Patent ID: 8508453

Claim:
A display panel driving apparatus for driving, a display panel including a plurality of display cells, each including pixels, in accordance with an inputted image signal, the display panel driving apparatus comprising: as first latch section comprising a plurality of first latch groups that each include a plurality of first latches, the plurality of first latch groups configured to successively read and hold a pixel data piece for each pixel based on the inputted image signal; a second latch section comprising a plurality of second latch groups that each include a plurality of second latches, the plurality of second latch groups configured to successively read and output pixel data pieces every Q pieces with a predetermined time difference therebetween in accordance with a load signal, where Q is an integer equal to or larger than 2; a time difference adding section supplying signals to the plurality of second latch groups to shift a timing that each of the plurality of second latch groups successively reads and outputs pixel data pieces; a drive potential generating section that generates a drive potential to drive each of the display cells based on the outputted pixel data pieces; an output gate section that applies the drive potentials to the respective display cells of the display panel, simultaneously after an elapse of a predetermined tune period from a timing of supplying the load signal; and a timer supplying an output switch signal to the output gate section to turn off switches of the output gate section to bring source lines of the display panel into a high impedance state, wherein the timer is configured to receive the load signal and generates the output switch signal responsive to the load signal.