Patent ID: 8049746

Claim:
A display driving apparatus which outputs n drive signals to n display output terminals in a predetermined cycle according to n pixel data included in display data for a single line, n being an integer equal to or greater than two, and each of the n drive signals driving a panel electrode, said display driving apparatus comprising: n level shift units corresponding to the n pixel data and the n display output terminals in a one-to-one relationship, and configured to shift a voltage level of corresponding pixel data and output one of a first potential and a second potential, said n level shift units; a step potential providing unit configured to provide a step potential which is between the first potential and the second potential; a change judgment unit configured to judge whether or not each of the n pixel data has changed from pixel data of an immediately previous cycle; a delay unit configured to generate n timing signals based on a horizontal synchronization signal that synchronizes with the cycle, the n timing signals corresponding to the n display output terminals in a one-to-one relationship and changing with different timings; and a control unit configured to perform control such that the display output terminal corresponding to the pixel data judged to have changed by said change judgment unit is provided with: the step potential provided by said step potential providing unit during a first time period included in each of the cycle; and the first potential or the second potential outputted from said corresponding level shift unit during a second time period that is contained in the cycle, subsequent to the first time period, and different between the display output terminals and is based on a timing of change of the corresponding timing signal.