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    • 1. 发明授权
    • Light guiding plate
    • 导光板
    • US06607279B2
    • 2003-08-19
    • US09954336
    • 2001-09-17
    • Eiki NiidaFumikazu IsogaiYasuya MitaNorihito TakeuchiTomoyoshi MotohiroTatsuo FukanoYasuhiko Takeda
    • Eiki NiidaFumikazu IsogaiYasuya MitaNorihito TakeuchiTomoyoshi MotohiroTatsuo FukanoYasuhiko Takeda
    • G01D1128
    • G02B6/0038G01D11/28
    • A light guiding plate guides light from a light source to illuminate a liquid crystal cell. A reflector reflects light from the light source. A first surface and a second surface selectively transmits or reflects light. A first region is formed on the first surface at a location that is relatively near the light source. The first region includes a first inclined face and a second inclined face. The first inclined face reflects light from the light source to guide light to the reflector. The second inclined face reflects light from the light source to the second surface so that the second surface emits light. A second region is formed on the first surface at a location that is relatively far from the light source. The second region includes a third inclined face and a fourth inclined face. The third inclined face reflects light from the light source to the second surface so that the second surface emits light. The fourth inclined face reflects light reflected by the reflector to the second surface so that the second surface emits light.
    • 导光板引导来自光源的光以照亮液晶盒。 反射器反射来自光源的光。 第一表面和第二表面选择性地透射或反射光。 在相对靠近光源的位置处,在第一表面上形成第一区域。 第一区域包括第一倾斜面和第二倾斜面。 第一倾斜面反射来自光源的光,以将光引导到反射器。 第二倾斜面将来自光源的光反射到第二表面,使得第二表面发光。 在距离光源相对较远的位置处,在第一表面上形成第二区域。 第二区域包括第三倾斜面和第四倾斜面。 第三倾斜面将来自光源的光反射到第二表面,使得第二表面发光。 第四倾斜面将由反射器反射的光反射到第二表面,使得第二表面发光。