Samsung S6 edge + display broken

[AC Question]

I dropped my Edge+ and a white horizontal line appeared on the screen. The part below the line started to shake, but the phone was still working. Few minutes after it just crashed, now it's all black, when I try to unlock it it shows some white flashing lights but that's it. The screen is not broken. Does this mean I have to replace the display or what?

 

[belodion]

A remote diagnosis of the damage is hardly possible, alas. It needs expert attention.