发明名称 |
Double-faced lighting device |
摘要 |
A lighting device has a light guide plate having light projecting surfaces at least on the one sides thereof, and at least one brightness enhancement film having a plurality of prisms and disposed adjacently to one of both sides of the light guide plate.
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申请公布号 |
US7186014(B2) |
申请公布日期 |
2007.03.06 |
申请号 |
US20040911693 |
申请日期 |
2004.08.05 |
申请人 |
CITIZEN ELECTRONICS CO., LTD. |
发明人 |
SHIMURA TAKASHI |
分类号 |
F21V7/04;F21V8/00;G02B6/00;G02F1/13357 |
主分类号 |
F21V7/04 |
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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