Patents by Inventor Boo-Kyung Kim
Boo-Kyung Kim 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: 10809419Abstract: The present invention relates to an antireflection film including: a hard coating layer in which center line average roughness (Ra) of the surface is 1.2 nm or less and surface energy is 34 mN/m or less; and a low refractive index layer which is formed on the hard coating layer.Type: GrantFiled: December 5, 2016Date of Patent: October 20, 2020Assignee: LG CHEM., LTD.Inventors: Seok Hoon Jang, Heon Kim, Boo Kyung Kim, Jin Seok Byun, Yeong Rae Chang
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Patent number: 10802178Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.Type: GrantFiled: January 3, 2019Date of Patent: October 13, 2020Assignee: LG CHEM, LTD.Inventors: In Young Song, Jin Seok Byun, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang, Sung Joon Oh
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Patent number: 10768342Abstract: An antireflection film including a low reflective index layer and a hard coating layer, the low reflective index layer including: a binder resin including a crosslinked polymer of a photopolymerizable compound and polysilsesquioxane having at least one reactive functional group substituted thereon; and inorganic fine particles dispersed in the binder resin, wherein a ratio of internal haze (Hi) to total haze (Ha) is 97% or less and a variation in color coordinate value (b*) before and after alkaline treatment is 0.7 or less.Type: GrantFiled: March 3, 2017Date of Patent: September 8, 2020Assignee: LG CHEM, LTD.Inventors: Boo Kyung Kim, Jin Seok Byun, In Young Song, Yeong Rae Chang, Seok Hoon Jang
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Publication number: 20200278479Abstract: The present invention relates to an anti-reflective film exhibiting one or more peaks (qmax) at a scattering vector of 0.0758 to 0.1256 nm?1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.Type: ApplicationFiled: March 11, 2020Publication date: September 3, 2020Applicant: LG CHEM, LTD.Inventors: Jin Seok BYUN, Jeong Kyu LEE, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG
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Publication number: 20200278478Abstract: The present invention relates to an anti-reflective film exhibiting one or more peaks (qmax) at a scattering vector of 0.0758 to 0.1256 nm?1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.Type: ApplicationFiled: March 11, 2020Publication date: September 3, 2020Applicant: LG CHEM, LTD.Inventors: Jin Seok BYUN, Jeong Kyu LEE, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG
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Publication number: 20200255623Abstract: A photopolymerizable composition including: a polymer matrix or a precursor thereof containing a reaction product of an acrylate-based polyol and a compound containing at least one isocyanate group; a photoreactive monomer; and a non-reactive fluoro compound and a photoinitiator; a hologram recording medium produced from the composition; an optical element including the hologram recording medium; and a method of recording a hologram using the photopolymerizable composition.Type: ApplicationFiled: October 16, 2018Publication date: August 13, 2020Inventors: Seok Hoon JANG, Heon KIM, Boo Kyung KIM, Yeong Rae CHANG, Yongjoon HEO, Se Hyun KWON
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Patent number: 10725210Abstract: An antireflection film including a low reflective index layer and a hard coating layer, the low reflective index layer including: a binder resin including a crosslinked polymer of a photopolymerizable compound and polysilsesquioxane having at least one reactive functional group substituted thereon; and inorganic fine particles dispersed in the binder resin, wherein a ratio of internal haze (Hi) to total haze (Ha) is 97% or less and a variation in color coordinate value (b*) before and after alkaline treatment is 0.7 or less.Type: GrantFiled: March 3, 2017Date of Patent: July 28, 2020Assignee: LG CHEM, LTD.Inventors: Boo Kyung Kim, Jin Seok Byun, In Young Song, Yeong Rae Chang, Seok Hoon Jang
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Patent number: 10711142Abstract: The present invention relates to an antireflection film which includes a hard coating layer and a low refractive index layer formed on the hard coating layer, wherein the sum of the volume of the convex portion of the peak equal to or higher than the average line is less than 0.03 mm3 in the surface area of 1.47 mm2, and the sum of the volume of the concave portion of the valley equal to or lower than the average line is less than 0.03 mm3 in the surface area of 1.47 mm2, and a display device comprising the antireflection film.Type: GrantFiled: February 10, 2017Date of Patent: July 14, 2020Assignee: LG CHEM, LTD.Inventors: Jung Hyun Seo, Boo Kyung Kim, Yeong Rae Chang, Jae Hoon Shim, Jin Young Park, Jae Pil Koo
