| 摘要 |
PURPOSE:To obviate the generation of spurious contours by driving a display device while regularly or randomly changing scanning sequence of sub-fields in a frame unit, thereby preventing prolonging of a non-display period. CONSTITUTION:A sub-address decoder 63 rearranges the illuminance sequence of sub-frames (SF) 1 to SF 8 periodically, for example, by shifting the luminance by each one at every one frame. The data of the video signals inputted from an input terminal 51 is written into a frame memory 58. When the writing of the video signal data for one frame ends, an address decoder 61 of a control section 60 outputs address signals for reading out in accordance with the control signals inputted from a control signal input terminal 52. A sub-address counter 52 counts the respective periods of the SF 1 to SF 8 in the one frame and outputs count signals. The count signals are periodically rearranged by the sub-address counter 63 and are outputted in accordance with the set sequence. |
