发明名称 |
OPTICAL FILM, SURFACE LIGHT SOURCE DEVICE, AND LIQUID CRYSTAL DISPLAY DEVICE |
摘要 |
An optical film in accordance with one embodiment comprises a stack having a plurality of basic pairs each constructed by stacking first and second layers. The number of stacks, the refractive index difference |Δni| in a predetermined direction between the first and second layers, the thicknesses of the first and second layers, and the number of basic pairs are set such that a reflection spectrum formed by the optical film conforms to a target reflection spectrum. The target reflection spectrum is a spectrum having a reflection peak region including a spectrum region having a reflectance of at least 50% within a predetermined wavelength width, in a reflection spectrum of a first polarized light in a wavelength range of 400 to 700 nm, while exhibiting a reflectance of 20% or less in a reflection spectrum of a second polarized light within the wavelength range. |
申请公布号 |
US2012293742(A1) |
申请公布日期 |
2012.11.22 |
申请号 |
US201213443222 |
申请日期 |
2012.04.10 |
申请人 |
BANERJEE SASWATEE;SUMITOMO CHEMICAL COMPANY, LIMITED |
发明人 |
BANERJEE SASWATEE |
分类号 |
G02B5/30;F21V9/14;G02F1/13357 |
主分类号 |
G02B5/30 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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