Russell McMahon wrote:
>> Hi all  ...  I am repairing some gear which uses LM24014 LCD (240 x 64)
>> panels.
>> The equipment has never had a backlight, and the customer has requested
>> that I source and fit an EL panel to illuminate the display.
>>
>> I have obtained some LFOB08 EL panels, which suit the display, but am now
>> looking for a suitable driver or invertor for them.
>> They could either be driven by 240v or a 5v or 12v supply off the 
>> existing
>> board . depending on the current draw.
>> Something ready made .. off the shelf, here in Australia, would be great.
>
> I'd recommend avoiding EL backlights if at all possible.
> YMMV but I have had horrendous experiences with them. They have quite 
> finite
> lifetimes, are somewhat dependant for lifetime on waveforms and voltages
> from the driver and they seem to do nasty things load wise as they age. 
> The
> ones we used were not overly cheap compared to eg LED units. At one stage 
> I
> supported a significant number of units which used them for a large LCD
> display, and the experiences with them were most offputting.
>
> Modern LED backlights are able to offer superb results at modest power
> levels. In some cases added LED front lights may do what you want.

I don't know... my experience is that LED backlights are many times as 
power-hungry as comparable EL lights.

Vitaliy 

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist