Unstable LCD Image Problems

For a while now I have been having problems with my LCD screen. If kept still and stable it works fine the majority of the time, but vibrations and movement cause the image to freeze and slowly dissolve. Some moving of the screen back and forth, or pressure around the screen can help restore the image but it seems pretty random. Once it is stable it can be perfectly usable for hours.

The external video port works fine.

It’;s a laptop I’ve had since 2009/10 so is a little long in the tooth, but does what I need. If I repair is likely to be simple I’ll happily have a go or find an engineer, but I don’t want to spend huge money on an old device.

I’ve attached a video (yes, I know it’s installing a Windows update, but don’t hold that against me!). In the video I caused the effect by touching the screen, and then show how quickly the image can be restored - but not always for much time before it goes again.

Thanks in advance.