发明名称 |
Flat Lighting Device and Liguid Crystal Display Device |
摘要 |
The present invention makes a radiation angle of light at a portion of a light guide plate in front of an LED formed on one edge of a light guide plate and a radiation angle of light at a corner portion of the light guide plate equal to each other as much as possible. A shape of beam control elements which are arranged on a lower surface of a light guide plate is arranged concentrically about the LED.
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申请公布号 |
US2007230214(A1) |
申请公布日期 |
2007.10.04 |
申请号 |
US20070692997 |
申请日期 |
2007.03.29 |
申请人 |
KOGANEZAWA NOBUYUKI;TOBE AKIYOSHI;SATO FUMIYUKI |
发明人 |
KOGANEZAWA NOBUYUKI;TOBE AKIYOSHI;SATO FUMIYUKI |
分类号 |
F21V7/04 |
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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