Saturday, May 29, 2010

LCD Backlighting For HDTV

LCD is winning the race to be the dominant display technology for HDTV. According to DisplaySearch, in 2007, the market for LCD (liquid crystal diode) TVs was estimated at $27.4 billion. LCD TV shipments rose a stronger than expected 52% year to year in the second quarter of 2008 to nearly 7.5 million units (79.8% of total HDTV sales).

The LCD screen on a LCD HDTV is a selective light filter. It does not in itself emit light, but selectively filters light passing through the display from the back. Most HDTVs include either a single sheet of luminescent plastic or sidelighting with fluorescent lamps to provide the backlight. Both techniques are difficult to control.

Many consumers focus on screen resolution when selecting a High Def (HDTV) system. Is this HDTV 720p, 1020i, or 1020p? However, when an expert group, the SMPTE (Society of Motion Pictures and Television Engineers), recently ranked the importance of screen resolution, it ranked fourth. The SMPTE ranked contrast ratio, color saturation, color temperature and grayscale ahead of screen resolution in importance. The Imaging Science Foundation reached a similar conclusion. Backlighting is the key component to improvement in contrast ratio and grayscale.

It is important that an LCD system allows for adjustment of the level of backlighting, and preferably, performs this function automatically. This will improve the contrast of the picture. Also, a reduced backlight level will also reduce power consumption and extend lamp life, as the power used and lamp lifetime is directly related to the backlight level. A lamp with a 50,000 hour lifetime at 6 milliamps may only have a 30,000 hour lifetime if the current is 7 milliamps, just 1 milliamp higher (Example: Sharp Electronics LCD Display).

Another important factor in the choice of backlighting is the consideration of "blur". Blur occurs when there is rapid motion in the programming, such as sports. When the picture changes quickly, the pixels can lag in response. Effective backlight engineering can reduce this significantly by strobing the backlighting, so that the individual pixels do not remain lit longer than needed. Examples of this technique include the Philips "Aptura" and the Samsung "LED Motion Plus".

Sidelighting

With sidelighting, the backlight is located in the back of the LCD panel, and to each side to create panel illumination. To make the light more uniform, a light diffuser is located between the lamps and the rear of the optical filter module. Most LCD systems that use sidelighting use cold cathode fluorescents (CCF) lamps. This technology provides a very bright white light. The lifetime of the lamps is usually between 10,000 to 20,000 hours (6-12 years at a rate of 5 hours of use per day).

The most important disadvantage is that the intensity of light cannot be varied locally, and sidelighting can look non-uniform. Some CCF lamps contain mercury. This is an ecological disadvantage.

The major drawbacks:


The intensity of light cannot be varied locally. This results in a lower contrast picture.
The light can be non-uniform.
Some CCF lamps contain mercury.

Conventional Backlighting

Most backlighting is performed with a single sheet of electroluminescent plastic. These panels can age (though improvements in this area have reduced this problem). Electroluminescent Panel backlighting uses colored phosphors to generate light. Displays using this technique can be thin and lightweight, and provide even light distribution.

The major drawbacks:


Limited life of 3,000 to 5,000 hours to half brightness (2-3 years at a rate of 5 hours of use per day).
The intensity of light cannot be varied locally.

LED Backlighting

LED backlighting uses a matrix of LEDs that can be controlled individually to offer very good control. In this configuration, a large number of LEDs are mounted uniformly behind the display. Brightness improvements in LEDs have made them more practical for backlighting. NEC pioneered this technique with their monitor, the 2180WG. Other companies, such as Samsung, have recently introduced versions of this technology. This should push prices down (the Samsung model cost less than 1/3 the price of a comparable NEC monitor).

This system offers local dimming technology and can achieve 1,000,000:1 dynamic contrast ratio. True actual black levels (the "Holy Grail" of LCD) are attainable by shutting off a pixel's light source. This can eliminate the grayish black picture typical of many LCD HDTVs. Groups of LEDs can be locally controlled to produce more light, increasing the brightness when necessary.

The problem with conventional white LEDs is that their spectrum is not ideal for photographic reproduction because they are basically blue LEDs with a yellow phosphor on top. Their color spectrum has two peaks, one at blue and another at yellow. White LEDs that are based on a group of red, green and blue LEDs are ideal for the RGB color filters of an LCD and can result in the most saturated colors. Sony's "Triluminos" LED backlight system is an example of this technique.
Sometimes, these HDTVs have a row of LEDs across the top and bottom of the display. This improves the brightness and color reproduction, and enables almost complete uniformity across the display.

LED backlights are much more efficient that alternative techniques. And since the LED backlight waste less energy, less heat is generated, that must be managed with air conditioning. LED backlights offer a long operating lifetime of more than 50,000 hours (more than 25 years of use at a rate of 5 hours a day).

LED backlit systems may not show well in a typical retail environment. Typically, the screens are somewhat reflective in order to achieve the high contrast ratio, and subsequently, a brightly lit showroom may not flatter this technology. In a more typical less-lit environment, this problem should not be as noticeable.

Engineering Concerns

The electrical engineering is simpler with LED backlights. Cold cathode fluorescent lamps (CCF) require high AC voltages (1,500 VAC) at startup, and operating voltages of 700 VAC or more. When the lamp is new it may take much less voltage to start, but with age the voltage requirements usually increase, complicating a designer's problem. An electroluminescent panel requires a voltage of about 100 VAC @ 400 Hertz.

