Patent ID: 9595233
Date: 2017-03-14
CPC Classifications: G09G

Claim:
1. An active matrix-type display device comprising: a display unit having a plurality of data signal lines, a plurality of scanning signal lines intersecting the plurality of data signal lines, and a plurality of pixels arranged in a matrix form at respective intersections of the plurality of data signal lines and the plurality of scanning signal lines; a scanning signal line drive circuit sequentially selecting and activating the plurality of scanning signal lines; a data signal line drive circuit which alternately applies a positive voltage and a negative voltage to the data signal lines; and a plurality of discharge circuits connecting the data signal lines to which the positive voltage is applied and the data signal lines to which the negative voltage is applied, the number of the data signal lines to which the positive voltage is applied being equal to the number of the data signal lines to which the negative voltage is applied, wherein the data signal line drive circuit alternately applies the positive voltage and the negative voltage according to the video signal to the data signal lines, and then applies first reset voltages whose absolute values are equal, and whose polarities are the same as those of the voltages according to the video signal to each of the data signal lines, and after the first reset voltages are applied to the data signal lines every horizontal period, the discharge circuit short-circuits the data signal lines connected to the discharge circuit.