| 摘要 |
<p>A vertical sync signal and a back porch period following the vertical sync signal are detected by a back porch period detecting circuit (31). A display period setting circuit (32) sets the effective display period on the basis of the back porch period. A display drive means display-drives the plasma display on the basis of the display period, thereby enabling driving a plasma display at a display timing of a CRT display.</p> |