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Publication number: 20200217991Abstract: Described herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin and hollow inorganic nanoparticles and solid inorganic nanoparticles dispersed in the binder resin. The hollow and solid inorganic particles are dispersed in the low-refractive layer such that the amount of the solid inorganic nanoparticles positioned close to an interface between the hard coating layer and the low-refractive layer is larger than that of the hollow inorganic nanoparticles. Also described is a manufacturing method of the anti-reflective film including: applying a resin composition containing a photopolymerizable compound or a (co)polymer thereof, a fluorine-containing compound including a photoreactive functional group, a photoinitiator, hollow inorganic nanoparticles, and solid inorganic nanoparticles on a hard coating layer, and drying the applied resin composition at a temperature of 35° C. to 100° C.; and photocuring the dried resin composition.Type: ApplicationFiled: March 16, 2020Publication date: July 9, 2020Applicant: LG CHEM, LTD.Inventors: Jin Seok BYUN, Heon KIM, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG
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Patent number: 10689523Abstract: The present invention relates to an antireflection film which includes a hard coating layer and a low refractive index layer formed on the hard coating layer, wherein a roughness kurtosis (Rku) of the concavo-convex shape of the surface is greater than 3.5 and less than 6, a Swedish height (H) of the concavo-convex shape of the surface is greater than 20 nm and less than 200 nm, and the light transmittance in a wavelength region of 380 nm to 780 nm is 94% or more, and a display device comprising the antireflection film.Type: GrantFiled: February 10, 2017Date of Patent: June 23, 2020Assignee: LG CHEM, LTD.Inventors: Jung Hyun Seo, Boo Kyung Kim, Yeong Rae Chang, Seok Hoon Jang
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Patent number: 10663623Abstract: Disclosed herein is an anti-reflective film comprising: a hard coating layer; and a low-refractive layer containing a binder resin and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein a ratio of an average particle diameter of the solid inorganic nanoparticles to an average particle diameter of the hollow inorganic nanoparticles is 0.26 to 0.Type: GrantFiled: January 23, 2019Date of Patent: May 26, 2020Assignee: LG CHEM, LTD.Inventors: Jin Seok Byun, Jae Young Kim, Yeong Rae Chang, Boo Kyung Kim, Seok Hoon Jang
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Publication number: 20200142100Abstract: The present invention relates to a low refractive layer and an anti-reflective film comprising the same. The low refractive layer can exhibit excellent optical properties such as a low reflectance and a high light transmittance, and excellent mechanical properties such as high wear resistance and scratch resistance at the same time. In particular, due to the excellent alkali resistance, the low refractive layer can maintain excellent physical properties even after alkali treatment. Therefore, when introducing a low refractive layer to the display device, it is expected that the production process can be simplified and further the production rate and the productivity can significantly increase.Type: ApplicationFiled: January 3, 2020Publication date: May 7, 2020Inventors: Boo Kyung KIM, Yeong Rae CHANG, Seok Hoon JANG, Jin Seok BYUN
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Patent number: 10627548Abstract: Described herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin and hollow inorganic nanoparticles and solid inorganic nanoparticles dispersed in the binder resin. The hollow and solid inorganic particles are dispersed in the low-refractive layer such that the amount of the solid inorganic nanoparticles positioned close to an interface between the hard coating layer and the low-refractive layer is larger than that of the hollow inorganic nanoparticles. Also described is a manufacturing method of the anti-reflective film including: applying a resin composition containing a photopolymerizable compound or a (co)polymer thereof, a fluorine-containing compound including a photoreactive functional group, a photoinitiator, hollow inorganic nanoparticles, and solid inorganic nanoparticles on a hard coating layer, and drying the applied resin composition at a temperature of 35° C. to 100° C.; and photocuring the dried resin composition.Type: GrantFiled: November 3, 2016Date of Patent: April 21, 2020Assignee: LG CHEM, LTD.Inventors: Jin Seok Byun, Heon Kim, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang
