Patents by Inventor Sae-Han Cho
Sae-Han Cho 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: 9733511Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as water resistance, workability, durability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring at the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.Type: GrantFiled: March 19, 2014Date of Patent: August 15, 2017Assignee: LG CHEM, LTD.Inventors: Eun Soo Huh, Ki Ok Kwon, In Ho Hwang, Kyun Il Rah, Min Ki Lee, Sae Han Cho
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Patent number: 9703138Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as water resistance, workability, durability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring at the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.Type: GrantFiled: February 14, 2014Date of Patent: July 11, 2017Assignee: LG CHEM, LTD.Inventors: Eun Soo Huh, Ki Ok Kwon, In Ho Hwang, Kyun Il Rah, Min Ki Lee, Sae Han Cho
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Patent number: 9256005Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as durability, water resistance, workability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring in the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.Type: GrantFiled: February 18, 2014Date of Patent: February 9, 2016Assignee: LG CHEM, LTD.Inventors: Eun Soo Huh, Ki Ok Kwon, In Kyu Park, Sung Soo Yoon, Min Ki Lee, Sae Han Cho
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Patent number: 9250358Abstract: Provided are an adhesive for a polarizing plate and a polarizing plate comprising the same, and more particularly, an adhesive composition for a polarizing plate comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator, as well as a polarizing plate comprising a polarizer, a polymer film adhered to one side or both sides of the polarizer, and an adhesive layer for bonding the polarizer and the polymer film, in which the adhesive layer is formed of an adhesive composition comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator.Type: GrantFiled: June 23, 2014Date of Patent: February 2, 2016Assignee: LG Chem, Ltd.Inventors: Sae-Han Cho, Eun-Mi Seo, Boong-Goon Jeong, Kyun-Il Rah, Nam-Jeong Lee
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Publication number: 20140302328Abstract: Provided are an adhesive for a polarizing plate and a polarizing plate comprising the same, and more particularly, an adhesive composition for a polarizing plate comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator, as well as a polarizing plate comprising a polarizer, a polymer film adhered to one side or both sides of the polarizer, and an adhesive layer for bonding the polarizer and the polymer film, in which the adhesive layer is formed of an adhesive composition comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator.Type: ApplicationFiled: June 23, 2014Publication date: October 9, 2014Inventors: Sae-Han CHO, Eun-Mi SEO, Boong-Goon JEONG, Kyun-Il RAH, Nam-Jeong LEE
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Publication number: 20140240647Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as durability, water resistance, workability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring in the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.Type: ApplicationFiled: February 25, 2014Publication date: August 28, 2014Applicant: LG CHEM, LTD.Inventors: Eun Soo HUH, Ki Ok KWON, In Kyu PARK, Sung Soo YOON, Min Ki LEE, Sae Han CHO
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Publication number: 20140204317Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as water resistance, workability, durability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring at the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.Type: ApplicationFiled: March 19, 2014Publication date: July 24, 2014Applicant: LG CHEM, LTD.Inventors: Eun Soo Huh, Ki Ok Kwon, In Ho Hwang, Kyun Il Rah, Min Ki Lee, Sae Han Cho
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Publication number: 20140168580Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as durability, water resistance, workability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring in the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.Type: ApplicationFiled: February 18, 2014Publication date: June 19, 2014Applicant: LG CHEM, LTD.Inventors: Eun Soo HUH, Ki Ok KWON, In Kyu PARK, Sung Soo YOON, Min Ki LEE, Sae Han CHO
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Publication number: 20140160405Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate has lighter weight, a smaller thickness, and excellent physical properties such as water resistance, workability, durability, and light leakage preventing ability. In addition, the polarizing plate prevents curling occurring at the polarizing plate or a polarizer in formation thereof, and has excellent thermal resistance or thermal shock resistance.Type: ApplicationFiled: February 14, 2014Publication date: June 12, 2014Applicant: LG CHEM, LTD.Inventors: Eun Soo Huh, Ki Ok Kwon, In Ho Hwang, Kyun II Rah, Min Ki Lee, Sae Han Cho
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Patent number: 8613986Abstract: The present invention relates to an optical film comprising an aromatic based unit including 5 to 10,000 of units represented by Formula 6; a (meth)acrylate-based unit which is a copolymer of a (meth)acrylate derivative and maleimide; and a styrene-based unit which is a copolymer of a styrene derivative and maleimide, and a polarizing plate.Type: GrantFiled: September 5, 2012Date of Patent: December 24, 2013Assignee: LG Chem, Ltd.Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
