IMAGE DISPLAY DEVICE AND DRIVING METHOD THEREOF

摘要

A novel driving method is provided in which source line inverting drive or dot inverting drive is performed for a case of driving a plurality of source lines by one D/A converter circuit in a source signal line driver circuit of an active matrix image display drive that corresponds to digital image signal input. In a first driving method of the present invention, two systems of grey-scale electric power supply lines are supplied to a source signal line driver circuit in order to obtain output having differing polarities from a D/A converter circuit, switches for connecting to the two systems of grey-scale electric power supply lines are prepared in each D/A converter circuit, the grey-scale electric power supply lines connected to each D/A converter circuit are switched in accordance with a control signal input to the switches, and source line inverting drive or dot inverting drive are performed.

主权项

1. An image display device comprising:
a source signal line driver circuit; a gate signal line driver circuit; a plurality of pixel electrodes, each pixel electrodes located in each region at which a plurality of source signal lines and a plurality of gate signal lines intersect; and a plurality of switching elements for driving the pixel electrodes; wherein the source signal line driver circuit has a plurality of D/A converter circuits, each D/A converter circuits converting a digital image signal into an analog image signal, and a plurality of source line selection circuit; wherein each source line selection circuits selects the source signal line corresponding to the digital image signal, from among the plurality of source signal lines, synchronously with the timing at which the digital image signal is input to the D/A converter circuit; and wherein the analog image signal output from the D/A converter circuit is written out to the selected source signal line.