| 发明名称 | Optical film | ||
| 摘要 | Optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer having an optical property represented by the formula (3), and the optical film has optical properties represented by the formula (1) and the formula (2). Re(450)/Re(550)≦1.00(1)1.00≦Re(650)/Re(550)(2)nx≈ny<nz(3), wherein, Re(450) represents the in-plane phase difference value at a wavelength of 450 nm, Re(550) represents the in-plane phase difference value at a wavelength of 550 nm, and Re(650) represents the in-plane phase difference value at a wavelength of 650 nm, nx represents the principal refractive index in a direction parallel to the film plane, ny represents the refractive index in a direction parallel to the film plane and orthogonally-crossing the direction of nx, nz represents the refractive index in a direction vertical to the film plane, in an index ellipsoid formed by the phase difference layer. | ||
| 申请公布号 | US9529130(B2) | 申请公布日期 | 2016.12.27 |
| 申请号 | US201414454339 | 申请日期 | 2014.08.07 |
| 申请人 | SUMITOMO CHEMICAL COMPANY, LIMITED | 发明人 | Hatanaka Nobuyuki;Yokota Akira;Kobayashi Tadahiro;Sase Mitsutaka;Komatsu Yoshifumi |
| 分类号 | G02F1/1335;G02B5/30 | 主分类号 | G02F1/1335 |
| 代理机构 | Sughrue Mion, PLLC | 代理人 | Sughrue Mion, PLLC |
| 主权项 | 1. An optical film having a first phase difference layer and a second phase difference layer, wherein the second phase difference layer has an optical property represented by the formula (3) and the optical film has optical properties represented by the formula (1) and the formula (2): Re(450)/Re(550)≦1.00 (1) 1.00≦Re(650)/Re(550) (2) nx≈ny<nz (3)wherein, Re(450) represents the in-plane phase difference value at a wavelength of 450 nm, Re(550) represents the in-plane phase difference value at a wavelength of 550 nm, and Re(650) represents the in-plane phase difference value at a wavelength of 650 nm, nx represents the principal refractive index in a direction parallel to the film plane in an index ellipsoid formed by the phase difference layer, ny represents the refractive index in a direction parallel to the film plane and orthogonally-crossing the direction of nx in an index ellipsoid formed by the phase difference layer, and nz represents the refractive index in a direction vertical to the film plane in an index ellipsoid formed by the phase difference layer. | ||
| 地址 | Tokyo JP | ||