Pixelation on my UV image text

I’ve added my UV texture, and I can see white pixelated borders around my red text. What’s causing this? also below are the nodes I’m using, The text is supposedly going onto a screen surface. which isn’t so realistic, any ideas what other nodes I can use to give it some screen surface feeling? I’ve seen some internet suggestions which are overkill over 10 nodes to get what’s meant to be a realistic glass reflection. But I’d like a bit more minimal node composition if it’s possible to get a nice result.

Change from Linear to Closest in your Image-Node.

Thanks for that, Worked perfect!