METHOD FOR CONTROLLING A BACKLIGHT OF A DISPLAY PANEL

摘要

The present invention relates to a method for controlling a backlight (102) of a display panel (101), comprising generating a control signal (107) with a primary pulse arrangement (200) and a secondary pulse arrangement (201; 401; 402) per frame, and activating said backlight in accordance with said control signal. The control signal is chosen such that the first harmonic (301) of the secondary pulse arrangement essentially cancels out the first harmonic (300) of the primary pulse arrangement, and the primary and secondary pulse arrangements have different shapes. By thus activating the backlight two times per frame, there will be a reduction of flickering as compared to typical backlighting methods, while at the same time it is possible to reduce motion blur artifacts, such as for example in the form of ghost images. The present invention also relates to a display unit comprising means for performing such a method.