发明名称 |
Optical plate having triangular pyramidal depressions and backlight module using the same |
摘要 |
An optical plate includes a light output surface and a bottom surface opposite to the light output surface. The light output surface defines a plurality of triangular pyramidal depressions and a plurality of four-sided pyramidal depressions. Each four-sided pyramidal depression is surrounded by four triangular pyramidal depressions.
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申请公布号 |
US7993020(B2) |
申请公布日期 |
2011.08.09 |
申请号 |
US20080319045 |
申请日期 |
2008.12.31 |
申请人 |
HON HAI PRECISION INDUSTRY CO., LTD. |
发明人 |
CHANG SHAO-HAN |
分类号 |
F21V13/04;F21V5/02 |
主分类号 |
F21V13/04 |
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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