Software realization of LED Large Screen Display Offline Control card needs much complex work compared with that of video card.

相对于LED大屏幕显示器视频控制卡，脱机控制卡在软件实现上需要做较多复杂的工作。

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Over the past two years advertising-as-auction has spread out beyond keywords to display advertising, video and mobile making for a far more complex advertising environment where ads are auctioned across these multiple platforms.

FORBES: Ditching the TV Ad and Taking the Google Road to Brand Promotion