Patents by Inventor Ki-Ok Kwon
Ki-Ok Kwon 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: 10054726Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate, which is lightweight and has a thin thickness and excellent physical properties including durability, water resistance, workability, pressure-sensitive adhesion and a light leakage prevention effect; and the liquid crystal display device including the same are provided.Type: GrantFiled: February 28, 2011Date of Patent: August 21, 2018Assignee: LG Chem, Ltd.Inventors: In Kyu Park, Ki Ok Kwon, No Ma Kim, In Ho Hwang, Sung Hyun Nam, Sung Soo Yoon, Kyun Il Rah, Min Ki Lee
-
Patent number: 10030181Abstract: Provided are a modified polyvinyl alcohol-based resin with an acrylic group introduced thereto and including a hydroxyl group formed during the introduction of the acrylic group, an adhesive including the modified polyvinyl alcohol-based resin having excellent adhesion, humidity resistance, and water resistance, an adhesive including a polyvinyl alcohol-based resin, and a compound having an epoxy group, and an acrylic group, a polarizing plate and an image display device including the adhesive. The adhesive for a polarizing plate according to an embodiment of the present invention has excellent adhesion, humidity resistance, and water resistance as well as having excellent solubility with respect to water and an increase in adhesion while physical properties of a typical polyvinyl alcohol-based resin are maintained.Type: GrantFiled: January 13, 2016Date of Patent: July 24, 2018Assignee: LG CHEM, LTD.Inventors: Seong-Jun Park, Ki-Ok Kwon, Kyun-Il Rah
-
Patent number: 9791608Abstract: The present invention relates to a polarizing plate and a liquid crystal display device. In the present invention, the polarizing plate is lightweight and has a small thickness and excellent properties including durability, water resistance, workability, pressure-sensitive adhesion and light leakage prevention ability; and the liquid crystal display device including the same are provided.Type: GrantFiled: February 28, 2011Date of Patent: October 17, 2017Assignee: LG Chem, Ltd.Inventors: In Ho Hwang, Ki Ok Kwon, No Ma Kim, Sung Hyun Nam, In Kyu Park, Sung Soo Yoon, Kyun Il Rah, Min Ki Lee
-
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
-
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
-
Patent number: 9405049Abstract: The present invention relates to a polarizing plate and a liquid crystal display device. The polarizing plate, which is lightweight and has a small thickness and excellent physical properties including durability, water resistance, workability, pressure-sensitive adhesion and a light leakage prevention effect; and the liquid crystal display device including the same may be provided.Type: GrantFiled: February 28, 2011Date of Patent: August 2, 2016Assignee: LG CHEM, LTD.Inventors: Sung Soo Yoon, Ki Ok Kwon, No Ma Kim, In Ho Hwang, Sung Hyun Nam, In Kyu Park, Kyun Il Rah, Min Ki Lee
-
Publication number: 20160130483Abstract: Provided are a modified polyvinyl alcohol-based resin with an acrylic group introduced thereto and including a hydroxyl group formed during the introduction of the acrylic group, an adhesive including the modified polyvinyl alcohol-based resin having excellent adhesion, humidity resistance, and water resistance, an adhesive including a polyvinyl alcohol-based resin, and a compound having an epoxy group, and an acrylic group, a polarizing plate and an image display device including the adhesive. The adhesive for a polarizing plate according to an embodiment of the present invention has excellent adhesion, humidity resistance, and water resistance as well as having excellent solubility with respect to water and an increase in adhesion while physical properties of a typical polyvinyl alcohol-based resin are maintained.Type: ApplicationFiled: January 13, 2016Publication date: May 12, 2016Inventors: Seong-Jun Park, Ki-Ok Kwon, Kyun-Il Rah
-
Patent number: 9304238Abstract: A polarizing plate, a fabrication method thereof, and a display device using the same are provided. The polarizing plate includes a polarizing element, a first adhesive layer formed on one surface of the polarizing element, a second adhesive layer formed on the other surface of the polarizing element, a protective film attached to an upper portion of the first adhesive layer, a bonding layer attached to a lower portion of the second adhesive layer, and a luminance enhancement film attached to the bonding layer.Type: GrantFiled: April 4, 2014Date of Patent: April 5, 2016Assignee: LG CHEM, LTD.Inventors: Sung-Hyun Nam, Ki-Ok Kwon, Kyun-Il Rah
