I've read that - it's 5% possible, the rest was neglected control circuitry.
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Captivate Screen - Burned In Image
- Thread starter gary1949
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- samsung captivate
DaNaRkI
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Going along with what algs26 said:
Wikipedia - Screen Burn-in and Wikipedia OLED
OLEDs like LEDs and regular lightbulbs can burn out over time. Unlike the other two, OLEDs don't just stop working but slowly lose their ability to generate as strong of a brightness (not all to different from how the phone's battery loses its ability to hold as great a charge after extended use.) Tho this does take a considerable amount of time; thousands of hours.
What most ppl (myself included) have come across is what looks like a burn-in but is not. Instead it's a case of having those OLED's (for what ever shape is remaining) getting overly excited/charged and it taking a few min to work off the retained electricity.
What EarlyMon, talks about is more for a "stuck" or "bad" pixel, where in one pixel will stay at a random color, regardless of what the rest of the screen tries to do. In which case, as explained the control circuitry is stuck and is feeing the info to that pixel to show say green at all times.
To gary1949: what you describe sounds like it really is a burn-in... since blue has the shortest working life, and you describe that the image is being yellowish (a white LED is made by blending blue and amber, in a screen like this it's a mix of Red, Green and Blue) In theory since what's really happening is that the OLEDs are burning out you could erase the image buy equally aging/working the rest of the screen to match the weakened ones.
I'ed say your a bit out of luck, and to replace the phone. You might want to look into something else for an all night clock/alarm.
You could try this app Appbrain.com - Screen Filter to darken the screen so that those blue's are not used up as quickly.
As for everyone else who has the screen on all night, these OLEDs burn out by use, any use and all use, blue is the first to go, so never set anything to show as blue for hours at a time, white uses blue so no white or shades of gray, red and green or shades of them are better, but they too will die out over time.
Wikipedia - Screen Burn-in and Wikipedia OLED
OLEDs like LEDs and regular lightbulbs can burn out over time. Unlike the other two, OLEDs don't just stop working but slowly lose their ability to generate as strong of a brightness (not all to different from how the phone's battery loses its ability to hold as great a charge after extended use.) Tho this does take a considerable amount of time; thousands of hours.
What most ppl (myself included) have come across is what looks like a burn-in but is not. Instead it's a case of having those OLED's (for what ever shape is remaining) getting overly excited/charged and it taking a few min to work off the retained electricity.
What EarlyMon, talks about is more for a "stuck" or "bad" pixel, where in one pixel will stay at a random color, regardless of what the rest of the screen tries to do. In which case, as explained the control circuitry is stuck and is feeing the info to that pixel to show say green at all times.
To gary1949: what you describe sounds like it really is a burn-in... since blue has the shortest working life, and you describe that the image is being yellowish (a white LED is made by blending blue and amber, in a screen like this it's a mix of Red, Green and Blue) In theory since what's really happening is that the OLEDs are burning out you could erase the image buy equally aging/working the rest of the screen to match the weakened ones.
I'ed say your a bit out of luck, and to replace the phone. You might want to look into something else for an all night clock/alarm.
You could try this app Appbrain.com - Screen Filter to darken the screen so that those blue's are not used up as quickly.
As for everyone else who has the screen on all night, these OLEDs burn out by use, any use and all use, blue is the first to go, so never set anything to show as blue for hours at a time, white uses blue so no white or shades of gray, red and green or shades of them are better, but they too will die out over time.