Invention Grant
US07651643B2 Polarizer, method for producing same, polarizing plate, optical film, and image display
有权
偏振器，其制造方法，偏光板，光学膜和图像显示器
- Patent Title: Polarizer, method for producing same, polarizing plate, optical film, and image display
- Patent Title (中): 偏振器，其制造方法，偏光板，光学膜和图像显示器
-
Application No.: US10553958Application Date: 2004-04-19
-
Publication No.: US07651643B2Publication Date: 2010-01-26
- Inventor: Yuuji Saiki , Hideyuki Usui , Takahisa Konishi , Takemichi Yoshida
- Applicant: Yuuji Saiki , Hideyuki Usui , Takahisa Konishi , Takemichi Yoshida
- Applicant Address: JP Ibaraki-shi, Osaka
- Assignee: Nitto Denko Corporation
- Current Assignee: Nitto Denko Corporation
- Current Assignee Address: JP Ibaraki-shi, Osaka
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2003-115650 20030421
- International Application: PCT/JP2004/005548 WO 20040419
- International Announcement: WO2004/095091 WO 20041104
- Main IPC: B29D11/00
- IPC: B29D11/00
Abstract:
A polarizer of the invention comprises a polyvinyl alcohol-based film which is at least dyed with at least iodine and uniaxially stretched, having a single transmittance of 43% or more, a polarizing efficiency of 99.9% or more, and a dichroic ratio of 30 or more, wherein the dichroic ratio is calculated from a parallel transmittance (Tp) and a crossed transmittance (Tc) at a wavelength of 440 nm, and have good hue.
Public/Granted literature
- US20060227423A1 Polarizer, method for producing same, polarizing plate, optical film, and image display Public/Granted day:2006-10-12
Information query
