gEDA-user: always build a prototype!

[Steve Meier]

The contrast ratio also has to take into effect ambient light. So unless
the oled absorbes all incomming photons (no reflections) then it isn't
infinite. Ok maybe in a cave.

Steve Meier

DJ Delorie wrote:
>> How is this possible, when OLEDs have been shown to last longer than
>> incadescent lightbulbs (which certainly last longer than one to two
>> years these days)?  Something sounds awfully fishy to me.
>>     
>
> If an OLED is run at full brightness with a fixed image, the image
> gets burned in.  Each LED "ages" according to its use - it gets dimmer
> with use.  In my case, I'm using the color that ages least, and
> running it most of the time at a tiny fraction of its max brightness.
>
>   
>> Personally, I think it's just a matter of economy of scale.  LCDs are
>> probably quite a bit cheaper to produce, and technology these days
>> rivals the contrast ratios of OLEDs.
>>     
>
> OLEDs have a nearly infinite contrast ratio - off is off, on is on.
> There is no "leakage" because there just isn't any light.  LCDs leak
> if the backlight is on.  Hence, OLEDs are ideal for alarm clocks,
> where they're used mostly in the dark.
>
>
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