A power inverter (to generate VAC) is needed for both CCF and electroluminescent panels to operate with a DC power supply. This is a significant expense, in cost, size, and weight of the system. The best inverter for this application permits the output voltage to automatically increase as the lamps age, extending the useful life of the lamps.

LCD systems with LED backlighting utilize low voltage DC, usually 12 or 24 VDC. This results in a smaller, simpler, and more reliable system. LED backlit systems must be well cooled or their performance can suffer. The LEDs generate less heat than CCF lamps, but the heat is very concentrated. Operating at high temperatures reduces the LED lifetime and shifts their light spectrum, while reducing output luminance.

OLED

A new technology that you will be hearing about in the future is Organic LED (OLED). This technology has a completely different backlight technology, it doesn't need one. Because of this, they draw much less power. And because there is no backlight, an OLED system has a larger viewing angle than an LED system. An OLED display is much thinner than an LCD display. The response time for OLED is faster than normal LCD screens. An average of 8 to 12 milliseconds in response time is normal for a LCD compared to 0.01 milliseconds in response time for an OLED.

Sony introduced an 11" HDTV at the Consumer Electronics Show in Vegas. The new 11" Sony TV is called the "XEL-1". It's very thin (1/10") and currently sells for $2500. Samsung demonstrated a 31" OLED HDTV with 1080P resolution at a tradeshow in Asia in November. LG, Toshiba, Matsushita (Panasonic), and others are investing hundreds of millions of dollars, developing this extremely promising technology. Toshiba has plans to sell a 30" OLED display in 2009. Samsung has announced they will sell large screen OLED HDTVs in 2010.

OLED displays have already been used for some time in digital cameras, cell phones and other devices with relatively small panels, because they are very energy efficient, which is very important in portable devices.

In theory, OLED displays can be more inexpensively manufactured than LCD or plasma displays, meaning that they should not be as expensive. Remember that the first large LCD and Plasma displays were much more expensive when they were first introduced.

Summary

LCD HDTVs and monitors with LED array backlighting are now the approach of choice because they exhibit better image quality while saving power. The ability to locally control light output is key to achieving high contrast ratios.

About the Author: Brian Bradshaw is a Certified Technical Specialist (InfoComm CTS). Areas of expertise include Video, Audio, Computation, [http://bradshaw-vacuum-technology.com]HDTV, Satellite Systems, and Communications. He has a communications technology business in Plano, Texas (Dallas). More information can be found at his [http://bradshaw-vacuum-technology.com]Website

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Friday, May 28, 2010

Your Dream Home Theater Starts With These 3 Basic Components

You could buy a TV and a home theater in a box, but what fun is that? Besides you are looking to buy the best home theater equipment for your money. The best way to do this is to get your components separately.


Purchasing a home mean making a lot of decisions in the process, many among aren't even sure of exactly which components are included in a home theater or which ones are needed in order to create an artful and impressive home theater. For this reason, many people simply do not bother going through the process of looking at their options and simply purchase an all-in-one solution. For the bold I offer the following advice.

The first thing to understand is that there are varying degrees when it comes to home theaters. The following components are the makings of a very basic home theater that will provide excellent picture and sound. They are not however an all-encompassing list of every possible piece or part that could make up a home theater system. For now we'll go over the necessary basics. The Television. For a dream home theater I would only buy a plasma tv, LCD TV or projector. There are some newer technologies, but the improvements are almost imperceptible and the cost is much, much higher.

As I stated, there are essentially three choices in today's television market: Plasma, LCD and projector. There are variations within each of these and the prices fall anywhere from relatively inexpensive to costly. This is the component that most home theater owners spend the most time contemplating. Considering the current pricing, if you ever plan to buy a blu-ray player, buy a 1080p high definition set. The picture is amazing and the costs on both TVs and blu-ray players have come down. Choose a 120hz set over a 60hz set, it reduces or eliminates motion blur - especially on LCD sets. The receiver. This is the brains and the brawn of your system. Find one that supports the latest technologies.

The receiver is the box you plug them all into-it receives all of this inputs and correlates it so to speak. This is the ultimate traffic director when it comes to your home theater and I suggest you spend a good portion of your home theater budget making sure that this is a good quality part. Again if you plan to use blu-ray, find a receiver that supports HDMI 1.3, and DTS-MA HD and TrueHD sound formats. The best brands in my opinion are Outlaw, Denon, Onkyo and Marantz (If you have a good-sized budget). I own an Onkyo, to me it is the best value, but check them out yourself.

Speakers are the heart of your dream home theater. Nothing makes a movie come alive and puts you right smack in the action like a audiophile quality sound system. Speaker technology is has come a long way.

Sound that would have cost tens of thousands cost only a fraction of that today. One of the best things to me about my dream home theater is that sound is way better than what I experience in theaters while having the ability to put my feet up while wearing my pajamas (which simply can't be done in a theater).

My advice hear is to make sure your center , front and surround speakers are all from the same manufacturer and share the same design and driver size, this is called timbre matching and creates a smooth open sound. Recommended brands here would be, Paradigm, B&W, Polk, Meridian and the ones I own and love Definitive Technologies (that's right I did not mention Bose). But we all have different tastes, go listen to a few for yourself. Finally, you have your DVD player or recorder. If high definition is important to you, get a blu-ray.

