MacBook Pro Retina display burn-in?

johns1 wrote:

LG is now a major producer of high resolution displays, not budget tier. They are not anything close to their roots as Goldstar. They are now producing very cutting edge 4K displays for sale even before Samsung gets their act together. see http://www.engadget.com/2012/08/22/lg-4k-84-inch-uhdtv/

IMHO this discussion about LG AH-ISP panels being inferior to Samsung PLS (variant of ISP) offers little proof that the problem is widespread, yes obviously there are some bad panels out there.

As one person observed in Macumors.com: Reading posts on here as well as on Apple forum (over 105 pages) kinda makes your go crazy in thinking that something better is out there, when some say you must exchange until you get samsung and other saying there is no difference.

I ran the 15 min test twice both normal and inverted that RetinaUser supplied, nada IR for my LG based panel (LP154WT1-SJA1). My laptop is more then couple of weeks old.

They have always been a major producer. That doesn't have anything to do with their quality. Just because they can light the pixels doesn't mean they are the right colors 😉 Kia is a major producer of cars - they're still budget tier.

You're quite in denial over this issue and I'm not sure why that would be. Maybe you have an LG and you just don't want to believe that you bought a bad product.

With this many people seeing the issue, and the same people seeing the issue on all 4 LGs they get, it's quite obvious that it's a fundamental product issue. If it was only some, you would have more people saying that their replacement LG is fine. No one has said that. They spot the problem on every new LG until they get a Samsung.

bjiibj

Here's something really interesting:

EVEN WITH THE BACKLIGHT COMPLETELY OFF, I can still make image retention happen:

1. Ensure that there is no checkerboard image retention currently

2. Start the image retention test app with checkerboard pattern

3. Turn off the backlight by using F1 repeatedly until it is off

4. Wait until the ding (I waited 4 minutes)

5. Turn the backlight back on

6. Hey presto, the image retention checkerboard is there in the now grey screen

So obviously the backlight has nothing to do with the image retention, and obviously the pixels are still being held to the values they need to be to display the image, even though the backlight is not on and thus no light is coming through the display, and it is the holding of the pixels at a certain opacity that is resulting in an accumulation of charge that is causing image retention.

Good, IR as it was explained/discussed was exclusive to LCD independent of the LED backlight. Now with you posting this, we can end this turn up brightness all the way aspect of checking for IR. 😎

Hi bjiibj,

thank you for your feedback and for the hints.

I have modified the application and uploaded an updated version, it can be found at the url:

http://www.mediafire.com/?1jwh6o6ql1wmiww

You can now:

• Temporarily visualize the gray background pressing the key C
• Copy the result code on the clipboard clicking it
• Use a new pattern, the RGB chessboard

Let me now explain as the result code is formatted:

T1[Min][Sec]T2[Min][Sec]P[Pattern_Code]G[Gray_Tone]B[Brightness]I[Inversion_Flag]

where the parameters are:

• T1: the duration of the pattern visualization in minutes and seconds;
• T2: the time elapsed between the end of the pattern visualization and the test completion (the image retention duration) in minutes and seconds;
• P: the code of the pattern used for the test. The possible values are the following:
  • 0: No pattern
  • 1: Chessboard
  • 2: Text
  • 3: RGB Chessboard (new version)
• G: The level of gray in use at the test completion time. It is expressed in hexadecimal notation, between 0 and FF;
• B: The minimum display brightness level retrieved during the first phase (T1);
• I: The "inverted mode" flag
  • 0 for normal mode
  • 1 for inverted mode

As an example, your code translates as follows:

T1401T2536P1G5aB30I0

• T1401: T1 interval (pattern visualization) duration: 4 minutes and 01 seconds;
• T2536: T2 interval (gray background) duration: 5 minutes and 36 seconds;
• P1: Pattern used 1 (Chessboard);
• G5a: Gray tone in use when the test finished 5a (90) ;
• B30: Minimum Brightness level retrieved during the first phase (pattern visualization), 30;

  This indicates that you have not performed the test at full brightness for the entire duration of the pattern visualization (but, as you noticed in your last post, this seems to be irrelevant)

• I0: Inverted mode 0 (normal mode).

To keep the measures we take comparable between each other I recommend to finish the test only when no trace of image retention is noticeable on the display.

Ronald Burgundy

They have always been a major producer. That doesn't have anything to do with their quality. Just because they can light the pixels doesn't mean they are the right colors 😉Kia is a major producer of cars - they're still budget tier.

You're quite in denial over this issue and I'm not sure why that would be. Maybe you have an LG and you just don't want to believe that you bought a bad product.

Well LG and Samsung are both South Korea corporations, and both companines have their positives and negatives. Just be glad you are not dealing with Samsung customer support for solutions.

I'm in denial, what the heck are you talking about? I seen IR on laptop displays, even a little on 1 of the 2 MPBr's I owned. Just because I am discussing not all LG panels has bad IR that I am in denial? What a argument. 😝

Here I am again! Brought my rMBP in for repair, got it back with another LG display.

Same day: No IR problem at all

After 1 day: Nearly imperceptible IR

After 2 days: Same IR as my previous faulty LG display

Conclusion: It gets worse over time. I'll contact Apple again!

shadow82x, download this app:

http://www.mediafire.com/?1jwh6o6ql1wmiww

Could anyboby with IR problems please run the Apple Hardware Test? It would be very interesting to hear about the results!

my-v wrote:

Could anyboby with IR problems please run the Apple Hardware Test? It would be very interesting to hear about the results!

I did and no problems were found.

I did it too, no problems found.

I did the test and for the moment no IR at all. Here is the code I received --- T11459T2039P1G5aBf4I0.

I'm glad to hear everything is ok for you, Leoul.

Is yours a new rMBP?

I did the hardware test and I have no IR on LG.

Hardware test gave me the error: 4SnS/1/40000001: IDOR-0.000

After a quick google search, the error was because I didn't have it plugged in, so all good.

@RetinaUser Yes it is a brand new rMBP bought 2 days before.

Leoul wrote:

@RetinaUser Yes it is a brand new rMBP bought 2 days before.

Try again in a few weeks; though you may not like the result ...

I have had my mac for a month now, LG screen. I see faint boders of any window or page if left for more than 5 min.

I have seen IR of only windows and webpages or any image left on screen for more than 5 min but never seen a Dock IR. How is it that the Dock part of the screen manages it self from IR ? Any possible answer for that ?