发明授权
- 专利标题: Projection liquid crystal display apparatus wherein overall focal point of the lens is shifted to increase effective aperture ratio
- 专利标题(中): 投影液晶显示装置,其中透镜的整体焦点偏移以增加有效开口率
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申请号: US10154713申请日: 2002-05-24
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公开(公告)号: US06680762B2公开(公告)日: 2004-01-20
- 发明人: Toshihiro Fukuda , Tomoki Furuya
- 申请人: Toshihiro Fukuda , Tomoki Furuya
- 优先权: JPP2001-158526 20010528
- 主分类号: G02F11335
- IPC分类号: G02F11335
摘要:
A liquid crystal display device includes a liquid crystal layer, pixel electrodes having pixel apertures, and at least one microlens array including microlenses arranged two-dimensionally in correspondence with the pixel apertures. Each microlens includes a condenser lens having at least one lens surface along an optical axis and condensing light incident thereon toward the corresponding pixel aperture, and a field lens having at least one lens surface along the optical axis and being constructed such that the focal point thereof is at approximately the same position as the principal point of the condenser lens. The overall focal point of the condenser lens and the field lens is shifted from the corresponding pixel aperture, and the amount of shift is set such that an effective aperture ratio is increased compared with the case in which the overall focal point is at the same position as the corresponding pixel aperture.
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