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公开(公告)号:US07482996B2
公开(公告)日:2009-01-27
申请号:US10879882
申请日:2004-06-28
申请人: Brent D Larson , Matthew B. Dubin , Elias S. Haim
发明人: Brent D Larson , Matthew B. Dubin , Elias S. Haim
IPC分类号: G09G5/00
CPC分类号: G02B27/0101 , G02B5/30 , G02B2027/0118
摘要: Methods and apparatus are provided for a combined image on a head-up display. A data image display provides a first part of a combined image. An optical input provides a second part of the combined image, e.g., the background scene. A combiner superimposes the first and second parts to provide the combined image to the viewer. The data image display preferentially delivers s-polarized light to the combiner, which has a selective reflectance region for preferentially reflecting s-polarized light in a wavelength region of interest. In a preferred embodiment, the data image display comprises a backlight, a liquid crystal layer and two polarizers oriented so that the data images directed toward the combiner are s-polarized with respect to the selective reflectance region. A polarization rotation element may also be used in the data image display to facilitate s-polarization orientation.
摘要翻译: 为平视显示器上的组合图像提供方法和装置。 数据图像显示提供组合图像的第一部分。 光学输入提供组合图像的第二部分,例如背景场景。 组合器叠加第一和第二部分以向观看者提供组合的图像。 数据图像显示优先将s偏振光传递到组合器,组合器具有用于优先反射感兴趣的波长区域中的s偏振光的选择性反射区域。 在优选实施例中,数据图像显示器包括背光源,液晶层和定向的两个偏振器,使得朝向组合器的数据图像相对于选择性反射率区域是s偏振的。 在数据图像显示器中也可以使用偏振旋转元件以便于s偏振取向。