| 摘要 |
A display driving circuit for driving a liquid crystal display panel (10) provided with CS bus lines (15) includes a shift register (gate line driving circuit (30)) including a plurality of shift register circuits SR provided in such a way as to correspond to a plurality of gate lines (12), respectively, the display driving circuit having latch circuits (CSL) provided in such a way as to correspond one-by-one to the shift register circuits (SR), a polarity signal (CMI) being inputted to the latch circuits (CSL). When a internal signal (Mn) generated by a shift register circuit (SRn) becomes active, a latch circuit (CSLn) corresponding to this shift register circuit loads and retains the polarity signal (CMI), and an output (CSOUTn) from the latch circuit (CSLn) is supplied to a CS bus line as a CS signal. The internal signal (Mn) that is generated by the shift register circuit (SRn) becomes active before a first vertical scanning period of a display picture. Therefore, the quality of a display at the time of turning on of power can be improved without an increase in circuit area. |
