DirectFB全名是Direct Frame Buffer。DirectFB是德國Convergence公司推動的開放原始碼計劃，是GNU/Linux作業系統上的函式庫，提供硬件圖形加速（hardware graphics acceleration）與translucent windows等功能。特許方式為GNU較寬鬆公共許可證。
2006年版的DirectFB擁有CE Linux Forum的音效/影像圖形規格V2（Audio/Video Graphics Specification V2）. [2]
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