Patents by Inventor Mi Jeong Choi

Mi Jeong Choi 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).

  • Publication number: 20210292495
    Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
    Type: Application
    Filed: May 19, 2021
    Publication date: September 23, 2021
    Inventors: Seung Koo PARK, Sung Ryul YUN, Ki Uk KYUNG, Mi Jeong CHOI, Bong Je PARK, Suntak PARK, Saekwang NAM, Seongcheol MUN, Eun Jin SHIN, Jeong Mook LIM
  • Patent number: 11041055
    Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
    Type: Grant
    Filed: April 19, 2018
    Date of Patent: June 22, 2021
    Assignee: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE
    Inventors: Seung Koo Park, Sung Ryul Yun, Ki Uk Kyung, Mi Jeong Choi, Bong Je Park, Suntak Park, Saekwang Nam, Seongcheol Mun, Eun Jin Shin, Jeong Mook Lim
  • Publication number: 20210151713
    Abstract: Provided are: a composition for an organic light emitting diode comprising an indole-based photocurable monomer, a non-indole-based photocurable monomer, and an initiator, and an organic light emitting display manufactured therefrom.
    Type: Application
    Filed: July 5, 2018
    Publication date: May 20, 2021
    Inventors: Seong Ryong NAM, Mi Jeong CHOI, Sung Min KO, Bum Jin LEE
  • Publication number: 20210108135
    Abstract: Quantum dots surface-modified with a compound represented by Chemical Formula 1 or Chemical Formula 2, a curable composition including the quantum dots, a cured layer, and a color filter. In Chemical Formula 1 and Chemical Formula 2, each substituent is the same as defined in the specification.
    Type: Application
    Filed: September 22, 2020
    Publication date: April 15, 2021
    Inventors: Yonghee KANG, Jonggi KIM, Jihyeon YIM, Dongjun KIM, Misun KIM, Minjee PARK, Bumjin LEE, Injae LEE, Mi Jeong CHOI
  • Publication number: 20210024819
    Abstract: A quantum dot surface-modified with a specific compound, a non-solvent curable composition including the quantum dot, a solvent based curable composition including the quantum dot, a cured layer manufactured utilizing the curable composition, a color filter including the cured layer, and a display device including the cured layer are disclosed.
    Type: Application
    Filed: January 14, 2020
    Publication date: January 28, 2021
    Inventors: Yonghee KANG, Jonggi KIM, Dongjun KIM, Misun KIM, Minjee PARK, Bumjin LEE, Jihyeon YIM, Mi Jeong CHOI
  • Patent number: 10756139
    Abstract: Disclosed is an organic light emitting display device including a substrate, an organic light emitting element formed on the substrate, and an encapsulation layer encapsulating the organic light emitting element, wherein the encapsulation layer has a structure in which at least two inorganic layers and at least one organic layer are alternately stacked one above another, each of the inorganic layers having a thickness of about 40 nm to about 1,000 nm and an index of refraction of about 1.41 to about 2.0, each of the organic layer having a thickness of about 0.2 ?m to about 15 ?m and an index of refraction of about 1.4 to about 1.65, the organic layer including a composition for encapsulating a display device, the composition for encapsulating a display device including a photocurable monomer and a photopolymerization initiator.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: August 25, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hye Jin Kim, Sung Min Ko, Mi Sun Kim, Seong Ryong Nam, Ji Yeon Lee, Mi Jeong Choi
  • Publication number: 20200248068
    Abstract: A non-solvent curable composition including a quantum dot and a polymerizable monomer having a carbon-carbon double bond at the terminal end and having a vapor pressure of about 1×10?5 mmHg to about 1×10?4 mmHg, a cured layer manufactured utilizing the non-solvent curable composition, a color filter including the cured layer, a display device including the color filter, and a method of manufacturing the cured layer are disclosed.
