Why is my screen dark except for a small band at top when I turn it on

Lg TV 42lc7d

My Lg 42”flat screen has a dark screen when first turned on in the morning for 5 - 10 min. Sound is normal.

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Can you show us pictures/video of the issue? This can help us further diagnose the issue

Adding images to an existing question

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@carlab57089 what happens after those 5 - 10 min? As stated above, pictures will help.

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