发明名称 |
INSTALLATION STRUCTURE FOR FRESNEL LENS SHEET AND REAR-PROJECTION DISPLAY DEVICE |
摘要 |
An installation structure for a Fresnel lens sheet and a rear-projection display device with the structure, the structure being able to retain in excellent planarity a Fresnel lens sheet in the display device, the lens being easily removed from a die in production. An installation structure is for a Fresnel lens sheet (1) with a thickness of 3 mm or less having triangular prisms arranged on the light incoming side of the lens sheet. A prism has an entrance face and a total reflection face totally reflecting part or the whole of light incoming from the entrance face and polarizing it to a desired direction. The structure has a suspension member (12) installed on a top side (11) of a Fresnel lens sheet (1) and a support member (13) for supporting the suspension member (12). It is preferable that a tension-applying member (21) is attached to the lens sheet (1).
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申请公布号 |
KR20050035193(A) |
申请公布日期 |
2005.04.15 |
申请号 |
KR20047020609 |
申请日期 |
2004.12.17 |
申请人 |
DAINIPPON PRINTING CO., LTD. |
发明人 |
GOTO, MASAHIRO;SEKIGUCHI, HIROSHI |
分类号 |
G02B3/06;G02B3/08;G03B21/10;G03B21/62;(IPC1-7):G02B3/06 |
主分类号 |
G02B3/06 |
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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