发明名称 |
BIREFRINGENCE-COMPENSATED LIQUID CRYSTAL DISPLAY AND PROJECTION SYSTEM USING SAME |
摘要 |
<p>A projection system includes an image-forming device and a polarizing beamsplitter. Illumination light illuminates the image-forming device via the first polarizing beamsplitter. A retardation element is disposed between the image-forming device and the polarizing beamsplitter. A bias controller applies a bias to pixels of the image-forming device in the dark state so as to substantially maximize contrast in image light reflected from image-forming device. In some arrangements, the volume between the polarizing beamsplitter and the image-forming device is sealed, with the retarding element being disposed within the sealed volume and being attached to either the polarizing beamsplitter or the image-forming device.</p> |
申请公布号 |
KR20080075211(A) |
申请公布日期 |
2008.08.14 |
申请号 |
KR20087015876 |
申请日期 |
2008.06.30 |
申请人 |
3M INNOVATIVE PROPERTIES COMPANY |
发明人 |
BRUZZONE CHARLES L.;AASTUEN DAVID J. W.;KEYES MICHAEL P. |
分类号 |
H04N5/74 |
主分类号 |
H04N5/74 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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