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Publication number: 20130244041Abstract: Provided are an adhesive for a polarizing plate and a polarizing plate comprising the same, and more particularly, an adhesive composition for a polarizing plate comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator, as well as a polarizing plate comprising a polarizer, a polymer film adhered to one side or both sides of the polarizer, and an adhesive layer for bonding the polarizer and the polymer film, in which the adhesive layer is formed of an adhesive composition comprising one or more acrylic monomers having a hydrophilic group, a radical polymerization initiator, an epoxy resin, and a cationic photopolymerization initiator.Type: ApplicationFiled: September 20, 2011Publication date: September 19, 2013Applicant: LG CHEM. LTD.Inventors: Sae-Han Cho, Eun-Mi Seo, Boong-Goon Jeong, Kyun-Il Rah, Nam-Jeong Lee
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Publication number: 20130235456Abstract: The present invention relates to an optical film comprising an aromatic based unit including 5 to 10,000 of units represented by Formula 6; a (meth)acrylate-based unit which is a copolymer of a (meth)acrylate derivative and maleimide; and a styrene-based unit which is a copolymer of a styrene derivative and maleimide, and a polarizing plate.Type: ApplicationFiled: September 5, 2012Publication date: September 12, 2013Applicant: LG CHEM, LTD.Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
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Patent number: 8344083Abstract: The present invention relates to a transparent resin composition which comprises (a) a (meth)acrylate based unit comprising one or more (meth)acrylate based derivatives; (b) an aromatic based unit having a chain having the hydroxy group containing portion and an aromatic moiety and (c) a styrene-based unit comprising one or more styrene-based derivatives, and an optical film that is formed by using the same.Type: GrantFiled: May 4, 2009Date of Patent: January 1, 2013Assignee: LG Chem, Ltd.Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
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Patent number: 8243239Abstract: The present invention relates to an in-plane switching (IPS) mode liquid crystal display. More particularly, the IPS mode liquid crystal display according to the present invention comprises 1) a first polarizing plate; 2) a liquid crystal cell; 3) a retardation film comprising a positive biaxial acryl-based film and a negative C plate; and 4) a second polarizing plate. Accordingly, a contrast property can be improved at a front side of the IPS mode liquid crystal display and at an inclining angle.Type: GrantFiled: August 26, 2009Date of Patent: August 14, 2012Assignee: LG Chem, Ltd.Inventors: Jeong-Min Choi, Min-Hee Lee, Sae-Han Cho
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Patent number: 7875328Abstract: The present invention relates to an optical film comprising an aromatic based unit having chain having the hydroxy group containing portion and aromatic moiety; and a styrene-based unit comprising one or more styrene-based derivatives, and has absolute values of in-plane retardation (Rin) and thickness retardation (Rin) of 10 nm or less regardless of stretching, and a polarizing plate and an information technology apparatus including the same.Type: GrantFiled: May 4, 2009Date of Patent: January 25, 2011Assignee: LG Chem, Ltd.Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
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Publication number: 20100311910Abstract: The present invention relates to an optical film comprising an aromatic based unit having chain having the hydroxy group containing portion and aromatic moiety; and a styrene-based unit comprising one or more styrene-based derivatives, and has absolute values of in-plane retardation (Rin) and thickness retardation (Rth) of 10 nm or less regardless of stretching, and a polarizing plate and an information technology apparatus including the same.Type: ApplicationFiled: August 17, 2010Publication date: December 9, 2010Applicant: LG CHEM, LTD.Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
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Publication number: 20100053508Abstract: The present invention relates to an in-plane switching (IPS) mode liquid crystal display. More particularly, the IPS mode liquid crystal display according to the present invention comprises 1) a first polarizing plate; 2) a liquid crystal cell; 3) a retardation film comprising a positive biaxial acryl-based film and a negative C plate; and 4) a second polarizing plate. Accordingly, a contrast property can be improved at a front side of the IPS mode liquid crystal display and at an inclining angle.Type: ApplicationFiled: August 26, 2009Publication date: March 4, 2010Inventors: Jeong-Min Choi, Min-Hee Lee, Sae-Han Cho
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Publication number: 20090275718Abstract: The present invention relates to a transparent resin composition which comprises (a) a (meth)acrylate based unit comprising one or more (meth)acrylate based derivatives; (b) an aromatic based unit having a chain having the hydroxy group containing portion and an aromatic moiety and (c) a styrene-based unit comprising one or more styrene-based derivatives, and an optical film that is formed by using the same.Type: ApplicationFiled: May 4, 2009Publication date: November 5, 2009Applicant: LG Chem, Ltd.Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho
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Publication number: 20090273838Abstract: The present invention relates to an optical film comprising an aromatic based unit having chain having the hydroxy group containing portion and aromatic moiety; and a styrene-based unit comprising one or more styrene-based derivatives, and has absolute values of in-plane retardation (Rin) and thickness retardation (Rin) of 10 nm or less regardless of stretching, and a polarizing plate and an information technology apparatus including the same.Type: ApplicationFiled: May 4, 2009Publication date: November 5, 2009Applicant: LG Chem, Ltd.Inventors: Jun-Geun Um, Min-Hee Lee, Nam-Jeong Lee, Jong-Hun Lee, Dong-Ryul Kim, Sae-Han Cho