LCD vs. LED
Entering 2009, the word “LED” emergences more and more frequent in front of us. Earlier this yare,on the CES exhibition in United States, Samsung showed us a LED TV with the degree of only 6.5mm thin which is rated the world’s thinnest television. Then all the LED products rushed into the consumer electronics market, lots of manufacturers develop LED products fro a better sale. Besides most international brand gradually keep their focuses on this field. As a matter of fact, more and more electronic gadgets applied the LED or LCD technology to some extent such as MP3 Player, Mobile Phones Digital Camera, Notebook, and Projector, etc. well, the LED is on its way, is LDC on the contrary no more useful? Which one is to get the top place? Here are some advantages and disadvantages of those two, why not make the right decision yourself!

Compared with the LCD, LED have great advantages on brightness, consumption, and refresh rate, etc. it support a wide vision up to 160°angle and could display a variety of text, numbers and animation information, at the same time broadcast television, video, VCD, DVD and other color video signals. The LED technology widens the range of application for a thinner, brighter, clearer display. On the contrary, LCD is more frequently applied to outdoor large screen display for its lower resolution.
Talking about the cost, LCD is a little bit expensive in that the technology, materials and equipment applied were imported, and the liquid crystal display indeed smaller injury than the LED.
Anyway, both of them have their respective pros and cros. It depend on your own requirement,

what about your choice?

Your TV Set becomes wireless

The borderline between the PC and TV becomes greyer these days as the TV Screens becomes of better picture quality, design and functionalities built into them.

At the same time the Pc’s becomes more and more advanced and can utilize better screens as well.

Several of the TV producers offer screens with internet connections and wireless network options. This will provide the consumers with a huge amount of options.

Science Fiction movies from the 80s and 90s showed us the TV as the hub of information all from ordering food to look at the weather and become a knowledge center. This is today maybe not so far from the reality. The TV set has had a very strong position in the homes of the people, and has acted as the entertainment center for the family. Today this position has been challenged by better and better computers with larger and larger screens, and the option to connect to larger TV screens. The TV sets fights back and has become stronger in the home arena again as it can provide entertainment as well as useful information.

Wireless confusion

Terms like medialink, Internet-TV, Wireless and so on are words the producers are using in their marketing campaigns to reach you as a customer. These expressions can confuse even the most informed person and it is not easy to find out what are these functions provided.

There are today mainly two types of “wireless” screens in the market. The most common type is the screens which are using wireless transfer to connect to your home network and get access to internet and other services.

The other type is screens that use wireless technology for video transfer. It is also possible for a TV screen to have both options built in, both wireless network and wireless video transfer between the screen and the video unit.

The most advanced flat screens today have become so thin that there is hardly room for any contacts on them any longer. At the same time our demands for options to connect increases. The solution to this challenge is to move the TV receiver into a separate unit to enable a as thin as possible screen. You only need a signal cable between the unit and the screen and power to get going. Some producers like Phillips transfers the power and signal in the same cable even.

The most advanced screens from Sony and Panasonic use wireless signal transfer.

Wireless video transfer

A connection between the screen and the receiver is made and the screen on the wall is no more than a monitor with one simple video input.

The TV receiver and all control electronics are all in the separate unit. In some cases the screen will have IR (Infrared) receiver so it can transmit the remote control signals to the unit where all the commands are executed.

The purpose of the wireless transfer is first of all to make a visual elegant and discrete TV screen solution. A minimum of cords makes it easier to create an elegant installation in any type of room and setting. The wireless transmission makes it possible to place the TV receiver away from the screen, and you can have the TV receiver in a cabinet with the blue-ray player and other electronics somewhere as the super thin screen can be installed on the wall as an elegant installation.

To transfer wireless HD-video is no simple task as it requires a high bandwidth and transmission capacity. So far the producers have only succeeded in transferring video signals up to 1920 x 1080i (interlaced) resolution. This is good enough for HD resolution transmissions, but will produce a reduction in quality of pictures produced by a blue-ray player. Video signals from the blue-ray player will require a high bit rate and a resolution of 1920 x 1080p (progressive). 

