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Hitachi's 6.6-inch IPS tablet display with amazing 302 ppi
What you're looking at is not just another display. This little beauty throws 1600 x 1200 pixels across a 6.6-inch transmissive IPS panel for an amazing 302 pixels per inch density. That's just shy of the 326 ppi density seen on Apple's 3.5-inch Retina Display (and now Sharp IS03) and blows away the 132 ppi density of the iPad's 10-inch 1024 x 768 IPS panel or 169 ppi density of the 7-inch 1024 x 600 pixel Galaxy Tab and BlackBerry PlayBook. Even at that size, the panel still manages an 800:1 contrast ratio and 400 nits of brightness. Unfortunately, we don't have any word on when we can expect these to ship in volume, though we wouldn't mind seeing it show up in Apple's rumored 7-inch iPad -- anywhere, really. P.S. To fuel speculation, this Hitachi panel shares the same 4:3 aspect ratio as Apple's iPad. Just sayin'.
The iPhone's display blows away every other display we've ever seen
In resolution and detail that is -- there has been a lot of fuss about the iPhone 4's new so called retina display and now that we've had some time to check it out ourselves we have to say, there hasn't been enough fuss about it. As videophiles we understand that resolution isn't everything, but boy is it a lot. Now we realize that all the talking in the world can't convey how awesome the screen displays text and video, so instead we crunched a few numbers to put things into perspective. The advertised pixels per inch (PPI) of the iPhone's display is 326, but what does that really mean? Well the calculated PPI of our 1080p 60-inch Kuro: it's a meager 36 -- luckily we don't sit 12 inches away from it. In fact a 1080p TV could only be 7-inches if it wanted to match that PPI. A 60-inch HDTV would have to have a resolution of 16815x9500 to match it -- gasp -- which is four times the horizontal resolution of 4k! Speaking of which, a 4K display could only be 14-inches. But the iPhone isn't like an HDTV; its main purpose is to display text, not video. So what about a 20-inch PC display, how many pixels would it need to match the PPI of the iPhone? Try 5600x3500, which is about double the horizontal resolution of WQXGA at 2560x1600. But like we said at the start, resolution isn't everything and a Blu-ray Disc on our 60-inch HDTV is still more enjoyable than watching video on a phone no matter what the resolution. This is mostly due to the size of the display, but also because of the distance we sit from it. And in addition to the small size there is the lower contrast, and the lack of surround sound. But that doesn't change the fact that once you spend some time using the iPhone 4, all of a sudden everything else does seem to lack detail and other screens we used to love, like the older iPhone and the Zune HD, look down right fuzzy -- can you tell which image above is the Zune HD and which is the iPhone 4? Sadly the iPhone isn't the perfect HD fanatic's companion though, because it still requires us to convert our 1080p content to 720p, and although the video looks great on the display, there's no way to get HD on to our bigger screen -- we're keeping an eye out for a HDMI to iPhone dock. One thing is for sure though, when it comes to detail and flat out resolution per inch, the iPhone is the new boss.
iPhone 4 vs. Galaxy S, part deux: HD video playback (video)
We just couldn't leave this face-off of superscreens alone, and went back for another bite at the cherry. Admittedly, we found out the Galaxy S had a browser-specific brightness setting that we hadn't maxed out before setting off our camera hounds, so we've gone and remedied earlier comparison shots with the gallery below, and just as a bonus, we've now also run a HD video clip on both phones. This was to see how the Hummingbird and A4 SOCs, considered close siblings, handled some taxing video work and also to again compare performance deep down on the pixel level. What we can tell you now is that both handsets chewed through the 1080p HD clip with ease and that both gave results we have no hesitation in describing as sublime. Click past the break for the up close and personal video comparison action. N.B. -- We ran a 1080p clip on both phones' respective YouTube apps over WiFi. Although we're certain from the quality of the video that it was at least 720p, we can't say for sure that it was the full 1080 enchilada.%Gallery-96333%
Paul Miller, Pixel Density Enthusiast
One of the finest moments of any Engadget Podcast to date -- Paul Miller, PDE. Big thanks to everyone at the TWiT network for handling the video on Engadget Podcast #200, and special thanks to Robert (@ranhalt) for sending in the screencap!
iPhone 4's retina display claim put under the math microscope
Samsung might have entertained us with some trash talk about the iPhone 4's IPS LCD yesterday, but this stuff is of a rather more somber variety. Raymond Soneira, president of monitor diagnostics firm DisplayMate, has said that Apple's retina display marketing is inaccurate, because he believes a display that truly makes pixels indistinguishable to the human eye would require a density in the vicinity of 477dpi. The iPhone 4 has 326dpi, and by now you might be surmising that Steve Jobs flat out lied when he said that the iPhone 4's pixels are too small for the human retina to discern from 12 inches away. But not so fast, says Phil Plait from Discover, whose résumé includes calibrating a camera on board the Hubble space telescope. He's done the math too and finds that the 477 number applies only to people with perfect vision. For the vast majority of us, Steve's claim stands up to scrutiny; even folks with 20/20 eyesight wouldn't be able to tell where one pixel ends and another begins. So it turns out Apple can do its math, even if its marketing isn't true for every single humanoid on the planet.
iPhone 4 pixel density examined (video)
Sure, you've seen our iPhone 4 hands-on... but have you seen it through a retina display? We put the new device next to our trusty old iPhone 3G to get a feel just how different the screens look with twice the pixel density and shot a little pseudo-macro video. There's a marked difference in the screens, even side-by-side with the EVO 4G, and we found that even from a distance we were able to read bodies of text we'd previously had to squint to discern on our classic iPhones. Hard to capture, it really is something you have to see first-hand... but until you get that chance, live vicariously through us after the break.%Gallery-94640%
LG Display busts out 84-inch 3DTV with 3,840 x 2,160 res, we want the 2D version
Yesterday we brought you Samsung's 19 inches of transparent AMOLED goodness, today LG counters with an 84-inch 3DTV boasting UHD resolution and a claim to being the world's biggest of its kind. To be honest, at that size you really can't get away with old reliable 1080p, so it's comforting to see LG's keeping pixel pitch in mind when designing its headline grabbers. In other news coming out of the SID 2010 show, LG is demonstrating a "liquid lens" TV that'll give you glasses-free 3D, though the details of how that works are a bit scarce, while the company's also pushing its IPS wares in a big way, with a 47-inch HDTV, a 32-inch pro monitor, and a 9.7-inch (sounds familiar) smartbook on show. Also at 9.7 inches, we have color e-paper that's slated for mass production before the end of the year, while that flexible e-paper from January is also making an appearance. A pretty comprehensive bunch of goodies from LG, we'd say. Update: We just noticed a small but freaky 3.98-inch UHD LCD with a world's best 394ppi density. Amazing.
