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    • 1. 发明申请
    • LIGHT-TRANSMITTING MATERIAL, PLANAR LIGHT SOURCE DEVICE AND LIQUID CRYSTAL DISPLAY DEVICE
    • 发光材料,平面光源装置和液晶显示装置
    • WO1997014075A1
    • 1997-04-17
    • PCT/JP1996002822
    • 1996-09-27
    • IBM JAPAN LTD.SEKISUI KAGAKU KOGYO KABUSHIKI KAISHAMAMIYA, JohjiSUZUKI, MasaruTANASE, HiroshiNAKAMURA, KozoHATAZAWA, TsuyonobuWATANABE, TakashiHAYASHI, Hideki
    • IBM JAPAN LTD.SEKISUI KAGAKU KOGYO KABUSHIKI KAISHA
    • G02F01/1335
    • G02B6/0056G02B6/0001G02B6/0038G02B6/0053G02B6/0055G02F1/133536G02F1/13362G02F2001/13355
    • A light-transmitting material having extremely high light utilization efficiency and having diversified forms having a uniform in-plane luminance distribution, and an in-plane light source device for a liquid crystal display device using the light-transmitting material. This material has a first plane as an incidence surface of natural polarized light as incident light and a second plane different from the first plane, as an outgoing surface of specific polarized light generated by modulating natural polarized light, wherein interfaces of two kinds of materials having different refractive indices are arranged at angles ( theta B) +/- alpha DEG satisfying a polarizing angle condition with respect to a main travelling direction of incident light, at least two directions of the interface exist in one light conductor and the difference of the two kinds of materials having different refractive indices is 0.001 to 1.0. Generally, theta B is about 45 DEG . The light-transmitting material further includes a first transparent member having a first refractive index and equipped with a plurality of rectangular equilateral triangle ridges on the first surface thereof and a second transparent member having a second refractive index and equipped with a plurality of downwardly rectangular equilateral triangle grooves in the second surface thereof, and the first and second surfaces come into contact with each other.
    • 具有极高的光利用率并且具有均匀的面内亮度分布的多种形式的透光材料以及使用该透光材料的液晶显示装置的面内光源装置。 这种材料具有作为入射光的自然偏振光的入射面的第一平面和不同于第一平面的第二平面作为通过调制自然偏振光产生的特定偏振光的出射表面,其中两种材料的界面具有 不同的折射率以相对于入射光的主行进方向满足偏振角条件的角度(θB)+/-α°布置,在一个光导体中存在至少两个方向的界面,并且两者的差异 折射率不同的材料种类为0.001〜1.0。 通常,θB约为45°。 透光材料还包括具有第一折射率的第一透明构件,并且在其第一表面上装备有多个矩形的等边三角形脊,以及具有第二折射率的第二透明构件,并且配备有多个向下矩形的等边 在其第二表面中的三角形凹槽,并且第一和第二表面彼此接触。