Today’s wireless models must be able to at least in theory to sacrifice some of the picture quality to achieve design and practical advantages.

Sony KDL-ZX1 is one of the first TV screens on the market with wireless video signal transmission in 1080i quality. The new top model from Panasonic in the Z1-series also use wireless transmission of video, so called WirelessHD.

TV with wireless network

The TV use Wi-Fi technology to connect to the local network. From this the TV can log into internet and offer a series of interactive services as news, weather forecasts and YouTube videos.

When the TV becomes part of your home network it can be used to show your photo collection, show home videos and play music which is stored on your computer.

TV sets with built-in internet has so far limited processing speed and can not be used for heavy duty software like computer games and so on. The functionality is also limited by the commands you can perform via the remote control unit, and that is in most cases say simple navigation through menus.

Some TV sets do not have built-in Wi-Fi though and only offers Ethernet cable connection. But these units usually have a separate USB connection which can be used to connect a USB unit that connects them to the wireless network.

The new 7-series LED TV’s from Samsung has apart from superb picture quality functionalities like Medi@2.0 which boosts internet services (widgets) and streaming of photos, video and music over the network.

PC-TV

Some producers have gone even further and integrated a more or less full blooded PC within the TV set itself. While the TV sets with built-in network limits itself to simple and TV oriented media functions, the PC-TV can be used as a regular PC. The TV will have a built-in operating system like a normal PC has like Windows or similar and is controlled by a mouse and keyboard like a normal PC.

A PC-TV is powerful enough to perform the same tasks as a stationary or laptop PC can do. The difference is that you can surf on the internet , perform document handling, gaming and watch video on a much larger and better screen than you can from the normal PC.

Panasonic offers the web function called CAST on several of its latest models. The CAST function gives access to Youtube, news, weather forecast and video services from online partners of Panasonic.

The PC-TV from Crea is one of the first TV sets on the market with an integrated PC in it. Crea Kronos has a built-in Intel Atom Processor, 80 Gb hard disk, 1GB RAM and Windows Vista Operating system which is controlled by mouse and keyboard. To ensure optimal picture quality the PC is connected through one of the HDMI inputs which eases video and movie transmissions.

Where does the border go?

The border between the PC and TV is not as clear as it was just some few years back. Both units begin to be capable of doing what the other is doing. Lots of the same tasks can be done in either one of them. The difference between the PC and TV is easiest described by the expressions “lean backward”. The PC is most suited to tasks that require you to lean forward like work, word processing, e-mail, and search for information. As when it comes to entertainment like movies and TV shows, you will most likely lean backwards in the coach or a good chair and rater use the remote control to seek the entertainment you wish to indulge yourself into.

There is a wide variety of different LED lights available out there. These lights come in various shapes and sizes and are used for a diverse range of purposes. These state-of-the-art lights are designed with resistors as low-power LEDs and they are also available as high-power lights for more robust operation. You can choose from 1W to 3W high-power LEDs, LEDs with wire and resistor, wireless LED remote controller, LED car kits, LED sign boards, LED strips, household bulbs and many more. All these models and styles are used for different purposes including home décor and customization of vehicles. The uses of these powerful lights are unlimited and therefore they are appreciated all over the world.

LED lighting is also used for security reasons and as traffic lights. Since these lights consume very little power they are ideal to be used for long operations or where they are required to remain on for an indefinite time period. LEDs are better than incandescent light bulbs or other traditional lights as they do not heat up very quickly. Almost 80% of the energy consumed by LEDs is converted into light and only some of it is dissipated as heat. Because of the same reason these lights last for a long time and are definitely a cost-effective option.

Basically LEDs are available in three categories: LEDs for cars, LED flashlights, and LED bulbs or strips for home. LED tubes with different patterns are also becoming popular in today’s stylish and high-tech world. These lights can be used to decorate almost anything and they come in red, blue, green and ultra violet colors. LED lights are very bright and can be used in cars, computers, motorcycles and snowmobiles. These lights can be recognized easily from a distance and are therefore used on sign displays such as danger signs and as police warning lights.

