发明名称 POLARIZATION-CONVERTING LIGHT SOURCE DEVICE AND PROJECTION TYPE LIQUID CRYSTAL DISPLAY DEVICE USING THE SAME
摘要 <P>PROBLEM TO BE SOLVED: To provide a polarization-converting light source device reduced in size while maintaining high use efficiency of light. <P>SOLUTION: The light source device includes a non-polarizing cross dichroic prism 13 having two reflection faces 13r, 13b substantially orthogonal to each other and reflecting light at predetermined wavelengths, three light sources 11r, 11g, 11b emitting light at wavelengths different from one another, three reflectors 12r, 12g, 12b corresponding to the respective light sources, and a reflective polarization separator 14. The reflectors 12r, 12g, 12b are arranged in such a manner that the light of the respective colors reflected by the polarization separator 14 is reflected by the respective reflectors to be incident to the non-polarizing cross dichroic prism 13. <P>COPYRIGHT: (C)2012,JPO&INPIT
申请公布号 JP2012118452(A) 申请公布日期 2012.06.21
申请号 JP20100270398 申请日期 2010.12.03
申请人 ASAHI KASEI E-MATERIALS CORP;HI-MEC CO LTD 发明人 TANAKA YUJI;OKUHARA KUNINORI
分类号 G03B21/00;G02B5/04;G02B5/30;G02F1/13;G02F1/13357 主分类号 G03B21/00
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