| 摘要 |
An apparatus for driving a plasma display panel and a method thereof are provided to extend gray level as displaying a vivid image by extending brightness contrast. A frame memory(42) delays i(i is positive integer) frame data inputted from the external by one frame. A reverse gamma adjustment part(44A,44B) performs reverse gamma correction of the i frame data and the (i-1) frame data supplied from the frame memory. A maximum gray level output part(58) extracts a maximum gray level from data of the i frame supplied from the reverse gamma adjustment part, and outputs a maximum gray level of the (i-1) frame stored in itself. And a gain adjustment part(46) extends gray level of data of the (i-1) frame using the (i-1) frame data and the (i-1) maximum gray level. |
