公开(公告)号：US12130456B2

公开(公告)日：2024-10-29

申请号：US17599967

申请日：2020-01-31

申请人： LG CHEM, LTD.

发明人： Na Young Shin ,  Kyun Il Rah ,  Jin Seok Byun ,  Yeong Rae Chang

IPC分类号： G02B5/20 ,  B32B7/12 ,  B32B23/08 ,  B32B23/20 ,  B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  C08J5/18 ,  G02B1/08 ,  G02B5/26 ,  G02B5/30

CPC分类号： G02B5/208 ,  B32B7/12 ,  B32B23/08 ,  B32B23/20 ,  B32B27/08 ,  B32B27/306 ,  B32B27/32 ,  C08J5/18 ,  G02B1/08 ,  G02B5/26 ,  G02B5/3025 ,  B32B2307/4026 ,  B32B2307/42 ,  B32B2307/514 ,  B32B2307/732 ,  C08J2301/12 ,  C08J2329/04 ,  C08J2347/00 ,  C08J2365/00

摘要： An optical laminate that does not cause a so-called reddening phenomenon even when driven or maintained under extremely harsh conditions (e.g., very high temperature conditions), or a reddening-resistant layer applied thereto.

公开(公告)号：US11623420B2

公开(公告)日：2023-04-11

申请号：US17260454

申请日：2019-08-22

申请人： LG CHEM, LTD.

发明人： Byung Sun Lee ,  Kyun Il Rah

IPC分类号： B29D11/00 ,  B32B3/10 ,  B32B37/12 ,  B32B37/26 ,  B32B38/10 ,  B32B7/023 ,  B32B7/12 ,  B32B27/20 ,  B32B27/30 ,  B32B38/04 ,  G02B5/30

摘要： The present specification relates to a method for manufacturing a polarizing plate using a mask film used for manufacturing a polarizing plate having a locally bleached area, and a polarizing plate manufactured using the same.

公开(公告)号：US11092729B2

公开(公告)日：2021-08-17

申请号：US16638431

申请日：2018-11-13

申请人： LG CHEM, LTD.

发明人： Byung Sun Lee ,  Kyun Il Rah

IPC分类号： G02F1/1335 ,  G02B5/30 ,  G02B1/14

摘要： The present application relates to a stacked polarizing plate comprising: a polyvinyl alcohol-based polarizer having one or more of iodine and a dichroic dye; and a film provided on one surface of the polyvinyl alcohol-based polarizing plate and comprising a lyotropic liquid crystal compound which absorbs light having a wavelength of 380 nm to 780 nm, and a liquid crystal display device comprising the same.

公开(公告)号：US20210088854A1

公开(公告)日：2021-03-25

申请号：US16633747

申请日：2018-12-26

申请人： LG CHEM, LTD.

发明人： Nayoung Shin ,  Junwon Chang ,  Moon Soo Park ,  Kyun Il Rah ,  Sun Kug Kim

IPC分类号： G02F1/13363 ,  G02F1/1335

摘要： The present application relates to a liquid crystal display comprising: an upper polarizer; a lower polarizer; and a liquid crystal panel provided between the upper polarizer and the lower polarizer, in which the upper polarizer and the lower polarizer are provided such that the absorption axes thereof are parallel to each other, a wavelength plate is comprised between the upper polarizer and the liquid crystal panel which rotates linear polarized light at 85 to 90 degrees, and the liquid crystal panel is a horizontally aligned liquid crystal mode.

公开(公告)号：US10201943B2

公开(公告)日：2019-02-12

申请号：US15025163

申请日：2014-09-26

申请人： LG CHEM, LTD.

发明人： Byung Sun Lee ,  Sung Hyun Nam ,  Kyun Il Rah

IPC分类号： B29D11/00 ,  B05D3/04 ,  B05D3/06 ,  B05D3/10 ,  B05D7/04 ,  B29C55/00 ,  B29C55/04 ,  G02B5/30 ,  B29K105/00 ,  B29K29/00 ,  B29L11/00

摘要： The present invention relates to a method for manufacturing a polarizing plate, the method comprising the sequential steps of: preparing a polarizing element comprising a polyvinyl alcohol-based polarizer dyed with any one or more of iodine and a dichroic dye; irradiating the polarizing element with light having a specific wavelength selected from a wavelength range of 200 nm to 800 nm; and moistening the polarizing element, and to a polarizing plate manufactured by the method.

