发明名称 |
POLARIZING PLATE, METHOD OF PREPARING THE SAME, AND LIQUID CRYSTAL DISPLAY APPARATUS INCLUDING THE SAME |
摘要 |
A polarizing plate, a method of preparing the same and a liquid crystal display apparatus including the same are disclosed. The polarizing plate includes a polarizer and a polyester film formed on a surface of the polarizer, wherein the polyester film has a ratio of an elongation ratio in a machine direction to an elongation ratio in a transverse direction of about 1:0.8 to about 1:1.2, an in-plane retardation (Re) of about 500 nm or less at a wavelength of 550 nm, and an out-of-plane retardation (Rth) of about 10,000 nm or less at a wavelength of 550 nm. |
申请公布号 |
US2014168767(A1) |
申请公布日期 |
2014.06.19 |
申请号 |
US201314108272 |
申请日期 |
2013.12.16 |
申请人 |
CHEIL INDUSTRIES INC. |
发明人 |
Shin Kwang Ho;Park Eun Su;Shin Dong Yoon;Eun Jong Hyuk;Chung Hae Ryong;Kim Ae Kyoung;Kang Han Saem;Kim Han Su;Jo A Ra |
分类号 |
G02B5/30;B32B38/00 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
1. A polarizing plate comprising:
a polarizer; and a polyester film on a surface of the polarizer, the polyester film having a ratio of an elongation ratio in a machine direction to an elongation ratio in a transverse direction of about 1:0.8 to about 1:1.2, an in-plane retardation (Re) of about 500 nm or less at a wavelength of 550 nm as calculated by Equation 1, and an out-of-plane retardation (Rth) of about 10,000 nm or less at a wavelength of 550 nm as calculated by Equation 2:
Re=(nx−ny)×d Equation 1Rth((nx+ny)/2−nz)×d Equation 2 wherein nx is a refractive index at a wavelength of 550 nm in an x-axis direction of the polyester film, ny is a refractive index of the polyester film at a wavelength of 550 nm in a y-axis direction of the polyester film, nz is a refractive index at a wavelength of 550 nm in a z-axis direction of the polyester film, and d is a thickness of the polyester film in nm.
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地址 |
Gumi-si KR |