| 发明名称 |
OPTICAL FILM, OPTICAL COMPENSATION FILM, POLARIZING PLATE AND LIQUID CRYSTAL DISPLAY |
| 摘要 |
An optical film is provided and has retardations satisfying relations (1) to (3):;0≦Re(550)≦10; (1);−25≦Rth(550)≦25; and (2);|I|+|II|+|III|+|IV|>0.5 (nm), (3);with definitions:
I=Re(450)−Re(550);II=Re(650)−Re(550);III=Rth(450)−Rth(550); andIV=Rth(650)−Rth(550),
wherein Re(450), Re(550) and Re(650) are in-plane retardations measured with lights of wavelength of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are measured with lights of wavelength of 450, 550 and 650 nm, respectively. |
| 申请公布号 |
US2015309348(A1) |
申请公布日期 |
2015.10.29 |
| 申请号 |
US201514792835 |
申请日期 |
2015.07.07 |
| 申请人 |
FUJIFILM Corporation |
发明人 |
NAKAYAMA Hajime;TOYAMA Hirofumi;TAKAHASHI Yuta |
| 分类号 |
G02F1/13363;G02B5/30 |
主分类号 |
G02F1/13363 |
| 代理机构 |
|
代理人 |
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| 主权项 |
1. An optical film having retardations satisfying relations (1) to (3):
1≦Re(550)≦5; (1) −15≦Rth(550)≦15; and (2) |I|+|II|+|III|+|IV|>0.5 (nm), (3)with definitions:
I=Re(450)−Re(550); II=Re(650)−Re(550); III=Rth(450)−Rth(550); and IV=Rth(650)−Rth(550), wherein Re(450), Re(550) and Re(650) are in-plane retardations of 450, 550 and 650 nm, respectively; and Rth(450), Rth(550) and Rth(650) are retardations in a thickness direction of the optical film, which are of wavelength of 450, 550 and 650 nm, respectively, and wherein I, II, III and IV satisfy relations (4-D) to (7-D):
0<I≦50; (4-D)−50≦II<0; (5-D)−50≦III≦0; and (6-D)0≦IV≦50, (7-D) wherein a material for forming the optical film comprises an acrylic polymer, or cellulose acylate. |
| 地址 |
Tokyo JP |
