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Sony Shelves OLED Tech, Brings Crystal LED TV To Bear Against OLED Competition

Subject: General Tech, Displays | January 9, 2012 - 09:50 PM |
Tagged: CES, sony, led, crystal led, oled, tv

While I read a few weeks ago that Sony would not be showing off any OLED TVs at CES, I was a bit saddened. The company was the first to bring a real OLED television one step above vaporware, even if it was only 11" and prohibitively expensive it was advancing the technology. Well, CES is here and Sony did not bring any OLED television to demo, much less bring to market this year. Fortunately, LG and Samsung have the OLED TVs covered. The question of how Sony plans to compete with the OLED competition seems to be in improved LED TV technology.

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Speaking of LED TV technology, while Sony did not bring an OLED TV to CES, they did bring a new LED TV that they claim is much improved over current LED back-lit televisions. They are calling this technology "Crystal LED," and it is powering a 55" prototype television at this years CES. The 55" television uses very small RGB (red, green, and blue) LEDs to create the picture. This is an important distinction as current "LED TVs" are really just LCD televisions with LEDs as the back-light; where the LEDs shine light through the LCD pixels to create the picture. This Sony prototype is an actual LED TV, not just a branding misnomer as the LED lights are what creates the picture and not just a light source.

According to Engadget, Sony claims their true LED TV is greatly improved over LED-back-lit LCDs and offers 3.5 times the contrast, a 1.5 times wider color gamut, and is 10 times faster than LCDs. Although these are Sony's numbers and should be taken with a grain of salt (until independent reviewers can verify), they at least seem reasonable and plausible. The contrast improvement and true blacks should be readily possible thanks to the panel tech being self emitting. If done right, it should come close to the contrast offered by OLEDs which share the self-emitting property. The ability to be 10 times faster than LCDs may be the most questionable number, but still not an outrageous claim.

Stay tuned for more information as we get it! Do you think Sony's Crystal LED prototype has a chance against OLED?

PC Perspective's CES 2012 coverage is sponsored by MSI Computer.

Follow all of our coverage of the show at http://pcper.com/ces!

Source: Engadget

AOC Will Show Off USB Powered 22 Inch LED Monitor At CES

Subject: Displays | January 5, 2012 - 10:49 AM |
Tagged: monitor, led, display, CES, AOC, 1080p

CES, the Consumer Electronics Show, is not until next week, but the tsunami of information and products that is sure to ensue has already started to rise in the form of leaks and teaser announcements. First off today is an announcement by AOC on a product that they will be showing off at CES. According to Maximum PC, the monitor, dubbed the e2251Fwu, will be pretty impressive by USB monitor standards.

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Specifically, the monitor will be a 22 inch, LED back-lit monitor powered and connected to the PC for video via USB. It is HDCP compatible, sports a 1920x1080 resolution, 5ms response time, and 250 cd/m2 (candela per square metre) brightness, The monitor claims a 20,000,000:1 dynamic contrast ratio, though comparing contrast ratios isn't very reliable (but that's another story).  Unfortuantely, I wasn't able to dig up much more information from around the web.  It will be interesting to see just how much latency the USB connection will add and whether it will be close to the panel's 5ms response time.

Further, the monitor is slated to be available in February for just under 200 bucks. For those of you that have tried out USB connected displays, how well do they work as secondary monitors?

PC Perspective's CES 2012 coverage is sponsored by MSI Computer

Source: Maximum PC

Swap your displays CCFL with LEDs

Subject: Displays | May 31, 2011 - 12:09 PM |
Tagged: hack, mod, ccfl, led, repair

Over at Hack a Day is a video and project log of an industrious fellow whose digital picture frame backlight bit the biscuit.  Instead of buying a new one he removed the dead CCFL and replaced it with a six dollar LED strip instead of an expensive inverter or lamp for the CCFL.  The project is not easy, especially if you wish to attempt this on a full sized monitor but there are tips and tricks that should help you on your way in the full post.

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"[Fileark] had the backlight on his digital picture frame go out one day. These are generally Cold Cathode Fluorescent Lamps which require an inverter to source the voltage necessary for proper operation. When they stop working, the inverter is usually to blame. Since that circuit is made up of pretty small surface mount circuitry, he decided to replace the backlight with LEDs rather than repair the inverter."

Here are some more Display articles from around the web:

Displays

Source: Hack a Day