Colored vertical lines covering screen unless held or propped at a certain angle

[Samnrli_28]

Hi!

My laptop shows varying vertical bands of color across the entire screen unless I prop up the screen or hold it up at a specific angle. Any shift of the laptop makes the screen flash again,  with different patterns of colors and line widths each time. It seems to help if I pull slightly forward on the upper right side of the screen and hold it, or prop it similarly. 

When it first started, the screen could be fixed with a slight adjustment of the screen, but it gradually became worse until I now have to continually hold or prop the screen.

Based on some initial research, it seems that the problem might be with the LCD cable. If it is, I would love a recommendation regarding which specific replacement part I should get, and/or if there's a manual I could use to replace the part.

Thanks for the help!

[CherylG · Accepted solution]

It is impossible to find your Maintenance and Service Manual plus the part you need without knowing which model laptop you re dealing with. There is a reason you are asked for Model/Product ID when posting a question. Each model series has their own support page with Maintenance Manual, drivers,and other info.

https://support.hp.com/us-en/document/c00033108