发明名称 |
PROJECTION TYPE LIQUID CRYSTAL DISPLAY DEVICE |
摘要 |
<p>A projection type liquid crystal display device using liquid crystal display elements (3), which has a light source (1); illumination optics (2) having a function of irradiating a plane to be irradiated with light emitted by the light source (1); and liquid crystal display elements (3) modulating light; projection optics (4) for projecting light exiting from the liquid crystal display elements (3); wherein the illumination optics (2) include at least an elliptic mirror (5) and a spherical mirror (6), and the illumination optics (2) include further a first lens array (22) and a second lens array (23), in which a plurality of lenses are arranged perpendicularly to an optical axis, from the light source (1) side; and a condenser lens (7) for irradiating the liquid crystal display elements (3) with light after exit from the second lens array (23) with a high efficiency. In this way it is possible to realize a bright projection type liquid crystal display device having a small size and a good image quality performance. <IMAGE></p> |
申请公布号 |
KR100266423(B1) |
申请公布日期 |
2000.09.15 |
申请号 |
KR19970022893 |
申请日期 |
1997.06.03 |
申请人 |
HITACHI, LTD. |
发明人 |
KAKUDA, TAKASHI;DEGUCHI, NASAHARU;YANASAKI, HUTOSI;NARUYANA, DAKESUKE;KONUMA, NAOHIRO;MATSUDA, YUTAKA |
分类号 |
G02F1/13;G02B27/00;G02F1/1335;G03B21/00;H04N5/74;H04N9/31;(IPC1-7):H04N9/31;G02F1/133 |
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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