I don't have any information on AI news backgrounds or high-definition wallpapers related to AI. However, I can suggest some popular options for you:

1. Unsplash: A popular website that offers a wide range of high-resolution photos, including many background images.
2. Pexels: Another great website that provides high-quality photos and videos, including some with an AI theme.
3. Wallpaper HD: A website that specializes in providing high-definition wallpapers, including many options related to technology and innovation.
4. Reddit's r/wallpaper: A community-driven subreddit where users share and discuss their favorite wallpapers.

You can also try searching for "AI wallpaper" or "artificial intelligence background image" on your preferred search engine to find more options.

If you'd like, I can try to suggest some AI-related background images from my knowledge database. However, please note that my knowledge base may not be exhaustive, and the availability of specific images may vary.