pixeldensity

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  • Toshiba's pixel-packed 4K convertible arrives next week for $1,299

    by 
    Steve Dent
    Steve Dent
    10.13.2015

    Toshiba has revealed more details about its Satellite Radius 12 Windows 10 convertible, including the price and availability. It looks like a serious contender if you're considering a Lenovo Yoga Pro 3, Microsoft Surface Book or another high-end convertible or Ultrabook, given the claimed all-day battery life, brushed metal case, 0.6-inch thickness and 2.9-pound weight. As for the screen, squeezing 4K into a 12.5-inch screen gives you 352 pixels-per-inch, which is now quaint for a smartphone, but stellar on a laptop (a 1080p option is also available). The screen is also coated with Gorilla glass and Technicolor-certified for color accuracy.

  • Sharp's new display shows the pixel-density race is far from over

    by 
    Steve Dent
    Steve Dent
    11.13.2014

    If you have spectacularly good eyesight, the highest pixel-density you can see is about 500 pixels-per-inch (ppi). But that trifling little detail isn't stopping display manufacturers and marketers, no sir! Sharp just revealed an iPhone 5s-sized (4.1-inches) IGZO LCD screen with WQXGA (2,560 x 1,600) resolution. That works out to 736ppi -- a quantum leap above Samsung's Galaxy S5 LTE-A, the current smartphone champ at 576ppi. You'll see devices with the screen starting in 2016, but it may lose its density crown before then anyway. Samsung is rumored to have a 5.9-inch, 4K Super AMOLED display with 747ppi in the works. Better eat those carrots. Update: We've updated the post to note that it's the iPhone 5s that has a 4-inch-sized screen, not the iPhone 4s.

  • Android 4.3 source code reveals support for 4K resolution

    by 
    Myriam Joire
    Myriam Joire
    07.26.2013

    We've seen Android run on anything from low-resolution smartwatches to high-PPI phones and tablets, including the new 1920 x 1200-pixel Nexus 7 Google launched earlier this week. To make this possible, the mobile OS supports a number of pixel densities for app content -- from 120PPI (LDPI / Low DPI) to 480PPI (XXHDPI / Extra Extra High DPI). Close examination of the Android 4.3 (Jelly Bean) source code reveals the addition of a 640PPI (XXXHDPI / Extra Extra Extra High DPI) pixel density, which -- according to the comments in the code -- is intended for 4K televisions. Does this mean we'll begin to see Android devices with 640PPI Ultra HD displays? Perhaps, but considering 480PPI is overkill on handsets, this is most likely designed to make image assets and fonts, such as the Google TV UI, readable on 4K screens when viewed from a distance.

  • JDI debuts 2.3-inch display with a 1,280 x 800 resolution, 651ppi

    by 
    Donald Melanson
    Donald Melanson
    06.06.2012

    Well, it looks like LG's Retina-beating 5-inch display with a 1080p resolution isn't the only screen setting some new pixel density records at the SID conference this week. Japan Display Inc. has now also announced a new 1,280 x 800 display with an amazing pixel density of 651ppi. If you're able to do the math, though, you'll realize that means the display itself measures just 2.3 inches. While it's not clear exactly what sort of devices JDI has in mind for the screen, the company says it's able to produce photographic-level images and text that is perceptibly sharper than even today's highest-resolution displays -- hopefully we'll be able to judge that for ourselves sooner rather than later.