公开(公告)号：US20180194121A1

公开(公告)日：2018-07-12

申请号：US15740106

申请日：2016-07-01

申请人： LG Chem, Ltd.

发明人： Se Woo Yang ,  Sung Hyun Nam ,  Kyun Il Rah

IPC分类号： B32B27/40 ,  C08L75/04 ,  C08G18/42 ,  B05D5/06

CPC分类号： B32B27/40 ,  B05D5/061 ,  C08G18/4202 ,  C08G18/4238 ,  C08G18/7607 ,  C08G18/7621 ,  C08G18/7671 ,  C08J5/18 ,  C08K3/26 ,  C08K3/346 ,  C08K2003/265 ,  C08L75/04 ,  C08L2203/16 ,  G02B1/08 ,  G02B1/14 ,  G02B5/30 ,  G02F1/1335 ,  C08G18/12 ,  C08G18/3206

摘要： The present application relates to a method for preparing a base film, a laminate or a polarizing film. The present application can provide an elongatable base film which simultaneously maintains elongation and recovery rates at proper levels and guarantees water resistance, and thus can be effectively applied in the preparation of, for example, a polarizing film. The present application can also provide a laminate using the film or a method for preparing a polarizing film using the base film. The base film can be effectively applied in the preparation of a polarizing film having an excellent function, such as polarization performance, while having a thickness of, for example, 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.

公开(公告)号：US20140204317A1

公开(公告)日：2014-07-24

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.

公开(公告)号：US12085743B2

公开(公告)日：2024-09-10

申请号：US16978581

申请日：2019-04-26

申请人： LG CHEM, LTD.

发明人： Jung Hyun Seo ,  Kyun Il Rah ,  Young Gon Kim ,  Taek Geun Nam ,  Gae Sung Kim ,  Hyun Soo Lee ,  Keon Woo Kim

IPC分类号： G02B5/30 ,  G02B1/11 ,  G02B1/14 ,  G02F1/1335

CPC分类号： G02B5/3041 ,  G02B1/11 ,  G02B1/14 ,  G02F1/133528 ,  G02F1/133531

摘要： The present invention relates to a polarizing plate, a liquid crystal panel and a display device, and more specifically to a polarizing plate including a polarizer, and a hard coating layer having a thickness of 10 μm or less and a light-transmitting substrate which are positioned so as to face each other on the basis of the polarizer, and to a liquid crystal panel and a display device including the same.

公开(公告)号：US11428990B2

公开(公告)日：2022-08-30

申请号：US16633747

申请日：2018-12-26

申请人： LG CHEM, LTD.

发明人： Nayoung Shin ,  Junwon Chang ,  Moon Soo Park ,  Kyun Il Rah ,  Sun Kug Kim

IPC分类号： G02F1/13363 ,  G02F1/1335 ,  G02F1/1343

摘要： The present application relates to a liquid crystal display comprising: an upper polarizer; a lower polarizer; and a liquid crystal panel provided between the upper polarizer and the lower polarizer, in which the upper polarizer and the lower polarizer are provided such that the absorption axes thereof are parallel to each other, a wavelength plate is comprised between the upper polarizer and the liquid crystal panel which rotates linear polarized light at 85 to 90 degrees, and the liquid crystal panel is a horizontally aligned liquid crystal mode.

公开(公告)号：US20210048715A1

公开(公告)日：2021-02-18

申请号：US16965587

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

摘要： This application relates to a liquid crystal display which comprises: an upper polarizer; a lower polarizer; and a liquid crystal panel provided between the upper polarizer and the lower polarizer, in which the upper polarizer and the lower polarizer are provided so that absorption axes of the upper and lower polarizers are parallel to each other, a first half wave plate, a positive C plate, and a second half wave plate are sequentially comprised between the upper polarizer and the liquid crystal panel, and the liquid crystal panel is a vertical alignment liquid crystal mode.