brightness

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  • 3M Uniformity Tape improves lighting quality on LED edge-lit LCDs, lowers production costs

    by 
    Joe Pollicino
    Joe Pollicino
    05.18.2011

    Ever seen a display like the one on the left? That's long been a pesky phenomenon -- known as "head-lighting" -- with many LED edge-lit LCD panels, and 3M's new Uniformity Tape wants to make sure it won't be around for much longer. Basically, the tape sticks onto an LCD's internal light guide, and its printed-on optical pattern disperses each LED's light path at wider angles. This allows for up to three times the distance between each LED, while still maintaining an even all-around brightness level across the panel. There are other benefits to this as well considering future LCD panels could use fewer LEDs -- cutting manufacturing costs, and raising eco-friendliness. Hopefully the tape actually ends up working as well as the photo illustrates, but for now, you can view the full press release by clicking past the break.

  • Samsung updates Galaxy S II, speeds up Swype and fixes auto-brightness issue

    by 
    Sean Hollister
    Sean Hollister
    05.15.2011

    Samsung's Galaxy S II superphone didn't have many issues to begin with, and we're hearing there's one fewer annoying quirk today -- Android Community reports that a new firmware update (available via Kies) addresses the overzealous auto-brightness setting that continually irked us during testing. The i9100XWKE2 revision also apparently increases the responsiveness of the Swype software keyboard -- which is always a plus -- so unless this update also fries handsets or something, it sounds like a desirable one. [Thanks, Fayez]

  • LG Optimus Black arrives at T-Mobile UK for free (gasp!)

    by 
    Zachary Lutz
    Zachary Lutz
    05.13.2011

    Sure, its 700 nit Nova Display is bright, but it doesn't quite approach Apple's excellence, and its 1GHz processor comes across a touch sluggish, but attach "Free" to LG's Optimus Black and instantly there's a whole lotta value crammed in these 9.2 millimeters. That's the story over at T-Mobile UK, anyway, which is giving the Android 2.2 handset away with any two-year plan over £25. Just think, once you convince a friend to also throw down nothing for this handset, you'll be exchanging laughs, tunes and memories over WiFi Direct -- once you find an app that supports it, anyway. As for mainland Europe, your Optimus Black will be arriving shortly, but don't get too huffy if your particular carrier isn't quite so philanthropic.

  • LG Optimus Black review

    by 
    Vlad Savov
    Vlad Savov
    05.11.2011

    If you asked us to design our ideal Android phone, it might well end up looking like LG's Optimus Black. The handset that was once known under the codename "B" features a clean, elegant and exceedingly thin exterior, which is garnished with a 4-inch IPS display capable of generating 700 nits of brightness. There's the usual litany of added features, too, like a 5 megapixel shooter with the ability to record 720p video, a special G-Key for motion controls, and Wi-Fi Direct for peer-to-peer file transfers. Of course, looks and headline features are just the tip of the iceberg that is user experience, so if you want to know about the mountainous whole, join us after the break for a deep dive with LG's latest Android phone. %Gallery-123183%

  • Samsung RF712 gaming laptop promises ultra-bright 3D, an end to dimness (video)

    by 
    Sharif Sakr
    Sharif Sakr
    04.27.2011

    Dell has already put 3D to good effect in its high-end Alienware models, but Samsung claims the screen on its new RF712 gaming laptop will have industry-leading brightness, helping it to overcome the dimming effect of wearing 3D glasses. The 17.3-inch screen will employ the same Super Bright Plus technology that stunned us in its Series 9 laptop, but this time at a higher Full HD resolution. The stated brightness is 400-nits -- as much as double what you might to expect to find in an average LCD and perhaps even enough for a LAN party outdoors in the sunshine (ok, maybe not). Other specs include a second generation quad-core Intel CPU, 2GB-worth of AMD HD6650M graphics, 750GB hard drive and USB 3.0. The RF712 will start selling in South Korea on May 2nd for ₩2.6million (about $2,400), but it could be a while before it hits international shores. Until then, we will be standing here wearing our active Bluetooth 3D glasses and looking out for a 400-nit speck on the horizon. You, on the other hand, can check out the RF712 on video after the break courtesy of Johnmichaels01.

  • Runco's new High-Bright projectors bring LightStyle to the living room for less

    by 
    Richard Lawler
    Richard Lawler
    01.21.2011

    If you were drooling over Runco's latest LightStyle projectors that aimed to bring the segment out of dedicated home theaters and into more well-lit rooms but couldn't quite find room in your budget for a $22k beamer, check out the new LS-HB series. Bringing 2,700 lumens of brightness and the company's usual suite of DLP tech, ISF calibration options and video processing, the LS-HB will be available in February for an unusually thrifty price of just $7,995. Adding the CineGlide option for perfect anamorphic reproduction without black bars ups the MSRP to $15,995, but really the question is, can you afford not to have it? Check out all the details in the press release after the break.

