| 摘要 |
<p>A scan-type display device control circuit (10) is suitable for receiving successive frame data and driving a light-emitting diode (LED) display device (90) accordingly. The scan-type display device control circuit (10) includes a ping-pong buffer (11), a data storage controller (20), a line scan controller (30), a display buffer (50), and a scrambled pulse width modulation (PMW) signal generating device (60). The scan-type display device control circuit (10) can utilize frame data circularly and repeatedly, so as to prevent a great mass of data from being transmitted repeatedly. Therefore, a band width for inputting data can be reduced significantly. Furthermore, the scrambled PMW signal generating device (60) can scramble a PMW signal with a long period into a plurality of scrambled PMW signals with a short period. Therefore, the refresh rate can be efficiently enhanced without changing the band width for inputting data.</p> |
