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JP2003295135A Diffractive spatial light modulator and display 审中-公开
$Diffractive spatial light modulator and display$
标题翻译： DIFFRACTIVE空间光调制器和显示器
公开(公告)号：JP2003295135A
公开(公告)日：2003-10-15
申请号：JP2003116382
申请日：2003-04-21
申请人： Sharp Corp , シャープ株式会社
发明人： ROBINSON MICHAEL GERAINT , TOMBLING CRAIG , MAYHEW NICHOLAS , KURATATE TOMOAKI , TOWLER MICHAEL JOHN
IPC分类号： G02F1/01 , G02F1/13 , G02F1/1335 , G02F1/1343 , G02F1/137 , G02F1/141 , G02F1/29 , G03B21/00
CPC分类号： G02F1/134336 , G02F1/141 , G02F1/292 , G02F2201/124
摘要： PROBLEM TO BE SOLVED: To obtain higher brightness and higher contrast ratio. SOLUTION: A diffractive spatial light modulator has a first substrate 1 and a second substrate 2 between which a liquid crystal layer 20 functioning as a first half wavelength retarder, a half wavelength plate 22 being a second half wavelength retarder, and a liquid crystal layer 21 functioning as a third wavelength retarder are arranged. The first and third half wavelength retarders have switchable optic axes whereas the second half wavelength retarder 22 has a fixed optic axis. The spatial light modulator has a plurality of pixels and each pixel constitutes a switchable phase-only diffraction grating. Each pixel is switchable between a first mode in which incident light is outputted as the zero-th order diffracted light and a second mode in which incident light is outputted as higher order diffracted light. The spatial light modulator can be used to realize a brighter projection display. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：获得更高的亮度和更高的对比度。解决方案：衍射空间光调制器具有第一衬底1和第二衬底2，在第一衬底1和第二衬底2之间形成用作第一半波长延迟器的液晶层20，作为第二半波长延迟器的半波长板22和液体配置作为第三波长延迟器的晶体层21。第一和第三半波长延迟器具有可切换的光轴，而第二半波长延迟器22具有固定的光轴。空间光调制器具有多个像素，并且每个像素构成可切换的仅相位衍射光栅。每个像素可在其中输入入射光作为零级衍射光的第一模式和入射光作为高阶衍射光输出的第二模式之间切换。空间光调制器可用于实现更明亮的投影显示。版权所有（C）2004，JPO

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