However, those who deliberately choose to buy the TV and LCD TV LED should consult expert David Katz Maier posted on CNet Technology week.

1. LED TV is not a new TV

TV LED LCD TV is still essentially the use of the backlight illumination LED (light-emitting diode) instead of cold cathode fluorescent lamp pole (CCFL – cold cathode fluorescent light). LCD TV with LED backlight appears in supermarkets electrical appliances since 2007.

Unlike the plasma and OLED, each pixel is a separate light source, LCD is illuminated from behind, also known as backlit.

2. There are two types of LED lighting

Initially, the LED screen as the Samsung LN-T4681F is illuminated by setting both the LED panels behind the LCD. But to create ultra-thin system, the engineers move to four LED light next to the screen and will be screened in the middle. This method is called “edge-lit”. Samsung has released three edge-lit series also will introduce Sony KDL-40ZX1M form earlier this year.

3. TV edge-lit slim but not all

As mentioned, the strength of edge-lit is a manufacturer of TV can be formed for thinner. But if the TV displays a white image, the user will see the outside edge of the screen brighter. Or if you put a black image, the edge of the screen looks gray away.

4. LED does not improve the LCD viewing angle

One of the weaknesses of LCD TV picture quality is less difference if a user sitting or TV set too high and low range compared to the eye. LEDs do not change this; even in some cases make the picture worse.

5. LED lights save energy than CCFL

LED technology reduces power consumption and a LED system is considered as flat-screen TV to save electricity on the market. This gadgets product is best Samsung cold cathode fluorescent lamp poles are also improved significantly. In other words best gadgets power is not necessarily important factor for comparison between TV and LCD TV LED tradition.

6. LED technology improved from

Backlight has been developed over time; especially edge-lit technology in the future can help the life of the system with ultra-thin-quality goods, even higher than the layout across the LED screen.

Now for the method of settlement are LED on the back, a perfect system TV to 2.1 million LED corresponding 2.1 million pixels (pixels) to match the resolution of 1080p. This is too expensive and the manufacturers are trying to maximize the number of LEDs in the base plate without the forward price rise.

7. LED technology = high prices

The market, more expensive TV LED backlight LCD TV does not use this technology to 400. The current high level can vary up to $ 2,000 for the 8500 Samsung 46 inch sizes sold price in 3500 when the U.S. system of traditional LCD LN46B750 only about 1700 dollars.

Of course, TV has many strengths LED (thinner, less power consuming, contrast, color gamut and higher speed scanning image). But consider the price, we can say, users will have to spend much higher than 25% but the quality is just over about 10%.

8. TV LED can achieve image gadgets quality as beautiful plasma TV

LCD TV Built for long been unable to achieve deep black like plasma. With LED backlight, black on the LCD TV can be compared with plasma. Not including, LCD power saving and lighter than even perspective remains weak points (with plasma, you can sit in any position, but still preserve the image).

9. If not properly set up mode product LED or LED are the same

Users can own the world’s best LCD TV but if you do not know how to set up very exclusive gadget accessories picture quality of the system that looks as normal as other TV reports.