LCD integrated how to buy something cheap and cheap
1, screen size, when buying a liquid crystal display, the first consideration is the "face" size. For liquid crystal displays, the panel
The size is the size of the visible area, which has 5 color reproduction capabilities with CRT monitors, different eye habits for each person, and
The purpose of the user's use is different, which also determines the size of the screen of the selected monitor is not the same.
2, response time, response time determines the number of frames per second that the display can display, usually when the display speed exceeds 25 frames per second,
The human eye regards the fast-changing picture as a continuous picture.
3, brightness / contrast, the higher the brightness of the LCD display, the more vivid the color of the display, the better the actual effect. LCD display
The unit of the brightness is cd/m2 (lumen), and the brightness of the ordinary liquid crystal display is 250 cd/m2. If the brightness is too low, the displayed color will
It’s dark, and it’s very tired when you look at it for a long time.
4, viewing angle, the light of the liquid crystal display is projected forward through the liquid crystal at a nearly vertical angle, so we observe the screen from other angles
At the time of the curtain, it will not be as clear as watching a CRT monitor, but will see obvious color distortion. This is the viewing angle size
Caused by
5, color reproduction capabilities, if the color requirements of the liquid crystal display is more stringent, with 16.7M products is the best choice.
6 panel, the physical pixel that cannot be repaired on the LCD panel is a bad point, and the bad point is divided into two kinds of bright point and dark point. Highlights refer to the screen display
A pixel that still emits light when black, and a dark dot refers to a pixel that does not display color.
For LCD monitors, even if you choose a big brand of products, there may be some unsatisfactory situations. Consumer must
You have to try the display equipment yourself to decide whether to buy it. Do your homework before you buy, and bring the software that tests the performance of your monitor to full.
And master the tips of several tests. After disassembling the outer packaging of the monitor, carefully check for scratches or traces of use.
Once problems are found, they should be replaced immediately. Don't forget to let the merchants issue valid proof of purchase, and the "no highlights" promised by the manufacturer,
"No bad points", as well as after-sales terms and other detailed endorsements on the warranty card, and stamped with the official seal of the business, so that you can do nothing
Lost. Even if something goes wrong in the future, it will be easier to solve it.
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