Sony's PS3 is actually a very good, and well priced blu-ray player - and you get a great game system to boot! These items are a great start for your dream home theater and you can build, expand, and upgrade over time for an even better system. Enjoy!

I'm Roger Sandoval, a Home Theater enthusiast, who finally built his own dream home theater, but I'm always upgrading and checking out new equipment. I love to share my advice to how to buy home theater equipment and where and how to build your own [http://dreamhometheater.net]dream home theater. I invite you read my LCD and [http://dreamhometheater.net]Best Plasma TV reviews as well as reviews and all home theater equipment.

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Thursday, May 27, 2010

Samsung Vs LG - A Head to Head Battle

Things are definitely changing fast. You can see improvements and introduction of newer models from the top LCD TV manufacturers. Take for example, Samsung and LG. But as we all know, not all LCD televisions work the same. Improvements are different, and technologies applied are distinct. Let's take a look at how these two brands differ.

Samsung LCD HDTV

Samsung as the world leader in the LCD TV market has always provided the consumers with something to look forward to. The Samsung LN52A650 was a great addition to their lineup of best LCD TV models because of its 1080p, 120 Hz, HDTV feature. The brand still improved televisions from their Series 6 and included a 100,000:1 dynamic contrast ratio, LDNA, and Yahoo Widgets. It delivers the same exceptional performance as those of previous models only that deeper blacks are delivered and more exciting features were added.

For the following year, Samsung finally introduced their Series 7 lineup. The Samsung LN52B750 is a 52 inhc LCD TV with an impressive 240Hz refresh rate. The response time was changed from 4ms to 2ms making it reload faster. The contrast ratio was increased to 150,000:1.

Owners of this model expressed extreme satisfaction not just because of its outstanding performance but also because of its affordable price of $2000. Perhaps the features of Samsung LN52B750 are the perfect ingredients that compose a best selling LCD HDTV.

LG LCD HDTV

On the other hand, LG will not of course compete without providing an equally outstanding LCD television. One of the reasons behind LG's success in the previous year is the LG 47LG60 which is a 47 inch screen. Because of its top of the line feature, solid performance, and unique design, they were able to compete with larger brands.

For the current year, LG came up with a competitive collection of LCD televisions. There is the LH30 series of LCD HDTVs that come with extremely appealing looks and specifications. Color adjustments, picture wizards that are very user-friendly, 24p film processing, 120 Hz dejudder processing, and other features make up the series' LCD TV models.

What sets them apart from other premium LCD TV models is their complete user controls. Additionally, prices are on the mass-market level making LG LCD HDTVs offer cheap but quality LCD televisions. A 42 inch LG screen would only cost $900 while a 47 inch screen like the LG 47LH30 of the premium line would sell at $1200 only.

This is just one of the eight series from LG. The LG LH50 allows consumers to stream Netflick movies directly on the TV. Internet connectivity is the greatest addition for this series. The LG LH55 series, on the other hand, renders a 240Hz refresh rate which eliminates motion blur.

Both brands produce good LCD televisions, right? But these facts clearly indicate how other LCD TV brands compete with the leading LCD TV manufacturer, which is Samsung. If you'd like to know which one you should choose, maybe you could ask yourself this - which one appeals to you more: is it the challenger or the one being challenged?

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Tuesday, May 25, 2010

3D TV in Your Home?

The three dimensional image (3D) makes a comeback in the cinema... and soon it will be available in your home.

At the last Consumer Electronics Show in January 2009 in Las Vegas, the electronics giants have submitted their prototype 3D TVs. Some models require the wearing of glasses, some do not, but on the whole, the main models that will hit the market in later this year will require 3D TV glasses.

This year, the DVD Forum has already adopted a standard proposed by Sensio, a Montreal company; to integrate 3D into DVDs. Panasonic is also trying to do the same for Blu-ray. Already, some broadcasters have started testing the transmission of 3D content and some have successfully broadcasted popular events such as sports games made available on 3D TVs in public places.

Is 3D TV a pleasant experience?

With special glasses, many have now had the opportunity to see 3D images on a home TVs.

Result: the action that is seen on the screen looks as though it is taking place at a closer proximity in terms of viewer distance and is an exciting experience. Some of the pictures of the sporting events that have been broadcasted have shown spectacular results.

In the past, the synchronization of two series of images - one for each eye - recorded on two rolls of film were some times a bit rugged, which sometimes caused some unease among moviegoers. By contrast, however, today's digital 3D TV eliminates this effects and results on some of the TVs are stunning. The user experience of the new 3D TV is much more comfortable. Although, there is still a hint of some eye discomfort, but it is drastically reduced, as observed by James Tam, psychophysicist and researcher at the Centre for Communications Research in Ottawa. He said it will take at least 10 years before the technology is widespread in homes. For industry, the main challenge will be to agree on a standard distribution.

Already on the market

However, there are few televisions in the stores capable of displaying 3D images, including models released by Samsung.

To fully enjoy the experience, some users have connected a computer on their television with a Nvidia GeForce 3D Vision video card. You can use this system for playing video games in 3D.

This is just the beginning of a new era in TV technology and there is still a lot of innovation waiting to be unleashed for even better enhanced TV experience for the future. But one thing is fr sure, 3D TV is now establishing a firm footing in the market for long term use.

