发明申请
- 专利标题： Projection-type picture display apparatus and screen used thereby
- 专利标题（中）： 投射型图像显示装置和使用的画面
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申请号： US11802125申请日： 2007-05-21
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公开(公告)号： US20070223089A1公开(公告)日： 2007-09-27
- 发明人: Koji Hirata , Shigeru Inaoka
- 申请人： Koji Hirata , Shigeru Inaoka
- 优先权： JP10-282261 19981005
- 主分类号： G03B21/60
- IPC分类号： G03B21/60
摘要：
A screen for use in a projection-type image display apparatus having an image displaying element which includes a plurality of pixels for modulating light from a light source so as to form an enlarged picture on the screen. The screen includes a Fresnel lens sheet, a first sheet disposed on the light emission side of the Fresnel lens sheet, and a second sheet disposed on a light emission side of the first sheet. The first sheet includes a plurality of lenticular lenses which extend in a longitudinal direction and are arranged in a horizontal direction, with light passing window portions being formed at positions opposing the lenticular lenses and with light absorbing portions provided therebetween.