Hello People of Samsung I have a 40" 4K UHD LED 6 Series MODEL CODE: UN40KU6300 which had for about 2 Years and I notice these light Purple Patch Spot on my Screen. I did all the test and still shows these Purple haze discoloration spots on my screen one is in the right corner and the other one is in the Middle of the screen. " I would like to know what causes the Problem and if there is a simple FIX to remove these annoying big purple spots? If anybody know or have Youtube Video that can show me how to fix this problem Please post. To be honest I love this Samsung 4K TV and was about to buy a couple more for my business and House but, I have to reconsider because Samsung has not address this issue. After doing my research I notice a lot of People been having this same Problem with Purple Blueish spots showing up on their Samsung 4K LED TV SCREENS. Once again if anyone knows how to FIX and get rid of the Purple Clouds off the Screen Please reply.
I have head that it is a thermal issue with the TV. My purple spot is in the same place as the HDMI connectors come in on the back. My screen is 65" and flat.
This is NOT in any way specific to Samsung, my 22 month old LG 4k smart tv has developed 3 purple patches, each the size of my hand.
Searching Google, it seems this is a common problem with LCD screens of any make & it's caused by the white led backlighting turning purple/blue, which seems to occur at about the two year mark. Only way to fix it is to replace all the backlighting!
I was planning on buying an additional TV, but a more expensive "higher quality" one..... probably not worth it if they only last forfor two years.
This apparent problem with this technology needs looking at by consumer organisations / trading standards.
I think I figured it out. It is a failure of the backlighting. Which is repairable but which they don't want to fix. It requires taking the back off and replacing the harness which holds the LCDs in place. I think that reducing the backlighting can extend the life of these bulbs. Just an idea of mine. I have requested a refund. Let's see how long that takes.
The part to fix this costs about fifty dollars! But the labor may be hundreds. It is repairable at home. Check out youtubers who have documented the process.