LED rope light for household use is yet another wonderful light that one can use for home décor. These lights look pleasing to the eye and can be used to outline the boundary of an object such as a coffee table or TV trolley. They come with 36 LEDs per meter in different colors like red, blue and white. They can also be used as outdoor décor items and as hanging lights on weddings and parties. Since these lights come in exciting colors they are used by many stylish people who love luminosity and brightness.

LED car kits are also admired by a lot of car enthusiasts all over the world. These LED lights create an under-car halo which looks lovely. This LED car kit requires 12V power and comes with 2.1 million color output. It has the ability to display one color at a time and the pattern can be chosen according to the terrain or situation. These lights are made waterproof and they last for many years to come. The best thing about these kits is that they are not very expensive at all. You can get a wonderful LED car kit with remote controller and all wiring for somewhere around $200 which is quite reasonable.

LED lights have infinite uses. Ranging from simple 5mm & 8mm LEDs with resistor to high-power multi-purpose LEDs, these lights are strong and long-lasting. They are designed to operate non-stop for long durations because of extremely low power consumption and very little heat dissipation. They are ideal to be used as ambient and architectural lights as well as medical and convenient lights. Par 38 and Par 20 household LED bulbs are very practical and useful. They can be used for bright kitchen lighting and office lighting.

The borderline between the PC and TV becomes greyer these days as the TV Screens becomes of better picture quality, design and functionalities built into them.

At the same time the Pc’s becomes more and more advanced and can utilize better screens as well.

Several of the TV producers offer screens with internet connections and wireless network options. This will provide the consumers with a huge amount of options.

Science Fiction movies from the 80s and 90s showed us the TV as the hub of information all from ordering food to look at the weather and become a knowledge center. This is today maybe not so far from the reality. The TV set has had a very strong position in the homes of the people, and has acted as the entertainment center for the family. Today this position has been challenged by better and better computers with larger and larger screens, and the option to connect to larger TV screens. The TV sets fights back and has become stronger in the home arena again as it can provide entertainment as well as useful information.

Wireless confusion

Terms like medialink, Internet-TV, Wireless and so on are words the producers are using in their marketing campaigns to reach you as a customer. These expressions can confuse even the most informed person and it is not easy to find out what are these functions provided.

There are today mainly two types of “wireless” screens in the market. The most common type is the screens which are using wireless transfer to connect to your home network and get access to internet and other services.

The other type is screens that use wireless technology for video transfer. It is also possible for a TV screen to have both options built in, both wireless network and wireless video transfer between the screen and the video unit.

The most advanced flat screens today have become so thin that there is hardly room for any contacts on them any longer. At the same time our demands for options to connect increases. The solution to this challenge is to move the TV receiver into a separate unit to enable a as thin as possible screen. You only need a signal cable between the unit and the screen and power to get going. Some producers like Phillips transfers the power and signal in the same cable even.

The most advanced screens from Sony and Panasonic use wireless signal transfer.

Wireless video transfer

A connection between the screen and the receiver is made and the screen on the wall is no more than a monitor with one simple video input.

The TV receiver and all control electronics are all in the separate unit. In some cases the screen will have IR (Infrared) receiver so it can transmit the remote control signals to the unit where all the commands are executed.

The purpose of the wireless transfer is first of all to make a visual elegant and discrete TV screen solution. A minimum of cords makes it easier to create an elegant installation in any type of room and setting. The wireless transmission makes it possible to place the TV receiver away from the screen, and you can have the TV receiver in a cabinet with the blue-ray player and other electronics somewhere as the super thin screen can be installed on the wall as an elegant installation.

To transfer wireless HD-video is no simple task as it requires a high bandwidth and transmission capacity. So far the producers have only succeeded in transferring video signals up to 1920 x 1080i (interlaced) resolution. This is good enough for HD resolution transmissions, but will produce a reduction in quality of pictures produced by a blue-ray player. Video signals from the blue-ray player will require a high bit rate and a resolution of 1920 x 1080p (progressive). 

Today’s wireless models must be able to at least in theory to sacrifice some of the picture quality to achieve design and practical advantages.

