HORIZONTAL SCANNING METHOD AND HORIZONTAL SCANNING DEVICE FOR ACTIVE MATRIX TYPE LIQUID CRYSTAL DISPLAY DEVICE

摘要

PROBLEM TO BE SOLVED: To reduce power consumption by inputting clocks only when a scan pulse is turned on. ;SOLUTION: In performing a horizontal scanning while inputting a scan pulse ST for sampling data lines corresponding to respective pixels equivalent to one row, a clock cp, and the inverted clock cp for scanning this scan pulse ST to the shift registers 83, 84... for performing samplings for every pexels equivalent to one row, load of clock lines to be driven is reduced by supplying the clock cp and the inverted clock cp to the shift registers to which the scan pulse ST is shifted to be inputted only in a period when the scan pulse ST is inputted and by stopping the input of the clocks in period other than the period.;COPYRIGHT: (C)2000,JPO