  • The Galaxy Nexus' Super AMOLED display is a minus, not a Plus

    by 
    Sharif Sakr
    Sharif Sakr
    10.21.2011

    For all the buzz around Samsung's latest hi-def smartphone, the absence of one little word has largely been glossed over. That word is "Plus" -- the wizened Galaxy S II has a "Super AMOLED Plus" display, for example, whereas the sparkly Galaxy Nexus is merely "Super AMOLED." Did the marketeers simply forget those extra hyperbolic keystrokes, or does the difference actually mean something?Well, regrettably, it does. Samsung uses "Plus" to refer to full RGB displays, in which each pixel possesses its own trio of red, green and blue sub-pixels. Meanwhile, a non-Plus display uses a cheaper PenTile system -- which forces pixels to share each other's sub-pixels. Aside from potential hygiene issues, this results in a lower overall sub-pixel density, reduced sharpness and worse color rendition. We saw the difference clearly enough when Engadget Spanish microscopically compared the original non-Plus Galaxy S against the GS II, and now the folks at FlatPanelsHD have undertaken a more up-to-date comparison at the source link. The upshot? They calculated that, despite its 4.65-inch screen size, the Galaxy Nexus has the same number of sub-pixels as the 3.5-inch iPhone 4/4S. Think of a word with no r, g or b in it, and you eventually arrive at "disappointed."Update: We just added AnandTech's analysis at the More Coverage link. They point out that if you like the pixel density on the GS II, you should be happy with that on the Galaxy Nexus -- although they don't address color rendition.[Thanks, Mauro]

  • Toshiba shows off 6-inch tablet display with 498ppi resolution

    by 
    Donald Melanson
    Donald Melanson
    10.20.2011

    Toshiba showed off a 4-inch display for cellphones with a 367ppi resolution earlier this year, and it's now back with an even higher pixel density for its new 6.1-inch display for tablets (or possibly phones, at the rate things are going). This one comes in at an impressive 498ppi, which translates to a resolution of 2,560 x 1,600 -- or more than enough for some "photo-realistic" images, according to Toshiba. As for the other key specs, it boasts a 1,000:1 contrast ratio, 16.7 million colors, and 61 percent coverage of the NTSC color gamut -- plus viewing angles of 176 degrees both horizontally and vertically. What's more, Toshiba is even suggesting that the display could also be used for glasses-free 3D, which would cut the resolution in half but still be higher than other comparable displays. Unfortunately, there's no word on when it might actually hit some tablets, 3D or otherwise. Head on past the break for an up-close look at those pixels.

  • Engadget Primed: all mobile displays are not created equal

    by 
    Zachary Lutz
    Zachary Lutz
    08.19.2011

    Primed goes in-depth on the technobabble you hear on Engadget every day -- we dig deep into each topic's history and how it benefits our lives. Looking to suggest a piece of technology for us to break down? Drop us a line at primed *at* engadget *dawt* com. The quality of a mobile phone's display is arguably the most important factor to consider when you establish a relationship with a handset. It's inescapable, really. Whether you're playing a rousing game of Robot Unicorn Attack or (regrettably) drunk-dialing an ex, it's the one interface element that you're consistently interacting with. It's your window to the world and your canvas for creation, and if it's lousy, it's going to negatively influence everything you see and do. Today, we're delving into the world of mobile displays, where we're aiming to entertain and edify, and hopefully save you from making regrettable decisions -- when it comes to purchasing new phones, anyway. In this edition of Primed, we'll be examining the different qualities and underlying technologies of several displays, starting with the ubiquitous TFT-LCD and moving through the nascent realm of glasses-free 3D and beyond. We'll also be addressing the importance of resolution and pixel density. Finally, we'll be scoping out a handful of upcoming technologies -- while some are thoroughly intriguing, others are just plain wacky. Go ahead... buy the ticket, take the ride, and join us after the break. It's Primed time.

  • Android Honeycomb has hidden Gingerbread interface, enabled by higher LCD density

    by 
    Richard Lai
    Richard Lai
    05.20.2011

    Google's already indicated that tablets and smartphones won't be sharing the same Android build until Ice Cream Sandwich in Q4, though interestingly enough, it turns out that the tablet-friendly Honeycomb actually has Gingerbread's interface quietly tucked underneath. According to modder Graffix0214, all you need for making the jump is one simple tweak in a system file: assuming you already have root access, use your preferred method -- Pocketables recommends the LCDDensity for Root app -- to change the LCD density value to 170 or higher to emulate a smaller, denser display. After a reboot, you should then see some Gingerbread love as demoed by Graffix0214's video after the break; and likewise, set the value to 160 or lower to roll back. It sure is nice to have an option, eh?

