Grainy screen quality on new HP Spectre x360 (15" display)

[Emma47]

Bought a brand new HP Spectre last week, arrived fine and all seems to be working except the screen display. It has a grainy quality to the screen image, sort of like what you get if you install a low quality screen protector on your mobile, and seems to reflect light weirdly causing parts of the screen to be very dark and others to be fine as well (although this part I am less bothered by). The issue is most prominent where the screen is white and doesn't show up as much on black.

I have tried updating the relevant drivers and that made no difference. Have also tried connecting to an external display and that didn't show the same grainyness. At this point, I can't tell if the screen is supposed to be this way due to its touchscreen nature or if there is a genuine problem with it. Any guidance on next steps, or if this is how it is "supposed" to be would be welcomed. 

[Echo_Lake]

@Emma47
Thank you for posting on the HP Support Community.

apologize for the inconvenience caused, as it new computer you can check with the store for a replacement computer if you feel that you've received the faulty product. 

And, also you can reach out to our Support and our Support Engineers should be able to sort this out. HP Support can be reached by clicking on the following link: www.hp.com/contacthp/

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.