Frame Rate and Refresh Rate

The refresh rate is the frame rate per second in which tv is capable of display. 50Hz equals 50 frames per second, 60Hz equals 60 frames per second. This has an influence on the sharpness and fluidity images. It’s notices when a program with “fast” images is watched. For example, if you are viewing a action movie with lots of car stunts or if you are playing a video game. However, it is quite difficult to tell the difference between a 50Hz and 60Hz TV, because the refresh rates are very close.

The difference between a 50Hz and 60Hz TV simply comes from different broadcast standards worldwide. Indeed, in France the standard frame rate for TV broadcasting is 25 frames per second (PAL). However, in the United States (USA) for example, the display frequency is 30 frames per second (NTSC). It is for this reason that there is a difference between 50Hz and 60Hz TVs. The 50 Hertz TV will operate at 50 frames per second (European standard) and the 60 Hertz tv will be at 60 frames per second (American standard).

The TV sets are able to support both 50Hz and 60Hz frequencies. That is to say, if the source (tv decoder, Blue Ray DVD player) sends a video signal at 25 frames / second (European standard), your television screen will broadcast the images at 50 Hertz (50 fps). But if the signal source is 30 frames per second, your TV will broadcast your Programs at 60 Hertz (60 fps). The Low wear de image processing embedded in the 50Hz (60Hz) TVs this will take care of doubling the refresh rate so that your viewing experience be more fluid.

However, it is important to note that the refresh rate of a TV will create its images artificially. In fact, it is not the frequency pictures native. Indeed, using a Low wear image processing, trademarks of tv will increase the melt index.

Let's take an example, if you look at a film since your Blue Ray DVD player on your TV Samsung 100Hz. The standard frame rate for film is 24 frames per second. Your television with a refresh rate of 100 Hertz (100 frames per second) will therefore artificially create and/or insert images extra to make the movie sharper and smoother.

There are several technologies to artificially increase the frame rate of a TV and therefore obtain a higher fluidity index. These technologies of image processing are specific to each TV brand. In effect, Sony, use it Motion flow. Samsung, the Motion Plus. LG le TruMotion. Panasonic le IFC Pro. And each of these technologies works mainly on 3 models:insert images, frame interpolation or the backlight flashing at scanning (set of backlights).

Kaynak:

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