| 摘要 |
The invention relates to a fluorescent display module and a driving method, with a view to disclosing a VFD with brightness adjusting function, especially is used for preventing display flicker. A fixed filament driving signal is generated at a difference of the edge position to start timing of a head anode lighting period which is placed at a head of each scan period of a grid in each scan period, and the driving signal drives the filament, thereby preventing the filament driving signal in the anode brightening period (grid signal and anode signal are in the conduction period) differs according to length of H level period in each scan, or even the difference is generated, the difference is regular. As a result, the observed brightness reduction in each scan can be prevented, and display flicker can be prevented. |