    Type: Application
    Filed: January 14, 2020
    Publication date: August 6, 2020
    Inventors: Mi Jeong CHOI, Yonghee KANG, Dongjun KIM, Misun KIM, Jonggi KIM, Minjee PARK, Bumjin LEE, Jihyeon YIM
  • Patent number: 10727443
    Abstract: Provided is an organic light emitting display comprising: a substrate including a light emitting zone and a non-light emitting zone, which is positioned around the outside of the light emitting zone; at least one organic light emitting diode formed on the light emitting zone; an encapsulation layer for sealing the organic light emitting diode; and a dam formed on the non-light emitting zone, wherein the encapsulation layer includes a structure in which at least one inorganic layer and at least one organic layer are alternatingly stacked, wherein the organic layer is made from a display sealing material composition, and wherein the display sealing material composition comprises a photo-curable monomer and a photopolymerization initiator. The photo-curable monomer comprises: a monomer not having an aromatic hydrocarbon group; and a monomer, represented by chemical formula 1, having at least two substituted or non-substituted phenyl groups, wherein the photo-curable monomer comprises approximately 5 wt.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: July 28, 2020
    Assignee: SAMSUNG SDI CO., LTD.
    Inventors: Hye Jin Kim, Sung Min Ko, Mi Sun Kim, Seong Ryong Nam, Ji Yeon Lee, Mi Jeong Choi
  • Publication number: 20200231871
    Abstract: A quantum dot surface-modified with a ligand, a non-solvent curable composition including the quantum dot, a solvent-based curable composition including the quantum dot, a cured layer manufactured utilizing the curable composition, a color filter including the cured layer, a display device including the color filter, and a method of manufacturing the cured layer are disclosed.
    Type: Application
    Filed: January 14, 2020
    Publication date: July 23, 2020
    Inventors: Jonggi KIM, Yonghee KANG, Dongjun KIM, Misun KIM, Minjee PARK, Bumjin LEE, Jihyeon YIM, Mi Jeong CHOI
  • Patent number: 10700133
    Abstract: Disclosed is an organic light emitting diode display apparatus including: a substrate; an organic light emitting diode disposed on the substrate; and an encapsulation layer encapsulating the organic light emitting diode. The encapsulation layer has a structure in which two or more inorganic layers and one or more organic layers are alternately stacked one above another, two adjacent inorganic layers at least partially contact each other, and the organic layers are formed of an encapsulating composition. The encapsulating composition includes a photocurable monomer and a photopolymerization initiator. The photocurable monomer includes a monomer containing no aromatic hydrocarbon group; and a monomer having two or more substituted or unsubstituted phenyl groups represented by Formula 1.
    Type: Grant
    Filed: May 2, 2016
    Date of Patent: June 30, 2020
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hye Jin Kim, Sung Min Ko, Mi Sun Kim, Seong Ryong Nam, Ji Yeon Lee, Mi Jeong Choi
  • Publication number: 20200032013
    Abstract: Provided are a composition for a light transmittance control film, and a light transmittance control film. According to the inventive concept, the light transmittance control film includes a matrix part including a copolymer and a polymer chain which is grafted to the copolymer; and a dispersed part including a polymer derived from a first monomer, and are provided in the matrix part, wherein the polymer chain is derived from the first monomer, first light transmittance is shown while external force is applied, and second light transmittance which is greater than the first light transmittance may be shown after the external force is removed.
    Type: Application
    Filed: April 19, 2018
    Publication date: January 30, 2020
    Inventors: Seung Koo PARK, Sung Ryul YUN, Ki Uk KYUNG, Mi Jeong CHOI, Bong Je PARK, Suntak PARK, Saekwang NAM, Seongcheol MUN, Eun Jin SHIN, Jeong Mook LIM
  • Publication number: 20190129302
    Abstract: A photosensitive resin composition includes: (A) a binder resin; (B) a photopolymerizable monomer; (C) a photopolymerization initiator; (D) a quantum dot surface-modified with a compound having a thiol group at one terminal end and an alkoxy group, a cycloalkyl group, a carboxyl group, or a hydroxy group at the other terminal end; and (E) a solvent. A curable composition includes: (A?) a resin; (B?) a quantum dot surface-modified with a compound represented by Chemical Formula 1 or Chemical Formula 2; and (C?) a solvent. A method of manufacturing the surface-modified quantum dot, and a color filter manufactured using the photosensitive resin composition or the curable composition are also disclosed.
