Patent ID: 9354459
Filing Date: 2016-05-31
CPC Classification: G02F,G09G

Claim Text:
1. A liquid crystal display device in which a pixel formation portion forming one pixel includes a first sub-pixel portion including a first pixel electrode and a second sub-pixel portion including a second pixel electrode, and which includes: a liquid crystal panel substrate including a display unit for displaying an image; a first auxiliary capacitance wiring line arranged on the liquid crystal panel substrate such that a first auxiliary capacitance is formed between itself and the first pixel electrode; and a second auxiliary capacitance wiring line arranged on the liquid crystal panel substrate such that a second auxiliary capacitance is formed between itself and the second pixel electrode, the liquid crystal display device comprising: an auxiliary capacitance signal generating circuit that generates a first auxiliary capacitance signal to be provided to the first auxiliary capacitance wiring line, and a second auxiliary capacitance signal to be provided to the second auxiliary capacitance wiring line; an auxiliary capacitance wiring line short-circuiting circuit that short-circuits the first auxiliary capacitance wiring line and the second auxiliary capacitance wiring line to each other based on a control signal, scanning signal lines arranged on the liquid crystal panel substrate so as to extend in parallel with the first auxiliary capacitance wiring line and the second auxiliary capacitance wiring line; and a scanning signal line drive circuit for driving the scanning signal lines, wherein the auxiliary capacitance wiring line short-circuiting circuit is formed on a board provided near one edge portion, in a direction in which the first auxiliary capacitance wiring line and the second auxiliary capacitance wiring line extend, of the liquid crystal panel substrate, the auxiliary capacitance wiring line short-circuiting circuit is formed on a same board as the scanning signal line drive circuit, and the auxiliary capacitance wiring line short-circuiting circuit and the scanning signal line drive circuit are provided within a same semiconductor chip.