LCD is now used by many users, not only computers, but also televisions, mobile phones, screens and so on. But buying an LCD screen is not very cheap, so how to make it last longer and correct the color is what a computer user wants. What are the specific maintenance precautions?
Liquid crystal display
Like CRT, LCD is easy to catch dust. The LCD is delicate and expensive. Generally, you can't wipe it with a rag. When cleaning the LCD screen of LCD, try not to use wet cloth with too much moisture, so as to avoid water entering the screen and causing faults such as internal short circuit of LCD. It is recommended to wipe the LCD screen with soft objects such as glasses cloth and lens paper, so as to avoid moisture entering the LCD and not scratch the LCD screen. If possible, you can buy a special LCD cleaning kit.
The destructive power of water vapor on LCD screen is amazing! We should use the LCD in a relatively dry environment to prevent moisture from entering the LCD. For some users with humid working environment (pay attention to the humid areas in the South), you can buy some desiccant and put it around to keep the air around the LCD dry. If the water vapor enters the LCD, don't panic. Put the LCD in a warm place, such as under a desk lamp, and gradually evaporate the water inside. Or find a manufacturer to dry.
The structure of LCD is complex. If it is broken, you should not attempt to disassemble or change the LCD display. Even after the LCD is closed for a long time, the CFL converter in the background lighting assembly may still have a high voltage of about 1000V, which will cause harm to human body. Unprofessional maintenance and changes will also cause the display to temporarily or even permanently fail to work. Therefore, if you encounter problems, the best way is to find professionals to repair.
The LCD screen is relatively soft (except for those with protective shell of course) and easy to be damaged. So be careful not to touch the screen with hard objects when using it at ordinary times. The LCD screen may cause irreparable damage after impact.
In the process of violent movement or vibration, it is possible to damage the internal liquid crystal molecules of the display screen, which greatly reduces the display effect. In addition, to avoid strong impact and vibration, LCD contains many glass and sensitive electrical components. Falling on the floor or other similar strong blows will cause damage to the screen or other units. We must pay attention to this in the process of handling, and try to take protective measures before handling.
LCD maintenance is still very important. Master certain computer knowledge related to LCD. LCD is generally unlikely to fail within its service life.
Add: computer practical skills can not be missed
Press and hold the windows + L key to quickly lock the screen, and press and hold the windows + e key to turn on the computer.
Press and hold windows + D to quickly return to the desktop, and press and hold windows + tab to display the switching window.
Press and hold the windows + R key and enter PSR Exe enter and turn on the self-contained video recording function. Press and hold the windows + X key to open the power options, device manager and other function menus.
Press and hold the windows + R key, enter OSK and press enter to open the virtual keyboard. Press and hold the windows and + keys to enlarge the screen.
In the multi tab program, press Ctrl + tab to switch the page, press Ctrl + Shift + tab to switch in reverse, press Ctrl + w to close the current page, press windows + FN + home to open the system properties.
Related reading: computer shortcuts
CTRL + C copy.
CTRL + X cut.
CTRL + V paste.
CTRL + Z undo.
Delete delete.
Shift + delete permanently deletes the selected item without putting it in the recycle bin.
While dragging an item, press Ctrl to copy the selected item.
Press Ctrl + shift while dragging an item to create a shortcut for the selected item.
F2 rename the selected item.
CTRL + right to move the insertion point to the beginning of the next word.
CTRL + left to move the insertion point to the beginning of the previous word.
CTRL + down to move the insertion point to the beginning of the next paragraph.
CTRL + up to move the insertion point to the beginning of the previous paragraph.
CTRL + Shift + any arrow keys highlight a piece of text.
Shift + any arrow keys to select multiple items on the window or desktop, or to select text in the document.
CTRL + a Selects everything.
F3 search for files or folders.
Alt + enter to view the properties of the selected item.
Alt + F4 close the current project or exit the current program.
Alt + enter displays the properties of the selected object.
Alt + spacebar opens the shortcut menu for the current window.
CTRL + F4 closes the current document in a program that allows multiple documents to be opened at the same time.
Alt + Tab toggles between open items.
Alt + ESC cycles through the items in the order they are opened.
F6 cycle through screen elements on the window or desktop.
F4 displays a list of addresses in my computer and windows explorer.
Shift + F10 displays the shortcut menu of the selected item.
Alt + spacebar displays the system menu of the current window.
CTRL + ESC displays the start menu.
Alt + underlined letters in the menu name display the corresponding menu.
The underlined letter in the command name displayed on the open menu executes the corresponding command.
F10 activates the menu bar in the current program.
The right arrow key opens the next menu on the right or opens a submenu.
The left arrow key opens the next menu on the left or closes the submenu.
Refresh the current window F5.
Backspace view folders one level above in my computer or Windows Explorer.
ESC cancels the current task.
When inserting a disc into the CD-ROM drive, press shift to prevent the disc from playing automatically.