Zhengzhou fashion crystal mosaic manufacturers, Henan, 42-inch LCD splicing screen LCD stitching along the mall more flourishing big screen accompanied competition will become more encouragement. In this mall continued to add, cake bigger and bigger with access to the company is constantly adding to this job. During this period, not only the traditional stitching large screen companies, some of the traditional television flashed manufacturers are now entering into this job to be able to win a cake waiting. To add the machine itself standby time and enhance LCD flashed a drive talent, LCD manufacturers have developed can be satisfied with the low voltage and low frequency conditions using a low threshold voltage of the liquid crystal. It has the following features: time low threshold voltage of liquid crystal monomer with polar groups in the monomer without polar groups appear homosexual representation isomer chromatography conditions under standing shorter. More monomer component with a polar group, also means more liquid water molecules as well as a brief liaison with other free ion polarity, then reduce the liquid crystal capacitance resistance and resulting increase in leakage current and power consumption great. When the molecular chain polar liquid crystal monomer after UV intensified briefly polar molecular groups constituting the neutral molecules surround each other, to become a non-smectic wrong circumstances, and therefore constitutes a threshold voltage increases, the anchor of the guide layer fixed effect insensitive, low-voltage drive lost talent. TN liquid crystal molecules are usually shorter chains, characteristic parameter adjustment more difficult, so the feature is not the same contrast is obvious. STN LCD STN flashed through the data model to calculate the length of the liquid crystal molecules, electrical and optical properties of the required parameters, and the chemical composition of a variety of molecular chain structure similar monomers having polar molecular groups are not the same, the allocation to each other a feature similar series of LCD. Not the same series of the STN liquid crystal generally has a completely different molecular chains, therefore, not the same series of the STN liquid crystal unless the manufacturer can be assigned to each other outside forth, can not be assigned to each other. With respect to the use of life expectancy DLP and PDP, LCD is very long, and lower power, less heat, the failure rate is very low. PDP plasma prone plasma traces its dynamic flash may reach several tens of thousands of hours of life, but in the high brightness flashed a static image, then perhaps there will be five thousand hours of screen burn; and DLP bulb life expectancy is only three 1000-5000 hours, 24 hours is required to use a series of security monitoring large-screen mosaic wall of choice, should be considered to select the LCD mosaic wall, the use of power to the road, to reduce the use of capital and maintenance costs. DID flash technology is a new technology, with high brightness, high contrast, high color saturation, high color uniformity and longevity count, even without fault characteristics such short time, when there are many occasions to use, has a very good visual effects. Also has a flash of clarity, a larger viewing area, the proportion of adjustable flash, bright and colorful thin body, the use of long life expectancy. Most of the former are single DID flash screen using the method, followed by science and technology to expand and travels to the then flashed DID narrow mosaic screen can now use (≤24mm), and can be an excellent flash effect. DID splicing use because thinner body, can save users a greater use of space, but also simple easy splicing combinations, using the DID mosaic wall can be said to be less funding to get excellent flash effects and high cost. Mall security needs grow, LCD Video commodity concern. Originally, mall security has been reflected in all areas of our country. For example, the command of the middle of the fire PR system, business information logistics company in the middle of transaction scheduling, directing large-scale performance meetings and harmony, radio and television show. Followed by the construction industry information technology continues to develop, the user needs for security monitoring also will exuberant, meanwhile, have to provide a set of information technology business solutions for the field of security users even more critical.