Did you ever get screen burn-in issues

Other Engineering Diciplines
Post Reply
User avatar
SemiconductorCat
Major
Major
Posts: 455
Joined: Mon Aug 22, 2011 8:42 pm
Location: currently in hyperspace

Did you ever get screen burn-in issues

Post by SemiconductorCat » Mon Apr 15, 2013 1:49 am

Somebody will think that screensaver just a entertainment item or something which you could
use to show and share your impressions with others. But 'screen-saver' originally preserves it's
name. It saves your screen.

This is a issue which is related with all kind of displays. CRT to Plasma displays we got this issue.

Did you ever experienced something like this before?
Image
( It's safe to turn off your computer now ! :P anyway ).

And yes with LCD and LED displays also vulnerable to this,
Image

On CRT this is due to burning of the phosphors film behind the screen. In LCD's this is due to pixels losing their
capability to return to the previous polarization.

White papers around the internet describes that modern OLED displays could start to degenerate their LED
illumines in decades. But we got more than 5 decades older cinema theaters in towns. So this is applicable
here too.


Screensavers should be implemented to countermeasure this action. Most of them are trade secreats, but
they are secretly rotate the picture little bit, shift the picture left or right and they use many techniques.
Some display controllers/hardware have implemented this feature in hardware.

So next time when you do programming for the embedded world, take this issue into serious consideration.
Specially when you writing firmware for devices which should run 24hours for several years.

In operating systems , I have searched about white papers on how each and every operating system defend
against this issue.
But I unable to find any. Please feel free to add it to the discussion if you found.

There are application software exist to recover non-critical screen burn-in issues.
Such as for android.
https://play.google.com/store/apps/deta ... n_in&hl=en


Source:
http://en.wikipedia.org/wiki/Screen_burn-in

References:
http://electronics.stackexchange.com/qu ... creensaver
Post Reply

Return to “Other”