公开(公告)号：US11726248B2

公开(公告)日：2023-08-15

申请号：US17831282

申请日：2022-06-02

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jun Mo Koo ,  Jung Hun You ,  Sang Hum Lee ,  Bong Choon Kim ,  Yoon Jung Kim ,  Ri Ra Jung ,  Kyu Sik Kim ,  Kwang Ho Shin ,  Han Mam Jeong ,  Eun Su Park

IPC: G02F1/1335 ,  G02B5/30

CPC classification number: G02B5/3083 ,  G02F1/133528

Abstract: A polarizing plate and an optical display apparatus including the same are provided. The polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer. The first retardation layer has an in-plane retardation (Re) of 200 nm to 250 nm at a wavelength of 550 nm; the second retardation layer has an in-plane retardation (Re) of 80 nm to 140 nm at a wavelength of 550 nm; and the polarizing plate has a total transmittance difference of 2% or more between total transmittance at a wavelength of 450 nm and total transmittance at a wavelength of 420 nm.

公开(公告)号：US12158600B2

公开(公告)日：2024-12-03

申请号：US18330091

申请日：2023-06-06

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Jun Mo Koo ,  Jung Hun You ,  Sang Hum Lee ,  Bong Choon Kim ,  Yoon Jung Kim ,  Ri Ra Jung ,  Kyu Sik Kim ,  Kwang Ho Shin ,  Han Mam Jeong ,  Eun Su Park

IPC: G02B5/30 ,  G02F1/1335

Abstract: A polarizing plate and an optical display apparatus including the same are provided. The polarizing plate includes: a polarizer; and a first retardation layer and a second retardation layer sequentially stacked on a lower surface of the polarizer. The first retardation layer has an in-plane retardation (Re) of 200 nm to 250 nm at a wavelength of 550 nm; the second retardation layer has an in-plane retardation (Re) of 80 nm to 140 nm at a wavelength of 550 nm; and the polarizing plate has a total transmittance difference of 2% or more between total transmittance at a wavelength of 450 nm and total transmittance at a wavelength of 420 nm.

公开(公告)号：US20190285789A1

公开(公告)日：2019-09-19

申请号：US16431460

申请日：2019-06-04

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kwang Ho Shin ,  Eun Su Park ,  Dong Yoon Shin ,  Hae Ryong Chung

IPC: G02B5/30 ,  B32B33/00 ,  G02F1/13363 ,  G02F1/1335

Abstract: The present invention relates to a polarizing plate including a polarizer and a polyester film formed on an upper side of the polarizer, wherein the polyester film has a maximum thermal shrink angle of about 10° or less, and any one of a refractive index of x-axis direction nx at a wavelength of 550 nm and a refractive index of y-axis direction ny at a wavelength of 550 nm of about 1.65 or more; a method of preparing the polarizing plate; and a liquid crystal display apparatus comprising the polarizing plate.

公开(公告)号：US09995863B2

公开(公告)日：2018-06-12

申请号：US14842727

申请日：2015-09-01

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kwang Ho Shin ,  Eun Su Park ,  Dong Yoon Shin ,  Hae Ryong Chung

IPC: G02B5/30 ,  G02F1/1335 ,  G02F1/13363 ,  G02B1/14

CPC classification number: G02B5/305 ,  B32B2457/202 ,  G02B1/14 ,  G02B5/3033 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/13363 ,  G02F1/133634 ,  G02F2001/133531 ,  G02F2202/40 ,  G02F2413/12

Abstract: A polarizing plate includes a polarizer, and a polyester film formed on one or both surfaces of the polarizer. The polyester film has a tensile strength ratio of about 3 or greater, as calculated by Equation 4, and an orientation displacement (°) of about −5° to about +5° with respect to a transverse direction (slow axis) of the polyester film at a wavelength of 550 nm. A liquid crystal display apparatus includes the polarizing plate Tensile strength ratio=TD tensile strength/MD tensile strength  Equation 4.

公开(公告)号：US20160026022A1

公开(公告)日：2016-01-28

申请号：US14797060

申请日：2015-07-10

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yeon Ju Jung ,  Ae Kyoung Kim ,  Han Su Kim ,  Kwang Ho Shin ,  Dong Yoon Shin

IPC: G02F1/13363 ,  G02F1/1335

CPC classification number: G02F1/133528 ,  G02F1/133634 ,  G02F2001/133631 ,  G02F2001/133635

Abstract: An LCD module includes an LCD panel, and a polarizing plate formed on each of the upper and lower surfaces of the LCD panel. The polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film has a difference between the index of refraction in the x-axis direction and the index of refraction in the z-axis direction (nx−nz) of about 0.1 to about 0.18, where nx and nz are the indices of refraction in the x-axis and z-axis directions, respectively, at a wavelength of 550 nm. The LCD module has a CR 45° and a CR 135° of about 1.0% or greater.

