Optical device and projection display
    2.
    发明授权
    Optical device and projection display 失效
    光学设备和投影显示

    公开(公告)号:US06583938B1

    公开(公告)日:2003-06-24

    申请号:US09675793

    申请日:2000-09-29

    IPC分类号: G02B2710

    摘要: An optical device which is suitable for use in a projection display comprises a spatial light modulator, such as a liquid crystal device, with a microlens array disposed on its front surface. The microlenses are of convergent type, such as lenticules. The spatial light modulator is of the reflective type and comprises a plurality of rear reflectors, each of which has convergent optical power in at least one direction. The reflectors are arranged such that, for a given direction of illumination, each reflector forms an image of the aperture A of a microlens on the aperture B of another microlens or at a different position on the same microlens. When used in, for example, a projection display, light losses caused by vignetting are reduced.

    摘要翻译: 适用于投影显示器的光学装置包括诸如液晶装置的空间光调制器,其上设置有微透镜阵列。 微透镜是会聚型的,例如微透镜。 空间光调制器是反射型的,并且包括多个后反射器,每个后反射器在至少一个方向上具有会聚光功率。 反射器被布置成使得对于给定的照明方向,每个反射器在另一个微透镜的孔B上或在同一微透镜上的不同位置处形成微透镜的孔A的图像。 当用于例如投影显示器时,由晕影引起的光损耗降低。

    Reflective display device and a light source for a display device
    3.
    发明授权
    Reflective display device and a light source for a display device 失效
    反光显示装置和显示装置用光源

    公开(公告)号:US06483613B1

    公开(公告)日:2002-11-19

    申请号:US09762339

    申请日:2001-04-30

    IPC分类号: G02B532

    摘要: A reflective liquid crystal display device (LCD) (40) includes: a substrate (60), a reflecting layer (61), a liquid crystal layer (62), an electrode layer (63), a color filter layer (64), an upper substrate (65), and a polarizer (66). The reflective liquid crystal display device further includes a holographic field lens (67). By providing the holographic field lens, the LCD can be used with a closely placed, offset light source (41), since the holographic field lens simultaneously concentrates light incident on the LCD and redirects it in a preferred direction. The holographic field lens can be provided within the structure of the LCD.

    摘要翻译: 反射型液晶显示装置(40)包括:基板(60),反射层(61),液晶层(62),电极层(63),滤色器层(64) 上基板(65)和偏振器(66)。 反射型液晶显示装置还包括全息场透镜(67)。 通过提供全息场透镜,LCD可以与紧密放置的偏移光源(41)一起使用,因为全息场透镜同时集中入射在LCD上的光并将其重定向在优选的方向上。 全息场透镜可以在LCD的结构内提供。