Sony KDL-ZX1 is one of the first TV screens on the market with wireless video signal transmission in 1080i quality. The new top model from Panasonic in the Z1-series also use wireless transmission of video, so called WirelessHD.

TV with wireless network

The TV use Wi-Fi technology to connect to the local network. From this the TV can log into internet and offer a series of interactive services as news, weather forecasts and YouTube videos.

When the TV becomes part of your home network it can be used to show your photo collection, show home videos and play music which is stored on your computer.

TV sets with built-in internet has so far limited processing speed and can not be used for heavy duty software like computer games and so on. The functionality is also limited by the commands you can perform via the remote control unit, and that is in most cases say simple navigation through menus.

Some TV sets do not have built-in Wi-Fi though and only offers Ethernet cable connection. But these units usually have a separate USB connection which can be used to connect a USB unit that connects them to the wireless network.

The new 7-series LED TV’s from Samsung has apart from superb picture quality functionalities like Medi@2.0 which boosts internet services (widgets) and streaming of photos, video and music over the network.

PC-TV

Some producers have gone even further and integrated a more or less full blooded PC within the TV set itself. While the TV sets with built-in network limits itself to simple and TV oriented media functions, the PC-TV can be used as a regular PC. The TV will have a built-in operating system like a normal PC has like Windows or similar and is controlled by a mouse and keyboard like a normal PC.

A PC-TV is powerful enough to perform the same tasks as a stationary or laptop PC can do. The difference is that you can surf on the internet , perform document handling, gaming and watch video on a much larger and better screen than you can from the normal PC.

Panasonic offers the web function called CAST on several of its latest models. The CAST function gives access to Youtube, news, weather forecast and video services from online partners of Panasonic.

The PC-TV from Crea is one of the first TV sets on the market with an integrated PC in it. Crea Kronos has a built-in Intel Atom Processor, 80 Gb hard disk, 1GB RAM and Windows Vista Operating system which is controlled by mouse and keyboard. To ensure optimal picture quality the PC is connected through one of the HDMI inputs which eases video and movie transmissions. 

Where does the border go?

The border between the PC and TV is not as clear as it was just some few years back. Both units begin to be capable of doing what the other is doing. Lots of the same tasks can be done in either one of them. The difference between the PC and TV is easiest described by the expressions “lean backward”. The PC is most suited to tasks that require you to lean forward like work, word processing, e-mail, and search for information. As when it comes to entertainment like movies and TV shows, you will most likely lean backwards in the coach or a good chair and rater use the remote control to seek the entertainment you wish to indulge yourself into.

If you’ve decided on buying a new LCD TV, over alternative technology such as plasma or the latest expensive LED TVs, then you are set to bag yourself a bargain. Regardless of whether you desire a little 17 inch model to go in the kitchen, or an expansive 40 inch plus screen to have pride of place in your lounge, now is the time to by an LCD TV.

That is because the prices of LCD TVs have dropped considerably since they first hit the market en masse, and now retailers are forced to be even more competitive in order to sell their products in uncertain economic times. A combination of improved technology, resulting in better quality manufactured sets, and the fact that many people have already bought into flat screen technology over the past couple of years means that there are some cracking bargains to be had, whether you decide to buy a LCD TV online or whether you nip down to your local electrical retailer.

Plasma TV prices have also dropped dramatically as many manufacturers have opted to discontinue making them, proving that the LCD screen option was the better bet all along! In a recent North American study it was found that LCD TVs outsold plasmas by over seven to one during 2008, probably hastening the decision to end plasma screen production!

Although plasma pictures were considered to be superior the recent improvements in quality have significantly narrowed that gap. Even Liquid Crystal Display (LCD) TVs with a screen size in excess of 40 inches now boast a better quality picture than earlier models. In addition, plasma TVs consume vastly more electricity to deliver their picture quality, which is this day and age of global green awareness is probably why they are falling by the wayside.

Finding a discount LCD TV is sometimes a bit of a challenge, but there are always bargains to be had.

Of course when you are searching for an LCD TV, it is best not to look solely on price, even if it seems like a bargain. There is a balance to be found between finding an LCD TV with a good sound a picture while at the same time picking it up for a decent price.