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What to Look For in an In-Dash GPS Navigation System

There are many separate electronic devices that you can get for your car. There is car audio, video, GPS, radar detectors, hands free phones, HD satellite radio, rear camera for reversing, and probably some other features that I have missed. What I have been researching for though is an in-dash GPS navigation / entertainment system.

The Brands and the Prices

First of, the major players in the in-dash GPS navigation systems are from Kenwood, Garmin, Pioneer, JVC, Panasonic, and Clarion. Depending on the features, the price range can be from a low of just under $300 all the way up to over $1500. So, for choice you will have no problem - the real problem is finding the best complete system that does all that you want it to do at the right price.

GPS and Navigation

This was my first priority; a good GPS and navigation system. The better ones use the Garmin navigation board that has built in maps of the continental US, Hawaii, Alaska and Canada. Look for an easy to use graphic user interface with touch screen, text to speech voice guidance (with a pleasant male or female voice,) selectable 2D or 3D map display.

Some also feature things like millions of points of interest so that you know which places are worth stopping to visit; one system I saw had 8 million points of interest. Another great feature is the traffic ready navigation; you can get traffic and weather ready units that warn you of pending bad weather or traffic jams and then give you alternative directions.

Bluetooth Hands Free Phone

This is a great feature as more and more states are passing laws that makes it illegal to use a cell phone while driving. You just have to have a compatible Bluetooth phone and you can then use the in-dash touch screen to mark the number or search for one. You will also be able to stream music from any Bluetooth device that holds your music collection.

Radio

The most basic of features in the in-dash GPA navigation systems is the AM/FM radio. But that is just the beginning; you can connect to a Sirius Satellite Radio receiver or XM radio and listen with digital quality sound to over 130 channels of music, news, sports, talk shows, and traffic information throughout the U.S. and Canada.

Audio and Video

For the complete entertainment system you need a good variety of audio and video input options. The best units let you play your favorite music and videos in many digital audio and video formats and be able to play CD, MP3, MP4, CD-R/RW, DVD, DVD+R/RW, DVD-R/RW, VCD, HDCD, SD card readers, and CD-DA discs.

You should also be able to plug in USB devices, MP3 players, iPods, and video game systems. For battery powered devices like the iPod or MP3 player, you will also be charging the device while you are enjoying the music. Other options should allow you to plug in more speakers, woofers, amplifiers as well as extra screens for the back of the headrests.

Summary

The last feature that many in-dash systems have is the ability to plug-in a rear view colour camera - handy for drivers that are hopeless at reversing or for bigger SUV's and trucks. So which in-dash GPS navigation / entertainment system am I going to buy? I'm afraid I am as confused as I was when I first started researching. I will just have to pick the features that I really want and read the reviews to see which system is best.

Michael Tait has been writing articles on the Internet for several years now. He writes about his many interests, like electronic gadgets, so you can check out his new website at [http://www.portable-ebookreaders.com/]Portable eBook Readers which lists the choices and features of many ebook readers like the [http://www.portable-ebookreaders.com/rca-ebook-reader/]RCA eBook Reader which has been revised thanks to the servers operated by eBook Technologies and their partners.

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Sunday, May 23, 2010

Toshiba 32 HDTV LCD Monitor Review

Toshiba has quickly become an industry leader in HDTV monitors and televisions, and while they make a wide range of CRT, Plasma and LCD monitors that can be used in the home, one of the most popular models is a Toshiba 32 HDTV LCD monitor.

The Toshiba REGZA 32HL66 32" LCD HDTV is a popular and respected model. It is currently retailing for just under $1,000 on most web sites. This set comes with speakers mounted on the bottom of the set and three separate tuners for maximum usage. It's a light set at only 46 pounds. That is one major advantage of plasma and LCD over CRT is that they almost always weigh much, much less. It also comes with an 8 millisecond response time that makes the quality of the picture close to perfect. If you've been putting off getting an LCD HDTV, this is the one to buy.

If you're looking for the same quality TV, but with a built-in DVD player, you're in luck. The Toshiba REGZA 32HLV66 32" LCD HDTV with DVD Player is available, as well. It is the same great TV profiled above, but it also comes with a high-end built in DVD player.

If you're looking for a bigger picture, but you still want to stick with the reliability of LCD, you can choose the Toshiba 47LZ196 47" Cinema Series Pro® high-definition 1080p LCD TV. This monitor is one of the largest LCD screens you can buy. At 47", it is sure to meet the size requirements of any hardcore TV junkie. The retail price for this one is a bit pricy, at $3,900 but it is worth it for HDTV fans who expect the best. For a TV of this size and quality, the shipping weight is only 109 pounds, or a fraction of what the same TV would weigh if it was not a flatscreen model.

Toshiba is an industry leader in HDTV and has been since the beginning. If you're looking for the best TV's money can buy, Toshiba is a trusted brand.

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Saturday, May 22, 2010

Choosing a Philips HDTV

Philips is one of the leading brands of healthcare and lighting products, as well as home entertainment products such as televisions. Recently, Philips has jumped on the bandwagon by releasing its own line of stylish and innovative HDTVs, so if you're looking to get one for your living room, you might want to consider getting a Philips HDTV.

