Try connecting an external monitor to the laptop's HDMI port and see what the display is like.
If it displays OK then you either have a faulty video cable, a faulty video cable connection at either end (motherboard or screen) or a faulty LCD screen.
If it displays the same as the laptop's screen, then you either have a GPU problem (most probably CPU as they are integrated) or a motherboard problem.
You say that you have only had it about a year. Verify when you purchased it and if it is less than 1 year from date of purchase (and if it was only 2-3 weeks past I would still try) then consult the warranty documentation that came with the laptop as to what you have to do to obtain a warranty repair or replacement.
If the warranty is no longer valid (and they won't help you, warranty wise) and the problem appears to be not CPU/ motherboard related, here is a link to the service manual for your laptop which may assist you in opening the laptop and allowing you to check connections etc.