What is a LED TV

A led TV is an LCD TV that uses LEDs to illuminate the display. There are two ways to do this: either by placing LEDs across the entire back of the display, or by placing LEDs just around the perimeter, which is called an “edge lit” display. Both techniques use less power than plasma TVs and LCD TVs lit with fluorescent tubes.

History of LED TV

LED technology was first used as status and indicator lamps. Over the past six years though, it has been developed to meet general lighting application demands. Samsung is among the first to incorporate light-emitting diodes (LED) into television technology, it is called the LED TV which is now taking the technological world by storm. Samsung uses a term LED TV (light emitting diode television) for describing LCD (liquid crystal display) TVs which utilizes LED Backlighting. LED TV is a controversial term effectively used for the advertisements between Samsung and its competitors. But the complaint of the competitors is, LED TV produces a display of 100% LEDs and which is not compromised in this. LEDs in their current form are much too large to be individual pixels on a conventional television. In order to capture some of the hype around O-LED TVs, Samsung has chosen to brand their LED-lit range of LCD TVs but still except for the Sony XEL-1 they are not commercially available. LED-backlit LCD TVs do differ from conventional LCD TVs in some important areas: 1. LED televisions can produce bright image and deep blacks (doesn’t work for Edge-LED). 2. They can be extremely slim with Edge-LED lighting. 3. LED TV offers lower power consumption. 4. Especially when RGB-LED backlighting is used, LED TV also offers a wider colour gamut.

LED in Television Application

LED technology captures the natural colours of real life with the production of darker blacks, crisp whites, and strong contrast between dark and vivid colours. Samsung also enhanced its LED-powered products with Auto Motion Plus frame interpolation, which effectively reduces image judder and motion blur.

People all across the world spend hours watching television. They get hooked on their favourite shows and even discuss the characters as if they exist in real life. They become addicted to TV gaming options and new connection capability. Due to this, creating a clearer, a bigger, and a more realistic television screen has become a venture for all electronic manufacturers. While the LCD television and plasma television sit high on the high quality TV list, the latest in discoveries comes from LEDs in the LED high definition television.

From the trial of using LEDs for color and clarity in screen projection has evolved the LED television. LEDs are better than fluorescent or incandescent bulbs at directing light in a single direction. These television have much the same features as LCD TVs except that they make use of LEDs. The LEDs are either placed along the outer edges of the screen or across the back of it. Television with perimeter LEDs are edge-lit and televisions with LEDs in the back are back -lit.

The use of LED technology in a television allows for slightly different viewing. The size of a television screen using LEDs is limited to 40 inches or greater thus the screen is much larger than those of other TV types. However, the screen is slimmer and sleeker in depth. Typically, a LED television with LEDs along the perimeter of the screen cost less than a TV with back-lit LEDs. Using LEDs around the edges of a TV allows for an even narrower screen option. Yet, a back-lit LED television screen allows for local dimming in which darker blacks are created when LEDs are shut off.

The cost of the clarity and color improvements with a LED HDTV comes with a cost. An upgrade to one of these televisions may cost the buyer up to $4000. Yet, with the upgrade the viewer gains much intensity in action films and gaming. LED TVs are more efficient at creating excellent pictures of fast motions. The LED HDTV manufacturers also claim that television cuts energy consumption by 40%.

The close competition between LCD, plasma, and LED TVs leads to a need for great comparison from the buyer before making a final decision and purchase. While the plasma TV offers a great viewing angle, its reflective screen is often troublesome in light. LCD TVs work well for basic viewing needs but the bulbs do not compare to the newer LED TV creation. The newer LED TVs take the lead when it comes to the picture produced.

The LED screen has allowed for the capabilities of larger, wider screens. These LED screens are composed of many LEDs combined to form small dots or pixels. A color LED screen has three colors of LED pixels. The pixels are red, green, and blue. When put together, these pixels form white. One single meter of a LED screen can house over 9000 pixels. The number of pixels per meter is determine by the pixel pitch, which is the distance between each pixel. The smaller the pixel pitch in an LED screen, the higher definition the viewer receives and the higher cost the buyer pays.

