Today I want to let you know about LCD TV.
1. What is a liquid crystal? Liquid crystal is a polymer material extracted from plants. Because of its special physical and chemical optical properties, people know that the state of matter is gas and liquid, so plasma and liquid crystal are unfamiliar. Liquid crystal is produced only when the molecular combination with special shape can flow and has the optical properties of crystallization. That is to say, the combination of liquid and crystal is called liquid crystal, which is collectively called LCD.
2. What are the LCD factories?
At present, the main LCD manufacturers in the world are Sharp, AUO Optoelectronics and Fuji.
Tong, Hitachi, Samsung, LG, Chi Mei.
Third, the classification and characteristics of liquid crystals.
There are many LCDs on the market, including hard screen and soft screen LCD soft screen manufacturer, Sharp? Samsung? Chimei? Does AUO photoelectric hard screen manufacturer have LG? Hitachi?
The soft screen is called VA screen. VA screen can be divided into CPA, PVA produced by Sharp, and VA Chimei Judas produced by Samsung (VA is short for horizontal display technology).
Hard screen is called IPS IPS, which is divided into (S-IPS)LG production (AS-IPS)LG production (IPS) Hitachi production IPS is the abbreviation of vertical display technology.
At present, all the seventh-generation LCD panels adopt PVA technology, which is characterized by high brightness and strong color reproduction ability. SPVA technology can achieve 8MS response time, high contrast and low level.
The characteristic of IPS technology is that it can achieve the widest and uniform field effect, but it has high requirements for backlight, low driving power supply for screen, good power saving effect, 2MS response time, good stereoscopic effect and no harm to eyes.
The fourth LCD is different from LED.
Now many manufacturers have introduced LCD TVs and LED TVs, so many customers don't know what products to choose and what's the difference.
Nowadays, LCD TV means that CCFL cold cathode tube is used as the backlight behind LCD, and the brightness of the tube is limited, so the color of LCD TV is poor, but the color is natural.
LED TV is not the LED screen that many people say, but the LCD screen. Only the CCFL cold cathode tube is replaced by LED, which makes the fuselage thinner and brighter, and the color expression is stronger, but the black expression is poor.
Customers who choose LCD TV generally pursue low prices, while customers who choose LED generally pursue high-end customers.
Fifth, the difference between domestic brands and imported brands.
Generally speaking, domestic products have the advantages of diversified products and complete functions, but there are great differences in the choice of TV materials. Now many domestic brands adopt the screen 70.
More than% of them are VA screens and Samsung screens produced in Taiwan Province Province, and very few of them use Korean LG screens. Because IPS hard screen has the cost of patent fees, the cost is high. Nowadays, domestic brands on the market are pursuing functions and giving up the image quality of products.
There are also imported brands such as Samsung? LG Sharp's three products all use their own LCD screens. Many customers say that the high price of imported brands is due to the technical cost of R&D and production, so the price is higher, and these three products are all pursuing screen performance technology, and their functions are not as good as domestic brands, so high-end customers still like the visual impact brought by imported brands.
Six, how to choose the size of the LCD TV is generally three times the diagonal of the TV screen you choose, so that you can know how big TV you should choose, such as:
40 inches 2.6m-3m visual distance
42 inches 2.6-3.8 visual distance
46 inches 3.5m-4m visual distance
47 inches, 3.5m-4.8m sight distance.
55 inches, 4.8m-5.6m sight distance.
Too much choice will make you dizzy, so the bigger the LCD TV, the better.
To sum up, if you want to recommend LCD products selectively, you should first know the size of LCD because of the visible distance of the customer's living room or bedroom, and then recommend the performance and function. It is best to recommend performance, because TV is used to watch TV, not to play functions. I think everyone already knows which LCD has better performance, and it must be IPS hard screen TV produced by LG.