[Q] Red lines on screen. Is LCD dying? - Galaxy Tab Q&A, Help & Troubleshooting

Getting squiggly red lines & blotches in screen. However, it isnt always present. Only with certain apps, and while watching videos. Is my sceeen dying and is there a fix?
Pic w/ lines
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Home screen, no red lines

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[Q] strange blue lines on screen

Hi,
I have installed touchflow 2d after resetting my phone.Then I have seen some strange behavior in some screens like email,messages....
blue color horizontal lines on the sreen.Is that something with theme itself?
how do I avoid that?
Please seee the attached image
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Thanks

Horizontal lines on the screen. Defect?

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You can see lines on upper part of the display. They are on the whole display actually but only able to be seen on grey background.
As you can see, if i take a screenshoot, they are visible on other devices, too.
Is this an indicator of a software problem, rather than hardware one?
What do you think?

Black line in screen after replace

Hi,
After replacing broken LCD with a new one, a strange line appears, especially in Whatsapp, as in the photo attached.
When you disable the HW overlay, the line disappears. Any idea what could be?
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What is "HW overlay"?

Question Wierd black "spot" on Lower right corner

As you see on the photo i Got a black spot on bottom right corner. Phone is Like 3 weeks old and i THINK its been there ever since.
Help?
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That's a hardware issue. It can happen to any amoled screen.
https://i.redd.it/0iuwappok2q21.jpg
https://ae01.alicdn.com/kf/H5bc13be9c320421789a9185245275529q.jpg_q50.jpg
https://media.karousell.com/media/photos/products/2018/04/28/samsung_galaxy_s8_plus_minor_black_spot_on_edge_of_screen_1524902643_149b162c.jpg
https://storage.googleapis.com/support-forums-api/attachment/thread-15886345-3903692326010673217.JPG

Question The glow on the AMOLED screen

Is it normal that such a subtle glow appears on the border between black and some very bright, usually white color? This doesn't just apply to fonts.
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