In the vigorous development of the advertising industry today, China's public service ads has also begun to enter a new stage of development, China has the unique phenomenon of public service ads - the commercialization of public service ads and commercial advertising the public welfare, public service ads mechanism is missing This phenomenon of the specific reasons. This article is from this perspective to examine China's development of the public service ads.In this paper, the concept of public service ads with the characteristics of carding, and from a historical perspective of China's public service ads studied the historical evolution and development trajectory.This paper analyses the mechanisms of China's public service ads and the reasons for the lack of impact on the development of public service ads and public service ads for companies to define the concept,Finally, the United States, Japan's public service ads mechanism for a brief exposition, with a view to China's public service ads on the mechanism to establish reference. |