One of the biggest reasons virtual reality hasn’t taken off is the clunky headsets that users have to wear. But what if you could get the benefits of virtual reality without the headsets, using screens that computationally improve the images they display?That’s the goal of the startup Brelyon, which is commercializing a new kind of display and content-rendering approach that immerses users in virtual worlds without requiring them to strap goggles onto their heads.The displays run light through a processing layer before it reaches users’ eyes, recalculating the image to…