Philips Cinema 21:9

The Philips Cinema 21:9 series is one of the latest and most talked-about Philips HDTV series, particularly since it offers the first cinema-proportioned HDTVs. This means you can watch movies at home in their original format, which facilitates a cinematic and more superb viewing experience. This HDTV series also offers breakthrough internet connectivity, with built-in wireless and ethernet connection and a DLNA certified network link.

Philips Aurea

One of the best features offered by many Philips HD televisions is called Ambilight, a patented technology which projects the glow of light from the back of the screen outwards to seemingly extend the screen and allow viewers to be more absorbed in their viewing experience. The Philips Aurea series is one of those which carries this feature, and even enhances it further with its stylish single sheet design and sensorial halo created by the LEDs strategically positioned around the screen.

Philips Essence

LCD televisions are light and slim, which makes it easy for them to be mounted on the wall like a painting. This is particularly true for the Philips Essence HDTV, which is so slim that it hugs the wall when mounted. It even comes with a smart levelling bracket so you won't have a hard time hanging it, and a separate connectivity hub which contains all the necessary inputs and outputs for a clutter-free appearance.

Philips 9000 Series

The Philips 9000 series has an LED Lux display, which results in a dynamic contrast ratio of 2,000,000:1, creating black levels that are amazingly deep for an LCD television. It also has the Perfect Pixel Engine, which creates highly sharp and detailed images with vivid colors, that are further enhanced by a 17-bit colour booster. It is equipped with Perfect Natural Motion, as well, which prevents judder for smooth pictures.

Philips 7600 Series

HD televisions are not just known for their amazing picture quality but also their superior audio quality, and the Philips 7600 series certainly delivers. Aside from delivering clear and razor-sharp images, this Philips HDTV series comes with a pair of invisible virtual surround sound speakers which are equipped with woox technology for enhanced bass sound. It also has a graphic equalizer with five bands to choose from.

Philips 6000 Series

This Philips HDTV series is perfect for watching movies with fast sequences or action-packed sports shows since it has a 120Hz panel and a 2 millisecond refresh rate - one of the fastest in the market, which is particularly fast for an LCD television. This means you won't have to worry about getting blurry images when the action picks up. Rather, you'll be able to enjoy moving images that are as sharp, clear and well-detailed as if they were static.

Philips 5000 Series

One of the reasons that people prefer LCD HDTVs to Plasma ones is because they save energy and this is especially true for the Philips 6000 series. Indeed, this Philips HDTV series is packed with power-saving features, such as features to dim the backlight depending on the program material and the lighting in the room. There is also a feature to reduce the maximum brightness to save even more power, exceeding Energy Star standards. It also offers great sound with four built-in speakers and excellent connectivity options with four HDMI inputs and a USB connection.

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Thursday, May 20, 2010

Home Entertainment Systems - Should You Consider Getting a 3D Home Entertainment System?

3D is a the hottest technology in movies right now! It seems almost every Hollywood movie is being made in 3D these days. So, it's only natural that you would want to enjoy those movies in 3D in your own home! Have you spent a few moments considering if it's really worth it though? I'm sure 3D will become a natural part of most home entertainment systems in the future, but at this stage it is still a technology that is in its early stages.

What does that mean?

The technology will improve a lot in the next couple of years.
3D is far more expensive than traditional home entertainment system technology.

It's critically important that you consider both of these factors before you go out and get yourself a 3D home entertainment system! If you are the kind of person who needs to have the latest and greatest technology at all times, then sure go for it. However, if you don't want to break your budget to get a great home theater it might be worth waiting for a couple of years before you get your 3D system.

The fact is that you will be able to save thousands of dollars by choosing traditional technology. That doesn't mean you will have to settle for an inferior home theater. It just means that you allow the 3D technology to mature before investing in it. That's not a bad thing! In fact, when you eventually invest in 3D technology you will get a far better system at a lower cost!

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Get a Blu-ray Player to Improve Your Life

What do you watch your movies on? Have you made the upgrade yet? Some people don't even know that there is an upgrade available. These people aren't living in the Stone Age, they just don't know yet. Not too long ago, when you went to the electronics store, you saw all of the DVD players lined up in a nice neat row. Off to one side they still had a few VCR's sitting there, but they were scooted off to one side.

On the other side were these machines that looked like DVD players, but they were a whole lot more expensive. What are they? Most people saw the price tag, didn't recognize what they were and moved along. They were Blu-ray players and nobody knew what they were for. Yes, they were made for watching movies, but why were they so expensive.

We just got used to DVD players; do we really need a new format? Yes. Yes we do. Have you seen what movies look like on these things? Not on a regular TV, but on an HDTV and connected with the right cables. It is like watching a movie for the first time. It is like going to the theater and seeing Star Wars for the first time again. It is life changing. Well, maybe not life changing, but at least format changing. It really is a big difference.

Can you remember when you saw a new DVD compared to the VHS? It was great when VHS was introduced, you could watch movies at anytime at home. It was a huge deal, but the technology has progressed. If you still have VHS then you are in the Stone Age and you have to move forward. Don't bother with DVD, you won't miss anything, go directly to the Blu-ray player.

Now don't upgrade to a Blu-ray player unless you already have an HDTV or are planning on getting one. You won't be able to tell the difference until you have a high definition television. But once you do, you will be able to see the difference and you will love it. There is no reason to upgrade every movie you own, just the ones you love.

