Re: LCD technology

<phil-news-nospam@xxxxxxxx> wrote in message
news:g6t56i01cud@xxxxxxxxxxxxxxxxx

What I read about how LCD technology as used in
computer/TV displays works is this. A flat fluorescent
backlight source emits light into discrete subcells which
each have a color filter, a pair of polarizing filters,
and the polarization twisting liquid crystal and
electrode combination to modulation the light level
between the polarizers.

Why not this design instead. Replace fluorescent
backlight with plain UV backlight, and replace color
filters with single color fluorescent material specific
to each subcell. Place UV blocking in front of
fluorescent material in each subcell.

UV is attenuated by a lot of common construction materials including many
plastics and glasses. Flourescent bulbs work well because the flourescent
material is sealed into the same vacuum chamber as the UV source and there
is nothing but a vacuum and a little mercury vapor in-between.



.

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