How 100 Hz originally worked
A standard PAL television will update the picture 50 times per second or at a rate of 50 Hz. Frames Per Second (FPS) is the number of frames required to create the illusion of movement. Our eyes are often aware of this frequency depending on the frame rate, the intensity of the darkness and the intensity of the brightness, consequently you will occasionally notice image flickering on a 50Hz TV. the screen, the more obvious the flickering.
At 100 FPS (100 Hz), the TV runs at double the frames per second by creating a duplicate of each frame and inserting it after the previous one. On a 50 FPS (50 Hz) Cathode Ray Television (CRT), because the image is created by scanning charged particles, there is a visible flicker that can be seen by the human eye. As a result of doubling the scan rate to 100FPS and inserting a copy frame, this problem is not apparent to the human eye. The result of this is to significantly reduce flicker.
The benefit of 100 Hz in plasma and LCD televisions
Plasma and LCD televisions are flicker-free because they do not generate the image with a scanning electron. However, LCD and plasma televisions still benefit from 100 Herts because advanced digital circuitry creates an additional frame or intermediate image. The TV does this by creating an extra frame through complicated interpolation, as well as motion compensation calculations to calculate how the extra fields and frames look, rather than inserting a copy frame. (for example, the first and second frames are different).
However, even at 100 Hz, the picture still doesn’t produce a completely smooth image, especially with fast-moving images. Various TV manufacturers try to reduce this further by using digital image processing. There is usually still some blurring in fast-moving images, although the benefits are clearer, better-defined surfaces, smoother motion, and sharper images than is possible with 50-inch plasma and LCD televisions. frames per second.
For example, if a soccer ball moves ten pixels from left to right between frames one, two, and three, the 100Hz TV will digitally create two additional frames between one and two, along with two and three, in which the ball will move five pixels. This results in five frames where the ball moves a total of ten pixels, that is, the initial frames one, two, and three plus the digitally created inset frames between one and two, and between two and three. The effect of this is that the eye sees an image that moves more smoothly than before.
The upside is that 100Hz TVs have the distinct advantage of eliminating most of the ghosting that is seen from time to time on LCD TVs. The ghosting effect caused by displaying the next image before the previous one has faded.
Most major manufacturers have 100Hz plasma and LCD TVs, including JVC, Panasonic, Toshiba, Samsung, LG, Sony, Philips, Hitachi, and Pioneer.
More advantages with 200 Hz
Sony has produced a range of 200Hz televisions that digitally insert three extra frames between the original 50Hz frames. Therefore fast moving scenes are seen with a smoother, smoother and sharper picture than 50Hz televisions. Hz or even 100 Hz.
Benefits for people who have photosensitive epilepsy
Research has shown that 100 Hz TVs can help prevent seizures in people with photosensitive epilepsy when they watch TV or play computer games.