Vertical pink lines on left eye view only - repairable?

My HTC Vive has been packed away for a few months and I went to play it today but noticed the left eye screen shows several bright magenta pink vertical lines. The rest of the view is normal and it still works and loads up games etc.

On the direct view screen on the PC they don’t show but if I switch the Vive settings to have the headset as an extension of my computer desktop, I can still see them.

I have tried updating everything, numerous cables and even taking it near enough completely apart but nothing has resolved it. When I took it apart I saw nothing that looked damaged/out of the ordinary and everything connects well.

Is there anything else I can try to fix it? Or if it is hardware, is it something that can be replaced to fix it?