Patents by Inventor Seungil Baek
Seungil Baek 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: 12060496Abstract: The present disclosure relates to an optical laminate for a flexible display device comprising: a support substrate layer; and a hard coating layer positioned on at least one surface of the support substrate layer and having a thickness of 10 ?m to 250 ?m, wherein the hard coating layer is a polysiloxane containing 70 mol % or more of a repeating unit including an epoxy group-containing functional group; and an elastomeric polymer including polycaprolactone polyol, and wherein the polysiloxane has a number average molecular weight of more than 3,000 and less than 10,000, and a polydispersity Index (PDI) of 1.0 or more and less than 5.0, and a flexible display device including the same.Type: GrantFiled: August 14, 2020Date of Patent: August 13, 2024Assignee: LG CHEM, LTD.Inventors: Eun Seon Lee, Seung Joon Lim, Ha Neul Kim, Seungil Baek, Se Jeong Kim, Myoungseok Cho, Yeongkyu Choi
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Publication number: 20240059056Abstract: The present invention relates to a cover window for a flexible display device of substrate-less type which simultaneously achieves a physical property balance between flexibility and high hardness even without a substrate film, particularly has almost no damage to the film even by repetitive bending or folding operation, and thus, can be easily applied to bendable, flexible, rollable, or foldable mobile devices, display devices, and the like, and a flexible display device including the same.Type: ApplicationFiled: October 7, 2022Publication date: February 22, 2024Applicant: LG CHEM, LTD.Inventors: Eun Seon LEE, Seung Joon LIM, Yoon Bin LIM, Seungil BAEK, Myoungseok CHO, Yeongkyu CHOI, Gieun PARK
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Publication number: 20230384834Abstract: The present disclosure relates to an optical laminate which hardly has a risk of damaging the film even in repetitive bending or folding operations, and thus can be easily applied to bendable, flexible, rollable or foldable mobile devices, display devices, and the like, to a cover window for flexible display device including the same, and to a flexible display device including the same.Type: ApplicationFiled: August 23, 2021Publication date: November 30, 2023Applicant: LG CHEM, LTD.Inventors: Gieun PARK, Eun Seon LEE, Seung Joon LIM, Yoon Bin LIM, Seungil BAEK, Se Jeong KIM, Myoungseok CHO, Yeongkyu CHOI
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Patent number: 11709294Abstract: The present disclosure provides an optical laminate which exhibits improved adhesive strength and scratch resistance together with excellent hardness and fingerprint resistance properties, by further including a fingerprint-resistant layer including an organosilane having excellent adhesion strength with the hard coating layer and an anti-fouling function on the hard coating layer including the transparent support substrate layer and the hard coating layer.Type: GrantFiled: November 23, 2020Date of Patent: July 25, 2023Assignee: LG CHEM, LTD.Inventors: Ha Neul Kim, Eun Seon Lee, Seungil Baek, Se Jeong Kim, Woo Han Kim, Yeongkyu Choi
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Publication number: 20220145129Abstract: The present disclosure relates to an optical laminate for a flexible display device comprising: a support substrate layer; and a hard coating layer positioned on at least one surface of the support substrate layer and having a thickness of 10 ?m to 250 ?m, wherein the hard coating layer is a polysiloxane containing 70 mol % or more of a repeating unit including an epoxy group-containing functional group; and an elastomeric polymer including polycaprolactone polyol, and wherein the polysiloxane has a number average molecular weight of more than 3,000 and less than 10,000, and a polydispersity Index (PDI) of 1.0 or more and less than 5.0, and a flexible display device including the same.Type: ApplicationFiled: August 14, 2020Publication date: May 12, 2022Applicant: LG CHEM, LTD.Inventors: Eun Seon LEE, Seung Joon LIM, Ha Neul KIM, Seungil BAEK, Se Jeong KIM, Myoungseok CHO, Yeongkyu CHOI
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Publication number: 20210245483Abstract: The present disclosure relates to a hard coating laminate having an internal bending property and an external bending property including: a supporting substrate layer containing a thermoplastic resin; and a hard coating layer having a thickness of 50 to 240 ?m, wherein the hard coating layer includes a cured product of a resin composition including a siloxane resin having a predetermined glycidoxypropyl modified silicone structure and an elastomeric polymer.Type: ApplicationFiled: October 25, 2019Publication date: August 12, 2021Applicant: LG CHEM, LTD.Inventors: Eun Seon LEE, Ha Neul KIM, Seungil BAEK, Woo Han KIM
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Publication number: 20210115210Abstract: Provided is a hard coating film exhibiting improved flexibility and curling properties together with excellent hardness property, the hard coating film including a top coating layer and a bottom coating layer each disposed on the top surface and the bottom surface of a support substrate layer, wherein the top coating layer includes a cured product of a first resin composition containing epoxy polysiloxane of the following Chemical Formula 1, and the bottom coating layer includes a cured product of a second resin composition containing epoxy polysiloxane of the following Chemical Formula 1 and an elastomer at a weight ratio of 95:5 to 60:40: (R1SiO3/2)a(R2SiO3/2)b(OR)c ??[Chemical Formula 1] wherein in Chemical Formula 1, R1, R2, R, a, b, and c are the same as defined in the specification.Type: ApplicationFiled: April 29, 2019Publication date: April 22, 2021Applicant: LG CHEM, LTD.Inventors: Seungil BAEK, Eun Seon LEE, Ha Neul KIM, Woo Han KIM
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Publication number: 20210072427Abstract: The present disclosure provides an optical laminate which exhibits improved adhesive strength and scratch resistance together with excellent hardness and fingerprint resistance properties, by further including a fingerprint-resistant layer including an organosilane having excellent adhesion strength with the hard coating layer and an anti-fouling function on the hard coating layer including the transparent support substrate layer and the hard coating layer.Type: ApplicationFiled: November 23, 2020Publication date: March 11, 2021Applicant: LG CHEM, LTD.Inventors: Ha Neul KIM, Eun Seon LEE, Seungil BAEK, Se Jeong KIM, Woo Han KIM, Yeongkyu CHOI
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Patent number: 10759966Abstract: The present disclosure relates to an optical laminate including: a supporting substrate layer; and a hard coating layer located on at least one surface of the supporting substrate layer and including a cured product of a hard coating composition, wherein the hard coating composition includes: a polysiloxane including 70 mol % or more of a structural unit containing a glycidyl group-containing functional group; an elastomer; and a reactive monomer containing at least one functional group capable of cross-linking with the polysiloxane, and the elastomer is contained in an amount of 5 to 80 parts by weight based on 100 parts by weight of the polysiloxane. The present disclosure also relates to a flexible display apparatus including the above optical laminate.Type: GrantFiled: July 15, 2019Date of Patent: September 1, 2020Assignee: LG CHEM, LTD.Inventors: Ha Neul Kim, Eun Seon Lee, Seungil Baek, Woo Han Kim