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Tuesday, May 18, 2010

Who Needs a Home Generator?

Who needs a home generator? Well, maybe you. This past winter was harsh in some parts of the country, in other areas it was milder. For instance, where I live we had a relatively mild winter, which was a relief because the previous two winters were more severe than usual. With harsh winters come power outages, and with loss of power, most homes today come to a stand still. None of the appliances work, which is especially bad for food kept in freezers and refrigerators, the heat shuts off, and so does the water. This is bad enough in any home, but is worse if somebody in the home has health problems, and for the elderly or babies.

The reason power can be lost during a harsh winter includes heavy snow loads, high winds, freezing ice, and accidents that knock out power lines. But you don't have to live somewhere with a lot of snow to experience high wind storms and power outages. Tropical storms always wreak havoc on someone's power. So even if you live in a warmer climate, a home generator may still be a real good option. Especially if there is a risk of losing power during the height of a hot and humid summer when you rely upon your air conditioner.

Of course, there are other options besides a home generator. If it is a cold winter storm, you can always put your foods outside to keep cold. If you have a wood burning stove, then you don't have to worry about heat and you can melt snow for water. If you live out in the country and are on a well, then at least you have running water. But those are a lot of ifs, wouldn't it be better to plan ahead and have a home generator?

rel=nofollow [http://www.backupgenerators.com]Home generator come in many different sizes and power out puts. Though you can, you do not have to spend thousands of dollars. The size and power that you need is dependent upon what you want to power. You do not have to run your entire household during a power outage, you just need the necessities, like heat (or AC) and keeping your food cold, or perhaps some important medical equipment. For under a thousand dollars, you can get a portable home generator to accomplish these basic tasks.

If money is not an issue, you can purchase a more expensive and permanent home generator that will run your entire household. You can also go somewhere in between, something that runs more than the necessities, but not everything. Regardless of what you want, first you have to determine how much energy is needed to run the appliances you want to run, this will dictate the size of the home generator that you need. Next, you have to decide what type of fuel source you want to use. Possibilities include gas, diesel, propane, and natural gas. You will always want to keep some of this fuel on hand, and remember that the smaller the generator, the more often it will need to be refilled. If your home is already hooked up to natural gas or propane, your decision is made already made for you.

Power is something that is easy to take for granted, we use it every day with little thought until we are caught without it for a few days. If you live in an area where power outages occur occasionally, don't get caught unprepared. Decide now what type of home generator will work best for you, and start shopping around.

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Sunday, May 16, 2010

Getting Smart About Choosing the Best Home Theater System

Today's World situation demands the latest advanced techniques to attract buyers to your products, people are taking much more interest in these most up-to-date technologies and whenever they go to marketplace to purchase any household product, the very first thing they look ahead to is the technology which usually is applicable on such a product. The very same thing is applicable with the home theater system whenever the customer is looking forward to buy the best home theater system. Why the best? Because every one wants their product to work for a long time to the best of their satisfaction.

The downside is that we all make mistakes when choosing big tickets items. Especially those that we have an emotional investment in actually making a selection.. When selecting the best home theater system, a person should be aware of each aspect of technology. A dumb but preventable mistake that many people make when choosing a system is being unaware of the latest technological features that are in the marketplace. You can unwittingly pay top dollar for old technology very easily.

To prevent from overpaying and to get schooled on the latest information in the home theater community you will need help. All right, there are Seven Recommendations to Obtain the best home theater system. To start with, the purchaser must understand their requirements. Secondly, you will need to consider the dimensions and form of the area for the home theater, third you will need to evaluate the size and type of screen, fourthly, you will need to think about the potential upgrades and their benefit, fifthly, and most likely the most important, the sound system, sixthly, the model and make of the equipment (is it this year's model or last year's?) and lastly, the price that you can afford to pay. Each of these suggestions alone is a topic of considerable discussion and surely with more analysis before a buy is made. However, if one will invest the time and effort then you will be well on your way to making a superior investment. Just bear in mind that it is an investment because you should not have to make another purchase in this sector for a considerably long time.

The downturn in the economy was responsible for many people losing their jobs,. But, despite that turn of events, they did not lose their desire for the finer things in life. Big ticket items like a home theater continue to have strong demand. A recently available customer survey showed that high end video and audio equipment remain on the wish list of many people. Manufacturers understand this and continue to pump out models with more features and better functionality. The models change each and every year with the prices keeping very much the same. If the appropriate preparing is attained then the purchasing experience will most likely be a enjoyable one. It may even be fruitful to get a home theater publication to keep up with the changes in the marketplace.

If you are really serious about buying a home theater system without wasting too much money get smart on what is occurring. Go to the hangouts for HT aficionados. Find out what the latest topics are and let it guide you to your purchase. Getting the best home theater system is very doable with the proper guidelines.

