Introduction to 50hz home theatre systems
A standard PAL hdtv will refresh the picture in the frequency of 50Hz or 50 Frames per second (FPS). The Frames Per Second are how many frames needed to set up the illusion of motion. On a 50Hz Cathode Ray Television (CRT), because the picture was created by an electron scan, there was a visible flicker that may be detected by the human eye.
The Human eye is in occasionally sensitive to this frequency with respect to the intensity of darkness, the speed from the image, and the a higher level brightness thus you will occasionally notice the picture flicker on the 50Hz TV. The flicker becomes more apparent at larger screen.
How 100 hertz accustomed to work
A 100 FPS (100Hz) video operates at twice the Frequency by developing a copy of each style and putting it following on from the one before. As as a result of doubling the scan occurrence to 100Hz and putting a duplicate frame the effect is eliminated, so far as the eye is nervous. The consequence of this is certainly to drastically lower this flicker.
Does 100hz enhance the picture on 100hz Plasma and also LCD televisions?
Plasma and LCD tv sets dont produce flicker since they dont generate the picture using a scan. LCD TVs still take advantage of 100FPS because sophisticated digital circuitry creates yet another frame or middle look. This is done from the TV creating an extra frame by way of complex motion compensation along with interpolation calculations to calculate what the fields and frames look like rather than inserting some duplicate frame. (i. at the. the first and next frames are different).
However even at 100 FPS the picture still doesn't deliver a entirely consistent picture particularly with speedy motion images. Some television manufactures make an effort to reduce this further by using digital picture processing. Typically there's still a little blurring on quick moving images although the benefits are clearer plus better-defined surfaces, sharper images, and smoother movement than is achievable from 50 Frames per second Plasma and LCD television.
i. e. if a football proceeds ten pixels from to left between frames a particular, two and three, the 100 Frames per second television will digitally establish two added frames concerning one and two, together with two and three, where the ball will travel several pixels. This therefore results inside of a total of five frames where the ball moves a whole of ten pixels we. e. the original supports one, two and three as well as the digitally created frames which can be inserted in between an individual and two, and among two and three. The eye thus sees a envision that moves more fluidly in comparison with before.
100hz improves the particular picture
The benefit is that 100Hz televisions have got a clear benefit of ending many of the ghosting effects sometimes observed in LCD TV's. The ghosting effect brought on by the new image being displayed ahead of previous has faded at bay. The created middle framework also benefits the Plasma television picture by make typically the picture more fluid plus natural.
Manufacturers such seeing that JVC, Panasonic, Samsung, Toshiba, LG, Sony, Philips, Hitachi and Pioneer have 100 hertz Plasma in addition to LCD televisions.
200hz the following generation
A range of 200hz TVs are produced by Sony which unfortunately digitally inserts three further frames concerning the original 50Hz frames. Hence speedy moving sequences are delivered having a more fluid, sharper and smoother photo than 50 hertz as well as 100 hertz TVs.
Extra benefit for photosensitive epilepsy individuals
Research has proven that 100 hertz televisions will help in preventing seizures in those who suffer with photosensitive epilepsies if viewing television or playing on-line games.
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Sat Sep 24, 2011 3:25 pm