Display issue

[kaensou]

My laptop screen is filled with green and pink lines. These all lines mainly originated from a single horizontal line which is 1cm below the the top end of the display. Please help me out this issue.

[BeemerBiker]

See if you can identify which category your problem falls in. 

Different types of screen problems shown using google images

Card problems show artifacts
Display problems due to backlight failures
General display problem: monitor or GPU
Flickering indicate the driver needs to be updated.

Problems caused by room lighting

Glare is reflections of items: 10 ways to reduce glare
Adaptive lighting problems: brightness auto adjust not working
1 - turn off or on auto adjust
2 - For external monitor try the On Screen Display menu.

Does the problem go away if you connect the notebook to an external monitor or TV?

[kaensou]

I haven't connected with any external monitor or TV but the problem persists when im in bios.

[BeemerBiker]

If in bios that is a hardware problem.

Click here to check warranty
You can also contact the closest authorized service center
If you have (or get) a service order number you can check for status here.

How to contact an HP agent:

Sign in to your support page
Select the product you need help with and scroll down to support options.
Select "Contact us". You can change country and language if necessary.
If your HP product is out of warranty you can extend your PC coverage with HP Care Packs as described here.

Open up the the laptop and use an air duster.  Possibly that will help.