Invention Grant
- Patent Title: Optical film and liquid crystal display device
- Patent Title (中): 光学薄膜和液晶显示装置
-
Application No.: US13272979Application Date: 2011-10-13
-
Publication No.: US08477275B2Publication Date: 2013-07-02
- Inventor: Hirofumi Toyama , Isao Fujiwara , Jun Takeda , Yoji Ito
- Applicant: Hirofumi Toyama , Isao Fujiwara , Jun Takeda , Yoji Ito
- Applicant Address: JP Tokyo
- Assignee: Fujifilm Corporation
- Current Assignee: Fujifilm Corporation
- Current Assignee Address: JP Tokyo
- Agency: Edwards Neils PLLC
- Agent Jean C. Edwards, Esq.
- Priority: JP2010-231033 20101013
- Main IPC: G02F1/1335
- IPC: G02F1/1335

Abstract:
An optical film contains a cellulose acylate film, and at least two layers of an optically anisotropic layer A and an optically anisotropic layer B, wherein the cellulose acylate film satisfies the specific formulae, Re(548) of the optically anisotropic layer A is from 80 to 190 nm and the slow axis of the optically anisotropic layer A is at 45°±10° with respect to the film conveying direction, and the optically anisotropic layer B satisfies the specific formulae.
Public/Granted literature
- US20120092594A1 OPTICAL FILM AND LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2012-04-19
Information query
IPC分类: