发明名称 |
Light guide device and a backlight module using the same |
摘要 |
A light guide device includes a main body and a plurality of parallel elongate first V-shaped microstructures. The main body has an incident surface; an emitting surface adjoining the incident surface; and a reflecting surface opposite to the emitting surface. The first V-shaped microstructures are provided on the reflecting surface. Each of the first V-shaped microstructures has a triangular cross-section having a first base angle nearest the incident surface, a second base angle furthest from the incident surface and a vertex angle. A pitch between adjacent microstructures is configured to be substantially constant. A size of each of the first V-shaped microstructures is defined by the equation is y=9.2637x10<SUP>-6</SUP>x<SUP>2</SUP>-0.0003x+0.0232, wherein x is a distance from a given first V-shaped microstructures to the incident surface (in units of micrometers), and wherein y is a base width of the given first V-shaped microstructures (in units of micrometers).
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申请公布号 |
US7334934(B2) |
申请公布日期 |
2008.02.26 |
申请号 |
US20050265427 |
申请日期 |
2005.11.02 |
申请人 |
UNIVERSITY OF TSINGHUA;HON HAI PRECISION INDUSTRY CO., LTD |
发明人 |
FENG DI;YAN YING-BAI;JIN GUO-FAN;FAN SHOU-SHAN |
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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