Latest Electronic Gadges

Take a look on types of LED technology

2009-11-06T23:53:00.001-08:00

In LED display we use light-emitting diodes for displaying a picture. As compare of a normal display an LED display is a small display or a component of that large display. They are typically used in store boards or outside the wall of the building for advertisement purpose, and now it is using in the destination boards of the public transport vehicles. And now this technology is introducing in our TVs. Now we can see the TVs with a new experience.

There are two types of LED panels; one is using discrete LEDs and other one is surface mounted device panels. Most of outdoor screens and some indoor screens are using discrete LED’s. We also know it as individually mounted LEDs. To create a full color pixel we use 3 different colors diodes together, usually square in shape. The distance between the pixels is measured from center to center for getting absolute pixel resolution. The biggest LED display is located in Las Vegas in the world which is 1,500 foot long. And the biggest LED television is in Cowboys Stadium in the world which is 72 square foot.

Most indoor screens in the market build using SMD technology means surface mounted device technology. In this technology we use red, green and blue diodes on a chipset for creating a SMD pixel. This chipset is then mounted on a driver PC board. These individual diodes are smaller than a pinhead and therefore set closer to each other. The main difference is that the maximum viewing distance is reduced by 25% as compare the discrete diode screen with same resolution.

To use this technology for indoor like in TV sets it requires SMD technology and therefore a minimum brightness of 600 candles per square meter. This will be more than sufficient for corporate and retail application, but higher brightness may be required under high ambient brightness conditions for visibility.

Auto shows and Fashion world are the two main example of high brightness stage lighting. They require more brightness therefore they use higher LED brightness. If you have outdoor use then at least 2000 sc/square meter is required for most situations, where the sunlight comes directly on the screen. The brightness of the LED panels can be reduced with a complex design if required.

These are all about the types of the LED technology and where it is useful. You have to know about it because now it is using in TV sets also. So before purchase a LED TV you need to read a review.

LED TV Technology

2009-10-30T02:34:00.000-07:00

This is the new keyword for many people but you are not unknown from it. If you have been go to watch any sporting event so perhaps a large screen TV you seen in the stadium. That large screen TV makes easier to follow the game. On the screen you can see instant replays, close-ups and profile of a player. We wondered that how the people make a TV that is around 60 feet.

Decoding of the signal in the LED TV and general TV is almost same. A large screen jumbo LED TV and a simple TV both takes video signal and convert it into points of light.

CRT Technology is great only for indoors, but if you put the TV into sunlight than there is no more to display. The phosphor on the CRT is not enough bright to compete with sunlight. Therefore you need a different technology for a bigger and brighter image. That is enough brighter to compete with sunlight.

There are two big differences between a jumbo TV screen that we see at a stadium and the TV in the home:

1. Obviously, there is more difference in the height of both TVs. Jumbo TV might be 60 feet high instead of 18 inches high home TV.

2. It is very bright so that people can see it in sunlight.

To accomplish these feats, almost all large-screen outdoor displays use light emitting diodes (LEDs) to create the image.

LEDs are a little colored light bulbs. Today’s LEDs are small, extremely bright and relatively little power consumption for the light that they produce. You can see other places where LEDs has used, outdoors on traffic lights and automobile brake lights.

In a jumbo TV, red, green and blue LEDs are used in place of phosphor. Three or four LEDs (one red, one green and one blue) are used to create a "pixel" on a jumbo TV. Dozens of LEDs are used to create a pixel in the biggest jumbo TVs. The collection of LEDs to create a pixel called a module. Pixel modules typically range from 4 mm to 4 cm (about 0.2 to 1.5 inches) in size.

To build a jumbo TV, you have to take thousands of these LED modules and then arrange them in a rectangular grid. For example, the grid might contain 307 by 200 LED modules, or 640 by 480 modules. The size of the ultimate screen depends on the size of the LED modules.

Jumbo TV screens have started to pop up in all sorts of places, and in all sorts of sizes as the LED prices have dropped. You can now find LED TVs indoors in places like shopping malls and office buildings and specially areas that attract lots of tourists.

So if you want a brighter and quality image with a large screen TV into your home then just go and buy a LED Technology TV set.

LED TV is the future of Television

2009-10-29T22:33:00.000-07:00

If you are thinking of buy a LED TV then first you have to remember these things because you are going to spend around $1500 to have it. Any market has lots of competitors; there is nothing new in the electronic market also. Every company gives his own opinion about his product. They describe many things about his product but never tell any default. But there are some defaults also behind every technology. You have to decide the right product and company for your sweet home.

There are many feature are included in the new LED technology like low power consumption, brightness and quality of the image. The Improvements Now that we've established that this is LCD TV with an LED backlight. Let’s look that how this new technology of TV improves on current TV technology such as standard LCD and plasma.

1. Picture Quality: The picture quality has been improved over standard LCD and Plasma. Because in this technology they have increased much range of colors. And in the place of traditional lamps for source of light they use of Light Emitting Diodes. The LED produces blacker blacks and whiter whites so this change provides a higher contrast ratio. This is the key to achieve high quality images on screen.

2. Environment: LED Technology consumes very less power as compare current LCD TV technology. This is helpful to save our electricity bills.

3. Size: There is no provision for a conventional light source is required therefore LED TVs can be made ultra thin. This will makes for a thin, sleek, more attractive model.

If you are going to market for a TV now and want a TV with an advance picture quality as compare current standard LCD and Plasma, there is lots of range in the market, and then you cannot go far wrong with an LED TV.

However, if you have time at present to purchase a television and you require a TV with a high technology then you have to wait some time because after some time there are many new technologies will become available in the market like OLED TV that will keep it at the forefront of cutting edge.
Both are emerging technologies and require some time, because they are finding their place in the market with the correct size screens. These will be helpful for sports ground because grounds require big screen and more brightness. This is the possibility that you have to pay a huge amount for these TVs.