发明名称 |
OPTICAL SHEET, SURFACE LIGHT SOURCE APPARATUS, TRANSMISSION TYPE DISPLAY APPARATUS, LIGHT EMITTER, MOLD, AND METHOD FOR MANUFACTURING MOLD |
摘要 |
An optical sheet includes a sheet-like body portion, and unit prisms arranged on one surface of the body portion. Each unit prism extends linearly in a direction intersecting the arrangement direction. Each unit prism, when viewed in a direction parallel to the arrangement direction of the unit prisms, has an uneven polygonal-line-shaped contour and, with reference to raised portions defined by the polygonal-line-shaped contour of each unit prism, the distance between a top of each raised portion, a farthest point from the body portion in the raised portion, and the body portion in the normal direction of the body portion is not constant. The optical sheet can prevent significant problems when it is superimposed on another member. |
申请公布号 |
KR20110124320(A) |
申请公布日期 |
2011.11.16 |
申请号 |
KR20117022231 |
申请日期 |
2010.02.25 |
申请人 |
DAI NIPPON PRINTING CO., LTD. |
发明人 |
KOJIMA HIROSHI;GOISHIHARA SATOSHI;MAENISHI SATOKO |
分类号 |
G02B5/02;F21S2/00;F21V5/02;G02F1/13357 |
主分类号 |
G02B5/02 |
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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