Protective film on computer screen
No principle, just to prevent border scratches or dirty, since it affects your normal use, take it off. PET is milky white or light yellow, highly crystalline polymer with a smooth and lustrous surface. Has excellent physical and mechanical properties in a wide temperature range, long-term use temperature is 120 degrees centigrade, excellent electrical insulation, even under high temperature and high frequency, the electric performance is still good, but poor corona resistance, creep resistance, fatigue resistance, wear resistance, good dimensional stability. It does not have radiation protection function at all.
And before the CRT's radiation, because the CRT display is using a kinescope electron gun using high-speed electron emission, through vertical and horizontal deflection coil control deflection angle of high-speed electron, phosphor screen of the high-speed electronic strike finally make the light, resulting in images.If you want to protect your eyes, try to use the computer as little as possible. When you use it, keep your eyes away from the screen.
This film is mainly used to screen new anti scratch, no radiation, radiation and CRT display problems only before (like an old TV like the kind of big) is more serious, the LCD display is placed between the liquid crystal is two pieces of conductive glass, driven by the electric field between the two electrodes, twist the liquid crystal molecules the electric field effect of columns, in order to control the light transmission or shadowing function between the switching power supply to produce light and image is displayed, if coupled with rosy clouds can display the color filter, color image, basically there is no radiation
The protective film on the brain screen does not reduce radiation effects, and the effect is only to prevent scratches on the screen and to avoid the direct contamination of the dust by the LCD screen.Therefore, in addition to the LCD touch screen, the screen protective film is attached to generally make an unnecessary move.
