Thanks for your answer. Sorry for give you a late answer. You are right, I am not familiar with disassemble/reassemble my laptop. Do you know if it's difficult to repair mine ?
You are also right, if I rapidly open/close the screen back and forth, it comes back. I saw a video about this on youtube. I will try it this evening. I hope to achieve success.
Wish me a " Good luck "...
Bye bye