  • Sharp shows off the world's first Super Hi-Vision 85-inch LCD with 16x more detail than 1080p

    by 
    Richard Lawler
    Richard Lawler
    05.19.2011

    While Japan's NHK has been working on the successor to HDTV, Super Hi-Vision, for years, there haven't been any direct-view HDTVs capable of showing its full 7,680 x 4,320 pixel resolution until this prototype unveiled today by Sharp. Its 103 pixels per inch may be just a fraction of those found in some of the pocket displays we've seen at SID this week, but that's still far more than the 36ppi of a 60-inch 1080p HDTV. If estimates are correct, we'll still be waiting until around 2020 for that 33MP video and 22.2 channel sound to actually be broadcast, although there's a possibility of some demonstrations happening during the 2012 Olympics. Skip past the break for the available specs and a video demonstration, or just head over to the NHK's Science & Technology Research Laboratories in Tokyo between the 26th and 29th of this month.

  • LG's new ultra-high resolution AH-IPS displays, simply stunning at any size

    by 
    Michael Gorman
    Michael Gorman
    05.18.2011

    The Life's Good gang warned us with the written word about its super fantastic, ultra-high resolution Advanced High Performance In-Plane Switching (AH-IPS) displays. Of course, written resolution claims merely provide verisimilitude; viewing is the only way to discern their veracity. We saw the screens, ranging from a petite 3.5 inches to a prodigious 84-inch panel, at SID 2011 and were impressed enough to begin scheming ways to get a wall of these for Engadget HQ. Unfortunately, we don't know how many dollars LG wants for its plethora of panels or when they'll go on sale, but you can bet we'll keep you posted. If our impressions and that mouthful of a moniker haven't sold you on the awesomeness of AH-IPS, then take a gander at the gallery and let the pixel-packed pics persuade you. %Gallery-123864%

  • Android-powered LG P930 shows up in XML file with 1,280 x 720 display, we think it's a tablet

    by 
    Dana Wollman
    Dana Wollman
    05.18.2011

    Typically, when tidbits about unannounced products start to trickle out, we begin our inquiry with general truths -- say, "this is a smartphone" -- and then work our way up to the nitty gritty. In the case of LG's mysterious P930 device, though, our search for clues starts at the opposite end. According to an XML file on the company's website, it's cooking up an Android-powered device with 1,280 x 720 resolution and GPRS / EDGE / HSPDA / HSUPA connectivity. One question this string of code fails to answer: just what is this thing anyway? A smartphone? A tablet? Given the information available, we're inclined to say this will be a slab, joining the inaugural G-Slate. It's not that handsets with 1,280 x 720 resolution are out of the question, but we do notice that the file mentions 15 x 13 character size. When you compare that to devices such as the HTC Sensation 4G, which has a 25 x 21 char size, you'd imagine this mystery device has a lower pixel density than a phone with the same resolution. Until LG comes clean, of course, your guess is as good as ours. [Thanks, FT]

  • Samsung and Nouvoyance show off power-sipping, pixel packed Pentile display (video)

    by 
    Michael Gorman
    Michael Gorman
    05.18.2011

    Samsung is seriously stepping up its slate screen game with its 10.1-inch 300ppi panel that we told you about last week. We just got to see the display in person at SID 2011, and can confirm that the presence of Pentile pixels should no longer be a cause of concern. Nouvoyance, who designed the display, told us that the panel's RGBW pixel configuration makes your whites whiter and brights brighter (up to 600 nits worth), while consuming 40 percent less power than conventional LCDs. The company also told us the tech's been around for awhile, but that market forces conspired to keep it concealed -- though after seeing it in person, we can't fathom why it didn't make it into Sammy's stellar new slate. Pixel-density people shouldn't pout, however, as devices packing the display will drop by Q4 of this year or Q1 2012. Video explaining why you should join the RBGW revolution's after the break. %Gallery-123857%

  • E Ink and Epson to co-develop 9.7-inch high-res 300ppi electronic paper display

    by 
    Richard Lai
    Richard Lai
    05.17.2011

    It's pretty obvious that this year's SID Display Week is shaping up to be a stage for the 300ppi extravaganza -- Samsung and LG were first to announce their latest high pixel density LCDs, and then Toshiba chimed in with its 367ppi LCD for cellphones. Fortunately, fans of ePaper will also have something to look forward to here, as E Ink Holdings and Epson have just announced the co-development of a 300ppi ePaper display. To be exact, E Ink will be in charge of producing the sharp-looking 9.68-inch 2,400 x 1,650 display panel, whereas Epson will take care of the high-speed display controller platform to go with E Ink's part. No availability has been announced just yet, but stay tuned for our eyes-on impression at the show.

