On 30 Aug 97 at 2:28, Steve Smith wrote:

> IMHO There are three 'common' methods of backlighting :-
>
> 1.     LED back light using a small number of leds.
>         cheap and doesent use much power but you can see where the
>         leds are.
>
> 2.     LED back light using light bars large number of leds
>         a bit more expensive and uses loads of power 2-5W at 5v
>         looks beter
> than 1 above
>
> 3.     Electroluminessent backlight
>         very expensive and requires a small inverter to generate the
>         voltage
> to run the lamp very pleasing to the eye.
>
> Most LCD's are available with option one or two and some are
> available with option three the last option is the digital watch
> soulition a small bulb at the end of the display. If the display is
> really small its tolerable otherwise it looks horriable.

IMAO it looks horrible - period.

Is the Timex Indiglo an EL display?  If so, how do they power the
inverter off those small lithium cells?  It's the only digital watch
lighting system I have any time for <g>
MikeS
<mikesmith_oz@relaymail.net>