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公开(公告)号：US20160195641A1
公开(公告)日：2016-07-07
申请号：US14787436
申请日：2014-06-19
申请人： LG CHEM, LTD.
发明人： Se Woo Yang , Sung Hyun Nam , Kyun Il Rah , Yoon Tae Hwang , Jong Hyun Jung , Hye Min Yu , Ji Young Hwang , Eun Suk Park
CPC分类号： G02B1/08 , B29C55/005 , B29C55/02 , B29C55/023 , B29C55/04 , B29K2055/00 , B29K2075/00 , B29L2009/00 , B32B27/00 , B32B27/08 , B32B27/306 , B32B27/40 , B32B2250/02 , B32B2250/24 , B32B2255/10 , B32B2255/26 , B32B2307/42 , B32B2307/51 , B32B2307/536 , B32B2307/54 , B32B2307/5825 , B32B2307/732 , B32B2457/202 , B32B2551/00 , C08G18/4238 , C08G18/7671 , C08J5/18 , C08J2375/04 , C08J2375/06 , G02B5/3025 , G02B5/3033 , C08G18/10 , C08G18/3206
摘要： There are provided a substrate film, a laminate, and method of manufacturing a polarizing film. The present application provides a substrate film capable of effectively manufacturing a polarizing film having a thickness of about 10 μm or less, about 8 μm or less, about 7 μm or less, about 6 μm or less, or about 5 μm or less and having an excellent function such as polarization performance, a laminate, and a method of manufacturing the same. According to the invention, it is possible to prevent tearing, curling, or the like from occurring in the elongation process and manufacture a polarizing film by easily elongating a polarization material such as a PVA-based resin.
摘要翻译： 提供了基板膜，层叠体以及偏光膜的制造方法。 本申请提供了能够有效地制造厚度为约10μm以下，约8μm以下约7μm以下，约6μm以下或约5μm以下的偏振膜的基板膜， 优异的功能如极化性能，层压板及其制造方法。 根据本发明，可以防止在伸长过程中发生撕裂，卷曲等，并且通过容易地拉伸诸如PVA类树脂的偏振材料来制造偏振膜。
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公开(公告)号：US11314006B2
公开(公告)日：2022-04-26
申请号：US16137293
申请日：2018-09-20
申请人： LG CHEM, LTD.
发明人： Ji Young Kim , Ji Young Kim , Hye Min Yu , Kyun Il Rah , Jin Yong Park , Eungki Lee , Taek Geun Nam
IPC分类号： B32B27/32 , G02B5/30 , B32B7/12 , B32B27/08 , B32B27/26 , B32B27/30 , G02B1/14 , G02B1/08 , B32B27/00
摘要： The present specification relates to a method for manufacturing a polarizer and a polarizer manufactured by using the same, and more particularly, to a method for manufacturing a polarizer, which includes a cross-linking and elongating step using an aqueous solution including a polyvalent carboxylic acid compound and a boric acid compound, and a polarizer manufactured by using the same.
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公开(公告)号：US11022845B2
公开(公告)日：2021-06-01
申请号：US16758369
申请日：2019-06-04
申请人： LG CHEM, LTD.
发明人： Nayoung Shin , Junwon Chang , Moon Soo Park , Kyun Il Rah
IPC分类号： G02F1/13363 , G02F1/1335 , G02F1/1337
摘要： This application relates to a laminate which comprises: a first polarization rotation layer; a second polarization rotation layer; and a positive C plate provided between the first polarization rotation layer and the second polarization rotation layer, the first polarization rotation layer comprises a first half wave plate and a first quarter wave plate, and the second polarization rotation layer comprises a second half wave plate and a second quarter wave plate and a liquid crystal display comprising the same.
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公开(公告)号：US11009643B2
公开(公告)日：2021-05-18
申请号：US16971648
申请日：2019-06-03
申请人： LG CHEM, LTD.
发明人： Junwon Chang , Nayoung Shin , Moon Soo Park , Kyun Il Rah
IPC分类号： G02F1/1335 , G02B5/30 , G02F1/13363
摘要： This application relates to a laminate comprising: a first half wave plate; a second half wave plate; and a positive C plate provided between the first half wave plate and the second half wave plate and a liquid crystal display comprising the same.
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公开(公告)号：US10928572B2
公开(公告)日：2021-02-23
申请号：US15103614
申请日：2015-06-24
申请人： LG CHEM, LTD.
发明人： Byung Sun Lee , Sung Hyun Nam , Kyun Il Rah
IPC分类号： G02B5/30 , B29D11/00 , B32B7/06 , B32B27/08 , B32B27/28 , B32B27/30 , B32B27/32 , B32B27/36 , B32B27/40 , G02F1/1335 , G02B1/14 , B32B7/12 , G02B1/11 , B29K629/00
摘要： The present specification relates to a method for manufacturing a polarizing plate and a polarizing plate. More particularly, the present specification relates to a method for manufacturing a polarizing plate locally having a depolarization region, and a polarizing plate.
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公开(公告)号：US10479870B2
公开(公告)日：2019-11-19
申请号：US15572685
申请日：2016-06-03
申请人： LG CHEM, LTD.
发明人： Ji Young Kim , Ji Young Kim , Hye Min Yu , Kyun Il Rah , Jin Yong Park , Eungki Lee , Taek Geun Nam
IPC分类号： C08J3/24 , G02B5/30 , B29D11/00 , B32B27/08 , B32B27/30 , D06P3/58 , D06P7/00 , D06P1/653 , D06P1/673 , G02B1/14 , B29K29/00 , G02F1/1335 , D06P1/00
摘要： The present specification relates to a method for manufacturing a polarizer, the method including: a step of dyeing at least one dye of iodine and dichroic dyes on a polyvinyl alcohol-based film; a first cross-linking step of cross-linking the polyvinyl alcohol-based film and the dye by using a first aqueous solution including a polyvalent carboxylic acid compound and a boron compound; a second cross-linking step of cross-linking the polyvinyl alcohol-based film and the dye by using a second aqueous solution including a polyvalent carboxylic acid compound and a boron compound; and a third cross-linking step of cross-linking the polyvinyl alcohol-based film and the dye by using a third aqueous solution including a polyvalent carboxylic acid compound, in which in the first cross-linking step and the second cross-linking step, stretching is performed along with cross-linking, and a polarizer manufactured by using the same.
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公开(公告)号：US10429560B2
公开(公告)日：2019-10-01
申请号：US15100420
申请日：2015-03-25
申请人： LG CHEM, LTD.
发明人： Beom Seok Lee , Eung Jin Jang , Kyun Il Rah , Hyung Koo Kang , Byung Sun Lee , Du Jin Choi , Ho Jeong Yun
IPC分类号： B29D11/00 , B23K26/38 , B23K26/402 , B23K103/00 , B29K29/00 , G02B5/30 , G02B1/10 , G02B1/14
摘要： The present invention relates to a method for manufacturing a polarizing element including locally bleached areas including steps of providing a polarizing element including a polyvinyl alcohol-based polarizer in which at least one of iodine and dichroic dye is oriented in a certain direction; forming a mask layer including at least one punched area on one surface of the polarizing element; partially bleaching the polarizing element formed with the mask layer by immersing the polarizing element into a bleaching solution; and correcting an appearance of the partially bleached polarizing element.
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公开(公告)号：US10302833B2
公开(公告)日：2019-05-28
申请号：US15547034
申请日：2016-02-01
申请人： LG CHEM, LTD.
发明人： Sung Hyun Nam , Kyung Ki Hong , Eung Jin Jang , Yeong Rae Chang , Heon Kim , Kyun Il Rah , Jong Hyun Jung , Byung Sun Lee , Hong Jun Choi , Moon Soo Park , Sun Kug Kim
IPC分类号： G02F1/1335 , G02B5/30
摘要： The present application relates to a polarizer, a polarizing plate and a display device. The present application can provide a polarizer or a polarizing plate that is applied to various types of display devices, particularly to a display device having a highly reflective liquid crystal panel and that shows excellent characteristics. In addition, the present application can provide a display device including the polarizer or the polarizing plate.
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公开(公告)号：US10105919B2
公开(公告)日：2018-10-23
申请号：US15039291
申请日：2015-09-25
申请人： LG CHEM, LTD.
发明人： Sung Hyun Nam , Jonghyun Jung , Kyun Il Rah , Hye Min Yu
摘要： The present invention relates to a method for manufacturing a thin polarizer, the method including: a step of preparing an unstretched polyvinyl alcohol-based film having a thickness of 20 μm or less, in which a strength applied to stretch the film by 6 times is 4 N or more; and a single stretching step of forming a stretched polyvinyl alcohol-based film having a thickness of 10 μm or less by stretching the unstretched polyvinyl alcohol-based film solely, and a thin polarizer manufactured by using the same.
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公开(公告)号：US09733511B2
公开(公告)日：2017-08-15
申请号：US14219952
申请日：2014-03-19
申请人： LG CHEM, LTD.
发明人： Eun Soo Huh , Ki Ok Kwon , In Ho Hwang , Kyun Il Rah , Min Ki Lee , Sae Han Cho
IPC分类号： G02F1/1335 , G02B5/30
CPC分类号： G02F1/133528 , G02B5/3025 , G02F2201/50 , Y10T428/1041 , Y10T428/1073 , Y10T428/1077
摘要： 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.
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