Meta Platforms Inc., seeking to turn its smart glasses lineup into a must-have product, on Wednesday unveiled its first version with a built-in screen.The latest model, the $799 Meta Ray-Ban Display, features a screen in the right lens. It can show text messages, video calls, turn-by-turn directions in maps and visual results from queries to Meta’s AI service. The subtly integrated display can also serve as a viewfinder for the camera on a user’s phone or surface music playback.Speaking at the company’s an ...