TV – an old inhabitant of our homes. He, like a refrigerator, has jokingly referred to as “member of the family.”
Without it difficult to imagine a cozy evening or light output. Before you buy a TV, you need to familiarize yourself with the types. Each type has its advantages and disadvantages. The main types of televisions are divided into:
• CRT. This model is familiar from childhood, she has a cathode-ray tube. Advantages of this type are as good color rendering, long life and low cost. The disadvantages include the large size, the size limit of the diagonal and the impact of electromagnetic fields on the image.
• LCD. Here the image is transmitted by pixels. He has a high screen resolution, picture clarity, compactness, low power consumption and high safety for the eyes. But it is more expensive than CRT, and it affects the quality of the image viewing angle.
• Plasma. of your TV screen is made up of cells with the gas, which is converted into plasma and passes the desired color. In PDPs excellent color rendition, rich picture, no flicker, it can be viewed from any angle. But they burn cells may occur, plasma consumes a lot of energy and is quite expensive.
• Projection. TVs of this type consist of a device capable of producing high-precision image and transmit it via the optical system to the big screen. These TVs can be CRT, LCD matrices on micromirrors. Each species has its own characteristics and features.
TV Diagonal
This rate influences the comfort when viewing. TV size is measured in inches, 1 inch equals 2.54 cm. Current models of television sets have a diagonal of 22 to 70 inches, which is equal to 60 and 178 cm. If you select the diagonal should take into account such nuances as the picture resolution and viewing distance. It is important to understand that the TV – this is not a laptop, it is not necessary to resort to buying too small models, because first and foremost it is designed for fun, not work.
The contrast and brightness of the TV
Contrast is the TV brightness difference between one and the other portion (pixel) of the screen. The larger the value, the greater the intensity of color and clarity. The standard is written as 1000: 1. Therefore it is very important to check when buying the option and look at its value. Brightness is also equally important. All modern TVs have a high enough level of this indicator. However, LCD and LED screens in this matter one step higher than plasma models. No more than it is worth mentioning that this setting can always be configured with the remote.
Screen Resolution
The screen resolution affects image quality. Support HDTV high quality of resolution of 1920×1080 (it is called Full HD). If your TV is not designed for viewing digital, the value of his permission does not matter. Russia made the transition to digital television in the past year.
Other important characteristics
For the purchase of the TV can also affect:
• The viewing angle. This value represents the maximum value of the angle to the plane of the screen, which allows the image to be seen without interference and distortion. Most current models have an angle of 170 degrees.
• Response Time. This is the time during which the TV matrix element moves from one state to another. The figure of 8-10 ms will be the most optimal.
• Joints. The TV must have the connectors: HDMI, SCART, DVI, VGA, HDMI, HDM, RCA, USB.
So, buying a simple thing like turning into quite an objective and sensible approach. Our modern house equipped with weighing equipment, for sure each family member has a personal computer, tablet, smartphone and many other gadgets, but to combine family watching your favorite films and programs can only be plain old TV friend.
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