How to choose an LCD TV

Before choosing an LCD TV in a store, it is worthwhile to think about at home where it will stand. It is also important to think about the size in advancescreen. The diagonal of LCD TVs ranges from 14 to 36 inches (1 inch = 2.54 cm). The more the diagonal of the TV, the farther away from him you have to sit. To ensure that you and your family do not spoil your vision, you will have to sit at least 2.8 meters from the TV screen.

Also it is worth considering that the choice of LCD TV depends on the screen format. There are two of them: 4: 3 and 16: 9. All modern TV shows are broadcast in 4: 3 format. The 16: 9 screen format is used to play movies from DVD. If the TV does not support a wide screen format, then the picture will be stretched in full screen, but trimmed from the sides. Operating 16: 9 TVs can play normal TV broadcasts, but in this case the image will be slightly cropped from above and below.

In addition to the screen format, you should pay attention to its resolution. All television transmissions transmit a signal to thePAL and SECAM formats. These formats correspond to the resolution of 720x576 (the number of pixels in width and height). Therefore, be sure to ask when you choose a LCD TV. It should be more than 720x576. If you plan to watch DVD movies on your TV, choose as much as possible the screen resolution. And such a resolution as 1920x1080 will be needed for you to watch the broadcasts in digital format.

A very important factor when choosing a LCD TV is the viewing angle of the screen. The fact is that if you look at the screenTV slightly to the side of the center, you will notice that the colors will change, and the contrast will fall. Therefore, the minimum viewing angle of the TV screen should be 160 °, and in modern models - not less than 170-178 °.

Comparing different LCD TVs and choosing what is best, be sure to pay attention to the response time of liquid crystals. To change the color of the crystal in the screenit is necessary to turn over. The time for which it will turn over will be considered the response time of the crystal. This factor directly affects the quality of the image. The faster the response time, the better the image will be. For modern LCD TVs, the response time should not be more than 8 ms.

Before choosing an LCD TV in the store, pay attention to the contrast and brightness of the screen. Both of these parameters should be sufficienthigh, and there are a number of reasons for this. If the image contrast is low, you will not be able to see the rich color scheme of the picture. And if the brightness of the screen is low, you can not watch TV when the light is on or during the day. Therefore, the contrast of the screen should be at least 800: 1, and the brightness - 450 cd / m².

Choosing this or that LCD TV, pay attention to the color gamut of the picture. Look at the screens of severalenabled TVs, and you will see that the color of the image is different. This is due to the fact that the eastern producers (Sony, Samsung and Toshiba) are trying to make the image as saturated as possible. Therefore, the image on such TVs will be very bright. And Western producers are eager for natural warm and natural tones.

At TVs with a small screen diagonal it is impossible to achieve good stereo sound. This is due to the fact that the speakers shouldbe at a sufficient distance from each other. And at small sizes it is impossible. It is also very important to pay attention to resonance or distortion of sound. To do this, turn on the TV at full volume. The body of the TV should not affect the sound quality.

Modern models have additionalfunctions that allow you to geometrically adjust the screen, brightness, contrast, sound, color saturation of the picture and other numerous parameters of the TV. Naturally, additional certain functions will affect the price of the TV.