  • Toshiba enters pixel density fray with 367ppi LCDs for cellphones

    by 
    Terrence O'Brien
    Terrence O'Brien
    05.16.2011

    Toshiba just fired its own salvo in the pixel density wars at SID 2011. The company is showing off a range of LCDs for cellphones that top out at an almost imperceptibly fine 367ppi on its 4-inch HD (720 x 1280) model. Beyond just cramming more red, green, and blue dots in each inch, these panels also top the bar-setting Retina Display in the contrast department with an impressive 1,500:1 ratio. The company also brought a smaller 3.3-inch screen with a resolution of 480 x 864 to Display Week that hits a respectable 300ppi. They're not quite as impressive as these HAST LCDs, but who really needs to put 1080p in their pocket? (Want is a different story.) Of course, Engadget is on the scene and, if you're lucky, we'll let you live vicariously through us as we tour Toshiba's booth -- you know, as a reward for your loyal readership.

  • Samsung and LG to showcase high pixel density LCD panels for tablets at SID 2011

    by 
    Richard Lai
    Richard Lai
    05.13.2011

    It's a well-known fact that LG's already dominated the pixel density race in the smartphone market thanks to the Retina Display inside the iPhone 4, but we've yet to see similar technologies making their way to larger devices. That could change very soon, however, with Samsung and LG both announcing larger high-density panels to be showcased at SID 2011 next week. From Samsung we'll be seeing its 10.1-inch 300ppi prototype LCD panel, which rakes up an astonishing resolution of 2,560 x 1,600 under the battery-friendly PenTile RGBW matrix (not to be confused with AMOLED and Super AMOLED's RGBG arrangement). What's more, Samsung also teases "commercial availability" for this technology later this year. Things are a bit vague with LG -- no specific resolutions are mentioned in the pre-show announcement, but we're told that the company will introduce "a full line-up" of "ultra-high resolution" Advanced High Performance In-Plane Switching (AH-IPS) products, including 3.5-, 4.5-, 7-, 9.7, 55-, and 84-inch panels, with a "greater number of pixels than the PPI that can be recognized by the human eye at a typical distance" -- a proclamation typically reserved for the iPhone 4's 326ppi Retina Display. Of course, LG could be misleading here -- the 9.7-inch panel brought up in the press release could just be the exact same 1,024 x 768 IPS display on the iPad, but we'd be surprised if LG doesn't have a similarly-sized prototype to fire back at Samsung's 10.1-inch 300ppi panel. Well, keep an eye out for our SID 2011 coverage next week and we'll let you know what goodies we find.

  • Samsung sees a Retina Display in your tablet future, and perhaps glasses-free 3D

    by 
    Sean Hollister
    Sean Hollister
    03.23.2011

    Samsung gazed into its crystal ball today, and what did it see? The pixel density of tablet screens drastically increasing. Yes, while Apple may not have managed to cram a screen into the iPad 2 worthy of the Retina moniker, it sounds like Samsung Semiconductor may be working on just such a thing, as the company projects that it will have tablet displays with 300 to 400 pixel-per-inch resolutions by 2015. Presently, the Samsung Galaxy Tab has a seven-inch, 1024 x 600 panel, which translates to only about 170ppi, but Samsung suggests that tablets of the exact same size might stretch well beyond 1080p desktop resolutions as pixel density increases, and yet still manage a respectable 8 to 10 hours of battery life. Samsung also said that while it's still waiting to see if consumers adopt stereoscopic 3D, it might be interested in joining the throng, perhaps bringing a glasses-free tablet display to market in the years to come. Curious what else the future might hold, according to Samsung? Take a peek at our gallery below. %Gallery-119627%

