Patent ID: 8054393
Filing Date: 2011-11-08
Classification: G02F,G09G

Abstract:
1. A liquid crystal display device comprising: a first substrate; a second substrate; liquid crystal composition which is sandwiched between the first substrate and the second substrate; a plurality of pixels which are mounted on the first substrate; a pixel electrode which is provided to each pixel; a counter electrode which faces the pixel electrode; a boosting capacitance including a first capacitance electrode and a second capacitance electrode electrically connected to the pixel electrode; a first switching element supplying a video signal to the pixel electrode and the first capacitance electrode of the boosting capacitance in an ON state of the first switching element; a second switching element supplying a video signal to the second capacitance electrode of the boosting capacitance in an ON state of the second switching element; a video signal line supplying a video signal to the first switching element and the second switching element; a scanning signal line supplying a scanning signal for controlling turning on and off of the first switching element; and a boosting scanning signal line supplying a boosting scanning signal for controlling turning on and off of the second switching element, wherein the first switching element is brought into an ON state in response to the scanning signal so as to supply the video signal to the pixel electrode and the first capacitance electrode and, subsequently, the first switching element is brought into an OFF state and, thereafter, the second switching element is brought into an ON state so as to supply the video signal to the second capacitance electrode thus boosting or dropping a voltage of the pixel electrode.