Advertisers and agencies are focusing more on the exposure effect of internet display advertising than CTR. In order to demonstrate the exposure effect of Internet display advertising, this study examined the communication effectives between unexposed group and exposed group through the actual Internet display advertising campaign. The actual enacted three campaigns of film industry from April 2010 to July 2010 had been under investigation. Technical indicators are produced through the ad server, and indicators such as display ad weight and date issued unique ID are applied to clearly define exposed group. Independent variable in this study was whether the advertising is exposed or not, whereas dependent variables are advertising recognition, ad preference and willing to watch a movie. 　The results show that exposure of a display ad was more effective in terms of recognition, preference and inclination than non-exposed group. In this study, the research has improved the limits from previous study by examining the actual enacted campaigns. In addition, this study represents much to the industry in that it proposes the direction to practically measure the advertising exposure of the Internet media.