-
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
-
Patent number: 9146417Abstract: 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 of 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: September 29, 2015Assignee: LG CHEM, LTD.Inventors: Eun Soo Huh, Ki Ok Kwon, Eun Mi Seo, No Ma Kim, In Ho Hwang, Sung Soo Yoon
-
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
-
Publication number: 20140220263Abstract: A polarizing plate, a fabrication method thereof, and a display device using the same are provided. The polarizing plate includes a polarizing element, a first adhesive layer formed on one surface of the polarizing element, a second adhesive layer formed on the other surface of the polarizing element, a protective film attached to an upper portion of the first adhesive layer, a bonding layer attached to a lower portion of the second adhesive layer, and a luminance enhancement film attached to the bonding layer.Type: ApplicationFiled: April 4, 2014Publication date: August 7, 2014Applicant: LG CHEM, LTDInventors: Sung-Hyun NAM, Ki-Ok KWON, Kyun-Il RAH
-
Patent number: 8792164Abstract: A polarizing plate, a fabrication method thereof, and a display device using the same are provided. The polarizing plate includes a polarizing element, a first adhesive layer formed on one surface of the polarizing element, a second adhesive layer formed on the other surface of the polarizing element, a protective film attached to an upper portion of the first adhesive layer, a bonding layer attached to a lower portion of the second adhesive layer, and a luminance enhancement film attached to the bonding layer.Type: GrantFiled: February 9, 2012Date of Patent: July 29, 2014Assignee: LG Chem, Ltd.Inventors: Sung-Hyun Nam, Ki-Ok Kwon
-
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
-
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
-
Publication number: 20140160406Abstract: 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 of 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 12, 2014Applicant: LG CHEM, LTD.Inventors: Eun Soo Huh, Ki Ok Kwon, Eun Mi Seo, No Ma Kim, In Ho Hwang, Sung Soo Yoon
-
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
-
Patent number: 8609764Abstract: There is provided a method of producing a polyvinyl alcohol (PVA) film polarizer having an excellent durability, the method comprising dyeing, cross-linking, stretching, and drying, wherein additives containing phosphorus is inputted into one or more of the dyeing, the cross-linking, and the stretching. In this case, the additives containing phosphorus may be selected from a group consisting of a phosphoric acid, potassium phosphate monobasic, potassium phosphate dibasic, magnesium phosphate dibasic, sodium phosphate monobasic, and ammonium phosphate monobasic. An amount of the additives containing phosphorus in an added solution may be 0.01 to 15 wt %. As described above, when inputting the additives containing phosphorus while producing a polarizer, cross-linking between iodine and a polymer matrix becomes strong due to the phosphorus contained in the additives, thereby producing a polarizer having an excellent durability, and particularly, an excellent thermal stability.Type: GrantFiled: February 4, 2008Date of Patent: December 17, 2013Assignee: LG Chem, Ltd.Inventors: Seung Ae Kim, Ki Ok Kwon, Kyun Il Rah
-
Publication number: 20120320317Abstract: The present invention relates to a polarizing plate and a liquid crystal display device. The polarizing plate, which is lightweight and has a small thickness and excellent physical properties including durability, water resistance, workability, pressure-sensitive adhesion and a light leakage prevention effect; and the liquid crystal display device including the same may be provided.Type: ApplicationFiled: February 28, 2011Publication date: December 20, 2012Inventors: Sung Soo Yoon, Ki Ok Kwon, No Ma Kim, In Ho Hwang, Sung Hyun Nam, In Kyu Park, Kyun Il Rah, Min Ki Lee
-
Publication number: 20120314161Abstract: Provided are a polarizing plate and a liquid crystal display device. The polarizing plate, which is lightweight and has a thin thickness and excellent physical properties including durability, water resistance, workability, pressure-sensitive adhesion and a light leakage prevention effect; and the liquid crystal display device including the same are provided.Type: ApplicationFiled: February 28, 2011Publication date: December 13, 2012Inventors: In Kyu Park, Ki Ok Kwon, No Ma Kim, In Ho Hwang, Sung Hyun Nam, Sung Soo Yoon, Kyun Il Rah, Min Ki Lee