Apple dives into display-making to cut reliance on Samsung
One exciting thing about microLEDs is they can achieve much higher pixels per inch. Before Apple’s big Retina push, PPI was around 80-120. It went to around 200-300 with Retina. Researchers making microLEDs in the lab have gone as high as 6000 PPI, and something in the low thousands seems quite plausible for commercial technology. Apple could conceivably bring in “Double Retina” at 800 PPI, or they could go straight to “Double Double Retina” at 1600 PPI.<p>It’s often claimed the human eye can’t see above 300 PPI; this is even more misleading than the claim that the human eye can’t see above 30fps (we all know there’s a distinct visual difference between 30fps and 60fps, and most people are able to detect the difference between 60fps and 144fps as well). The PPI limit of the eye depends on how brightly lit the subject is and how far away one is viewing it; for a real upper limit you might use something like the maximums of <a href="https:&#x2F;&#x2F;lobsangstudio.com&#x2F;ls_pixel.cfm" rel="nofollow">https:&#x2F;&#x2F;lobsangstudio.com&#x2F;ls_pixel.cfm</a> which says at 6 inches viewing distance under 10,000 lux (bright sunny day), the eye could go as high as 1200PPI. The fact that microLEDs offer the potential to go beyond even the maximum of generous estimates in best conditions is very exciting, it’s like Formal Proof version of Retina rather than the current Good Enough.