My tablet is having a shaking screen with horizontal lines

There is a lot of black thin lines that slowly appears after a long time no use like after a few hours no use the screen is totally fine then a few minutes later this %#*@ lines and each line that works like shakes to other lines. I have tested it with an external display so it's definitely not a gpu issue or driver issue can anyone help? Thanks!

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crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
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