Samsung's panel manufacturer, Samsung Display, has taken to this year's 2018 Display Week International Symposium (SID), to demonstrated several new display technologies, including a screen module with a pixel density of 1,200 ppi. Of course, that doesn't quite edge out Google and LG's 120Hz panel, set at 4.3 inches and 1,443 ppi. However, display technology has been the single largest drawback to VR tech and it does mark at least the second such screen to be shown off in a small form factor. For Samsung's part, the company actually showed three displays in total. Those could be viewed as steps from the budget end to the top-tier, once demand grows enough to bring the likely pricing of those down. It's worth pointing out that type of information is not available as of this writing, but this is bleeding-edge tech and primarily a concept, thus being very expensive for the time being.
The first display shown by Samsung was set at 3.5-inches, with a resolution of 1440 x 1600 and a pixel density of 616 ppi. That's a 90Hz display panel, which means it falls just short of what most industry experts believe is required for a truly disruptive VR experience. The second display shown was also at 90Hz but bumped size down to 3.2-inches and resolution up to 1824 x 1824 in a square format. That didn't quite match the final display with its 806 ppi pixel density, either. The last display, meanwhile, pushed the envelope with a pixel density of 1,200 ppi and a refresh rate of 120Hz at 2.43-inches. That's was accomplished at a resolution of 3840 x 2160, with a brightness of 250-nits. While that doesn't quite match up with the competing screen mentioned above, it does that in a much smaller format which would arguably be more useful for VR - assuming it can be scaled up while adding more pixels.
Having said all of that, more than anything else, this year's SID event has certainly shown that tech companies aren't holding back when it comes to moving the industry forward. Samsung didn't stop at VR panels, either. The Korean tech giant also introduced a new take on sound with its "Sound on Display" demonstration. That would allow sound to be generated through a display panel via vibrations, which is a novel and possibly revolutionary concept in its own right. However, it remains to be seen whether any of these new displays make it into new products anytime soon. Samsung's most advanced display currently in production is a 3.5-inch panel set at 615 PPI, with a refresh rate of 90Hz. So it's probably a good idea to hold off on the excitement for now.