发明名称 |
Image source unit and display device including the same |
摘要 |
An image source unit that can efficiently provide image light emitted from an image source to an observer is disclosed. The image source unit includes an image source; and an optical sheet that disposed closer to an observer side than the image source. The optical sheet includes an optical functional layer that includes a light-transmitting portion having a trapezoidal cross section; and the low refractive-index portion having a wedge shape cross section. An oblique side of the wedge shape cross section of the low refractive-index portion form an angle of thetab with respect to a normal line of the sheet surface.
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申请公布号 |
US8449166(B2) |
申请公布日期 |
2013.05.28 |
申请号 |
US20100976033 |
申请日期 |
2010.12.22 |
申请人 |
KASHIWAGI TSUYOSHI;DAI NIPPON PRINTING CO., LTD. |
发明人 |
KASHIWAGI TSUYOSHI |
分类号 |
F21V8/00;G03B21/56 |
主分类号 |
F21V8/00 |
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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