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Minggu, 08 Mei 2011

What's So Special With LED Display?

There is no debate LED backlit monitors are better than the elderly school variation, but some people appear to be uncertain about what the benefits are & how much it means in real-world terms. This article makes a solid attempt at walking you through durability, power consumption, & color representation as the key features in LED based displays.

Durability of LED backlight

LEDs, Light-Emitting Diodes are electronic circuit parts designed to give off light when electric current flows through them. To help with light refraction between air & the light emitting part itself, the whole unit is encased in an acrylic case, which makes LEDs hard to destroy.

LEDs are also well protected against shocks, knocks, vibration, dust, moisture & anything you could fundamentally destroy a CCFL light source with. They are long lasting & hard to kill, which is of the key aspects where LED monitors excel over non-LED ones.

Power Consumption

It is often cited as the single largest improvement over CCFL (Cold-Cathode Fluorescent Lamp, light tube in older monitors). The savings can go as high as 30 to 40 percent less than the elderly know-how. A monitor makes use of about $50 worth of electricity in a year, of which 40 percent is saved by LEDs. May not sound much, but you also need to keep in mind, that these screens operate for up to 100,000 hours without a major failure, which puts their useful life cycle to over a decade.

On the long haul, the reduced consumption can add up. Also, in office surroundings, where dozens of monitors are used for hours a day, wasted electricity can make a dent in the bottom line.

Color Accuracy

Often cited as a key element in picture quality. While it is not the only aspect of how lovely the picture looks, it is definitely an important factor. More interestingly, LEDs help with color representation a lot.

To understand how LEDs help produce more correct colors, here is how TFT monitors work in a nutshell. TFT transistors ram electricity through the LCD layer where a black pixel needs to be show. When LCD is under current, it turns opaque, or blocks light in other words.

The backlight is blocked where black or dark pixels are to be shown. LEDs usually have more predictable, more "flat" white spectrum than a CCFL light tube. It allows engineers to tune the way pixels work more exactly, which in turn means better looking colors. Color accuracy is important in graphic design jobs, & makes the display nicer to look at for a long time period.

To wrap up, let's quickly recap why LED monitors are better than non-LED ones, although they are more expensive. LEDs are more long lasting & harder to destroy than CCFL. LEDs use less power & thus save money, & at last, LED monitors usually have a better, more correct color palette to show.

With all that said, you don't always must go LED, if the cost is of significant importance. The backlight know-how alone can add up to $50 to the final cost, which in some cases pushes positive models out your comfort zone. CCFL monitors are still lovely & can be a pleasant buy in case you pick them well.

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