I have been following this forum since I got my Panny 46gw10 (European version) about three months ago. The information provided by members has been invaluable for me. So I thought I should contribute to this forum by sharing my experience for the last three months with regards to IR.
I've got about 500 hours on the set so far and roughly 200 hrs of that with break-in slides. First of all I never had an issue that was visible during normal viewing. However, I occasionally inspect the screen when the room is dark and when there is no input, and I see ghost images, mostly from channels with solid white logos. From what I have seen on the screen, it seems to me there are two different types of ghost images that are left on the screen;
- If watch a channel with a bright logo for say 10 minutes and go to a no input screen in a dark room, I can clearly see a positive ghost image of the logo (i.e. if it is a bright logo the ghost image is also bright). I believe this is due to the residual charge left in those pixels that were displaying the bright white logo. This type of ghost image disappears immediately if watch some other full screen content.
- There are a few channels that have those bright white logos, and if I watch them 2-3 hrs, this time what I see is a negative ghost image of their logo (i.e. the pixels that were displaying those bright logos are darker relative to the rest of the screen). To clear this type of ghost image takes much longer (at least 3 to 4 times longer than the time it takes to create the IR). I guess this is what is called the temporary IR and is caused by the uneven aging of the phosphorus in those pixels. I think this can lead to permanent IR or more correctly a Burn In if these logos are displayed for too long. Of course I don't know how long is too long.
However, I should note that in either case the ghost image is not visible unless I am standing very close (about less than 3 fts) to the screen with no input etc. So this has not been a serious problem so far although I should admit that it bothers me a little since I have to pay attention to what I watch for how long. Apart from this, I can tell you that I am quitr happy with my decision to go with a plasma...
Cheers
I've got about 500 hours on the set so far and roughly 200 hrs of that with break-in slides. First of all I never had an issue that was visible during normal viewing. However, I occasionally inspect the screen when the room is dark and when there is no input, and I see ghost images, mostly from channels with solid white logos. From what I have seen on the screen, it seems to me there are two different types of ghost images that are left on the screen;
- If watch a channel with a bright logo for say 10 minutes and go to a no input screen in a dark room, I can clearly see a positive ghost image of the logo (i.e. if it is a bright logo the ghost image is also bright). I believe this is due to the residual charge left in those pixels that were displaying the bright white logo. This type of ghost image disappears immediately if watch some other full screen content.
- There are a few channels that have those bright white logos, and if I watch them 2-3 hrs, this time what I see is a negative ghost image of their logo (i.e. the pixels that were displaying those bright logos are darker relative to the rest of the screen). To clear this type of ghost image takes much longer (at least 3 to 4 times longer than the time it takes to create the IR). I guess this is what is called the temporary IR and is caused by the uneven aging of the phosphorus in those pixels. I think this can lead to permanent IR or more correctly a Burn In if these logos are displayed for too long. Of course I don't know how long is too long.

However, I should note that in either case the ghost image is not visible unless I am standing very close (about less than 3 fts) to the screen with no input etc. So this has not been a serious problem so far although I should admit that it bothers me a little since I have to pay attention to what I watch for how long. Apart from this, I can tell you that I am quitr happy with my decision to go with a plasma...
Cheers





















