Can windows screensaver protect personal privacy?

Screen saver is to prevent the screen from remaining static for too long. The color at a certain point must keep changing, otherwise it will easily cause the screen to change. The fluorescent material ages and shortens the life of the display. (Recommended Learning: PHPSTORM )

## This is actually not very effective in screen protection. If you do n’t need a computer for a long time, you need the host to be in the run. It is wise to turn it off. Turning on the screen saver will increase the unnecessary working time of the monitor and accelerate the aging of the picture tube.

The working principles of LCD and CRT are completely different. Since the lamp is used inside, it is not suitable to leave it on for a long time. It is recommended that LCD users turn off the screen saver function. In a word, screensavers have no protective effect on LCD monitors.

When using desktop computers, many people like to use screensavers. When they switch to using laptops, this good habit is also retained, but they do not know that screensavers are not only important to laptops. There is no benefit, but it will also cause some negative effects.

In fact, the screen saver only protects CRT monitors using graphical interface operating systems (such as Windows). However, since the working principles of the LCD display and CRT monitor used in laptops are different, so Screen savers often do little more than help.

The effect of screen saver on the monitor

The imaging principle of CRT (cathode ray picture tube) monitor is mainly to heat the cathode by the filament, the cathode emits electrons, and then in the accelerating electric field Under the action of the focusing pole, the electron beam is concentrated into a very thin beam. Under the action of the high voltage of the anode, it obtains huge energy and bombards the phosphor layer at an extremely high speed. The targets of these electron beam bombardments are the three primary colors on the fluorescent screen.

For this reason, the electron beam emitted by the electron gun is not one beam, but three beams. They are controlled by the three primary color video signal voltages of R, G, and B of the computer graphics card to bombard their respective phosphor units. This results in a complete image being displayed on the display.

Because more screen saver producers pay too much attention to the expressiveness of images and color changes, they have completely produced screensavers as animations. Some are even 3D real-time processing animations, which also require Coordinated processing with graphics processor.

Therefore, many exquisite and bulky screen savers came into being. Although such screensavers can provide visual enjoyment to viewers, at this time, they have become a problem for the hardware in the computer. Cumbersome, this is a serious departure from the original design intention of the screen saver to rest the computer hardware.

Due to the need to cope with constantly changing screensavers with rich color details, the workload on the CPU, hard drive and graphics card may be higher than usual for ordinary applications. For notebook computers that sometimes use battery power Said, this time such a screen saver has undoubtedly become a power killer.

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