In addition to the discovery of LED screens in the television world, NCE has broken through with the LED monitor. The LED monitor, like the LED TV screen, promises to offer the best color and clarity. Again these features are not priceless. A LED monitor offers the same features of the LCD flat panel monitor but with more accurate coloring. The high end of the LED monitor price spectrum ranges up to and over $6000. However, one positive aspect about the LED monitor is the absence of Mercury as found in fluorescent backlights.

All reviews and indicators point to LED technology as being the electronic of the future. While high cost and screen size limitations are a factor in the LED world now, manufacturers show promise of working through these issues. In given time, LED electronics could possibly be a normal in the homes of all television watchers.

Not everyone is a physicist or a LED expert and designer. The average electronics consumer (that might know a few things about LED devices or any other illuminating apparatus) has to be informed on the important place LEDs hold in our life. Because everyone has seen a LED, but perhaps doesn’t know of its existence, we consider it our duty to tell you some things about it.

LED stands for Light Emitting Diode and it performs a great variety of functions, being found in many household appliances. Every blinking LED is a genuine unsung hero of the electronics’ landscape. The amazing LED colors vary, depending on the composition of the materials used and the outside conditions of the above mentioned semiconductor, ranging from almost ultraviolet to the visible spectre or even the infrared light. To put it shortly, a LED sign is simply a small series of light bulbs that can be inserted rapidly into electrical circuits. The major difference between a LED and some other common incandescent bulb is that, the LED doesn’t contain any filament which may burn out or get too hot. You can burn your fingers with a LED, as every LED is illuminated just by the rapid movement of electrons in a semiconductor material. A standard LED generally lasts as long as a normal transistor.

These devices can create the ciphers on digital clocks, light up your wrist watch, send information from a remote control or even warn you when an appliance is turned on. When altogether connected because of decorative or practical reasons, they can accomplish marvellous things as the LED illuminating sign of an everyday traffic light. In fact, the most obvious purpose LEDs have is to advertise and sell services and products.

After getting acquainted with what a LED is, one can focus on the uses of a standard LED. Our company has to step in at this moment to give you some ideas on how you can use a LED. We welcome you to the LED Signage Revolution, a concept created and put into practice by sign experts and top LED specialists. Xstreamsign.com offers you the most recent sign LED solutions in colour changing signage. This revolutionary sign technology gives you the chance to accomplish extraordinary things with your company’s branding sign and attract as many clients as you wish.

If you know exactly how you want your clients to perceive your image, if you want your brand to stand out when people pass by, if you want to capture everyone’s attention, then you have to appeal to the best LED effects and use the best colors and shapes for your sign. To get your brand profile known on the market and to develop new and improved connections with your company’s clients you have to use the advantages a LED sign can give you. Yes, LED signage is useful not only for appliances, but for marketing also. Sign LED technology can make it easy for you to change your corporate colors and improve your business.

These complex devices are organized by a Sign Brain Cell, meaning an extremely tiny controller, the smallest in stature digital LED programmable controller built until now. Even though it measures only 80mm x 40mm x 20mm, this piece of equipment for sign illumination does a miraculous job. It ensures that your company’s colors attract potential customers by all means. It enlightens about the possibilities your company can offer and sells your image in the most appealing way.

The X-Stream Sign system is represented by a modular RGB LED signage option. This modular system refers to the fact that it can be complex or simple, depending on your choice. Some high-tech sign modules are interconnected to form small basic systems or larger ones for more sophisticated signs of different scales and with color changing animated Sign drawings. These last complicated ones are run from a computer over a connected network and can indeed be called a work of art. A lot of work is put into the creation of a LED sign, but the effort is repaid through an eye-catching light show.

Our company can provide digital LED signage that can vary from the simplest advertising text to still pictures and to 3D animated videos. There are even available audio options. Generally, retail industry operators of digital signage firms see their colorful full-motion banners as comparable to TV broadcasting channels, entertaining parading or data distributing advertisements. The LED signs are popular and they enchant, inform and thrill just like any of the above mentioned ways of promotion. So, if you are company looking to get noticed, you should definitely try a LED sign!