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All posts tagged "led"


Wednesday, December 21, 2011

Which Is Best: LED, Plasma, or LCD?

Posted by Brad Wasson in "Digital Home Talk" @ 08:30 PM

http://reviews.cnet.com/8301-33199_...-plasma-vs-lcd/

"Want to know the best part, and the dirty little secret of the TV world? If you're buying a name-brand TV, its picture quality is going to be really, really good. You are seriously picking from good, gooder, and goodly goodest here. Compared with flat panel TVs from just a few years ago, new HDTVs are thinner, brighter, bigger, better-performing, and cheaper than ever before. So have at it. Your new TV is going to be awesome for years to come."

Geoffrey Morrison over at CNet has an interesting article comparing the three predominant television technologies. If you have any experience at all following this industry, you will know how complicated it can be to stay on top of "what is what" and "what is best". One of the key points Morrison states makes a lot of sense to me: what is best depends on what is important to you. His article compares the technologies on a number of criteria: light output, black level, contrast ratio, viewing angle, and energy consumption. This is definitely not an in-depth, detailed comparison, but it does hit some high points and is a pretty good introduction to the issues and subject matter. The bottom line: each technology offers some benefits that may or may not be important to you. If you are trying to decide on a new TV, check out this article.

Tags: hardware, tv, lcd, led, plasma

Friday, August 12, 2011

The Mysteries of LED Lights Revealed

Posted by Jason Dunn in "Digital Home Articles & Resources" @ 08:06 AM

http://news.cnet.com/8301-11128_3-2...led-lightbulbs/

"If you've heard about residential LED lightbulbs, you probably know that they're energy-efficient, last a long time, and are pricier than other lightbulb technologies. I've been using LED lights in my home for several months now, and overall the transition has been good. As you consider your lighting options, here a few things that you might not know about LEDs."

I've never thought of lighting as being a "geeky" affair, but like all things based on modern technology, there's a bit of geekery to be had. For instance, did you know that the reason why bugs are attracted to traditional lightbulbs is because they emit UV light? Most - though not all - LED lights emit no UV light, thus not attracting bugs. And the lifespan of Compact Fluorescent bulbs can be reduced if you're turning them off after less than 15 minutes. News to me!


Tuesday, June 28, 2011

Which HDTV Screen Technology Is The Best

Posted by Richard Chao in "Digital Home News" @ 04:21 PM

http://www.pcmag.com/article2/0,281...,2387377,00.asp

"When you're shopping for an HDTV, there are plenty of factors to consider. Chief among them is the type of display. While boxy, bulky CRTs are long dead and mammoth rear-projection HDTVs are all but extinct, the HDTV market currently offers three distinct choices in display technologies: plasma, traditional CCFL-backlit LCD, and LED-backlit LCD."

Image courtesy of plasma.com

Looking to purchase a new HDTV in the near future? You may want to take a look at the article published by PC Mag comparing the three different prominent HDTV screen technologies, LCD, LED and Plasma. PC Mag walks you through the differences in the technologies, their image qualities, size differences and power consumption.

Getting to know the pros and cons of the various screen types before going to the store will save you a lot of time and allow you to immediately focus on a smaller number of TV sets instead of aimlessly walking around.


Friday, June 24, 2011

Nanosys Screen Technology: A Quantum Leap Forward in Colour Accuracy?

Posted by Jason Dunn in "Laptop Thoughts News" @ 09:00 PM

http://scobleizer.com/2011/06/23/is...-i-hope-so-wow/

"When Nanosys CEO Jason Hartlove pulled two iPads out of his bag and turned them on one looked like when I first saw my first Kodachrome slide while the other looked muddy and crappy in comparison (I pulled out my own iPad and saw my screen looked muddy and crappy in comparison too). The new one was clear, beautiful, stunning, with richer colors than I had ever seen on a screen before."

I highly value great display technology and based on what I'm reading about Nanosys, this could be a major leap forward. The challenge here is that since none of us are going to watch this video on a Nanosys display, we can't actually tell how much better it is. While I don't think "our lives will change forever" as the hyperbolic Robert Scoble puts it, it looks like Nanosys is positioned to make a big splash in the display industry. The Nanosys system allows for just over 60% of the colour gamut that the human eye can see. In comparison, a typical tablet is 20%, a typical HDTV is about 35%, and the NTSC broadcast standard is about 50%.

A lot of technology like this goes nowhere, but the Nanosys CEO says their technology will be in a tablet by the end of the year, and in TVs in 2012. Since this is a film, it should technically work in essentially anything with an LCD screen: phones, tablets, laptops, TVs, etc. I'm looking forward to this, especially since the CEO says their product is essentially cost-neutral so industry pick-up should be swift.


Saturday, July 11, 2009

New LED LCDs from Sharp

Posted by Chris Gohlke in "Digital Home Hardware & Accessories" @ 03:00 AM

http://news.cnet.com/8301-17938_105...l?tag=mncol;txt

"The LE700 series features a "full array of LEDs" behind the screen, but doesn't have local dimming, a technology that allows different areas of the screen to brighten and dim separately. Past TVs we've reviewed with local dimming exhibited superb black levels, but we haven't tested any LED-equipped sets without local dimming aside from Samsung's edge-lit models, which didn't perform as well as the local dimming displays. Also, while Sharp is touting the LE700's native 120Hz refresh rate, a number of its LED competitors are already pushing 240Hz sets. Other than its energy-saving capabilities, it's not entirely clear how this kind of LED backlight offers much of an improvement over standard LCDs, so we'll have to look into it when we get our hands on the LE700 series."

Although quite a bit more than non-LED Aquios sets, the starting prices for these are pretty competitive with other LED sets. But, without local dimming, I'm curious if these sets will have the bang to go with the buck.


Wednesday, October 15, 2008

Spotlight Turns to Notebooks Part 4: The 24" Cinema Display

Posted by Vincent Ferrari in "Digital Home Hardware & Accessories" @ 01:00 AM

http://www.apple.com/displays/

"The first display made precisely for a MacBook. Introducing the 24-inch LED Cinema Display. It doesn't just expand the screen of your new MacBook, MacBook Pro, or MacBook Air. With a built-in iSight camera, mic, and speakers, it expands your whole experience."

The final item Apple discussed at their big announcement event was a new LED-backlit Cinema Display. For the first time ever, Apple has designed a display specifically for their notebook line. The new 24" model has connectors for the Mini DisplayPort, Magsafe power adapter, and USB port (to connect the camera on the top bezel and the 3-port USB hub inside). While Apple has caught a lot of grief over recent years for not having a proper docking station for their laptops, this does seem like an interesting compromise. The new Cinema Display has a resolution of 1920 x 1200 and will be available in November for $899.


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