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Hmm..
To my understanding, LCD screen consist of small segments (pixels), which are activated/deactivated and scaled/dimmed to achieve the desired colour saturation and luminance on the area much larger than one segment (pixel).
Also, the filtering characteristics of the LCD pixels are not according to standard, used in stellar colorimetry.
Compared to combination of b/w CCD camera and individual RGB filters (on the rotating wheel) the LCD in the light path (with it's low transmission and pixelisation that will affect the resolution of the image) must be inferior.
Personally, I can't see how this idea could be useful.
Could you give us some more detailed theoretical background? For example, how do you intend to calibrate your measurements?
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