I recall a few times, though their "appearance time" is very short.

- Computer screen.

- Phone screen. (not smartphone though) one of those old nokia's with the buttons

- Some sort of semi-futuristic advertising screen.

But it's strange, because those screens are so bloomy and blurry that I do not actually "know" what is displayed until I moved slightly past this part of the dream. Sorta like when you're really drunk and information of your surroundings is delayed.