Path: utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!wuarchive!kuhub.cc.ukans.edu!mcginnis
From: mcginnis@kuhub.cc.ukans.edu
Newsgroups: sci.electronics
Subject: An inexpensive LCD screen??
Message-ID: <27641.277b7073@kuhub.cc.ukans.edu>
Date: 28 Dec 90 22:18:59 GMT
Organization: University of Kansas Academic Computing Services
Lines: 19

Does anybody know where I can get an inexpensive LCD screen?  The
resolution does not have to be high (5x7 pixel characters is OK)
and it does not have to be large (5 to 10 lines of 40 characters is OK).

Please send me the vendor, part #, and anything else you have
handy on it.

Also, does anybody out there know how color LCD's work?  I know that
LCD's work by changing polarization of an internal film and that one
can get colors from viewing various types of crystals under a polarized
microscope... I assume that the mechanism is the same but I don't
know what that mechanism is.

Perhaps, when you have two polarizing films overlapping and rotated so
that their axis of polarization are not parallel then the light would
have to fit "through" the holes.  Like the crossed slats of an ivy
trellas.  If the angle were small then longer wavelengths could fit
through and with sharper angles the smaller wavelengths are all that
can fit through.  Am I on the right track?