Method for modulating and driving backlight sources for flat panel displays

Abstract

The present invention provides a method for modulating backlight sources for flat panel displays (FPD), which comprises: lowing steps: step 31: turning on a display screen; step 32: identifying whether the total number of the BLS groups provided on the backlight module is an odd number or an even number; step 33: turning on the one BLS group located at the center-most region of the backlight module while the total number of the BLS groups is an odd number; step 34: turning on one of the two BLS groups located at the center-most region of the screen while the total number of the BLS groups is an even number; step 35: turning on another one of the two center-most BLS groups while turning off the previous turned-on center-most BLS group, and then turning on a BLS group located at the outer side of the turned-off center-most BLS group while turning off another turned-on center-most BLS group, and similarly, by iteratively progressing the turning-on and the turning-off from the center region to the two outer edge of the backlight module so as to complete a full cycle; step 36: determining whether the display screen is off, if so, the process proceeds to step (37); otherwise, the process goes to step (31); and step 37: ending the process.

Dependencies are inferred from the claim text.