    Type: Application
    Filed: October 9, 2018
    Publication date: May 2, 2019
    Inventors: Jinsuop YOUN, Misun KIM, Hong Jeong YU, Bumjin LEE, Yonghee KANG, Dongjun KIM, Byeonggeun SON, Jihyeon YIM, Mi Jeong CHOI, Jonggi KIM, Minjee PARK, Hojeong PAEK, Woo Jung SHIN, Young Woong JANG
  • Publication number: 20180342674
    Abstract: Provided are a composition for encapsulating an organic light emitting element and an organic light emitting element display device manufactured therefrom, the composition comprising: (A) a non-silicone-based photocurable multifunctional monomer; (B) a silicone-based photocurable multifunctional monomer; (C) a non-silicone-based photocurable monofunctional monomer; (D) a silicone-based photocurable monofunctional monomer; and (E) an initiator, wherein the silicone-based photocurable multifunctional monomer (B) is represented by chemical formula 1.
    Type: Application
    Filed: August 25, 2016
    Publication date: November 29, 2018
    Inventors: Seong Ryong NAM, Mi Jeong CHOI, Sung Min KO
  • Publication number: 20180158880
    Abstract: Disclosed is an organic light emitting diode display apparatus including: a substrate; an organic light emitting diode disposed on the substrate; and an encapsulation layer encapsulating the organic light emitting diode. The encapsulation layer has a structure in which two or more inorganic layers and one or more organic layers are alternately stacked one above another, two adjacent inorganic layers at least partially contact each other, and the organic layers are formed of an encapsulating composition. The encapsulating composition includes a photocurable monomer and a photopolymerization initiator. The photocurable monomer includes a monomer containing no aromatic hydrocarbon group; and a monomer having two or more substituted or unsubstituted phenyl groups represented by Formula 1.
    Type: Application
    Filed: May 2, 2016
    Publication date: June 7, 2018
    Inventors: Hye Jin KIM, Sung Min KO, Mi Sun KIM, Seong Ryong NAM, Ji Yeon LEE, Mi Jeong CHOI
  • Publication number: 20180158879
    Abstract: Disclosed is an organic light emitting display device including a substrate, an organic light emitting element formed on the substrate, and an encapsulation layer encapsulating the organic light emitting element, wherein the encapsulation layer has a structure in which at least two inorganic layers and at least one organic layer are alternately stacked one above another, each of the inorganic layers having a thickness of about 40 nm to about 1,000 nm and an index of refraction of about 1.41 to about 2.0, each of the organic layer having a thickness of about 0.2 ?m to about 15 ?m and an index of refraction of about 1.4 to about 1.65, the organic layer including a composition for encapsulating a display device, the composition for encapsulating a display device including a photocurable monomer and a photopolymerization initiator.
    Type: Application
    Filed: May 2, 2016
    Publication date: June 7, 2018
    Inventors: Hye Jin KIM, Sung Min KO, Mi Sun KIM, Seong Ryong NAM, Ji Yeon LEE, Mi Jeong CHOI
  • Publication number: 20180090714
    Abstract: Provided is an organic light emitting display comprising: a substrate including a light emitting zone and a non-light emitting zone, which is positioned around the outside of the light emitting zone; at least one organic light emitting diode formed on the light emitting zone; an encapsulation layer for sealing the organic light emitting diode; and a dam formed on the non-light emitting zone, wherein the encapsulation layer includes a structure in which at least one inorganic layer and at least one organic layer are alternatingly stacked, wherein the organic layer is made from a display sealing material composition, and wherein the display sealing material composition comprises a photo-curable monomer and a photopolymerization initiator. The photo-curable monomer comprises: a monomer not having an aromatic hydrocarbon group; and a monomer, represented by chemical formula 1, having at least two substituted or non-substituted phenyl groups, wherein the photo-curable monomer comprises approximately 5 wt.
