Led vs Lcd
Many people are so much confused as to what type of TV that they should choose while going for shopping for an High Definition Television ( HDTV). In order to have a better understanding about the type of TV that we should choose, lets see what all and how all each differs from one another. Led vs Lcd . We have seen a drastic change in our living rooms by seeing the bulky boxes of CRT’s dead. The latest technologies that now run the HDTV display market are LCD and LED.
What’s the Difference Between LCD & LED
Lets see how and in what way each of them are different. Both the LED and LCD TV’s have liquid crystal displays. By Display we mean the portion where we actually see the picture. Both of them has liquid flat panel displays. The main factor that separate LED vs LCD are the backlighting they use to light up the display, and deliver colour, which enables the viewer to see what comes from your TV display. The most of the three technologies that are used are Plasma, CRT and LCD. LED only TV does not exist, what you actually have is that LED – LCD TV’s which are called as LED.
LED vs LCD – Backlighting
An LCD display has tiny sensors that are built into it. These are made to detect the 1 and 0′s of data that are send to it. Its crystal display adjust the data pixel by pixel, thereby using the light effectively which is directed from the backlighting to display what it reads. The received data is flipped immediately making the right flip colours down, by using the light from the backlighting to produce it to the front where we can see the picture. The LCD only TV uses (CCFL) cold cathode fluorescent lamp for the background light. While in case of an LED Tv they use LED’s for the backlighting. One main difference for LED vs LCD. You might know what LED stand for ( Light Emitting Diode) . The LED’s are placed in rows and they have avoided the use of plastic shield, which was used to distribute light. The introduction of sensors in the LED in place of plastic and also with the crystal display which controls the exact picture that is send through delivers more exact colour and more quality and lively picture.
Local Dimming is another factor which makes the difference in LED vs LCD , lets see what that is. The detection of darker areas of the picture by the LED TVs is a feature called local dimming. LED TVs has the power to display more darker scenes of the picture. This works by turning off and on of certain Pixels. Edge Lit LED is another kind of LED TV, When the frame of the picture is opposed to have an entire panel of LED’s we call them as Edge Lit LED. The advantage that it has is that it would give you a much thinner TV. The LED’s that surround are to provide direct light to the center of the TV. This technology is still being worked upon with many changes.
The LED TVs can detect the light that is around your TV, when this happens they dim, turn off some of the pixels which enables you to see the picture perfectly. You will easily understand this with this simple example. While you are watching TV the light from your window falls on the TV screen which makes it difficult for you to see it. I’m sure that we all might have experienced this. This corrects that with the help of the sensors. This feature even works in the dark, at night. LCD TVs lack this feature. This is another major difference in LED vs LCD.
Another point that we should note while considering about the LED vs LCD is about the Refresh Rate. Its an important factor that should be taken into consideration. Whats Refresh Rate in LCD and LED TVs. The different images that are being displayed by a TV, it needs to refresh its pixels and redraw them to bring in another image. If it fails to do that what you get is a still picture. Most standard LED or LCD only TVs have a refresh rate of 60Hz. In simple terms it means that a picture is shown 60 times per second, before a refresh action occurs and a new image is in place. For 37 inch LED or LCD 60 Hz is not bad. If you are opting for 40 inches or more then they need to have that extra push, most of the new models are equipped with 120 Hz for over 37 Inches now. If you prefer more than 40 inch make sure that you have 120Hz. 3D TVs, on the other hand, the larger the refresh rate the better your picture will look.
LCD vs LED – 720p vs 1080i vs 1080p
LCD vs LED another place of difference is with the resolutions. You might have noticed the 1080i (i) at the end of the numbers when it comes to resolutions what it means is “I” Interlaced (Alternate) and the 1080p (p) The “P” stand for Progressive (Together). When we read that a TV is 1080i what it means is that the TV displays 1920 pixels across your screen, and 1080 pixels down your screen. In case of 1080p it is displaying half the pixels across and down at the same time, and the other half of pixels across and down right after. The 1080p has the capacity to display all the 1920 x 1080 pixels across and down at the same time, that is why the “P” or Progressive resolutions are considered the best. If you prefer to go for a TV under 37 inches 720p would be the better option. Never go for 1080i models. The local channels, Cable TVs, and other services with HD channel included does not broadcast the programs in 1080p. They deliver to a maximum of 720p. So even if you buy a 1080p TV that does not mean that the output would be 1080p. It would only deliver 720p. Blu-ray players, DVD HD, PS3s, Xboxes all take advantage of the 1080p technology.
LED vs LCD – Power Consumption and Cost
LED vs LCD who wins while it comes to costs. I would say that the picture that we see has the answer to it. If we take a look we can see that the Old LCD TVs consume more power which is double when considered with LCD TV now. The LED model of Televisions has higher price tag but when it comes to power that difference is met in the long run with the electricity bill.
LED Vs LCD – Conclusions
I’m sure that you would very well know the answer to the question about LED vs LCD. LED wins by taking into consideration about the future. Most of the LED TV’s are future ready. They have better picture, 3D, Apple TV, and even gaming consoles. Power consumption adds another feather to LED.
