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1. 发明公开

EP2360515A1 THIN BACKLIGHT SYSTEM AND LIQUID CRYSTAL DISPLAY DEVICE USING SAME 审中-公开
标题翻译： DÜNNESRÜCKLICHTSYSTEMUNDFLÜSSIGKRISTALLANZEIGEDAMIT
公开(公告)号：EP2360515A1
公开(公告)日：2011-08-24
申请号：EP09828948.1
申请日：2009-10-21
申请人： Sharp Kabushiki Kaisha , Tohoku University
发明人： Uchida, Tatsuo , Suzuki, Yoshito , Kawakami, Tohru , Sekiya, Kazuo , Ishinabe, Takahiro , Katagiri, Baku , Hashimoto, Yoshihiro , Ishihara, Shoichi , Kozaki, Shuichi , Ishi, Yutaka
IPC分类号： G02F1/13357 , F21S2/00 , G02F1/1335 , F21Y101/02
CPC分类号： G02B5/045 , G02B19/0028 , G02B19/0047 , G02B19/0066 , G02F1/133605 , G02F1/133615 , G02F2001/133607 , G02F2001/133622
摘要： According to a conventional backlight device for use in a thin full-color display device in which pixels are subjected to a color separation by colored lights, a large chromatic aberration occurs, thereby causing a deterioration in image quality. A thin backlight system in accordance with the present invention includes: a light emitting section (1) for emitting lights that have different dominant wavelengths; and a plurality of light transmitting parts (4) arranged in a predetermined manner, the thin backlight system deflecting the lights and then converging the lights on the plurality of light transmitting parts (4), said thin backlight system, further including: an imaging optical system (3) provided so as to face surfaces, of the plurality of light transmitting parts (4), on which the lights are to be converged, the imaging optical system (3) (i) having a plurality of identical lenses arranged in a vertical and/or a horizontal direction at a pitch found by multiplying a pitch at which the plurality of light transmitting parts (4) are arranged in a vertical and/or a horizontal direction by the number of types of the different dominant wavelengths and (ii) being configured so as to converge the lights from the light emitting section (1) on light transmitting parts (4) to which the different dominant wavelengths of the lights correspond; and an irradiating optical system (2) provided so as to face (a) the light emitting section (1) and (b) a surface, of the imaging optical system (3), through which the lights enter the imaging optical system (3), the irradiating optical system (2) being configured such that (I) the lights from the light emitting section (1), which lights have the different dominant wavelengths, are deflected by the irradiating optical system (2) by at least being reflected by the irradiating optical system (2) so as to be separate from each other, (II) the lights thus deflected leave the irradiating optical system (2) so as to travel in substantially parallel to a normal to each of the plurality of light transmitting parts (4) and (III) the lights enter the plurality of identical lenses of the imaging optical system (3) through a surface, of the imaging optical system (3), which is opposite to the plurality of light transmitting parts (4).
摘要翻译：根据用于通过彩色光使像素进行颜色分离的薄型全色显示装置的常规背光装置，产生大的色像差，从而导致图像质量的劣化。根据本发明的薄背光系统包括：用于发射具有不同主波长的光的发光部分（1）; 以及以预定方式布置的多个光透射部分（4），所述薄背光系统偏转光，然后使所述光聚焦在所述多个透光部分（4）上，所述薄背光系统还包括：成像光学所述多个透光部件（4）中面对着要聚光的光透射部件（3）的系统（3）成像光学系统（3）（i）具有多个相同的透镜垂直和/或水平方向以通过将多个光发射部分（4）在垂直和/或水平方向上排列的间距乘以不同主波长的类型的数量而发现的间距，并且（ii ）被配置为将来自发光部（1）的光会聚在光的不同主波长对应的光透射部（4）上; 以及照射光学系统（2），其设置成面对成像光学系统（3）的发光部（1）和（b）表面的（a），光入射到成像光学系统（3）），照射光学系统（2）被配置为使得（I）来自发光部分（1）的光（其具有不同主要波长的光）被照射光学系统（2）偏转至少被反射通过照射光学系统（2）以彼此分离，（II）由此偏转的光离开照射光学系统（2），以便基本上平行于多个光透射部分（4）和（III）的光通过成像光学系统（3）的与多个透光部分（4）相对的表面进入成像光学系统（3）的多个相同的透镜，。

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