    Type: Application
    Filed: May 2, 2016
    Publication date: March 29, 2018
    Inventors: Hye Jin KIM, Sung Min KO, Mi Sun KIM, Seong Ryong NAM, Ji Yeon LEE, Mi Jeong CHOI
  • Patent number: 9847510
    Abstract: Disclosed is an organic light emitting diode display apparatus including: a substrate; an organic light emitting diode disposed on the substrate; and an encapsulation layer encapsulating the organic light emitting diode. The encapsulation layer has a structure in which two or more inorganic layers and one or more organic layers are alternately stacked one above another, two adjacent inorganic layers at least partially contact each other, and the organic layers are formed of an encapsulating composition. The encapsulating composition includes: about 10 wt % to about 70 wt % of (A) a non-silicon-based di(meth)acrylate, about 20 wt % to about 70 wt % of (B) a silicon-based di(meth)acrylate, about 5 wt % to about 40 wt % of (C) a mono(meth)acrylate, and about 1 wt % to about 10 wt % of (D) an initiator, the (B) silicon-based di(meth)acrylate being represented by Formula 1.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: December 19, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Yeon Lee, Seong Ryong Nam, Sung Min Ko, Mi Sun Kim, Hye Jin Kim, Mi Jeong Choi
  • Patent number: 9837633
    Abstract: Disclosed is an organic light emitting diode display apparatus including: a substrate; an organic light emitting diode disposed on the substrate; and an encapsulation layer encapsulating the organic light emitting diode. The encapsulation layer has a structure in which two or more inorganic layers and one or more organic layers are alternately stacked one above another, each of the inorganic layers has a thickness of about 40 nm to about 1000 nm and an index of refraction of about 1.41 to about 2.0, each of the organic layers has a thickness of about 0.2 ?m to about 15 ?m and an index of refraction of about 1.4 to about 1.65, and the organic layers are formed of an encapsulating composition.
    Type: Grant
    Filed: April 8, 2016
    Date of Patent: December 5, 2017
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Ji Yeon Lee, Seong Ryong Nam, Sung Min Ko, Mi Sun Kim, Hye Jin Kim, Mi Jeong Choi
  • Publication number: 20160372704
    Abstract: Disclosed is an organic light emitting diode display apparatus including: a substrate; an organic light emitting diode disposed on the substrate; and an encapsulation layer encapsulating the organic light emitting diode. The encapsulation layer has a structure in which two or more inorganic layers and one or more organic layers are alternately stacked one above another, each of the inorganic layers has a thickness of about 40 nm to about 1000 nm and an index of refraction of about 1.41 to about 2.0, each of the organic layers has a thickness of about 0.2 ?m to about 15 ?m and an index of refraction of about 1.4 to about 1.65, and the organic layers are formed of an encapsulating composition.
    Type: Application
    Filed: April 8, 2016
    Publication date: December 22, 2016
    Inventors: Ji Yeon LEE, Seong Ryong NAM, Sung Min KO, Mi Sun KIM, Hye Jin KIM, Mi Jeong CHOI
  • Publication number: 20160372707
    Abstract: Disclosed is an organic light emitting diode display apparatus including: a substrate; an organic light emitting diode disposed on the substrate; and an encapsulation layer encapsulating the organic light emitting diode. The encapsulation layer has a structure in which two or more inorganic layers and one or more organic layers are alternately stacked one above another, two adjacent inorganic layers at least partially contact each other, and the organic layers are formed of an encapsulating composition. The encapsulating composition includes: about 10 wt % to about 70 wt % of (A) a non-silicon-based di(meth)acrylate, about 20 wt % to about 70 wt % of (B) a silicon-based di(meth)acrylate, about 5 wt % to about 40 wt % of (C) a mono(meth)acrylate, and about 1 wt % to about 10 wt % of (D) an initiator, the (B) silicon-based di(meth)acrylate being represented by Formula 1.
    Type: Application
    Filed: April 8, 2016
    Publication date: December 22, 2016
    Inventors: Ji Yeon LEE, Seong Ryong NAM, Sung Min KO, Mi Sun KIM, Hye Jin KIM, Mi Jeong CHOI