  • Barnes and Noble eReader app updated

    by 
    Mike Schramm
    Mike Schramm
    07.09.2010

    I've been watching the e-reader competition with great interest lately -- after the iPad entered the market with such a splash, Amazon and Barnes & Noble have been trying to position their own devices in a place where they'll at least be profitable. But at the same time, those apparent iPad competitors have also been updating their own App Store apps. Amazon updated the Kindle app a little while back, and now Barnes and Noble has updated its own iPad app, including support for multiple orientations and brightness control, along with a few other bugfixes and features. As I said before, I like the precedent here -- even if these companies don't match up with Apple on the hardware, this update does a lot to bring the B&N eReader in line with iBooks. Of course this gives us iPad users more options -- even if we don't own a Kindle or a Nook, we've still got the chance to use those services. I would like to see a little more progress made with compatibility -- it's annoying to buy a book on one platform and not be able to read it on any other. But I guess that's the trade-off for having options -- Amazon and B&N will only keep up their app development while the money is coming in from their respective bookstores.

  • Monitor too bright? Put on some Shades

    by 
    TJ Luoma
    TJ Luoma
    10.18.2009

    This one goes out to all the night owls. As much as I love my iMac, I was surprised to see how little control it gave me over the screen's brightness. I often work on my iMac late at night in an otherwise darkened room, and even at the lowest brightness setting, the iMac is really, really bright. All of the Mac laptops I've used have the ability to dim the screen down to completely dark, but the iMac does not. That's where Shades comes in. Shades is a free preference panel which gives you the ability to control the brightness of your Mac through the menu bar or a floating slider control, or even keyboard shortcuts/hot keys: for example, to increase brightness when Shades is running, I can simply use the option/alt key and the up arrow (or the down-arrow to dim). I can also enable or disable Shades entirely or open the menu bar controls, all via the keyboard. Shades will let you set a minimum brightness level so you don't accidentally make the screen so dim you can't see anything (although if you have enabled the Hot Keys feature you can use the keyboard to increase the brightness even if you can't see the screen). I recommend setting a minimum brightness that's still visible, especially if you have set your Mac to require a password on waking from sleep. Shades supports multiple monitors, giving you independent control over each one. While I think this is a good feature (each monitor can have its own setting) the keyboard commands only change the main monitor. You have to adjust the secondary monitor's brightness with a slider control, which is easily done through the menu bar. However, if you have two monitors and have both of their controls in the menu bar, there is no easy way to know which one is which. There is a workaround for this: go into the Shades preference panel and click the tab for one of the monitors and set the "Menu control" to "Shades Icon"; then go to the tab for the other monitor and set the "Menu control" to "Brightness Icon". Now you will have two distinct icons in the menu bar, making it easier to know which monitor's brightness you are adjusting. You could also use the "Menu control" for one monitor and the "Slider control" (which floats on-screen) for the other. The ability to sync the brightness levels of both monitors would be nice, but this is a very minor complaint. My external monitor has no brightness controls whatsoever (and I know other monitors which make you hunt through a series of on-screen menus) so without Shades I would have no way of controlling its brightness level. Most laptop users may not need Shades, but it does offer finer control than what the built-in controls offer. If you're an iMac user (or a Mac Pro user with a monitor with hard-to-access brightness controls) who works late at night, give Shades a look. When you're done, simply quit Shades and the monitor will return to its regular brightness level. Shades runs on either PPC or Intel Macs, and requires Mac OS X 10.5 Leopard or later.

  • Don't let retailer's lights distract you from buying the right HDTV

    by 
    Richard Lawler
    Richard Lawler
    08.10.2009

    In case you hadn't already learned your lesson and started checking behind the displays while HDTV shopping, the HD Guru points out another element of the in-store experience that throws off buyers (and likely contributes to the LCD vs. plasma choices we find so infuriating): lighting. In case you don't recall from your last trek to a big box superstore, the lighting is quite often stuck on blinding making it nearly impossible to discern any difference in picture quality between televisions, specifically in terms of contrast and black levels (the pictures above are of the same value priced display, at left, under normal home lighting, at right, how it looks under some store lighting setups.) Tested with an illuminance meter, all the stores (except Best Buy's Magnolia showrooms) averaged well above home ambient lighting levels, with Wal-Mart and Costco measuring the highest at 411.66 and 742.77 lux. Still, there's tips on how to get a good idea of a TV's black levels even under those circumstances, plus some choice words left over for the incredible (and useless) dynamic contrast ratio numbers every manufacturer trots out these days, so go ahead and get educated.

