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The obvious advantages of liquid crystal display
Relative to the CRT monitor, LCD to overcome the CRT bulky, power consumption and flashing shortcomings, but also brought the cost is too high, the angle is not wide and color display is not ideal and other issues. But technically speaking, the advantages of liquid crystal display is still very obvious, mainly in the following six aspects:
A smaller, lighter weight
Traditional CRT monitors due to the use of CRT technology imaging, the need for built-in vacuum tube, and then with the end of the electron gun, so that the length of the general are more than 30 cm, the size of the entire display of course, even greater. Such as liquid crystal display liquid crystal display, and then use the corresponding imaging technology to achieve the purpose of display, do not have to install the monitor inside the monitor, the volume of course, smaller, like EMC's 15-inch LCD monitor BM-568, the volume is only 19 inches CRT monitor volume Of the half to one third, when placed with greater flexibility, and its small size of course, it also greatly reduced the weight.
two. Relative display area is larger
Traditional CRT monitors are limited by the display technology, which is marked to be smaller than the display area of ??the phosphor screen, typically a 15-inch CRT monitor, although its marked size is 15 inches, but its true visual range Probably only about 14.1 inches, while the 17-inch display may only have its next 15 to 16-inch display area. But the liquid crystal display due to the different principles of the surface, which marked the size of the actual display area, such as Samsung's 15-inch LCD display area is completely 15 inches, equivalent to a 17-inch CRT display Area, such as the price of the two, then, of course, buy a liquid crystal display is much more cost-effective.
three. Zero radiation, no flicker
CRT monitor with cathode cathode ray tube imaging, which contains the electronic beam in the movement will produce a lot of static electricity and radiation, and the electron beam running faster, the greater the radiation, the human body long-term use, will cause damage to the eyes and skin, Causing eye myopia, skin allergies and other issues. The liquid crystal display due to the use of liquid crystal materials, the operation without the use of electronic light beam, so there is no static and radiation effects of these two problems exist. In addition, the formation of a CRT monitor screen is formed by horizontal scanning, only when the scanning frequency reaches a certain value, there is no flicker, and the liquid crystal display does not require any scanning process, a picture is almost simultaneously formed, even if The refresh rate is very low, it will not appear the slightest flicker.
four. Power consumption, anti-interference ability
CRT monitors in addition to the circuit and the development of power consumption, there are display power consumption, while the liquid crystal display is the main backlight and circuit power consumption, the display power consumption is negligible, like EMC's 15-inch display BM- 568, its power consumption is only 35 watts, than the same display area of ??CRT products by nearly 50%. In addition, because the liquid crystal display is not like a CRT monitor as a color tube and electron gun imaging, do not consider because the electron gun to improve the electron beam emitted by the high radiation effects, but only through the fluorescent tube to obtain the brightness of the backlight, so have a stronger Anti-interference ability, even in the relatively concentrated light environment, will also be a good display.
Fives. Picture quality is higher
Traditional CRT display in the use of analog display, display card signal output using analog output, in the transmission process may cause the loss of the image, resulting in the decline in picture quality, and liquid crystal display signal transmission using digital means, By the video card directly input countless word signal, will not cause the loss of the signal, but most of the current LCD display is still used for analog display VGA interface, only a few such as EMC, Samsung, ACER and other manufacturers set up a digital video signal interface.
six. Use the function more intelligent
As the liquid crystal display using the different materials and technology, some of its parameters with the general relatively fixed, which requires the performance of the display more intelligent adjustment, in this regard manufacturers have their own mature technology, in general, There are two main, one is similar to the EMC Auto-set automatic adjustment and the best setting function, as long as one of the parameters to adjust, the other parameters automatically adjusted to the corresponding value, and is the best value to ensure that the display of the Good effect. The other is the use of single-button recovery function, that is, pre-made a key, just a touch, you can change all the parameters back to the factory when the scheduled settings.