Patent ID: 7705808

Claim:
A driving apparatus for an electron emission display, comprising: a controller for comparing a first external video data input signal to a second external video data input signal, the first and second video data input signals corresponding to sequential first and second lines, the controller switching a polarity control signal in a predetermined manner on the basis of the comparison and controlling inversion of video data in accordance with the polarity control signal; and a data driver for modulating a driver output in accordance with a video data output signal, the video data output signal being output from the controller, wherein: a polarity of the polarity control signal is changed from a first polarity to a second polarity, and then the polarity of the polarity control signal is changed from the second polarity to the first polarity, a duration of the polarity control signal at the first polarity is increased when the first and second video data input signals have a same first value relative to the duration of the polarity control signal at the first polarity when the first and second video data input signals do not have the same first value, a duration of the polarity control signal at the second polarity is increased when the first and second video data input signals have a same second value relative to the duration of the polarity control signal at the second polarity when the first and second video data input signals do not have the same second value, and the first value is different from the second value.