LCD je ravan i ultra{0}}tanak uređaj za ekran, koji se sastoji od određenog broja piksela u boji ili crno-bijelih, postavljenih ispred izvora svjetlosti ili refleksije. Displeji s tekućim kristalima imaju vrlo nisku potrošnju energije, tako da su jako omiljeni od strane inženjera i pogodni su za elektronske uređaje koji koriste baterije. Njegov glavni princip je da stimuliše molekule tečnih kristala da proizvode tačke, linije i površine pomoću cevi za pozadinsko osvetljenje kako bi se formirala slika. Dakle, koje su tehničke prednosti LCD ekrana? Urednik Zhilingxin će vas predstaviti.
Technical advantages of LCD screens:
1. Smaller size and lighter weight
The traditional CRT monitor uses the picture tube technology to image, it needs to have a built-in vacuum picture tube, and then equipped with an electron gun at the end, so that the length is generally more than 30 cm, so the volume of the whole display is of course larger. The liquid crystal display uses liquid crystal materials, and then uses the corresponding imaging technology to achieve the display purpose. There is no need to install a picture tube inside the display, and the volume is of course small.
2, the relative display area is larger
Due to the limitation of display technology, traditional CRT monitors indicate a size smaller than the display area of the fluorescent screen. Generally, a 15-inch CRT monitor has a size of 15 inches, but its real visual range It may be only about 14.1 inches, and the 17-inch display may only have 15 to 16 inches of display area left. However, due to the different imaging principles of liquid crystal displays, the size indicated is the actual display area. For example, the display area of Samsung's 15-inch LCD is a complete 15-inch, which is equivalent to the display area of a 17-inch CRT monitor. , If the prices of the two are similar, of course it is much more cost-effective to buy an LCD monitor.
LCD
3, zero radiation, no flicker
CRT monitori koriste katodne slikovne cijevi za snimanje. Elektronski snop koji se nalazi u njemu stvara mnogo statičkog elektriciteta i zračenja tokom rada. Što je veća brzina elektronskog snopa, to je veće zračenje. Dugotrajna-upotreba ljudskog tijela će uzrokovati oštećenje očiju i kože. Izaziva miopiju, kožne alergije i druge probleme. Budući da zaslon s tekućim kristalima koristi materijale od tekućih kristala, nema potrebe za korištenjem elektronskih zraka prilikom rada, tako da nema statičkog elektriciteta i zračenja koji utiču na vid. Osim toga, skeniranjem se formira slika CRT ekrana. Samo kada frekvencija skeniranja dostigne određenu vrijednost, nema treperenja. Međutim, zaslon s tekućim kristalima ne zahtijeva proces skeniranja. Slika se formira gotovo u isto vrijeme, čak i ako je frekvencija osvježavanja vrlo niska i neće biti treperenja.
4, low power consumption, strong anti-interference ability
In addition to the power consumption of the circuit and the picture tube, the CRT display also has the power consumption of the display screen, and the liquid crystal display is mainly the power consumption of the backlight and the circuit, and the power consumption of the display screen can be ignored. In addition, because the liquid crystal display does not use a picture tube and an electron gun like a CRT display, it does not need to consider the high radiation effect caused by increasing the electron beam emission from the electron gun, but only obtains the brightness through the backlight emitted by the fluorescent tube, so it has stronger resistance. Interference ability, even in an environment with relatively concentrated light, you will receive a good display effect.
5, the picture quality is higher
Tradicionalni CRT monitori uglavnom usvajaju analogni način prikaza, a izlazni signal ekrana usvaja analogni izlazni način, što može uzrokovati gubitak slike tokom procesa prijenosa, što rezultira opadanjem kvaliteta slike, dok prijenos signala displeja s tekućim kristalima usvaja digitalni način rada. , koji je direktno uz grafičku karticu. Izlaz digitalnih signala neće uzrokovati gubitak signala, ali većina LCD ekrana i dalje koristi VGA interfejse za analogne ekrane, a samo nekoliko proizvođača je postavilo interfejse za digitalni video signal.
6, the use of functions is more intelligent
Because of the different materials and technologies used in liquid crystal displays, some of its parameters are generally relatively fixed, which requires the performance of the display to be adjusted more intelligently. In this regard, each manufacturer has its own mature technology.
7. A leap in applied materials
The traditional CRT monitor uses an ultra-thick glass display. Although the outer surface is flat like a liquid crystal display, the inner surface is somewhat curved, which seems to be concave, and the image will be slightly distorted. The basic material used in liquid crystal displays is liquid crystal-a substance that has both the fluidity of liquid and the regular arrangement of crystals. When the liquid crystal is heated to a certain extent, it will become a transparent liquid. After cooling, it will show the characteristics of crystals. Because the characteristics of liquid crystals are between solid and liquid, it not only has the optical characteristics of solid crystals, but also has the flow characteristics of liquid. The liquid crystal display uses this characteristic to achieve the purpose of imaging.
