发明授权
- 专利标题： Method for manufacturing retardation film, retardation film, polarizing plate, and liquid crystal display
- 专利标题（中）： 制造相位差膜，延迟膜，偏振片和液晶显示器的方法
-
申请号： US12360681申请日： 2009-01-27
-
公开(公告)号： US08120849B2公开(公告)日： 2012-02-21
- 发明人: Shinichi Nakai
- 申请人： Shinichi Nakai
- 申请人地址： JP Tokyo
- 专利权人： Fujifilm Corporation
- 当前专利权人： Fujifilm Corporation
- 当前专利权人地址： JP Tokyo
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2008-021608 20080131
- 主分类号： G02B27/28
- IPC分类号： G02B27/28
摘要：
A retardation film is manufactured by stretching a thermoplastic resin film while adjusting stretching ratio α [%], temperature β [° C.], and stretching speed γ [%/min] so that the following formulas (1) and (2) are satisfied when the thermoplastic resin film is stretched at the stretching ratio α [%], the temperature β [° C.], and the stretching speed γ [%/min], therefore, stretching unevenness can be prevented: Z>X (1) (X×100/k)×0.2
公开/授权文献
信息查询
