Our display color grayscale and stability has already reached the advanced worldwide standard. As for customers’ requests, we have developed out the PLC（Programmable logic Controller）long-distance power distribution box, which can control displays within the controlling distance range more than 15 km and supervise the power supply condition.. We also added automatical annunciator in the case of high temperature, short circuit or fire. Besides, we adopted touching screnn ( means customers can control the dsiplay by touching displays), which greatly promoted and promptly ensured the safety controlling. We have applied the above instrument in tens of projects and received very good comments from our customers. Recently, PLC (Programmable logic Controller) has been broadly applied into different fields, such as steel industry, petroleum industry, electricity industry, transportation, invironmental and entertainment, etc, different kinds of fields. Therefore, we do not want to drop behind the most advanced scientific tide and also got the chances to reasearch and tried to apply the technology into LED displays. There are a lot of advantages about PLC（Programmable logic Controller）: high reliability and high anti-jamming capability. As we know the high reliability is really a key point for electrical instruments. PLC has adopted a great scale of LSI technologies through strict control of manufacturing. All the interior circuits have adopted LSI technologies, therefore, PLC can ensure the high reliability. Compared with the common instruments, PLC has decreased the quantity of the connectiong cables and switches to one in a thousand, with the lowest malfunction possibility at the same time. Besides PLC has the hardware self-checking functions, in the case of any malfunctions, it can send out timely alarming informations. Customers can also programe and edit the self-checking programmes to enable other parts to get the self-checking functions. Therefore, the whole system can have very high security standards .Our company Skymax Display Technologies Co., Ltd as one of the leaders during technologies and manufacture in Zhongshan city Guangdong Province, has positioned ourselves to the most professional and individualized creative LED display manufacturing field. We sincerely believe that we can satisfy each of our customers’ requests and needs with our constant efforts and creations. Our direction and target is: Skymax can do better than you expected!