发明名称 |
OPTICAL MEMBER AND DISPLAY INCLUDING THE OPTICAL MEMBER |
摘要 |
The present invention provides an optical member including a reflection layer and an information presentation layer, the reflection layer comprising one or more circularly-polarized light reflection layers selected from the group consisting of a right circularly-polarized light reflection layer and a left circularly-polarized light reflection layer, the circularly-polarized light reflection layer consisting of a layer obtained by fixing a cholesteric liquid-crystalline phase, the reflection layer having a reflection wavelength at which a specular reflectance for non-polarized light is more than 20% in a wavelength region in which the circularly-polarized light reflection layer exhibits selective reflection, a diffuse reflectance for non-polarized light at the reflection wavelength less than 50%, the reflection wavelength being in an infrared wavelength region, and the information presentation layer having a pattern of a material that absorbs or reflects light of the reflection wavelength. The optical member can be used as a handwriting input sheet, which can be used by being stuck to the surface of a display. |
申请公布号 |
US2015369979(A1) |
申请公布日期 |
2015.12.24 |
申请号 |
US201514742035 |
申请日期 |
2015.06.17 |
申请人 |
FUJIFILM CORPORATION |
发明人 |
OKI Kazuhiro;ICHIHASHI Mitsuyoshi;MAJIMA Wataru |
分类号 |
G02B5/26;G02B5/20 |
主分类号 |
G02B5/26 |
代理机构 |
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代理人 |
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主权项 |
1. An optical member comprising a reflection layer and an information presentation layer,
the reflection layer comprising one or more circularly-polarized light reflection layers selected from the group consisting of a right circularly-polarized light reflection layer that selectively reflects right circularly-polarized light and a left circularly-polarized light reflection layer that selectively reflects left circularly-polarized light, the circularly-polarized light reflection layer consisting of a layer obtained by fixing a cholesteric liquid-crystalline phase, the reflection layer having a reflection wavelength at which a specular reflectance for non-polarized light is more than 20% in a wavelength region in which the circularly-polarized light reflection layer exhibits selective reflection, a diffuse reflectance for non-polarized light at the reflection wavelength less than 50%, the reflection wavelength being in an infrared wavelength region, and the information presentation layer having a pattern of a material that absorbs or reflects light of the reflection wavelength. |
地址 |
Tokyo JP |