Re: TI-H: Indiglo Backlight/keylight

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Re: TI-H: Indiglo Backlight/keylight


Can EL Panels be cut??? If they can, and you have a glass cutter, you 
can get 10.6" x 6.5" inch EL panels from All Electronics for $6!!! $10 
gets a 12" x 6.5" inch panel! They are mounted on glass though, so that 
may pose as a problem. If the glass was scored, and EL panels can be 
cut, that might be a good deal??? If you can solder them, that would be 
even better. Maybe you could make more than one then, but I doubt that, 
cause the fact they're mounted on glass. Otherwise, you can probably 
find them else where. All Electronics also has a 64x440 pixel LCD with 
built in EL backlight and inverter for $15. If you cut the EL in half, 
and use the inverter (5 volts!!!), it would WORK!!!

Richard Piotter
richfiles1@hotmail.com

>
>
>Ok.  When I was looking through my magazines for LCD screens (for your
>laptop!) I saw a section for EL inverters.  The inverter compatible 
with an
>EL screen this size is about $13.  Go to www.digikey.com and look up 
part
>number 73-1002-ND or 73-1009-ND.  I don't have measurements, but 
digikey
>probably does.  Please, does anyone know where I can get an EL panel?
>
>
>                                                                            
>    -Robert Brack
>
>reb@netride.com
>
>-----Original Message-----
>From: Richard Piotter <richfiles1@hotmail.com>
>To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>Date: Friday, February 13, 1998 3:42 PM
>Subject: Re: TI-H: Indiglo Backlight/keylight
>
>
>>
>>65mm x 45mm. Maybe add about 1-2 mm to each. This if for the TI-85/86.
>>The TI-81, 82, & 83 should also be about that size. Not sure. The 
hight
>>its the same, but the width may be different. I don't think so, and it
>>doesn't matter. They don't have as many horizontal pixels, but they 
are
>>wider and have larger margins, so use those dimentions for all TI-8x
>>except the TI-80. For the TI-80, it's about 50mm x 40mm. I can get you
>>the TI-92 LCD dimentions later, but I can NOT remove at all. It may be
>>impossible to remove the TI-92 screen without causing damage. Where do
>>these EL panels come from. What about the inverters. I'd like to know
>>where. I want to build these EL panels. If the inverter is too big
>>though, I want one to fit inside the calc. That's my goal.
>>
>>Richard Piotter
>>richfiles1@hotmail.com
>>
>>>
>>>
>>>I have found inverters specifically for EL panels.  They run off of
>>5vdc.  I
>>>will post the information and price when someone tells me the size, 
in
>>mm,
>>>of the display!  Also, does anyone know where I can get an EL panel 
for
>>my
>>>calc?
>>>
>>>
>>>-Robert Brack
>>>
>>>reb@netride.com
>>>
>>>
>>>-----Original Message-----
>>>From: Richard Piotter <richfiles1@hotmail.com>
>>>To: ti-hardware@lists.ticalc.org <ti-hardware@lists.ticalc.org>
>>>Date: Thursday, February 12, 1998 10:17 PM
>>>Subject: Re: TI-H: Indiglo Backlight/keylight
>>>
>>>
>>>>
>>>>A small EL panel could easily be made outside the calc to shine on 
the
>>>>keys. It wouldn't need to be big. Maybe even a small metal mirror in
>>the
>>>>sliding cover. flip it up (it could be hinged) and it would reflect
>>the
>>>>LCD's light onto the keys. You'd just need very reflective metal and
>>>>you'd have two tabs that would stick into two holes drilled in the
>>sides
>>>>of the sliding cover. Nothing special. Wouldn't even need to snap 
into
>>>>place. The calc would hold it. up whenyou slide it into the cover.
>>>>
>>>>Richard Piotter
>>>>richfiles1@hotmail.com
>>>>
>>>>>
>>>>>
>>>>>Using your calculator in the dark is not the point.  In alaska in 
the
>>>>>winter time its real hard to see what you are doing on the screen
>>from
>>>>the
>>>>>shadows of the plastic.  If we needed to use our calcs in the dark,
>>we
>>>>>would need key lights too since you wouldn't be able to see the 
keys
>>>>(if
>>>>>you didn't know your calc to well...
>>>>>
>>>>>You can see the keys in limited darkness, but the screen is real 
hard
>>>>to see...
>>>>>
>>>>>>Call me stupid if this has been brought up before, but can we find
>>>>something
>>>>>>that will glow in the dark instead of using battery power?  I 
think
>>>>that
>>>>>>would be good.
>>>>>>
>>>>>>Tony
>>>>>
>>>>>
>>>>>
>>>>
>>>>
>>>>______________________________________________________
>>>>Get Your Private, Free Email at http://www.hotmail.com
>>>>
>>>
>>>
>>
>>
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>>
>
>


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