发明名称 |
Projection type liquid crystal display device |
摘要 |
<p>A projection type liquid crystal display device, including: irradiation means having a function of irradiating light emitted from a light source upon an irradiated surface; a liquid crystal display element for modulating the light; and projection means for projecting the light emitted from said liquid crystal display element, wherein said irradiation means comprises: at least one reflection mirror; a polarization beam splitter for dividing the light from the light source into P polarization light and S polarization light; a lambda /2 phase shifting plate for rotating a direction of polarization of either one of the P polarization and S polarization lights; polarization means being constructed with a reflection mirror for reflecting either one of the P polarization and S polarization lights; a first lens array being constructed with a plurality of condenser lenses, for collecting the light emitted from said polarization means so as to form a plurality of secondary light source images; and a second lens array being constructed with a plurality of condenser lenses and positioned in vicinity of where the plurality of secondary light source images are formed. <IMAGE></p> |
申请公布号 |
EP0883302(B1) |
申请公布日期 |
2008.04.02 |
申请号 |
EP19980109902 |
申请日期 |
1998.05.29 |
申请人 |
HITACHI, LTD. |
发明人 |
KAKUDA, TAKASHI;OUCHI, SATOSHI;YATSU, MASAHIKO;OZAWA, NAOHIRO;MATSUDA, YUTAKA;SHIAKI, TAKUYA |
分类号 |
G02F1/13;H04N9/31;G02B27/28;G02F1/1335;G02F1/13357;G02F1/13363 |
主分类号 |
G02F1/13 |
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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