Re: TI-H: lots of ideas


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Re: TI-H: lots of ideas




Why not go thoughthe front?  I have.  The font is simply glued on.  Make
sure you don't pull hrd but sneak a knife along the edges and peal.  This is
their becuase ti knows that after a while dust can biuld up under the seal.

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> From: Greg Hill <gregh@xmission.com>
> To: ti-hardware@lists.ticalc.org
> Subject: Re: TI-H: lots of ideas
> Date: Wed, 1 Oct 1997 20:08:42 -0700 (PDT)
> 
> On Wed, 1 Oct 1997, Bryan Christopher Turner wrote:  
> > > 
> > > I think that a better idea would be to skip the LED thing (tried it 
> > > already), and get an actual backlighting panel.  I'm researching this 
> > > right now, I'll send updates when I make progress...  
> > > 
> > > I've looked into Indeglow panels of that size, they would be
wonderful!  
> > Problem is that the screen unit is not separable from the backing
without some 
> > serious hacking.  The LCD screen is stuck to a foil backing and removal
of the 
> > backing may damage the LCD (it's delecate).  (BTW: I'm referring to a
TI-92 
> > mostly)  
> > 
> > If anyone can find a way to separate the backing from the LCD, please
let me 
> > know! 
> 
> There is a product sold as a night light that has an electroluminescent
> panel (EL or Indiglo) in it. It is about 5 mm (if I remember correctly)
> smaller than the LCD screen in each direction. It is about 1.5mm thick.
> 
> The EL panel could be inserted behind the LCD panel, but it isn't very
> bright when powered from 120 VAC. I suppose if you could get it up to
> about 150 or 200 VAC it would be brighter, but will not last as long.
> Supplying power to the panel is the biggest problem: how do would you go
> about feeding it in there? Inverters exist which convert DC (like 5V) to
> AC for the panel, but one big enough to supply power to the EL panel would
> be rather large (and expensive.. about $15, I think).
> 
> Getting the LCD off isn't particularly difficult, it just takes a while. I
> used a razor knife (sometimes known as a utility knife) to cut the
> double-sided foam mounting tape that holds my LCD to its circuit board.
> Just be careful not to hit the ribbons, that'd cause a really bad day.
> 
> -- 
> Greg Hill
> greg-hill@bigfoot.com
> www.comports.com/link
> 
> 
> 


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