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Tuesday, May 11, 2010

DSLR picture quality that won’t weigh you down. Sony’s compact, easy to use NEX-5 and NEX-3 with interchangeable lenses and HD video

11 May 2010

• New α digital cameras with DSLR picture quality and responsive shooting
• World’s smallest and lightest1 interchangeable lens digital camera (NEX-5)
• 14.2 effective megapixels Exmor™ APS HD CMOS sensor
• 1080i HD movie recording (NEX-5) with stereo sound, fast and silent autofocus
• Intuitive new interface with Help Guide and Shooting Tips
• E-mount lens system compatible with α DSLR lenses (with optional Mount Adaptor)
• Sweep Panorama with 3D capability2

Now photographers can enjoy the superlative picture quality and shooting responses prized by DSLR users in two beautifully compact new cameras that are brilliantly easy to use. Recommend Cameras: Sony NEX-5 | Sony NEX-3

Joining the α family, the NEX-5 and NEX-3 team DSLR-quality imaging with the convenience of interchangeable lenses in a sleek new design that slips easily into a jacket pocket or bag. In contrast with conventional DSLR models, the ‘mirrorless’ construction shrinks the thickness of both cameras to just 24.2mm (NEX-5 excluding grip and mount) and 25.4mm (NEX-3, excluding grip and mount) at their slimmest point. As a luxurious extra refinement, the NEX-5 features a tough yet light-weight magnesium body, making it the world’s smallest and lightest interchangeable lens digital camera.1

At the heart of both cameras is a newly-developed Exmor™ APS HD CMOS sensor with a resolution of 14.2 effective megapixels. Far larger than the sensor inside conventional compact cameras, its key to the extremely low image noise and creative defocus effects that are familiar to DSLR users.

Still and video image quality is further refined by the powerful BIONZ processor that ensures speedy DSLR-style shooting reflexes with quick, precise autofocus and minimal shutter lag. Both cameras can also capture fast-moving action with a high-speed burst of full-resolution images at up to 7fps (AF/AE fixed from first frame).

An elegant, uncluttered user interface – featuring a new ‘never get lost’ menu – makes the powerful creative possibilities of the NEX-5 and NEX-3 accessible to enthusiasts and step-up users alike. Shooting parameters are easily accessed via an intuitive control wheel and two soft keys. Turning the control dial, for example, allows depth of focus changes to be previewed ‘live’ on the LCD3, giving effortless control over beautiful, pro-style portraits. Further help for novice users is provided by on-screen shooting tips and a friendly help guide.

Images and camera settings are displayed on the big, bright 7.5cm (3”), Xtra Fine LCD with TruBlack technology that tilts up or down for comfortable viewing in any shooting position. The screen features an auto-brightness function for excellent visibility, even when you’re outdoors. TruBlack screen technology enables an even more vivid, high-contrast view of images and camera settings.

Compatibility with a wide range of interchangeable lenses dramatically expands the artistic possibilities of the E-mount camera system.

Ideal for everyday shooting, the low-profile E 16mm F/2.8 (SEL16F28) ‘pancake’ lens minimises bulk when the camera is being carried in a coat pocket. Its field of view can be boosted even further by the VCL-ECU1 Ultra Wide Converter and VCL-ECF1 Fisheye Converter that deliver high-definition optical performance in a sleek, co-ordinated design.

Featuring in-lens Optical SteadyShot image stabilisation for clearer handheld images, the E 18-55mm F/3.5-5.6 zoom (SEL1855) is a perfect travel partner. The NEX-5 and NEX-3 are available in kit form with either lens, or as a double-lens kit that provides even greater shooting versatility. The NEX-5 can also be specified as a kit with the optional E 18-200 F/3.5-6.3 zoom (SEL18200) that offers a powerful 11x magnification range plus Optical SteadyShot image stabilisation with Active Mode at wide angle for steadier movie shooting.

An optional LA-EA1 Mount Adaptor extends compatibility to the α family of 30 lenses, plus a huge range of other legacy A-mount lenses (Manual Focus only).

The NEX-5 and NEX-3 are also the first α cameras to offer the extra convenience of HD video recording. At the touch of a dedicated Movie REC button, both NEX-5 and the NEX-3 shoots HD video with stereo sound as compact MPEG4 files that are ideal for PC storage and web sharing. Full HD (1920 x 1080i) video captured by the NEX-5 as high-quality AVCHD files can be enjoyed on a connected HD television. As an option, the smart accessory terminal on both cameras accepts the compact ECM-SST1 Stereo Microphone (optional) that captures a high-quality soundtrack for your HD videos.

The NEX-5 and NEX-3 are the first α cameras featuring Sweep Panorama. Just press the shutter button and swing the camera side-to-side or up and down. A high-speed burst of frames is stitched together automatically to create detail-packed 23 megapixel panoramas with a 226 degree effective angle of view4. Panoramic files can also be enjoyed in stunning 3D on compatible BRAVIA™ 3D televisions.5

As previously introduced on the DSLR-A550, Auto HDR has been further refined. The NEX-5 and NEX-3 can now shoot a high-speed burst of three images at different exposure values that are electronically combined in the camera. This produces a single High Dynamic Range image with extended highlight and shadow detail.

Both cameras come supplied with a super-compact clip-on flash that attaches via the smart accessory terminal when needed for low-light shooting. Other optional accessories include the FDA-SV1 Optical Viewfinder plus colour coordinated cases and shoulder straps.

The NEX-5 and NEX-3 system cameras from Sony are available from summer 2010.

Saturday, May 8, 2010

Why Buy a Samsung 46 HDTV?

When it comes to socialising with friends, or just relaxing with your partner at the end of a long day or on one of those cold, blustery winter afternoons, there is nothing better than sitting on the sofa and enjoying a good movie.