  • Mac OS X Lion has TRIM support for SSDs, HiDPI resolutions for improved pixel density?

    by 
    Sean Hollister
    Sean Hollister
    02.26.2011

    As you'd expect, developers have wasted no time in tearing apart the Mac OS X Lion preview, and in so doing they've allegedly discovered some intriguing things -- namely, support for the SSD-wiping TRIM command, and a series of high-DPI display modes which would allow for icons and UI elements with twice the graphical detail -- which could mean a PC-sized Retina Display. The former doesn't sound like the most exciting upgrade, but it's truly a boon for Mac users with solid state storage, as TRIM can greatly improve write speeds in compatible drives. As far as the improved pixel density rumors are concerned, it's not clear whether Apple's actually looking at doubling display resolutions in new computers (9to5Mac imagines a 15-inch MacBook Pro with a 2880 x 1800 screen) or whether Apple's simply moving to maintain icons that are precisely the same physical size across all its displays -- which would make fantastic sense for a touchscreen UI, by the way.

  • Hitachi's 4.5-inch IPS display has 1280 x 720 res, 1,100:1 contrast, plans for mass production in October

    by 
    Vlad Savov
    Vlad Savov
    02.11.2011

    Yo, Apple, you know that Retina Display you're so proud of? Old news. Hitachi Displays has just announced a 4.5-inch IPS LCD panel that fits 1280 x 720 pixels within its frame, accounting for an eye-watering 329ppi density. That's higher than you can get on the iPhone 4, but the fun doesn't stop there. Hitachi's new goodness also promises an 1,100:1 contrast ratio and 500 nits of brightness coming from an LED backlight. This precious new slice of technology is predictably all geared to land in your future smartphone of choice and we're told mass production is set to begin in October of this year. That basically means CES 2012 is going to be filthy with handsets offering full 720p resolution -- we can't wait.

  • iriver Story HD e-reader preview (video)

    by 
    Vlad Savov
    Vlad Savov
    01.07.2011

    Our trailer was just visited by an iriver rep bearing his company's Kindle killer in waiting, the Story HD. This 6-inch e-reader touts a bodacious 1024 x 768 resolution, which contributes to an even better contrast ratio than on Amazon's E Ink slate, while software optimizations between now and release are expected to make the Story HD the fastest-refreshing device of its kind. The display itself is built by LG Display and is accompanied by a Freescale Cortex A8 CPU, 2GB of onboard storage, and an SDHC card-reading slot. Sun rays are, as expected, absolutely no problem and we have to admit that on first sight we thought the device had a sticker affixed to its front -- its that good at reproducing printed materials. Physically, it seems to have been constructed with the third-gen Kindle as its dimensional blueprint, albeit with quite a different control scheme. The hand-built proto unit we played with wasn't really ready to have its ergonomics judged properly, but iriver has plenty of time until the expected May launch to iron out any kinks. Content distribution partnerships have already been sewn up for the US, so now it's just a matter of patience until we get our e-reading on in gorgeous XGA resolution. Video hands-on after the break. %Gallery-113350% %Gallery-113351%

  • Ortustech unveils world's smallest Full HD display, puts Retina to shame

    by 
    Thomas Ricker
    Thomas Ricker
    10.25.2010

    Ever heard of Ortustech? Probably not. But you have heard of Casio, right? Ortustech is a joint venture between Casio Computer and Toppan Printing to develop small and medium sized displays. Today, the company is announcing a doozy with its 4.8-inch 1920 x 1080 pixel HAST (Hyper Amorphous Silicon TFT) LCD with 160-degree viewing angle, 16.8 million colors, and a pixel density of 458ppi. Amazing when you compare that to the lauded 326ppi of iPhone 4's Retina display. However, it still pales in comparison to that little 546ppi panel Casio announced back in 2008 which we still haven't seen put into a consumer product. Doesn't bode well for this one being made available anywhere other than the trade show circuit.