Formation stage: before 1990, mainly concentrated in the application of indoor display, LED indoor display, instrument display and other fields.
Popularization stage: 1990-1995, LED display application rapid development period.
Promotion stage: 1995-2003, the period of overall steady improvement and industrial structure adjustment and improvement.
Innovation stage: from 2003 to 2007, LED product technology has developed in various application fields, forming a diversified broad market, and the related industrial structure has also changed significantly.
Mature and large-scale stage: from 2008 to 2010, LED display application development tends to be mature.

