Any physical stress that occurs is the most likely cause of damaging the screen. Some laptops can handle abuse, while others may have problems in a short time. In particular, grabbing a laptop by the screen puts a lot of pressure on the hinges, which are not designed to handle that. This can damage the hinges or surrounding materials, leading to a broken hinge or a non-working screen.
If your laptop's warranty is still valid, you should use it for a replacement as you will get the most suitable screen at no cost. If you can't detect any indicators of where the fault is, the only option is to take it to a repair center for diagnosis or take the risk of replacing the part you think is the culprit and hope that this will resolve the problem. Nowadays, customers have the habit of opening and closing their laptops from a corner, but this can cause stress or bend the screen enough to break the glass, even if done slowly and carefully. The process and complexity of replacing a laptop screen depends on the manufacturer and model.
When a laptop screen breaks physically (for example, a broken screen), it's usually due to physical damage. You can easily check if other parts of the laptop are working normally by connecting it to an external monitor or television. If it works normally, you can focus on replacing the screen. A laptop screen can even break if there's something as small as a little sand between it and the keyboard.
There have even been cases when customers stated that one day they opened their laptop and the screen just appeared this way, so it wasn't damaged. The images displayed on an external monitor must be correct. If the problem is the same as on your laptop screen, then the problem is your laptop, not the screen. While we've focused on significant damage to a laptop, don't forget that it's also important to take care of its battery over time.If you experience any issues with your laptop's screen, make sure to check if other parts are working normally by connecting it to an external monitor or television.
If your manufacturer's warranty is still valid, use it for a replacement as you will get the most suitable screen at no cost.