Seems you are leaving out some details, like you replaced the screen on your laptop. The issue may be that you got a wrong screen for your model, or the issue is not with the screen that you are trying to fix. Start at the beginning, what was your laptop doing that you had to replace the screen? Was it dropped, cracked, had the same issues as you are seeing now? You may have gotten a bad screen, or connected it wrong, or the issue is in several other places.