  • Dialing back display brightness is good for picture quality and your wallet

    by 
    Steven Kim
    Steven Kim
    03.17.2009

    We've said it before, and we'll say it again -- once a TV has been moved from the store shelf into your shopping cart, the ultra-bright "torch mode" has served its only good purpose. Sadly, however, a study presented at the Ergonomics Symposium on Flat Panel Displays turned up more than 80-percent of the LCDs in the mode favored by alpine skiing fans, and almost 80-percent had the ambient light sensors disabled. That's bad news for picture quality, but also bad for energy consumption -- the study found that four factors (viewing angle, viewer age, content luminance and ambient lighting) can be used to determine an ergonomically correct display luminance, and we'd go out on a limb to say that the "dynamic" mode disregards what's "correct." Savings by dialing back the display can save energy by a not-too-shabby 20-30-percent. Statisticians can throw stones at the sample of 83 homes, but based on how many times we've found supernova whites and neon greens while visiting homes, it sounds about right.

  • Epson adopts new color metric for projector performance

    by 
    Steven Kim
    Steven Kim
    02.11.2009

    Anyone who's even casually compared front projectors knows there's a lot more to performance than just the number of lumens spilling out the front lens. It turns out that seemingly simple metric is skewed as well, and Epson is going to adopt a Lumita-developed measurement called "Color Light Output" to get a better handle on things. Projector brightness is measured from a white field, which means that for models that use more than just RGB primaries for image formation -- like 4LCD projectors -- the white field can be quite a bit brighter than the sum of the red, green and blue fields and give a misleading representation of white brightness relative to color brightness. The new "color illuminance" figure is the sum of the red, green and blue brightness only and will appear alongside the traditional white brightness. This all sounds very similar to last year's Color Brightness measurement that Sony and Epson backed, and we're all for more meaningful and thorough specs, but the bottom line remains the same -- trust your own eyes.Read - Epson adopts Color Light OutputRead - Lumita whitepaper [PDF]

  • German labs set new mark for energy efficient white OLEDs

    by 
    Richard Lawler
    Richard Lawler
    11.26.2008

    BASF and OSRAM ticked the OLED progress meter up one recently, with news out of Germany about new diodes that are both efficient (60 lumens per watt) and reproduce color accurately enough to meet international Energy Star standards. The most power sipping organic light-emitting diodes ever created they aren't, but the ability to keep their color under varying levels of intensity leads to the next step, producing stable deep-blue colored emitters for increased efficiency (100 lumens per watt or more) so they can start illuminating surfaces near you. Isn't it lucky, we know some folks in South Korea BASF might want to have a chat with.[Via OLED-Info]

  • Ten reasons to upgrade to a Lite

    by 
    Alisha Karabinus
    Alisha Karabinus
    07.19.2007

    var digg_url = 'http://digg.com/gaming_news/Ten_reasons_you_should_upgrade_to_DS_Lite'; Are you still waffling over whether or not you should hug your big ol' original DS goodbye and pick up a DS Lite? We know some of you are still clinging to the old ways, but never fear -- we're here to help! This week, we're going to look at ten reasons to make the switch ... and ten reasons to stick with what you've got. Oh, we never said we'd make the decision easy.Of course, the minute we convince you, Nintendo's apt to completely redesign the hardware all over again! But don't worry -- you'll be armed with a list of reasons to wait on anything new ... at least, until we decide to start convincing you to upgrade again. It's the circle of Nintenfandom; you know you're used to it by now.

  • DNP unveils daylight-friendly Supernova Flex Screen

    by 
    Darren Murph
    Darren Murph
    11.29.2006

    While the Claro TV fights off the dimness so often associated with watching front-projection in broad daylight, and Planar's Xscreen claims to work without the gargantuous pricetag, now there's yet another firm in the mix of miracle-working screens. Germany's DNP has unveiled the Supernova Flex Screen, which claims to deliver "ten times" the contrast and "double" the brightness compared to standard screens when used in daylight. Available in both fixed and retractable versions, and in widescreen sizes up to 120-inches (100-inches for 4:3 versions), the Supernova is reportedly compatible with all LCD, DLP, and LCoS projectors. It also sports an "ultrafine" .0065-millimeter pitch along with a "high-contrast filter" that allows the projected image to be reflected by the screen while it absorbs incidental light from other sources. While we've no idea how much DNP plans to charge for this daylight-friendly device (nor if it actually works as claimed), we shouldn't have to wait around too much longer to find out.

  • DS versus PSP: the battle for the best LCD

    by 
    Andrew Yoon
    Andrew Yoon
    10.25.2006

    PC Magazine got a "display expert" from DisplayMate Technology to evaluate the screen performance of the DS Lite and the PSP. To a casual observer, both have stunning displays. But how do they fare when they're analyzed by the same methods used on high-end HDTVs? The report is incredibly thorough, so I'll just give you some key highlights: