Sony unveils its 'true 4K' projector that costs just $5,000
 

Buying a "4K" projector can be tricky since many companies have displays have lower resolutions and use technology like pixel shifting (JVC and Epson) or special processing (Optoma) to make up for the missing dots. Sony's SXRD technology brings every...
https://www.engadget.com/2017/09/07/...-4k-projector/