Is this a graphics card or LCD problem?

[lightningsalesuk]

This mac has been used for a number of years and has these faint lines running up the screen in places, almost like they are moving. They are very faint but become more visible up close on a dark screen.

 

[keysofanxiety]

LCD.

 

[lightningsalesuk]

LCD.

Thank you, I will purchase a new one for it then.