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    Fingerprint recognition sensor and optical element
    1.
    发明授权
    Fingerprint recognition sensor and optical element 有权

    公开(公告)号：US12118819B2

    公开(公告)日：2024-10-15

    申请号：US18474861

    申请日：2023-09-26

    Applicant: FUJIFILM Corporation

    Inventor： Ryoji Himeno ,  Shinichi Morishima ,  Yuki Hirai ,  Makoto Kamo ,  Megumi Sekiguchi

    IPC: G06V40/13 ,  G02B5/20

    CPC classification number: G06V40/1318 ,  G02B5/208

    Abstract: A fingerprint recognition sensor having an excellent S/N ratio and capable of realizing thinning and an optical element including the fingerprint recognition sensor. The fingerprint recognition sensor includes a light-receiving element; and an optical element including a near infrared absorbing dichroic substance, in which a fingerprint reading surface is positioned on a side of the optical element opposite to the light-receiving element side. The optical element has an absorption axis with respect to near infrared light in an in-plane direction. When linearly polarized light of near infrared light orthogonal to the absorption axis is radiated from a normal direction of the optical element and from a direction inclined by 45° from the normal direction at an azimuthal angle orthogonal to the absorption axis, an absorbance during the radiation from the direction inclined by 45° from the normal direction is more than an absorbance during the radiation from the normal direction.

    Liquid crystal display device
    5.
    发明授权
    Liquid crystal display device 有权
    液晶显示装置

    公开(公告)号：US09229263B2

    公开(公告)日：2016-01-05

    申请号：US14133001

    申请日：2013-12-18

    Applicant: FUJIFILM Corporation

    Inventor： Megumi Sekiguchi ,  Shinichi Morishima ,  Takashi Yonemoto ,  Hiroshi Sato ,  Taketo Otani

    IPC: G02F1/1335

    CPC classification number: G02F1/133504

    Abstract: A liquid crystal display device includes first and second polarizers with absorption axes orthogonal to each other; first and second substrates between the first and second polarizers and at least one of which has a transparent electrode; and a twisted-nematic liquid crystal cell disposed between the first and second substrates, wherein a light scattering film is provided at a viewing side of the first and second polarizers and includes a support member and a liquid crystal layer composed of a liquid crystal compound, wherein the pitch of the liquid crystal compound ranges between 0.35 μm and 3 μm and is oriented at 45° relative to a liquid-crystal direction of the liquid crystal display device, wherein the liquid crystal layer has a thickness between 0.17 μm and 10 μm, and wherein a weighted scattering area ratio of a goniophotometer scattering profile of the light scattering film satisfies the following expression. S 60 / ( S 0 ) 2 × 1000 > 40 S 0 = ∑ S 0 ⁡ ( θ ) × θ ∑ S 0 ⁡ ( θ ) S 60 = ∑ S 60 ⁡ ( θ ) × exp ⁡ ( - 0.2 × θ ) ∑ S 60 ⁡ ( θ )

    Abstract translation: 液晶显示装置包括具有彼此正交的吸收轴的第一和第二偏振器; 第一和第二偏振器之间的第一和第二基板，并且其中至少一个具有透明电极; 以及设置在第一和第二基板之间的扭曲向列型液晶单元，其中在第一和第二偏振器的观察侧设置有光散射膜，并且包括支撑构件和由液晶化合物构成的液晶层， 其中液晶化合物的间距在0.35μm和3μm之间，相对于液晶显示装置的液晶方向取向为45°，其中液晶层的厚度为0.17μm至10μm， 并且其中光散射膜的测角光度计散射分布的加权散射面积比满足以下表达式。 S 60 /（S 0）2×1000> 40 S 0 =ΣS 0⁡（＆thetas;）×＆thetas; ΣS 0⁡（＆thetas;）S 60 =ΣS 60⁡（＆thetas）×exp⁡（ - 0.2×＆thetas;）ΣS 60⁡（＆Thetas;）

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