发明名称 |
Method for projecting an image obtained by using liquid crystal panels and display apparatus for realizing the same |
摘要 |
<p>In a projection-type display apparatus using light scattering type liquid crystal devices (15), light from a light source (11) is reflected by a reflecting mirror (12) through a collecting lens (13); reflected light is converted by a lens (16) into a parallel light beam, which is injected into liquid crystal devices (15) disposed on three sides through a dichroic mirror (14), the liquid crystal devices coloring an image in red, green and blue; the image is projected on a screen through again the dichroic mirror (14), the collecting lens (16) and an enlarging lens (17). Further a photodetector (1704) is disposed at a focal point of the collecting lens (16) and a function of adjusting the position of the light source on the basis of a result of this detection is added. <IMAGE></p> |
申请公布号 |
EP0504813(B1) |
申请公布日期 |
1998.03.04 |
申请号 |
EP19920104602 |
申请日期 |
1992.03.17 |
申请人 |
HITACHI, LTD. |
发明人 |
NAGAE, YOSHIHARU;MORI, YUJI;MIKAMI, YOSHIRO;SATO, HIDEO;HOSHINO, MINORU;FUKUDA, KYOHEI |
分类号 |
H04N5/74;H04N9/31;(IPC1-7):H04N9/31 |
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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