Re: TI-H: Indiglo Backlight/keylight

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Indiglo Backlight/keylight
From: "Richard Piotter" <richfiles1@hotmail.com>
Date: Fri, 13 Feb 1998 16:03:11 PST
Reply-To: ti-hardware@lists.ticalc.org

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
>>>
>>>
>>>
>>
>>
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>
>


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