Patent ID: 9653031
Date: 2017-05-16
CPC Classifications: G09G

Claim:
1. A multi-type common voltage driving method, adapted to drive a display, the multi-type driving method comprising: providing a common voltage to a common electrode of the display for a sequence of common voltage switching time units to define a reference voltage of the display, wherein each of the common voltage switching time units has a plurality of different types of common voltage pattern periods, and a time length of each of the common voltage pattern periods comprises at least one frame, wherein the display displays at least one image during the at least one frame, wherein in each of the common voltage pattern periods, the common voltage comprises either alternating current (AC) voltage swings or direct current (DC) voltage level, wherein the common voltage is switched from one of the AC voltage swings and the DC voltage level to another one of the AC voltage swings and the DC voltage level, wherein during the different types of the common voltage pattern periods, the provided common voltage has different AC voltage swings or different DC voltage levels, and wherein in each of the common voltage switching time units, the different types of the common voltage pattern periods comprise: a plurality of DC-type common voltage pattern periods, during which the provided common voltage has different DC voltage levels.