I bought a Samsung UE50JU TV 6 months ago and I've noticed that when the screen is totally white, there are noticeable dark patches on the screen particularly in the corners. Is this normal, and can I claim this under the warranty?
Dark patches on TV
Probably not?, obviously depending how 'bad' it is, but edge lit LCD screens are unlikely to have totally uniform brightness over the entire screen - although LCD's are far better than CRT's even were 
As it's taken you six months to even notice it, then it can't be very obvious.
As it's taken you six months to even notice it, then it can't be very obvious.
Originally Posted by MR_Pitkin:
“Logged it with Samsung now.”
“Logged it with Samsung now.”
Please keep us informed as to your progress, and good luck
OK, so I've had the following response:-
I have looked into the pictures you have sent in to us in your attatchment and to much consideration, unfortunately this is working within the TV specification.
On almost every brand TV that you purchase will have some kind of clouding on the screen which is not noticeable at first. This is down to the lighting in the room which makes it more visible. This is why when you go into a store the lighting is really bright and the screen display is also bright.
I can see from the images that you have sent in to us that the screen brightness is really bright and the room is really dark.
On our Samsung TV's we have a feature to eliminate this called ''Eco Solution.'' I suggest that you turn this on and then monitor this to see you notice any changes.
Settings - System - Eco Solution - Turn this ON and set the Min backlight to 5.
I apologise for the frustration and the inconvenience that this may have caused you.
I've turned Eco on as suggested, but the patches are still clearly visible on a white background. Surely this can't be 'working within specification'?
I've had countless TV's over the years and have never encountered this.
I have looked into the pictures you have sent in to us in your attatchment and to much consideration, unfortunately this is working within the TV specification.
On almost every brand TV that you purchase will have some kind of clouding on the screen which is not noticeable at first. This is down to the lighting in the room which makes it more visible. This is why when you go into a store the lighting is really bright and the screen display is also bright.
I can see from the images that you have sent in to us that the screen brightness is really bright and the room is really dark.
On our Samsung TV's we have a feature to eliminate this called ''Eco Solution.'' I suggest that you turn this on and then monitor this to see you notice any changes.
Settings - System - Eco Solution - Turn this ON and set the Min backlight to 5.
I apologise for the frustration and the inconvenience that this may have caused you.
I've turned Eco on as suggested, but the patches are still clearly visible on a white background. Surely this can't be 'working within specification'?
I've had countless TV's over the years and have never encountered this.
Originally Posted by MR_Pitkin:
“
I've turned Eco on as suggested, but the patches are still clearly visible on a white background. Surely this can't be 'working within specification'?
I've had countless TV's over the years and have never encountered this.”
“
I've turned Eco on as suggested, but the patches are still clearly visible on a white background. Surely this can't be 'working within specification'?
I've had countless TV's over the years and have never encountered this.”
I refer you to post #2 in this thread
Why are you watching TV in the dark?, it's not designed to be watched that way.
Originally Posted by Nigel Goodwin:
“I refer you to post #2 in this thread
Why are you watching TV in the dark?, it's not designed to be watched that way.”
“I refer you to post #2 in this thread
Why are you watching TV in the dark?, it's not designed to be watched that way.”
I'm not watching TV in the dark, just the corner of the room where the TV is situated is darker than the rest of the room.
Turning Eco on just makes the picture even darker, but still doesn't get rid of the problem of the clearly visible dark patches, which are clearly 'burned' into the screen.
This is simply not acceptable and I shall be escalating this.
I bought and returned two edge lit LED TVs back in 2010 because of this. Thankfully I bought them from John Lewis who had a no quibble returns policy. It's because edge lit LED panels are only backlit from the edges and corners of the screen and then the light is distributed across the rest of the panel by a plastic diffuser. This causes cloudiness where some places show up as brighter than others. It looks worse the larger the panel gets. My solution at the time was to instead buy a CCFL backlit TV which is uniformly lit. You can also get LED TVs which are lit by light panels behind the panel itself rather than from the edges but these are more rare and more expensive.
