The three stages of the development of LED display screen and its application

Before 1990 LED display of the growth period. On the one hand, by the limitations of LED devices, LED display applications are not widely deployed, on the other hand, the display control technology is basically a communication control mode, objectively affect the display effect. During this period, the LED display is widely used in foreign countries, the country is very small, the main products are red and green, the control mode for communication control, gray level for a single point 4 gray, the cost of the product is relatively high.

1990-1995, this stage is the rapid development of LED display period. Into 90s, the rapid growth of the global information industry, information technology breakthroughs in various fields, LED display in the LED materials and control technology has also been the emergence of new results. The successful development of blue chip LED full color LED display to enter the market; the technology development of computer and microelectronics technology, in the field of display control video display control technology, realize the gray scale gray level 16 and 64 level gray gray matching, dynamic display effect is greatly improved. In this stage, the LED display in China is developing very fast, from several enterprises, the initial annual output value of tens of millions of dollars to the development of dozens of enterprises, the annual output value of hundreds of millions of yuan, product application areas including financial securities, sports, airport, railway station, highway, transportation, commercial, postal and telecommunications and other fields, especially is the development of securities industry in 1993 triggered a substantial increase of LED display market. LED display in the field of flat panel display mainstream product situation basically formed, LED display industry has become a new high-tech industry.

Since 1995, the development of LED display into a steady improvement in the overall industrial structure adjustment and improvement of the period. At the same time, LED display industry competition intensifies, the formation of many small and medium-sized enterprises, product prices fell sharply, the application field is more and more widely, the product has a series of new problems in terms of quality and standardization, the relevant departments attach importance to the development of LED display and the standard and guide the appropriate. The work is gradually deepening. After several years of development, China's LED display industry has basically formed a number of key enterprises with a certain scale. According to incomplete statistics, by the end of 1998, the total annual sales of more than 10 million yuan in the enterprise has more than and 20, the total sales of about $600 million, accounting for more than 85% of the total market. The country engaged in LED display all kinds of enterprises have more than 100, employing nearly 6000 people, the total annual sales of nearly 800 million yuan, in 1996 1997, the growth rate remained around 40%, a slight decline in 1998. In the domestic market, domestic LED display market share of nearly 100%, basically no market of similar products abroad, the forty-three World Championships in Tianjin Sports Center, the main venue of the Beijing Kowloon Railway, Beijing West Railway Station, the capital airport, Pudong airport and so on, are winning by domestic representative enterprises. Relatively advanced technology standards.

The application of LED display involves many fields of social economy, including:

Securities trading and financial information display. LED display in this field accounted for more than 50% years ago, the domestic demand for LED display, is still the main demand for LED display industry. Shanghai stock exchange, the Shenzhen stock exchange and the country's tens of thousands of securities, financial institutions widely used LED display.

Airport flight dynamic information display. Civil aviation airport construction of information display requirements is very clear, LED display is the flight information display system FIDS (FlightinformationDisplaysystem) of the preferred products, capital airport, Shanghai Pudong International Airport, Haikou Meilan Airport, Zhuhai airport, Xiamen airport, Shenzhen Huangtian airport, Guangzhou Baiyun Airport and the dozens of new construction and renovation and expansion of the airport are selected domestic LED display products.

Port and station passenger information display. With LED display as the main body of the information system and broadcasting system, train ticket information system, to the development of the system is composed of automatic system of passenger transport hub, the Beijing Railway Station, Beijing West Railway Station, NanChang Railway Station, Dalian Port and other domestic important train station and port are equipped with domestic manufacturers to provide products and systems.

Stadium information display. The LED display has been replaced by a light bulb and a traditional CRT display, the forty-three world main venue in Tianjin Sports Center for the first time to use domestic color video display LED, was generally praised, the main means of Shanghai Sports Center, Dalian stadium and many other important domestic stadiums have adopted the LED display screen as a display of information.

Road traffic information display. The rise of intelligent transportation system (ITS), in the field of urban traffic, highways and other fields, LED display as a variable intelligence board, speed limit signs, etc., to replace foreign similar products, has been widely used.

Dispatching command center information display. Power dispatching, vehicle dynamic tracking, vehicle scheduling management, etc., are gradually using high-density LED display.

Postal, telecommunications, shopping malls and other services in the field of business promotion and information display. All over the country in the field of domestic service LED display in the information display role.

Advertising media new products. In addition to a single large indoor and outdoor display as an advertising media, the cluster LED display advertising system some domestic city; train LED display advertising system in the country has dozens of passenger trains on the use and is being promoted.