Patent ID: 8854440

Claim:
A three dimensional image display device, comprising: a display panel that alternately displays a left eye image and a right eye image, wherein a common voltage synchronized with a voltage reset signal is applied to the display panel and the voltage reset signal is maintained at a high level for a predetermined time before the left eye image or the right eye image is input, wherein the common voltage is a first voltage in which a reset voltage is added to a reference common voltage a first time the voltage reset signal is at the high level and the common voltage is a second voltage in which the reset voltage is subtracted from the reference common voltage a second time the voltage reset signal is at the high level, wherein a gate-on voltage is simultaneously applied to a plurality of gate lines while the voltage reset signal is maintained at the high level, wherein the three dimensional image display device further includes a gate-on voltage switching unit that simultaneously applies the gate-on voltage to the plurality of gate lines in response to the voltage reset signal having the high level being input to the gate-on voltage switching unit, wherein the gate-on voltage switching unit comprises a first output terminal and a second output terminal, the first output terminal is directly connected to the plurality of gate lines, the second output terminal is directly connected to a gate driver, and the gate-on voltage is simultaneously applied to the plurality of gate lines via the first output terminal.