| 摘要 |
PROBLEM TO BE SOLVED: To prevent display quality from being deteriorated due to differences in the charging rates of respective pixel forming parts in a liquid crystal display, of which the driving method is an inverted driving method of a plurality of line dots. SOLUTION: A horizontal scanning period correction value setting circuit 4 compares a video signal Da1, indicating the display image of a pixel forming part on a polarity inversion line with a video signal Da2, indicating the display image of a pixel forming part on a succeeding line and generates a signal width correction valueαfor correcting the length of a horizontal scanning period. In this case, the signal width correction valueαis set so that the charging rate of the pixel forming parts is fixed, independently of the difference between the target voltage of a driving video signal when polarity is inverted and the target voltage of the driving video signal, when the polarity is maintained. Then a source output control signal Cs and a gate output control signal Cg are generated, on the basis of the signal width correction valueαand a scanning signal, and a drive video signal are generated on the basis of the source output control signal Cs and the gate output control signal Cg. COPYRIGHT: (C)2005,JPO&NCIPI
|
