My Note 4 screen works good, but not the display

hello,

i'm pretty new here in this forum but i really need anyones help because i can't find a solution to my note 4 problem, anyone can help me with this? sometimes appears, sometimes doesn't, but when it does, its stays a looooong time and its really annoying, but the screen works normally, any suggestions?

http: //i.imgur.com/ 93CHRLL .jpg

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