Almost all the monitors in the market are made up of several "layers" on the screen: on the one hand they may have an LCD panel or some other graphical technology, but behind it they have an LED backlight that illuminates pixels on the screen, and that is exactly the cause of the scratching that happens on the screen. But before we get into this issue, let's first figure out what the problem is.
What blurts the observers
Blur description (meaning "flicker") "A major change in the intensity of light in shorter time intervals"
In the picture above you can see, on the left, a monitor that shows more than a clear cut, while the right guard does not. Of course you have seen this effect many times when recording a screen with a portable camera, and that since the recording frequency is different from that of the monitor, it is very noticeable.
Why did this happen?
Primarily because of two factors:
- In the image generation itself, because in order to produce a sense of movement in containers, it is necessary to create multiple images every second with small updates between them, in what we know as a level of refreshment.
- With a backlight system, because this monitors a lot with PWM (range rotation) which consists of activating and activating the background light to produce a greater or less amount of light.
This last effect feels like an old cinema film, in which the payers had to light and turn to move from one image to another using reels of tape. It seems unbelievable, but even though this now happens several times per second in standard monitors, the effect of the driving light switch is from there.
Why should you care to blur your track?
Clicking, or blinking the screen, can cause harmful effects on physical health such as eye fatigue, headache, irritability, and back pain. Don't be afraid because though, yes, the symptoms don't start to appear because, but after being exposed for a long time and for many days in a row go to the screens.
It is recommended, and especially if you are PC users who spend hours in front of a screen, invest your money in flicker-free monitoring, which avoids this blur.
