Patent ID: 9530376
Filing Date: 2016-12-27
CPC Classification: G09G

Claim Text:
1. A driving method of a liquid crystal display device, the liquid crystal display device comprising a display panel, the method comprising following steps of: S S S wherein the step S comparing a common voltage value and a prescribed reference voltage value at a start point of the prescribed period of time, and generating a first logic value based on the comparison; comparing a common voltage value and a prescribed reference voltage value at an end point of the prescribed period of time, and generating a second logic value based on the comparison; comparing the first logic value and the second logic value, in case that the first logic value is not equal to the second logic value, determining that the variation value of the common voltage is greater than the prescribed threshold voltage variation; in case that the first logic value is equal to the second logic value, determining that the variation value of the common voltage is not greater than the prescribed threshold voltage variation.