Abstract translation: LCD模块包括LCD面板和形成在LCD面板的每个上表面和下表面上的偏振片。 偏振片包括形成在偏振片的至少一个表面上的偏振片和聚酯膜。 聚酯膜的x轴方向的折射率与z轴方向的折射率（nx-nz）之差在0.1〜0.18左右，其中nx和nz为折射率 分别在550nm的波长的x轴和z轴方向。 LCD模块的CR 45°和CR 135°约为1.0％以上。

公开(公告)号：US11698476B2

公开(公告)日：2023-07-11

申请号：US17396303

申请日：2021-08-06

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Do Won Kim ,  Han Saem Kang ,  Kwang Ho Shin ,  Sung Man Cho ,  Eun Sol Cho ,  Seon Oh Hwang

IPC: G02B1/14 ,  G02B5/30 ,  B32B7/12 ,  B32B27/30 ,  B32B27/08

CPC classification number: G02B1/14 ,  B32B7/12 ,  B32B27/08 ,  B32B27/306 ,  G02B5/3025 ,  B32B2250/02 ,  B32B2250/24 ,  B32B2307/42 ,  B32B2307/73 ,  B32B2307/732

Abstract: A polarizing plate and an optical display apparatus including the same are provided. A polarizing plate includes a polarizer and a protective film stacked on at least one surface of the polarizer, and the polarizer includes a hydrophobic polyvinyl alcohol resin, the polarizer has a surface roughness (Ra) of about 10 nm or less on a surface thereof facing the protective film, and the polarizing plate has a maximum metal ion-infiltration length of about 400 μm or less between the polarizer and the protective film when metal powder-containing pastes are deposited on a surface of the polarizing plate in a thickness direction thereof and left at 60° C. and 95% relative humidity (RH) for 240 hours.

公开(公告)号：US10330841B2

公开(公告)日：2019-06-25

申请号：US14915065

申请日：2014-08-12

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kwang Ho Shin ,  Eun Su Park ,  Dong Yoon Shin ,  Hae Ryong Chung

IPC: G02B5/30 ,  B29C55/08 ,  B32B33/00 ,  B32B37/12 ,  B32B37/14 ,  G02F1/1335 ,  G02F1/13363

Abstract: The present invention relates to a polarizing plate including a polarizer and a polyester film formed on an upper side of the polarizer, wherein the polyester film has a maximum thermal shrink angle of about 10° or less, and any one of a refractive index of x-axis direction nx at a wavelength of 550 nm and a refractive index of y-axis direction ny at a wavelength of 550 nm of about 1.65 or more; a method of preparing the polarizing plate; and a liquid crystal display apparatus comprising the polarizing plate.

公开(公告)号：US09835771B2

公开(公告)日：2017-12-05

申请号：US14952795

申请日：2015-11-25

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Kwang Ho Shin ,  Eun Su Park ,  Dong Yoon Shin

IPC: G02B1/18 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13363

CPC classification number: G02B1/18 ,  G02B1/14 ,  G02B5/3083 ,  G02F1/133528 ,  G02F1/13363

Abstract: A polarizing plate and a liquid crystal display including the polarizing plate include: a polarizer; and a surface protective film on a first surface of the polarizer, and the surface protective film includes a first protective film on the first surface of the polarizer, and a primer layer on at least one surface of the first protective film, a refractive index ratio of the first protective film to the primer layer satisfying the equation: 0.6

公开(公告)号：US10684504B2

公开(公告)日：2020-06-16

申请号：US16329141

申请日：2017-06-22

Applicant: Samsung SDI Co., Ltd.

Inventor： Jin Woo Kim ,  Yi Eun Kim ,  Min Jeong Park ,  Kwang Ho Shin ,  Ji Hyun Wi ,  Ji Hyun Hwang

IPC: G02F1/1335 ,  B32B27/36 ,  G02F1/13363 ,  C09K11/61 ,  G02B5/30

Abstract: Provided is a liquid crystal display device comprising: a light source having a wide color reproduction range; a liquid crystal panel; and a polarizing plate arranged on the visible side of the liquid crystal panel, wherein the polarizing plate comprises a polarizer and a polarizer protecting film; the polarizer protecting film comprises a polyester base film having an in-plane phase difference of 8,000 nm or higher at a wavelength of 550 nm and a primer layer formed on at least one surface of the polyester base film; and a coating layer having a lower refractive index than the primer layer is additionally formed on a surface of the primer layer.

公开(公告)号：US09791734B2

公开(公告)日：2017-10-17

申请号：US14797060

申请日：2015-07-10

Applicant: SAMSUNG SDI CO., LTD.

Inventor： Yeon Ju Jung ,  Ae Kyoung Kim ,  Han Su Kim ,  Kwang Ho Shin ,  Dong Yoon Shin

IPC: G02F1/1335 ,  G02F1/13363

CPC classification number: G02F1/133528 ,  G02F1/133634 ,  G02F2001/133631 ,  G02F2001/133635

Abstract: An LCD module includes an LCD panel, and a polarizing plate formed on each of the upper and lower surfaces of the LCD panel. The polarizing plate includes a polarizer and a polyester film formed on at least one surface of the polarizer. The polyester film has a difference between the index of refraction in the x-axis direction and the index of refraction in the z-axis direction (nx−nz) of about 0.1 to about 0.18, where nx and nz are the indices of refraction in the x-axis and z-axis directions, respectively, at a wavelength of 550 nm. The LCD module has a CR 45° and a CR 135° of about 1.0% or greater.