Right on the heel of the release of the Samsung Galaxy Tab 10.1 and the Samsung Galaxy S WiFi 5.0 in the Philippines, we received a couple of reports of an “oil slick” problem appearing on the screen of the tablets.
This problem has been reported in other countries before and was documented earlier here and here.
The “oil slick” or “Newton ring” is some sort of liquid blotch that appears on the screen as shown in the photo below:

The issue appears to be caused by heat from the device and becomes worse with prolonged use.
We got some customers sending us emails about this issue. This one is for the Galaxy Tab 10.1:
Have you heard of the oil slick or newton ring issue on the Galaxy 10.1 which was released about a week ago? I’ve seen a number of reports about it since July from other countries. I got a unit during the launching and I found out that I have the same issue, in addition to a dead pixel. – Macjune
Here’s another one:
Currently, the “oil slick” is about 3.5″ long by 0.5″ wide. For the first unit I got last Sunday (21 Aug) from GB5, I only discovered the problem on Tuesday (23 Aug) when I removed the original “plastic” cover. It’s almost the same size right now.
The replacement (second) unit I received last Tuesday evening doesn’t have the “oil slick” problem when they released it to me. However, the next day after just a few hours of use, the problem re-appeared starting at the center and expands to the left and right of the screen. It slowly increased its length from just 0.5″ to 3.5″ now.
The problem is quite annoying if you’re running an app with white or black background or if the LCD is off. However, the performance of the tab is not affected somewhat. Although there are apps that I installed which seems the tab is not responding to touch like the Pumpkins vs Monsters and sometimes even using the Android Market app. – Edwin
These could have been isolated issues and may happen to a small batch of units shipped to the Philippines so we’ve sought comment from Samsung Philippines about this. Will update once we get official word.
Update: Samsung Philippines responded to our inquiry and admitted that they are aware of the issue:
Samsung Electronics Philippines Corporation is aware of limited number of customers who have experienced “watermarks” appearing on the screen of their GALAXY Tab 10.1. Affected customers are encouraged to contact the Samsung customer service center at 5805777 to receive further assistance. Samsung is committed to providing a high-quality experience for its mobile users and fulfilling our complete commitment to customer satisfaction.
We received a few more comments from people affected with the same issues on their tablets since we posted this story. I suggest contacting Samsung on the number provided above.


have the same problem here.. What if i bought this from amazon in the states? Do you think samsung philippines would still replace the product? Wala pang 1 month ito nagamit at ganito na siya may oil slick problem sa gitna…