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Re: IIc Flat Panel Display
giorgio.morocutti@alice.it wrote:
Il Sun, 3 Jun 2012 02:50:41 -0400, "Apple2Steward" <none@none.net> ha
scritto:
I recalled (and located) a post by Beverly Cadieux to the Apple
II Mail Group in which she explained how she had improved
readability of the screen on the IIc LCD monitor by removing the
clear screen from the LCD display itself (2/17/2000):
"It is a plastic panel in the front, comparable to the glass
screen of a monitor. You pry open the case and weasel it out.
This plastic is thick and opaque, and makes the screen hard to
see, Removing it exposes a soft, pillow-like vinyl layer where
the display is fairly clear. A bright light and a certain
"stance" also helps you to see it more clearly.
When the //c is not in use, I lay the thick plastic panel back on
top of the vinyl as a dust cover."
I've not tried this.
Although I don't use these screens frequently, I think that the
C-Vue is more readable compared to the original Apple LCD.
This is true! I have removed the plastic panel and now the visibility
is better, not very good, but better.
A strange design decision. If it is just a neutral density filter,
then the designers must have been thinking of it as a contrast enhancer,
which it would be if the panel were a source of light.
Since the panel works only by reflected light, a gray filter is really
useless, except for protection (in which case, it should have
been clear).
There are "gray-looking" filters in any LCD--the polarizers required to
make the LCD display visible at all, but evidently this gray filter is
not such a polarizer.
Circular polarizers are sometimes used to reduce specular reflections
from an underlying shiny surface, but that doesn't seem to apply either.
-michael
NadaNet 3.1 for Apple II parallel computing!
Home page: http://home.comcast.net/~mjmahon/
"The wastebasket is our most important design
tool--and it's seriously underused."