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首页> 外文期刊>IEEE Transactions on Circuits and Systems for Video Technology >Optical system and characteristics of an LCD projector withinterleaved pixels using four LCD projectors
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Optical system and characteristics of an LCD projector withinterleaved pixels using four LCD projectors

机译：使用四台LCD投影仪的像素交错的LCD投影仪的光学系统和特性

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摘要

This paper describes an LCD projector that produces bright, high-resolution, large-screen images. The projector produces a composite overlaid image on screen by pixel interleaving, in which pixels of multiple LCD panels are shifted half a pixel with respect to each other. Greatly enhanced luminance and a very compact optical system is achieved by deploying multiple LCD projectors on opposite sides of a roof-shaped mirror with a vertical angle of 90°. As an alternative to the conventional large and ungainly optical stage for positioning on-screen images, a new positioning adjustment mechanism is proposed. This mechanism consists of two adjustable liquid prisms separated by air. Placed in the light path between the projection lens and the LCD panel, this mechanism allows four-axis shift and tilt adjustment and remote positioning control that can precisely adjust images to within several microns. A prototype projector incorporating four 640×480 pixel LCD panels has achieved a horizontal resolution of 700 TV lines, which is comparable to HDTV
机译：本文介绍了一种可产生明亮，高分辨率，大屏幕图像的LCD投影仪。投影仪通过像素交错在屏幕上产生合成的叠加图像，其中多个LCD面板的像素相对于彼此移位了半个像素。通过将多个LCD投影仪以90°的垂直角部署在屋顶形镜的相对两侧，可以大大提高亮度并实现非常紧凑的光学系统。作为用于在屏幕上定位图像的常规大型且笨拙的光学平台的替代，提出了一种新的定位调整机制。该机构包括两个可调节的液体棱镜，它们之间被空气隔开。该机制位于投影透镜和LCD面板之间的光路中，可以进行四轴移位和倾斜调整以及可以将图像精确地调整到几微米内的远程定位控制。包含四个640×480像素LCD面板的原型投影仪已经实现了700条电视线的水平分辨率，这可与HDTV媲美

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