Re: TI-H: LED Backlight

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: LED Backlight
From: joachim.armbruster@gmx.de
Date: Fri, 29 Jan 1999 19:30:21 +0100
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
Delivered-To: ti-hardware@lists.ticalc.org
In-reply-to: <004e01be4a2a$ecdc6060$c9648ed1@vizzini.rdtech.>
Reply-To: ti-hardware@lists.ticalc.org



> Well, I haven't seen either, but a backlight will usually reduce the
> visability of the LCD in normal light, the only time it will improve
> the visability is when you use it in a dark area.  

This sounds plausible. But you can switch on the backlight all the 
time.

> If the screen contrast
> is worse than a typical 85 I don't think I'd recommend a backlight
> unless you already have something better to put behind it.  

The only things I have to compare is my HP48G and a friends '89.
You can say that the HP48G is better than the 92 but worse than 
the 89. This calculator has the best 'Graph' calc I've ever seen.

> An EL backlight probably would not be a good idea.

Oh? Then happens what we call in german a 
'verschlimmbesserung' :-)
It means that you want to improve something, and get your 
improvement, but in an other way it will going worse. :-)

> 
> I remove the plastic screens on my 85's, it makes the LCD much
> easier to see, the plastic is kind of hazy, and any covering will
> decrease the visibility.  

I already removed the plastic. No problem with dirt. I keep my ti 
always clean. :-)
Now I have a little improved contrast.

> It doesn't look as nice of course, but that doesn't really bother 
> me.

I think the TI Backlight is ok. But the thing which makes me mad is 
that I pay more than 400,- DM for a machine that is some cases 
still beaten by the 10 year old HP.
Thats the only reason.

References:

Re: TI-H: LED Backlight

From: "David Knaack" <dknaack@geocities.com>