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Old 25th November 2004, 10:49 PM   #1
Maples is offline Maples  United States
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Default Need to assemble a clock.

Anyone here know how to take a standard LCD clock, invert it and give it a backlight?
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Old 25th November 2004, 11:15 PM   #2
gmarsh is offline gmarsh  Canada
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To invert it, flip the polarizer sheet (the piece of plastic on front of the LCD) upside down.

To backlight it... depends on how you want to do it. You can edge-light it with LED's, which invariably looks bad.

Or you can peel the reflective stuff off the back of the LCD and put an EL panel behind it, and rig up an inverter somewhere in the clock. Or use a piece of frosted plastic with edge-lit LED's, which most cellphones do.
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Old 26th November 2004, 12:54 AM   #3
Maples is offline Maples  United States
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Quote:
Originally posted by gmarsh
To invert it, flip the polarizer sheet (the piece of plastic on front of the LCD) upside down.

To backlight it... depends on how you want to do it. You can edge-light it with LED's, which invariably looks bad.

Or you can peel the reflective stuff off the back of the LCD and put an EL panel behind it, and rig up an inverter somewhere in the clock. Or use a piece of frosted plastic with edge-lit LED's, which most cellphones do.
The clock I am thinking of doing this with would be this one:
http://www.bellautomotive.com/asp/pr...s.asp?id=23059

Would there always be a polarization sheet? I've seen LCD clocks that didn't have any peelable plastic on the front of them that I could take off and flip.. in like a calculator for example.
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Old 28th November 2004, 05:19 AM   #4
Maples is offline Maples  United States
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