It doesn't matter what you watch, whether its an action flick for the boys, or a sappy romantic comedy for a girls night, or just a session of comedy series and dramas to pass the time, watching TV is an experience that has to be enjoyed, and there is no better way to watch than on a Samsung 46 HDTV.

High Definition technology has revolutionised the way that we watch TV, bringing us clearer and sharper images, and even better crisper sound quality. A Samsung 46 HDTV does just that and more, bringing superior television viewing from DVD's down to the regular broadcasting stations.

When you purchase a Samsung 46 HDTV, you do not just purchase a great television set, but also the opportunity to enjoy the next wave of movie technology in the form of Blu-ray discs, movies that have images 20 times sharper than normal DVD's. The Samsung 46 HDTV has the capacity to insert an HDMI cable and connect to the Blu-ray player and enjoy the discs to the fullest thanks to the High Definition capabilities of the set.

The Samsung 46 HDTV is widely available from almost any good electronics outlet, and not forgetting the wealth of shopping avenues on the virtual high streets created by the Internet. Simply enter your required product and watch as not only are you bombarded with options to buy the set for various prices, but also given sites that compare prices, guarantees and extra's along with it so that you know when you buy your Samsung 46 HDTV you are getting the best deal out there that suits you.

Buying a television in the modern world is very rarely just a matter of buying a TV. The majority not come with added gifts or extras such as DVD players, or the new Blu-ray players, or surround sound stereo systems. This is also something to watch out for, because many times you can get a complete home entertainment system for a much lower price than if you bought everything individually.

If you enjoy watching movies or television of any kind, then high definition is the way to go, even sports and soap operas are being broadcast in high definition now, meaning that there is something to be gained by everybody in the family and not just yourself.

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What You Ought to Know Concerning Toshiba Televisions For Sale

I would likely assume that if you have chosen to read over this particular article, you are about to purchase a new or replacement high definition television and you want to know who's the best. Everybody's different, but many of them seem to be in agreement on Toshiba televisions and the impact they have left on the HDTV world.

For many years, Toshiba has worked really hard to gain the trust and reputation that they have with the people that buy their products. They allow for a slice of excellent craftsmanship to mesh with a little bit of competitive pricing. That is a mixture that has proven to just be unlike other companies in the business that Toshiba competes with.

One of the things that you should keep in mind about TVs from Toshiba is the price that you are asked to pay for them. If this is not your first rodeo with buying a high definition television, than you are likely aware of the fact that these TVs can run a rather high price tag, so finding a model for a smaller price is quite a find indeed.

There are some finer points of considerations when you get down to actually buying a high definition television, even one from Toshiba. One of these is the size of the screen that you are going to buy. This is the very first thing that you usually notice about a television, so it's a very important decision for you to make. How big will your TV be?

The clarity and performance of the screen is another thing that you should be thinking about. Some have giant screens, but they just don't have the detail and vibrancy that others do. So make sure that you are seeing some sort of example as to what you can expect. The things to look for are deep blacks and some bright and vibrant colors.

Another thing that you might want to look out for is some specific features that may not be available on all models or makes. Some of these features that you might want to check out are built in players, HD antennas, and connection to wireless or bluetooth devices. If any of it interests you, you can find a model with the features.

If you were wondering why you might want to choose Toshiba over any other makes of televisions that are out there, than it really rests on the performance of these products against the price you are asked to pay for them. Toshiba televisions are great pieces of technology, that you are very likely to love. So take your time and make an informed decision.

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Saturday, May 1, 2010

Get the Best Sharp LCD HDTV

Sharp is a very well-known and trusted brand that provides high-quality products to its customers. They are one of the longest companies who specializes in appliances and electronics. Sharp's AQUOS widescreen LCD HDTV is one of their best in the market.

With its release, consumers have continuously provided positive feedbacks to this product. This model also includes a Blu-ray disc player which is built in. With this feature you need not have a separate player and you are also able to watch movies at high-definition always. Sizes for this model ranges from 32 inches up to 52 inches which will fit any space you have at your home. Some might think that since it has a built-in Blu-ray disc player it costs a lot but actually it is the opposite. This model is very affordable and a lot of satisfied customers will attest to it.

To prove to you that the AQUOS wide screen Sharp LCD HDTV is very affordable, you can buy the 52 inches at no more than $1800 online. Aside from already having a Blu-ray disc player, it also provides you with two other video inputs for other HD sources. To make it even better, the so-called Dejudder technology Fine Motion 120Hz is integrated on Sharp's LCD HDTV lineup also with anti-glare features and is known to be energy efficient.

If you are still looking for a Sharp LCD HDTV model that is cheaper then there are other models that does not include a built-in Blu-ray disc player. It may have cheaper price but it still offers the same quality. If you want to go for the huge 52 inches Sharp LCD HDTV then you should get the Aquos LC-52D65U if you want to get your money's worth. And other models that you should take a look at are the Aquos E77U Series and the Sharp E67U Series. Sharp has really outdone itself by providing us with high-quality and affodable LCD HDTV lineup. [http://hdtv-guide.wetpaint.com]Sharp LCD HDTV lineup has really made it big in the market and because of their affordable prices, more and more consumers are buying it. More HDTV reviews at [http://hdtvguide.net]HDTV Guide.

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