.
    Type: Application
    Filed: August 25, 2016
    Publication date: August 30, 2018
    Inventors: Chang Soo WOO, Kyoung Ku KANG, Min Hye KIM, Ji Hwan PARK, Ji Sun IM, Seung Woo JANG, Dong Il HAN
  • Publication number: 20180215948
    Abstract: Provided are: a composition for a window film, containing a siloxane resin including chemical formula 1, a cross-linking agent, and an initiator; a flexible window film formed therefrom; and a flexible display device including the same.
    Type: Application
    Filed: July 22, 2016
    Publication date: August 2, 2018
    Inventors: Min Hye KIM, Kyoung Ku KANG, Ji Hwan PARK, Chang Soo WOO, Ji Sun IM, Seung Woo JANG, Dong Il HAN