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LCD and LED TV

For more than 60 years the television has been the center of the living room in homes all across the world. It started with box like black and whites and today there are flat screen monitors which provide the most colorful and clear display that you can imagine looking at. You have probably heard of LCD or LED flat screen monitors, but really having no idea what the difference is or which is more functional in the home. Television has increased in the number of channels you can watch and with DVRs and Netflix offerings there is a world of entertainment that a person can enjoy, so it is important that consumers know what they are getting with each choice.

LED

When you look at a LED television you are actually looking at LCD’s. These two versions of the television are the same except for the kind of lighting that illuminates the picture. LCD has been used commonly since the early 1970’s, this technology first showed up in digital watches. Liquid Crystal Display (LCD) is simply a term for the use of a liquid which is pressed between two clear plates and as changing current is applied to the fluid the image changes. The LCD’s were originally only in black and white, but recently technology has allowed for the production of color LCD Television. Since the LCD doesn’t emit a light of its own, there needs to be a light source behind it that allows for the picture to be seen.

There are currently two manners of lighting the background of LCD flat screens. One is CCFL, Cold-cathode fluorescent lamp, and LED, light emitting diode. It has been more common for CCFL to be used in lighting of these screens. The tubes are organized in a horizontal pattern behind the screen. However, now the LED lighting is becoming the most efficient for the better picture it provides. Now when you are shopping for a large screen television it is important to know what type of lighting is being used behind the picture. Consumers can choose from back lit or edge lit LED’s. This refers to the location of the lighting, either directly behind the screen or on the edge of the screen. The back lit lighting allows for a greater contrast in picture and easier adjustment, but the edge lit screens allow for the monitors to be created extremely thin.

No matter what type of screen that you ultimately choose as the showpiece of your living room there are going to be a lot of information to process before you make a choice. No matter what type of lighting you ultimately choose LED or LCD there is going to be a new world of entertainment in your life.

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