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Patent number: 10627547Abstract: The present invention relates to an anti-reflective film exhibiting one or more peaks at a scattering vector (qmax) of 0.0758 to 0.1256 nm?1, in a graph showing a log value of scattering intensity to a scattering vector defined in small-angle X-ray scattering.Type: GrantFiled: March 9, 2017Date of Patent: April 21, 2020Assignee: LG CHEM, LTD.Inventors: Jin Seok Byun, Jeong Kyu Lee, Boo Kyung Kim, Seok Hoon Jang, Yeong Rae Chang
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Patent number: 10605958Abstract: The present invention relates to a low refractive layer and an anti-reflective film comprising the same. The low refractive layer can exhibit excellent optical properties such as a low reflectance and a high light transmittance, and excellent mechanical properties such as high wear resistance and scratch resistance at the same time. In particular, due to the excellent alkali resistance, the low refractive layer can maintain excellent physical properties even after alkali treatment. Therefore, when introducing a low refractive layer to the display device, it is expected that the production process can be simplified and further the production rate and the productivity can significantly increase.Type: GrantFiled: August 18, 2016Date of Patent: March 31, 2020Assignee: LG Chem, Ltd.Inventors: Boo Kyung Kim, Yeong Rae Chang, Seok Hoon Jang, Jin Seok Byun
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Publication number: 20190339612Abstract: The present disclosure relates to a photopolymer composition including: a polymer matrix or a precursor thereof; a photoreactive monomer including a polyfunctional (meth)acrylate monomer having a refractive index of 1.5 or less and a viscosity at 25° C. of 100 cps or less, and a monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more; and a photoinitiator, wherein a content of the monofunctional (meth)acrylate monomer having a refractive index of 1.5 or more in the photoreactive monomer is 60 wt % or more. The present disclosure also relates to a hologram recording medium produced from the photopolymer composition, an optical element including the hologram recording medium, and a holographic recording method using the photopolymer composition.Type: ApplicationFiled: March 14, 2018Publication date: November 7, 2019Inventors: Boo Kyung KIM, Heon KIM, Seok Hoon JANG, Yeong Rae CHANG
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Publication number: 20190185592Abstract: The present invention relates to a photopolymer composition comprising: a polymer matrix or a precursor thereof including a reaction product of a polyol including a polyrotaxane compound and a compound containing at least one isocyanate group; a photoreactive monomer; and a photoinitiator. The present invention also relates to a hologram recording medium produced from the photopolymer composition, an optical element comprising the hologram recording medium, and a holographic recording method using the photopolymer composition.Type: ApplicationFiled: July 2, 2018Publication date: June 20, 2019Inventors: Heon KIM, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG
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Publication number: 20190170907Abstract: Disclosed herein is an anti-reflective film comprising: a hard coating layer; and a low-refractive layer containing a binder resin and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein a ratio of an average particle diameter of the solid inorganic nanoparticles to an average particle diameter of the hollow inorganic nanoparticles is 0.26 to 0.Type: ApplicationFiled: January 23, 2019Publication date: June 6, 2019Applicant: LG CHEM, LTD.Inventors: Jin Seok BYUN, Jae Young KIM, Yeong Rae CHANG, Boo Kyung KIM, Seok Hoon JANG
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Publication number: 20190137659Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.Type: ApplicationFiled: January 3, 2019Publication date: May 9, 2019Applicant: LG CHEM, LTD.Inventors: In Young SONG, Jin Seok BYUN, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG, Sung Joon OH
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Publication number: 20190137658Abstract: Disclosed herein is an anti-reflective film including: a hard coating layer; and a low-refractive layer containing a binder resin, and hollow inorganic nanoparticles and solid inorganic nanoparticles which are dispersed in the binder resin, wherein the low-refractive layer includes a first layer containing at least 70 vol % of the entire solid inorganic nanoparticles and a second layer containing at least 70 vol % of the entire hollow inorganic nanoparticles, and at the time of fitting polarization ellipticity measured by ellipsometry for the first layer or/and the second layer included in the low-refractive layer using a Cauchy model represented by the following General Equation 1, the second layer satisfies a predetermined condition.Type: ApplicationFiled: January 3, 2019Publication date: May 9, 2019Applicant: LG CHEM, LTD.Inventors: In Young SONG, Jin Seok BYUN, Boo Kyung KIM, Seok Hoon JANG, Yeong Rae CHANG, Sung Joon OH