China's recent release of strategic emerging industries in the 20 major projects include a new type of flat panel display project, large screen stitching is also one of the "small" industry.
Industry analysis, accompanied by an increase in the field of application demand, different technologies, participate in the accumulation of manufacturers and other factors, the 2011 only 5 billion yuan market size of the large screen mosaic industry quickly grew up, the next two or three years after the market size is expected to surpass 10 billion yuan. The increase in application areas is the primary driver of rapid growth in the industry. China Electronic Video Industry association large screen projection display Equipment branch secretary General Changhanding pointed out that many industries will be used in the future to large screen stitching. It is understood that the large screen splicing originally mainly in the military, government, transportation, electricity and other industries with centralized command, dispatching needs, the product is also based on DLP back projection stitching.
And with the development of "social informationization" and "Smart city", the demand of security, commercial display and other markets is being released rapidly, LCD large screen splicing products ushered in a new growth space. Large screen mosaic products originated in 1992, is the use of DLP splicing wall system. After the emergence of CRT, DPD, LCD large screen mosaic products. DLP backlight source through the metal halogen lamp, ultra-high pressure mercury lamp, xenon lamp, LED light source and other development stage.
At present, the better service life is long, the brightness attenuation is small LED light source, although the use of LED light source DLP price is higher but has a long life advantage. From the stitching effect, "big screen splicing technology" has also experienced three stages of development: hard side stitching, overlapping stitching and soft edge fusion stitching. There are two main types of large screen mosaic technology, one is the traditional large screen display wall struggled technology, the other is the use of Edge Fusion technology projector seamless splicing technology. Large screen seamless splicing system includes image fusion processor, high level projector and display screen, as well as centralized control, signal processing and other high-end equipment, so the cost is higher. Large screen seamless splicing system is currently the main large screen display wall struggled connection system.
