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24x2 LCD, EDT # EW24210BFW help choosing backlight inverter
http://forum.lcdinfo.com/viewtopic.php?f=6&t=2241		 Page 1 of 1
Author:  jakegaisser [ Sat May 26, 2007 11:25 ]
Post subject:  24x2 LCD, EDT # EW24210BFW help choosing backlight inverter
24 CHARACTER X 2 LINE LCD EL Backlite LCD:
EDT (Emerging Display Technologies) # EW24210BFW
http://www.allelectronics.com/cgi-bin/item/LCD-113/365/24_CHARACTER_X_2_LINE_LCD_.html

When I purchased this display I figured it would wire the same as the LED backlite ones, but this is not the case EL backlights require an inverter.

I have the display functioning wired to my computers LPT port, minus the backlight of coarse, using the following diagram:
http://www.markuszehnder.ch/projects/lcdplugin/images/lcd_parallel_8bit.gif

I'm trying to find the least expensive way to power the el backlite of this LCD, I plan on using it to display information of my computer and also the song playing of winamp. Which is working great but I would love to get this Displays backlight powered up and working.

NS-102 : http://inverter-lcds.shopeio.com/inventory/details.asp?id=1140&cat=Lcds&sub=Inverter

So far the least expensive el backlight inverter I have found is $3.00 but im not even sure its the correct inverter for my application. The data sheet for the NS-102 inverter shows it works for 20-30 CM^2 and if im correct my display is only 4.2 CM^2? (am I right?) Any guidance on this would be much appreciated, while im no expert with electronics ive become pretty handy with my soldering iron and im down for whatever.

I've also found these EL Inverters, but im not sure about them at all:

http://www.vishay.com/displays/list/product-37286/
http://www.ergpower.com/pub/el.asp?catid=119
http://www.ave-nl.com/epistandard1.html
http://www.displaysolutionsgroup.net/pdf/5D-1_Inverter.pdf
Author:  jakegaisser [ Sat May 26, 2007 20:26 ]
Post subject: 
Well I went ahead and just purchased the NS-102 :

http://inverter-lcds.shopeio.com/inventory/details.asp?id=1140&cat=Lcds&sub=Inverter

It was only $3.00 and as far as I can tell its exactely what I need, and I was able to purchase it online. It's always best to find the best possible deal... but I dont think I was likely to find a better deal than this.

ALSO, I have all the pins wired and working with my computer, but pins 15 and 16 of the lcd header I have not wired yet, also there are two large pins on the other side of the lcd board labeled 17 and 18 that appear to wire straight into the el backlight.

How do I go about wireing this inverter to the EL backlight.... do I just wire the ground, positive in and out the inverter to the backlight or do I also need to put in some resistors? I have never wired an lcd with an el backlight before.

Thanks so much to everyone that can help :)
Author:  jakegaisser [ Mon Jun 04, 2007 20:05 ]
Post subject: 
no new responses, bummer :cry:

well, im afraid to simply try hooking things up and burning something out, the inverters arrived today but i have no diagram/schematic for wiring this to my lcd.

Any Veterans here able to give me a hand?
Author:  cfacer [ Fri Jun 27, 2008 7:29 ]
Post subject: 
Jake,
Any luck using that NS-102 inverter? I have the exact same LCD and the documentation still sucks!

-Carl
Author:  jakegaisser [ Fri Jun 27, 2008 7:52 ]
Post subject:  Yes It worked great for me, here is a diagram that i created
Yes It worked great for me, here is a diagram that i created

http://jakegaisser.googlepages.com/wiring.gif

this diagram is based off another diagram to include how to wire in the NS-102 inverter.
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